epson aculaser c2800_3800 service manual

SERVICE MANUAL

A4 Full Color Laser Printer

EPSON AcuLaser C2800/C2800D C3800/C3800D

SEPG06001Confidential

Confidential

Th of EPSON AcuLaser C2800/C2800D/C3800/C3

ny means electronic, mechanical, photocopying, or

. s performance and functions.

Oth ective owners. EP

yright SEIKO EPSON CORPORATION 2007. g Products CS, PL & Environmental ManagementNotice:

e purpose of this manual is to provide the product knowledge and the technical information required for repair or maintenance800D.

All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by aotherwise, without the prior written permission of SEIKO EPSON CORPORATION.

This manual contains confidential information and sensitive matters, special care should be taken when handling the manual

The contents of this manual are subject to change without prior notice as a result of continuing improvements to the productSome of the descriptions or the appearance of some parts in this manual may differ from those on an actual product.

er product names used herein are for identification purpose only and may be trademarks or registered trademarks of their respSON disclaims any and all rights in those marks.

CopImagin

Confidential

Th

Vainfprosym

CH

CH

CH

CH

CH

CH

CH

ng or maintenance procedure, practice or strictly observed, would result in injury or loss

ng or maintenance procedure, practice or strictly observed, could result in injury or loss

ng or maintenance procedure, practice or strictly observed, could result in personal damage to, or destruction of equipment.

d action during maintenance work.

ry action during maintenance work.

rating or maintenance procedure, practice or necessary to accomplish a task efficiently.nal information that is related to a specific ent on the results achieved through a previous

reassembly procedure, practice or condition d in accordance with the specified standards to ts quality.

ng or maintenance procedure, practice or be executed in accordance with the specified in the products quality.is manual consists of the following seven chapters:

rious symbols are used throughout this manual either to provide additional ormation on a specific topic or to warn of possible danger present during a cedure or an action. Be sure to read and understand the information with these bols.

APTER 1 PRODUCT DESCRIPTIONSDescribes the main features, basic specifications, consumable products, periodic replacement parts, and controller interface of the product.

APTER 2 OPERATING PRINCIPLESDescribes each mechanism configurations and explains fundamental operating principle of major components including the control system.

APTER 3 TROUBLESHOOTINGDescribes the troubleshooting procedures that can help you diagnose and resolve problems. The problems are sorted by displayed error codes and phenomena of abnormal image output.

APTER 4 DISASSEMBLY/ASSEMBLYDescribes the step-by-step procedures for disassembling and assembling of the product.

APTER 5 ADJUSTMENTDescribes the settings and the adjustments to be performed during the maintenance work.

APTER 6 MAINTENANCEDescribes preventive maintenance procedures.

APTER 7 APPENDIXProvides the additional information such as panel operations, connector pin layouts, electric wiring diagrams, parts list, and exploded diagrams for reference.

Manual Configuration

Symbols Used in this Manual

Indicates an operaticondition that, if notof life.

Indicates an operaticondition that, if notof life.

Indicates an operaticondition that, if notinjury or may cause

Indicates a prohibite

Indicates a mandato

Indicates an opecondition that is

Provides additiosubject, or commaction.

Indicates a product that must be executemaintain the produc

Indicates an operaticondition that must standards to mainta

Confidential

Sa

Sa

HaKmy00012ECfety-related Symbols

fety Equipment

List of Safety Equipment

Location of Safety Equipment

Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, would result in injury or loss of life.

Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, could result in injury or loss of life.

Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, could result in personal injury or may cause damage to, or destruction of equipment.

Never deactivate the safety equipment installed on the product for any reason whatsoever. (e.g. Making a connection circuit bypasses the safety equipment.)

Name Function/Purpose

rness Assy Interlock Interrupts +24 VDC power supply to HVPS and motors as soon as the COVER ASSY FRONT is opened.

Safety

Harness Assy Interlock

Confidential

D

R

I

V

E

A

S

S

Y

P

H

D

R

I

V

E

A

S

S

Y

M

A

I

N

D

I

S

P

E

N

S

E

R

A

S

S

Y

(

Y

)

/

(

M

)

/

(

C

)

/

(

K

)

H

V

P

S

F

D

R

P

W

B

A

D

U

P

C

L

U

T

C

H

A

S

S

Y

D

U

P

M

O

T

O

R

A

S

S

Y

D

U

P

I

/

L

+

2

4

V

I

/

L

+

2

4

V

I

/

L

+

2

4

V

I

/

L

+

2

4

V

I

/

L

+

2

4

V

I

/

L

+

2

4

V

I

/

L

+

2

4

V

K

m

y

0

0

0

1

3

E

B

+

5

V

D

C

+

3

.

3

V

D

CSafety System Wiring Schematic

L

V

P

S

H

A

R

N

E

S

S

A

S

S

Y

I

N

L

E

T

S

W

I

T

C

H

P

O

W

E

R

F

U

S

E

R

A

S

S

Y

P

W

B

A

M

C

U

D

C

P

o

w

e

r

S

u

p

p

l

y

A

C

H

A

C

N

H

e

a

t

e

r

C

o

n

t

r

o

l

H

e

a

t

e

r

O

N

A

C

H

A

C

H

H

A

R

N

E

S

S

A

S

S

Y

I

N

T

E

R

L

O

C

K

F

u

s

e

r

C

o

n

t

r

o

l

+

2

4

V

D

C

C

L

U

T

C

H

A

S

S

Y

P

H

R

E

G

I

S

O

L

E

N

O

I

D

F

E

E

D

M

S

I

R

O

S

A

S

S

Y

C

L

U

T

C

H

A

S

S

Y

P

H

T

U

R

N

C

L

U

T

C

H

A

S

S

Y

P

H

F

E

E

D

T

R

A

N

S

F

E

R

A

S

S

Y

+

5

V

D

C

+

3

.

3

V

D

C

C

L

U

T

C

H

A

S

S

Y

P

H

T

U

R

N

C

L

U

T

C

H

A

S

S

Y

P

H

F

E

E

D

D

R

I

V

E

A

S

S

Y

O

P

T

P

W

B

A

O

P

T

F

D

R

I

/

L

+

2

4

V

I

/

L

+

2

4

V

I

/

L

+

2

4

V

I

/

L

+

2

4

V

I

/

L

+

2

4

V

I

/

L

+

2

4

V

I

/

L

+

2

4

V

I

/

L

+

2

4

V

+

5

V

D

C

+

3

.

3

V

D

C

+

5

V

D

C

+

3

.

3

V

D

C

P

W

B

A

E

S

S

H

e

a

t

e

r

T

h

e

r

m

o

s

t

a

t

T

h

e

r

m

i

s

t

e

r

+

2

4

V

D

C

Confidential

La

L

5 mV

00/C2800D) 770 nm ~ 800 nm

00/C3800D) 785 nm

nd adjustment procedures not specified herein zardous radiation exposure.ble or attempt to adjust the ROS Assy for any

ver. When the ROS Assy malfunctions, replace e.ser Beam

Safety-related Label (Caution Label)/Laser Opening Location

Laser Specifications

Handling Precautions

aser Openings

ROS Assy

Maximum output power

Wavelength (AcuLaser C28

Wavelength (AcuLaser C38

Disassembling amay result in ha

Do not disassemreason whatsoeit with a new on

Confidential

Pr

to an electrical outlet that matches the printers wer requirements.

other devices to the electrical outlet supplying can cause overloading of the electrical circuit .

cords or power adapters to plug multiple e outlet. Power plug and electrical outlet should foreign objects.

e properly grounded to prevent electric shock. inal should be one of the followings:ical outletded by a D-type grounding construction.

d-type grounding construction; grounding 100 ). ot be deformed or damaged. If the cord is with a new one dedicated for the product.

user Unit or any other parts to which AC sure to check the part is properly installed and s are not caught between metal parts. n electric shock may occur.

upply Unit must not be replaced under any ohibited Matters

Never deactivate the safety equipment installed on the product for any reason whatsoever.

Never modify the safety equipment or replace it with part not approved by EPSON. Doing so may cause the safety functions to stop working properly, and may result in fire or injury.

Never modify the product. If you are instructed to do so, however, fully understand the instruction and perform the modification.

To prevent an electric shock, burn, injury, etc., always turn the printer off and unplug the power cord before starting maintenance work. When the power supply cable must be connected to measure voltage or for any other task, strictly follow the instructions and use extreme caution in working on electronic components.Pay particular attention to the high-voltage part indicated with the symbol on the left.

Do not touch the high temperature parts indicated with the symbol on the left. Those parts are extremely hot immediately after use. If you need to replace those parts, leave the printer until it cools.

Use the specified service parts for repair and maintenance.

When using compressed air products; such as air duster, for cleaning during repair and maintenance, the use of such products containing flammable gas is prohibited.

Connect the printer rated voltage and po

Do not connect any the printer. Doing soand may cause a fire

Do not use extensiondevices into the sambe free from dust or

The printer should bThe grounding terma. One of the electrb. One that is groun

(The former thirresistance under

Power cord should ndamaged, replace it

After replacing the Fvoltage is applied, bethe connecting cableOtherwise a fire or a

Fuse on the Power Scircumstances.

Confidential

leaner for home use to clean up spills of e very fine particles can cause fire/explosion. hly with a broom or wipe them with a cloth ral detergent. If a large amount of toner is acuum designed specifically to clean toner.ed by the printer as a by-product of the e amount of gas is too small to be harmful, may feel uncomfortable under the following

rable to advice the users to ventilate the room ter.printer for a long period of time in a room with . large amount of documents at a time.

ltiple printers in the same room.ensitive microprocessors and circuitry, use pment, such as anti-static wrist straps, when mponents.

(27.0 kg (59.5 lb.) excluding toner cartridges nit and Duplex Unit) and must be lifted

or more people.

r alcohol when cleaning the product as it may n or deformation.Before performing repair and maintenance work, read and understand the documents of the product (e.g. service manual). Be sure to follow the specified steps and use the prescribed tools described in the documents.

When disassembling or assembling the product, make sure to wear gloves to avoid injury from metal parts with sharp edges.

Take care not to drop any screws, washers, or clips inside the printer body. Should it fall in, do not boot up your printer until the part has been safely removed.

After reassembling the printer, make sure all the parts and the screws are put back in place and the cables are not caught between metal parts.

Though toner and developer are safe for human body, they may cause irritation to skin and eyes. If toner gets into your eyes, wash it away immediately with water. If irritation continues, see a physician. If toner gets in your mouth, rinse immediately with plenty of water. If swallowed, induce vomiting and consult a physician.Do not throw used toner cartridges or toner into the flames.

Do not use vacuum cpowdered toners. ThSweep them thorougmoistened with neutspilled, use a toner vOzone gas is generatprinting process. Thhowever, some usersconditions. It is desiwhen using the prin When using the

poor ventilation When printing a When using muIn order to protect sstatic discharge equiaccessing internal co

The printer is heavyincluding Transfer Uhorizontally by two

Do not use thinner oresult in discoloratio

Confidential

This manual is revised when the system, component, or part of the product is modified as a result of continuing improvements to the products performance and functions. See the table below for recent updates.

Revision History

Revision Date of Issue Description

A September 29, 2006 First Release

B November 8, 2006 Revision up: Chapter 1

Over view(p14) / Printer Specifications(P15) / Dimensions and weight(P18) / Supported papers(P20) / External interfaces(P25)Some items were revised.

C October 16, 2007 Revision up: All Chapter

Information on AcuLaser C2800/C2800D has been added.

Confidential

Ch1.11.2

1.31.4

Ch2.12.22.3

2.4

2.5

........................................................................ 52

........................................................................ 53

........................................................................ 55

........................................................................ 56

........................................................................ 59

........................................................................ 59

........................................................................ 60

........................................................................ 60trol................................................................... 61........................................................................ 62l...................................................................... 64........................................................................ 65........................................................................ 66........................................................................ 66, M, C, K) ....................................................... 69........................................................................ 70........................................................................ 71........................................................................ 72........................................................................ 73........................................................................ 75Contentsapter 1 PRODUCT DESCRIPTION Overview ............................................................................................................ 14 Product Specifications ........................................................................................ 15

1.2.1 Basic Specifications................................................................................. 151.2.2 Paper Specifications ................................................................................ 211.2.3 Replacement Parts ................................................................................... 241.2.4 Controller Specifications ......................................................................... 25

List of Printer Messages ..................................................................................... 27 Product Comparison ........................................................................................... 29

apter 2 OPERATING PRINCIPLES Print Process Overview ...................................................................................... 31 Print Process Diagram ........................................................................................ 32 Technical Explanation of Print Process.............................................................. 33

2.3.1 Charging .................................................................................................. 332.3.2 Exposure .................................................................................................. 342.3.3 Development............................................................................................ 352.3.4 Transfer (Drum Paper) ........................................................................ 362.3.5 Cleaning (Toner Cartridge) ..................................................................... 372.3.6 Discharging.............................................................................................. 382.3.7 Fusing ...................................................................................................... 392.3.8 Cleaning (Transfer Belt) .......................................................................... 39

Paper Feed .......................................................................................................... 402.4.1 Paper Feed Path ....................................................................................... 402.4.2 Paper Feed Path Layout........................................................................... 40

Main Structures and Functions........................................................................... 412.5.1 Paper Cassette.......................................................................................... 412.5.2 Paper Feeder ............................................................................................ 432.5.3 MSI & Regi Assy .................................................................................... 442.5.4 Transfer Belt & Fuser .............................................................................. 472.5.5 ROS ASSY .............................................................................................. 492.5.6 Xerographics............................................................................................ 50

2.5.7 Drive ...............................2.5.8 Electrical .........................2.5.9 Duplex.............................2.5.10 550 Paper Feeder ..........

2.6 Mode ..........................................2.6.1 Operating Modes.............

2.7 Control .......................................2.7.1 Paper Size Control ..........2.7.2 ROS Light Intensity Con2.7.3 Process Control ...............2.7.4 Color Registration Contro2.7.5 Fuser Control ..................

2.8 Drive Transmission Path............2.8.1 DRIVE ASSY MAIN .....2.8.2 TONER DISPENSER (Y2.8.3 DRIVE ASSY PH...........2.8.4 MOTOR ASSY DUP......2.8.5 DRIVE ASSY OPT FDR

2.9 Features of the Controller ..........2.9.1 Power Supply..................

Confidential

Ch3.1

3.2

3.3

3.43.5

3.6

3.7

3.8

EASSEMBLY...................................................................... 160...................................................................... 160...................................................................... 160...................................................................... 161...................................................................... 163...................................................................... 177r ..................................................................... 177...................................................................... 179...................................................................... 182...................................................................... 187...................................................................... 192RT 1) ............................................................ 211RT 2) ............................................................ 217 1) ................................................................. 221 2) ................................................................. 226T 3) ............................................................... 240T 4) ............................................................... 253...................................................................... 268RT 1) ............................................................. 271RT 2) ............................................................. 280 1) ................................................................. 298...................................................................... 301...................................................................... 309...................................................................... 317) ................................................................... 327) ................................................................... 337) ................................................................... 343

...................................................................... 349(PART 1)...................................................... 358(PART 2)...................................................... 364(PART 3)...................................................... 370(PART 4)...................................................... 375apter 3 TROUBLESHOOTING Procedure for Troubleshooting........................................................................... 77

3.1.1 Procedure for Troubleshooting................................................................ 773.1.2 Preliminary Check ................................................................................... 773.1.3 Precautions in Performing Troubleshooting Work.................................. 783.1.4 Notes on Using FIP ................................................................................. 79

FIP ...................................................................................................................... 803.2.1 FIP ........................................................................................................... 803.2.2 The flow of FIP ....................................................................................... 803.2.3 List of Warnings and Errors .................................................................... 813.2.4 List of Service Request............................................................................ 85

Engine-related Trouble FIP ................................................................................ 873.3.1 Level 1 FIP .............................................................................................. 873.3.2 Level 2 FIP ............................................................................................ 121

Controller-related Trouble FIP ......................................................................... 133 Print Quality Trouble FIP................................................................................. 135

3.5.1 Print Quality Troubleshooting Entry Chart ........................................... 1353.5.2 Cycle of the Rollers .............................................................................. 1363.5.3 Print Quality FIP.................................................................................... 137

Abnormal Noise-related Trouble...................................................................... 1513.6.1 Abnormal Noise-related Troubleshooting Entry Chart ......................... 1513.6.2 Abnormal Noise-related FIP.................................................................. 152

Test Print .......................................................................................................... 1543.7.1 What is Test Print? ................................................................................ 1543.7.2 How to Print .......................................................................................... 154

Symptoms When Connectors are Disconnected............................................... 1563.8.1 Reliability .............................................................................................. 158

Chapter 4 DISASSEMBLY/R4.1 Preliminary Check .....................

4.1.1 Required Tools................4.1.2 Prohibited Disassembly ..

4.2 Major Reassembly Unit .............4.3 Disassembly Flowchart..............4.4 Disassembly/Reassembly...........

4.4.1 How to Read this Chapte4.4.2 COVER (PART 1) ..........4.4.3 COVER (PART 2) ..........4.4.4 COVER (PART 3) ..........4.4.5 COVER (PART 4) ..........4.4.6 PAPER CASSETTE (PA4.4.7 PAPER CASSETTE (PA4.4.8 PAPER FEEDER (PART4.4.9 PAPER FEEDER (PART4.4.10 PAPER FEEDER (PAR4.4.11 PAPER FEEDER (PAR4.4.12 TRANSFER (PART 1) .4.4.13 XEROGRAPHICS (PA4.4.14 XEROGRAPHICS (PA4.4.15 FUSER & EXIT (PART4.4.16 FRAME (PART 1)........4.4.17 FRAME (PART 2)........4.4.18 DRIVE ..........................4.4.19 ELECTRICAL (PART 14.4.20 ELECTRICAL (PART 24.4.21 ELECTRICAL (PART 34.4.22 DUPLEX.......................4.4.23 550 OPTION FEEDER 4.4.24 550 OPTION FEEDER 4.4.25 550 OPTION FEEDER 4.4.26 550 OPTION FEEDER

Confidential

Ch5.15.2

Ch6.16.2

Ch7.1

7.2

7.37.4

7.5apter 5 ADJUSTMENT Adjustment Items.............................................................................................. 382 Adjustment ....................................................................................................... 383

5.2.1 Adjusting Color Registration Alignment (Auto) ................................... 3835.2.2 Adjusting Color Registration Alignment (Manual)............................... 3845.2.3 Writing USB ID..................................................................................... 3855.2.4 MCU Maintenance Program.................................................................. 387

apter 6 MAINTENANCE Consumable Products/Products that Require Periodic Replacement ............... 390 Cleaning............................................................................................................ 392

apter 7 APPENDIX Connectors........................................................................................................ 396

7.1.1 List of Plugs and Jacks .......................................................................... 396 Control Panel Special Features......................................................................... 402

7.2.1 Operational Procedures and Functions .................................................. 4027.2.2 Special Menu ......................................................................................... 403

Firmware Update .............................................................................................. 406 Information Sheets............................................................................................ 413

7.4.1 Status Sheet ........................................................................................... 4137.4.2 Engine Status Sheet ............................................................................... 4147.4.3 Print Log Report .................................................................................... 417

Exploded diagrams and Parts List .................................................................... 419

Confidential

C H A P T E R

1PR CT DESCRIPTIONODU

EPSON AcuLaser C2800/C2800D/C3800/C3800D Revision C

P 14Confidential

1.AcadvhasoptC2

. Product View

Ac

Ac

Ac

Ac

Ac

AcRODUCT DESCRIPTION Overview

1 OverviewuLaser C2800/C2800D/C3800/C3800D is a non-impact color page printer that takes antage of a laser and electrophotographic technologies. AcuLaser C2800D/C3800D a duplex unit as part of its standard equipment, whereas the unit is available as an ional device for AcuLaser C2800/C3800. Listed below are the features of AcuLaser 800/C2800D/C3800/C3800D:

Prints on A4 paper(User defined paper size: 76.20 x 98.40 mm ~ 220 x 355.6 mm)

High-speed tandem printing engineUp to 20 ppm (color) and 25 ppm (monochrome) in A4 single-sided printing

Flexible paper handling capabilities

Full color, high quality printing up to 1200 dpi

Compact and lightweight

* : The depth (D) varies up to 577mm according to the sizes of the loaded paper.

Provides three interfaces as standard

USB 1.1(2.0FS) Host I/F (AcuLaser C3800/3800D only) Ethernet (100BaseTX/10BaseT) I/F USB 2.0HS I/FCombination imaging cartridge-photoconductor units that offer users reduced maintenance

Switches to monochrome mode when a color imaging cartridge is empty

Figure 1-1

Model name MP tray Standard lower paper cassette (Standard)550-sheet paper cassette

unit (optional)

uLaser C2800/C2800D150 sheets

250 sheets550 sheets

uLaser C3800/C3800D 550 sheets

Model name Dimensions (W x D x H) Weight

uLaser C2800408 x 501* x 476.5 mm

22.5 kg

uLaser C2800D 23.6 kg

uLaser C3800420 x 501* x 508 mm

25.8 kg

uLaser C3800D 27.0 kg


P 15Confidential

1.

1.

PR

Pr

Pr(S

W

Fir

Di

W

Po

Po(11/ 2

300,000 pages or five years, whichever comes first

150,000 pages

Average:2,000 pages / monthMax.: 60,000 pages / month

MTTR*7: Less than 30 minutes (average)

51 dB

30 dB

AcuLaser C2800/C2800D10 ~ 32 C15 ~ 85% RH*6

AcuLaser C3800/C3800D5 ~ 32 C15 ~ 85% RH*6

0 ~ 3,500 m(1013 hPA ~ 658 hPA)

Difference between front and back:Approx. less than 5 mmDifference between left and right:Approx. less than 5.5 mm

Less than 3,000 lx (should not be exposed to direct sunlight)

0 ~ 35 C15 ~ 80% RH*6RODUCT DESCRIPTION Product Specifications

2 Product Specifications

2.1 Basic Specifications

INTER SPECIFICATIONS

int resolution 600 dpi, 1200 dpi

int speed*1ingle-sided /Duplex)

Color 20 ppm / 14 ppm

Monochrome 25 ppm / 17.3 ppm

arm-up time 22C, 55% RH Less than 32 seconds*2 (110-120 V)Less than 30 seconds*2 (220-240 V)

st print out*3 Color Less than 15.0 secondsMonochrome Less than 15.0 seconds

mensions (W x D x H)*4 AcuLaser C2800/C2800D408 x 501 ~ 577 x 476.5 mm

AcuLaser C3800/C3800D420 x 501 ~ 577 x 508 mm

eight (Main unit) AcuLaser C280024.0 kg

AcuLaser C2800D25.1 kg

AcuLaser C380025.8 kg

AcuLaser C3800D27.0 kg

wer supply AC 120 V 10% / 50 or 60 Hz 3HzAC 220 V ~ 240 V 10% / 50 or 60 Hz 3Hz

wer consumption0-120 V

20-240 V)

Max. Single-sided 730 W / 730 W

Duplex 750 W / 750 W

Average continuous printing

Color: 376 W / 361 WMonochrome: 354 W / 347 W

Average in stand-by mode (heater: ON)

82 W / 78 W

Average in sleep mode (heater: OFF)

24 W / 25 W

Average in extremely low-power mode

17 W / 17 W

Life*5

MPBF*4

Durability

Serviceability

Noise Printing

Standing by

Environmental conditions (operating)

Temperature and humidity

Altitude (Air pressure)

Levelness

Illumination

Storage and transportation conditions

Temperature and humidity


P 16Confidential

Sareg

AcuLaser C2800/C2800D

EN55022, Class B EN55024 (IEC61000-4-2/IEC61000-4-

3/IEC61000-4-4/IEC 61000-4-11) CNS13438 Class B

AcuLaser C3800/C3800D FCC Part15 Subpart B, Class B

(ANSI C63.4)


EN55022, Class B EN55024 (IEC61000-4-2/IEC61000-4-

3/IEC61000-4-4/IEC61000-4-5/IEC61000-4-6IEC61000-4-8/IEC 61000-4-11)

EN61000-3-2 (Harmonics) EN61000-3-3 (Flicker)

AcuLaser C3800/C3800D EN55022, Class B IEC-61000-4-3/IEC-61000-4-4/IEC-

61000-4-6 IEC-61000-4-8 EN61000-3-2 (Harmonics) Class A EN61000-3-3 (Flicker) EN61000-4-5 (IEC61000-4-5)

Less than 10.0 mg/h

Less than 2.0 mg/h

Less than 1.0 mg/h

Less than 4.0 mg/h

Less than 0.05 mg/hRODUCT DESCRIPTION Product Specifications

fety and ulations

Safety standards AcuLaser C2800/C2800D

2006/95/EC EN60950-1 EN60825-1 CNS14336

AcuLaser C3800/C3800D UL60950 3rd Edition CSA C22.2 No.60950-00 FDA21CFR Chapter 1 Laser Product,

Subchapter J, Section 1010, 1040


2006/95/EC EN60950-1 EN60825-1

AcuLaser C3800/C3800D IEC60950 3rd Edition EN60950 3rd Edition IEC60825 Class 1 Laser Product CE Directive Nordic Agency Approvals

EMC

Exhaust gas TVOC

Ozone density

Styrene density

Dust density

Benzene


P 17Confidential

OP

25ca

55ca

DRODUCT DESCRIPTION Product Specifications

*1: Conditions: A4, plain paper, continuous printingThe values vary depending on paper type and size.

*2: Less than 30 seconds from sleep mode.

*3: Paper feeder = MP tray, Paper size = A4

*4: Main unit only.

*5: A4, continuous printing, independent of color/monochrome ratio.

*6: No condensation.

*7: Mean Time To Repair: Time required for service personnel to determine and correct the cause of the malfunction.

TIONAL UNIT

* : AcuLaser C2800D/C3800D are equipped with a duplex unit as a standard feature.

0-sheet paper ssette unit

Capacity: Up to 250 sheetsPaper size: A4, A5, B5, Letter, Executive, LGL 13 (GLG), LGL 14

0-sheet paper ssette unit

Capacity: Up to 550 sheetsPaper size: A4, A5, B5, Letter, Executive, LGL 13 (GLG), LGL 14

uplex unit* Paper size: A4, A5, B5, Letter, Executive, LGL 13 (GLG), LGL 14


P 18Confidential

EX

Name

interface connector

sette cover (optional)

sette cover (standard)

r option expanded aperture plate

16

17

15RODUCT DESCRIPTION Product Specifications

TERNAL VIEW AND PART NAMES

Figure 1-2. External View and Part Names

Table 1-1. Part Names

No. Name No. Name No.

1 Control panel 7 I/F cover 13 Ethernet

2 MP tray (Multi-Purpose tray) 8 Power switch 14 AC inlet

3 Standard lower paper cassette 9 Output tray extension 15 Paper cas

4 550-sheet paper cassette unit 10 FG screw 16 Paper cas

5 USB Host interface 11 USB interface connector 17 Controlle

6 Latch on front cover (Cover A) 12 Type-B interface card slot cover

1

2

3

9

5

8

7

6

11

12

13

10

144


P 19Confidential

DI

Th

NO

A4

A5



24.0 kg 25.8 kg

varies depending on the installation the standard lower paper cassette.



te unit 7.8 kg

unit 25.1 kg 27.0 kg

paper 31.8 kg 33.6 kg

nit + te unit 32.9 kg 34.8 kg

varies depending on the installation the standard lower paper cassette.

A6

A6RODUCT DESCRIPTION Product Specifications

MENSIONS AND WEIGHT

e following figure shows the dimensions and weight of the printer.

TE 1 : Manufacturing tolerance is 1% mm in dimensions and 1% kg in weight.2 : Imaging cartridges are not included in the weight of the main unit.

Figure 1-3. Main Unit (Unit: mm)

Figure 1-4. Main Unit with Optional Units Installed (Unit: mm)

420

501 ~ 577 *

450

51 ~ 127.3 *

cuLaser C2800/C2800D65 mm


Main Unit

* : Dimensionposition of

420450

501 ~ 577*

51 ~ 127.3*

550-sheet paper casset

Main unit + Duplex

Main unit + 550-sheetcassette unit

Main unit + Duplex u550-sheet paper casset

* : Dimensionposition of

cuLaser C2800/C2800D14.5 mm



P 20Confidential

IN

ThBeRODUCT DESCRIPTION Product Specifications

STALLATION SPACE REQUIREMENTS

e following figure shows the dimensions of the space required around the printer. sure to provide the space for installation, operation, and maintenance.

Figure 1-5. Installation Space Requirements

100

100

1178

127.3

350

unit: mm

AcuLaser C2800/C2800D826.5 mm

AcuLaser C3800/C3800D858 mm


P 21Confidential

1.

SU

No

Feeding Assurance*3

andard Paper Plain Paper Special Media

O X

O

O

(Thick paper only)

O XRODUCT DESCRIPTION Product Specifications

2.2 Paper Specifications

PPORTED PAPERS

te : Always test a sample of paper stock before purchasing large quantities or printing large jobs.

*1: Standard paper: RX-80, Xerox 4024 paper Plain paper: Commonly used copy paper, recycled paper, or quality paper (60 ~ 105 g/m2)

*2: Conditions: 22 C/55% RH.

*3: O: Paper feeding and print quality are guaranteed. : Paper feeding and printing are possible (reserved for papers that are used commonly).

Print quality is NOT guaranteed. X: Not supported.

Table 1-2. Supported Papers

Paper FeederPaper Type

Paper Size Capacity(Height)*2Type*1 Weight St

Standard Standard lower paper cassette

Standard paper Plain paper

60 ~ 105 g/m2 A4, A5, B5, Letter, Executive, LGL 13 (GLG), LGL 14

550 sheets(59.4 mm)

MP tray Standard paper Plain paper

60 ~ 105 g/m2 A4, A5, B5, Letter, Half letter, GLT, Executive, LGL 13 (GLG), LGL 14

150 sheets(15 mm)

Special media

Transparency --- A4, Letter 75 sheets

Label --- A4, Letter ---(15 mm)

Thick paper Extra thick paper

106 ~ 163 g/m2164 ~ 216 g/m2

A4, A5, B5, Letter, Half letter, Executive, GLT

---(15 mm)

Envelope 75 ~ 105 g/m2 DL, ISO-B5, C5 ---(15 mm)

User defined 60 ~ 216 g/m2 Width: 76.20 mm ~ 220.00 mm Length: 98.40 mm ~ 355.60 mm

150 sheets(15 mm)

Duplex unit Standard paper Plain paper


---

Option 550-sheet paper cassette unit

Standard paper Plain paper


550 sheets(59.4 mm)


P 22Confidential

UN

Thpap

RODUCT DESCRIPTION Product Specifications

SUITABLE PAPERS

e following types of paper should not be used, otherwise decreased print quality, er misfeeds, or damage to the printer may occur.

Paper that has been treated, such as carbon-backed, non-carbon, heat-sensitive, pressure-sensitive, or acid paper

Paper that is either extremely thick or extremely thin

Damp paper

Art paper, coated paper for color printers

Extremely smooth or extremely rough paper, or paper with uneven surface

Perforated paper or paper with punched hole

Folded, curled, wrinkled, or torn paper

Paper of a non-standard shape (not rectangular)

Label that peels off easily

Paper that is bounded with glue, staples, or paper clips

Inkjet printer paper (Photo Quality Ink Jet Paper, Glossy Paper, Glossy Film, etc.)

Paper that has been printed on by a heat-transfer printer or an inkjet printer

Transparency for other color laser printers or color photocopiers

Paper that has been printed on by another color/monochrome laser printer or a photocopier

Sheets of paper stuck together

Postcards for inkjet printers

Iron-on Transfer Paper (for inkjet printers or laser printers)

Paper that deteriorates or discolors at 190 C or lower

When using illustrated postcards, paper feed rollers may be soiled with paper dust and these cards may not be fed properly. In this case, clean the rollers with reference to Chapter 6 MAINTENANCE (p.389)


P 23Confidential

PR

(A4 or Letter)

DL ISO-B5, C5

on the MP tray with the side to be printed face

on envelopes, set the release lever to envelope

lopes that are attached with tape or glue. gle flap envelopes, use trapezoidal envelopes. RODUCT DESCRIPTION Product Specifications

INTABLE AREA

Maximum guaranteed print area (Printing and quality are guaranteed)

Paper width: 212 mm x Length: 347.6 mm

Maximum printable area (Printing is guaranteed)

Paper width: 215 mm x Length: 351.6 mm

Guaranteed print area/Printable area

Area excluding 4-mm margins on all four edges

Table 1-3. Guaranteed Print Area/Printable Area

ENVELOPE ORIENTATION

PAPER EJECT/CAPACITY

Paper ejectFace down

Capacity250 sheets*

* : Calculated on a standard paper

4.0 mm 4.0 mm

4

.

0

m

m

4

.

0

m

m

Envelope Size

Feeding Direction

Load envelopes down.

Before printing position.

Do not use enve Do not use trian


P 24Confidential

1.

CO

ERIODIC REPLACEMENT

Im

Im

Im

Im

Tra

Fu

Fu

Life

200,000 pages

200,000 pages

200,000 pages

SI 30,000 pages

dger rollers are exactly the same parts, their g to the installation positions. vided in a set as an ASP by the name of KIT

SEC, be sure to replace these rollers at one RODUCT DESCRIPTION Product Specifications

2.3 Replacement Parts

NSUMABLE PRODUCTS

PRODUCTS THAT REQUIRE P

NameLife

AcuLaser C2800/C2800D AcuLaser C3800/C3800D

aging cartridge (K) 3,000 pages (Standard capacity) 9,500 pages

8,000 pages (High capacity)

aging cartridge (Y) 2,000 pages (Standard capacity) 5,000 pages (Standard capacity)

6,000 pages (High capacity) 9,000 pages (High capacity)

aging cartridge (M) 2,000 pages (Standard capacity) 5,000 pages (Standard capacity)


aging cartridge (C) 2,000 pages (Standard capacity) 5,000 pages (Standard capacity)


nsfer unit 100,000 pages 100,000 pages

ser unit: 120 V 100,000 pages 100,000 pages

ser unit: 220 V 100,000 pages 100,000 pages

The imaging cartridges of AcuLaser C2800/C2800D and AcuLaser C3800/C3800D are not exchangeable.

Name

Retard roller

Feed roller

Nudger roller

HOLDER ASSY RETARD M

Retard, feed, and nunames vary accordinThese rollers are proROLL ASSY FEEDtime.


P 25Confidential

1.

BA

ase, an add-on memory can be installed in the S1 slot only.

CP

En

RA

RO

Co

Pr

Pr

sheet check sheetNetConfig(Web)umpe job listatus sheetrt modeoverlay listrk status sheetample (for each mode)r adjust menustatus sheet (only when Type-B level 3 is installed)xt I/F status sheet (only when connected to D4

iant USB devices)enance mode (Engine status sheet)for engine firmware update, only when a Flash is ed as a mechanical controller ROM)

RAM to the printer, standard RAM DIMM be replaced according to the capacity of the

g to 1024MB, remove the standard RAM o 512MB DIMMs.RODUCT DESCRIPTION Product Specifications

2.4 Controller Specifications

SIC SPECIFICATIONS

*1 : In AcuLaser C2800/C2800D's c

U AcuLaser C2800/C2800D : PowerPC750FL (400 MHz)AcuLaser C3800/C3800D : PowerPC750FL (600 MHz)

hanced technology CPGI, CRIT, RIT (FMV)

M DDR333 200 pin SO DIMM, CL=2.5

Standard 128MB (S0 slot)

Maximum AcuLaser C2800/C2800D : 640MB (128MB + 512MB)AcuLaser C3800/C3800D : 1GB (512MB + 512MB)

Expansion 128MB, 256MB, 512MB (1 slot (S1 slot))*1

M 32-bit width (3.3 V)

Program 16MB (P slot)

Font Included in the program

Expansion Optional Flash DIMM (A slot)

ntrol panel 22 digits x 5 lines LCD, three LEDs, six buttons

inter setting Panel settings, EJL, PJL, HTTP, SNMP, and ENPC Stored in 256 K bit serial type EEPROM

inter mode Standard ESC/ Page-Color ESCP2 (B/W) I239X (B/W) Adobe PostScript3 PDF1.3 PCLXL FX (B/W) ESC/Page (B/W) PLC5c

Other EJL, PJL, and RCC modes (for firmware update) DIAG mode (engine adjustment)

Auxiliary software Status Toner Epson Hex d Reserv PS3 st Suppo Form Netwo Font s Printe AUX USB E

compl Maint EFU (

install

When adding more (64MB) should also add-on memory.e.g.) When upgradinDIMM and install tw


P 26Confidential

EX

E

TRODUCT DESCRIPTION Product Specifications

TERNAL INTERFACES

* : AcuLaser C3800/C3800D only

Figure 1-6. External Interfaces

Standard USB 1.1 (2.0FS) * 1 ch2.0 HS 1 ch

Ethernet 100BaseTX/10BaseT 1 ch

Option Type-B Level 3 compatible 1 slot

thernet interface connector

USB (2.0 HS)interface connector

ype-B interface card slot cover

USB Host interface connector (1.1)(AcuLaser C3800/C3800D only)


P 27Confidential

1.ThEn

Off

Off

Off

Off

t) Off

Off

Off

Off

ctive I/F) ---

nting OK)) ---

Off

Off

Off

Off

Off

Off

Off

Off

Off

ice Off

ack and White Off

Off

Off

Off

Off

dge

List of Printer Messages

Display Error LED StatusRODUCT DESCRIPTION List of Printer Messages

3 List of Printer Messagese following is a list of messages displayed on the printers control panel when glish is selected in the language option.

Table 1-4. List of Printer Messages

Sort Display Error LED Status

Status

ROM CHECK Off

RAM CHECK Off

Unable Clear Error On

Self Test Off

Reset All All Flashing

Reset Off

Cancel All Print Job Off

Cancel Print Job (by panel) Off

Reset to Save Off

Manual Duplex Flashing 2

Writing ROM A nnn/mmm*1 ---

Writing ROM P nnn/mmm*1 ---

Please Select File ---

Please wait for print ---

USB Memory searching Files : nnn ---

Can't Print File ---

Form Feed Off

Status Sheet Off

ESC/Page Font Sample PCL Font Sample ESCP2 Font Sample FX Font Sample 1239X Font Sample PS3 Status Sheet PS3 Font List

Engine Status Sheet ROM A Information ROM B Information Reserve Job List Form Overlay List Color Adjust Sheet

Off

Status

Warming Up

Calibrating Printer

Cooling Down zz*2 min

Offline

Cancel Print Job (by hos

Sleep

Ready

(Printing)

(Communication with ina

(Job being executed (pri

Warning

Menus Locked

Reserve Job Canceled

Form Data Canceled

Can't Print

Collate Disabled

Check Paper Size

Image Optimum

Check Paper Type

Need Memory

Not Supported USB Dev

Data will be printed in Bl

Format Error ROM A

Replace Toner uuuu*3

uuuu*3 Toner Low

Replace Fuser

Replace Transfer Unit

Worn Fuser

Worn Transfer Unit

NonGenuineTonerCartri

Table 1-4.

Sort


P 28Confidential

d in the order of descending priorities. The message e highest priority.

s, mmm = total number of blocks

s will appear: C, M, Y, K, Cyan(C), Magenta(M), en a message exceeds the display digit in full spelling, ) will appear.

uest (p.85) for details.

paper size in the panel settings.

paper source in the panel settings except Auto.

h paper feed size of the Tray menu in the panel settings.

Flashing 1

Flashing 1

On

On

On

On

On

On

On

Off

List of Printer Messages

Display Error LED StatusRODUCT DESCRIPTION List of Printer Messages

Note : Messages in the table are sorteshown at top of the table has th

*1: nnn = Number of written block

*2: zz = Remaining time (minute)

*3: uuuu = Either of the followingYellow(Y), Black(K). Only whabbreviated forms (C, M, Y, K

*4: See 3.2.4 List of Service Req

*5: Displays relevant values of the

*6: Displays relevant values of the

*7: Displays relevant values of eac

Error

Service Req Cffff*4 All flashing (synchronized with LED)

Service Req Eggg*4 All flashing (synchronized with LED)

Optional RAM Error On

Close Front Cover On

Cassette 2 Error 001 On

DM Error 002 On

Check Transparency On

Paper Jam w w w w w On

Wrong Toner uuuu*3 On

NonGenuineToner uuuu*3 Flashing 2

Toner Cart Error uuuu*3 On

Install uuuu*3 TnrCart On

Install Fuser On

Install Transfer Unit On

Replace Toner uuuu*3 On

Replace Toner uuuu*3 Flashing 2

Replace Transfer Unit On

Printer Open On

Install Cassette-1 On

Manual Feed sss*5 Flashing 2

Can't Print Duplex Flashing 1

Paper Out ttt*6 sss*7 On

Paper Set ttt*6 sss*7 Flashing 1

Print Overrun Flashing 1

Mem Overflow Flashing 1

Table 1-4. List of Printer Messages

Sort Display Error LED Status

Error

Duplex Mem Overflow

Invalid Data

Invalid N/W Module

Invalid PS3

Invalid PCL

Invalid AUX I/F Card

Invalid ROM A

Write Error ROM A

Write Error ROM P

---

(PJL OPMSG)(PJL STMSG)(SelecType)

Toner Check Sheet

Table 1-4.

Sort


P 29Confidential

1.

Re

Pri(PP

Wa

FirOu

CP

RA

Sta

Pa(sh

Pa

Pa

Di

We

C 120 V 10% / 50 or 60 Hz 3Hz C 220 V ~ 240 V 10% / 50 or 60 Hz 3Hz

730 W / 730 W

750 W / 750 W

Color:376 W / 361 WMonochrome:354 W / 347 W

82 W / 78 W

24 W / 25 W

17 W / 17 W

51 dB

30 dB

10 ~ 32 C15 ~ 85% RH

(No condensation)

5 ~ 32 C15 ~ 85% RH

(No condensation)

300,000 pages or five years, whichever comes first

. Product Comparison

Model name


AcuLaser C3800/C3800DRODUCT DESCRIPTION Product Comparison

4 Product Comparison

Table 1-5. Product Comparison

Model name



solution (dpi) 600 dpi, 1200 dpi

nt Speed M)

Simplex B/W 25 ppm

Color 20 ppm

Duplex B/W 17.3 ppm

Color 14 ppm

rm up time (Seconds) Less than 32 seconds*2 (110-120 V)Less than 30 seconds*2 (220-240 V)

st Page t (seconds)

B/W Less than 15.0 seconds

Color Less than 15.0 seconds

U PowerPC750FL (400MHz) PowerPC750FL (600MHz)

M (MB) Standard 128 MB

Maximum 640 MB 1024 MB

ndard Interface USB2.0 HS Ethernet interface

USB 1.1 integrated host USB2.0 HS Ethernet interface

per Input eets)

Standard 400 sheets 700 sheets

Optional 950 sheets 1250 sheets

per Output (sheets) 250 (Face Down)

per Size A4, A5, B5, LT, GLT, HLT, Executive, F4, LGL13, LGL14; From 90 x 139.7mm to 220 x 355.6mm

mensions (W x D x H) 408 x 501 ~ 577 x 476.5 mm 420 x 501 ~ 577 x 508 mm

ight AcuLaser C2800: 24.0 kgAcuLaser C2800D: 25.1 kg

AcuLaser C3800: 25.8 kgAcuLaser C3800D: 27.0 kg

Power supply AA

Power consumption (110-120 V / 220-240 V)

Max. Single-sided

Duplex

Average continuous printing

Average in stand-by mode (heater: ON)

Average in sleep mode (heater: OFF)

Average in extremely low-power mode

Noise Printing

Standing by

Environmental conditions (operating)

Life

Table 1-5

Confidential

C H A P T E R

2OP TING PRINCIPLESERA

AcuLaser C2800/C2800D/C3800/C3800D Revision C

O 31Confidential

2.Theleexc(abfou

Th

. Print Process OverviewPERATING PRINCIPLES Print Process Overview

1 Print Process Overviewis printer is a full-color laser printer that takes advantage of the principle of ctrophotographic recording. This printer uses a tandem-type engine that equips lusive drums and developer units for each yellow, magenta, cyan, and black breviated to Y, M, C, and K), and prints images in full color by laying images of r colors on paper that is transferred on the transfer belt.

e major steps of the print process are described below:

1) Charging: Charges the drum surface.

2) Exposure: Exposes the image areas on the drum using a laser beam.

3) Development: Develops the image areas on the drum with toner.

4) Transfer: Transfers complete full-color toner image on paper by laying images of four colors.

5) Cleaning: Cleans remaining toner and remove the electrical charge of the drum.

6) Discharging: Removes the electrical charge of the paper.

7) Fusing: Fixes toner on the paper by applying heat and pressure.

8) Cleaning: Removes remaining toner on the transfer belt.

Figure 2-1


O 32Confidential

2.ThPERATING PRINCIPLES Print Process Diagram

2 Print Process Diagrame diagram below illustrates the entire print process.

Figure 2-2. Print Process Diagram


O 33Confidential

2.

2.In theeac

ure 2-3. Charging

8

PERATING PRINCIPLES Technical Explanation of Print Process

3 Technical Explanation of Print Process

3.1 Chargingcharging process, BCR (Bias Charge Roll) applies a uniform negative potential to drum which rotates at a fixed speed. This process is performed simultaneously for h of the yellow, magenta, cyan and black colors.

BCR is a conductive roller and keeps contact with the drum to move together with it. HVPS supplies discharge voltages to the BCR, and then the BCR discharges negative DC voltage.

Drum surface is uniformly charged to a negative potential with DC bias voltage. The Drum surface is made of conductive material coated with a photosensitive material that becomes insulating in darkness and becomes conductive when it is subjected to light.

Cleaning Roll contacts the BCR and attracts toner.

Fig


O 34Confidential

2.In druper

rding to the print data (image data) sent from the m is output only when a pixel data (minute dot . On parts to be developed by toner, the laser diode

developed, the laser diode turns off. the laser beam becomes a conductor, the negative positive side, and the potential on the drum he section of the drum surface where the potential ostatic latent image.

ure 2-5. Exposure

-V

0PERATING PRINCIPLES Technical Explanation of Print Process

3.2 Exposureexposure process, a laser beam is applied to the negatively charged surface of the m to form an invisible electrostatic latent image onto the drum. This process is formed simultaneously for each of the yellow, magenta, cyan and black colors.

Laser beams for each color emitted from laser diodes in the ROS ASSY are directed by the rotating polygon mirror, fixed mirrors and lenses, which are attached to the Scanner Assy in the ROS ASSY to scan across each drum surface from side to side.

Figure 2-4. Laser Beam Paths

A laser beam is irradiated accoprinter controller. The laser beacomposing the print data) existsturns on, and on parts not to beThe drum surface irradiated bycharge on the drum flows to thesurface is reduced as a result. Thas reduced becomes the electr

Fig


O 35Confidential

2.In imsim

e 2-6. DevelopmentPERATING PRINCIPLES Technical Explanation of Print Process

3.3 Developmentdevelopment process, toner is electrically applied to the invisible electrostatic latent age on the drum to form a visible image on it. This process is performed ultaneously for each of the yellow, magenta, cyan and black colors.

Toner in the toner cartridge is stirred by Agitators, and is supplied to the Deve Assy. Auger is driven by the Sub Motor and the Deve Motor in the DRIVE ASSY MAIN. The amount of toner transferred to the Deve Assy is calculated based on the number of printed pages. This is called toner dispensation and is controlled by PCDC and ADC. (Refer to 2.7.3.2 Toner Density Control (p63) .)

Toner transferred to the Deve Assy and developer (toner and carrier) in the Deve Assy is stirred by the Augers, and are supplied to the Magnet Roll located near the drum surface. The toner and the carrier are charged by the triboelectricity (toner: negative, carrier: positive), and they are attracted to each other. As the carrier is a magnetic body, it is attracted to the magnetized Magnet Roll, and a uniform layer of carrier is formed on the Magnet Roll by passing through the Timmer Rod.

The surface of the Magnet Roll is covered with the conductive sleeve. The DB (Developing Bias) is supplied to the conductive sleeve from the HVPS. The DB voltage is a negative DC voltage that AC voltage is superimposed on it. The electrostatic latent image on the drum, the area hit by the laser, carries less negative charges than the other area on the drum. As the uniform negative charge on the Magnet Roll is kept at a certain level by the DC voltage, the potential difference between the Magnet Roll and the drum surface becomes as follows; the electrostatic image area is higher than the Magnet Roll, and the other area is lower than the Magnet Roll. The superimposed AC voltage vibrates the carrier on the Magnet Roll surface making it easier for toner to jump to the drum. Thus, the negatively charged toner on the Magnet Roll is only attracted to the electrostatic latent image and forms a toner image on the drum. Once the toner adheres to the image area on the drum, no more toner is attracted to the area as negative charges of the area are increased.

Figur


O 36Confidential

2.In To

ransfer (Drum Paper) (1)PERATING PRINCIPLES Technical Explanation of Print Process

3.4 Transfer (Drum Paper)transfer process, the toner images formed on the drums are transferred to a paper. ner image is transferred in the order Y, M, C, and K.

BTR BTR (Bias Transfer Roll) is a conductive roll and is supplied high positive voltage from the HVPS. The BTR contacts back side of the Transfer Belt and applies positive voltage to the belt.

Transfer Belt Transfer Belt is a conductive belt that is charged positively with the BTR. Negatively-charged toner image on the drum surface jumps to the positively- charged Transfer Belt and the image is formed on the paper. The Transfer Belt then carries the paper to the FUSER UNIT.

Roll ESA (Electric Static Attachment) Roll ESA is a conductive roller that receives positive voltage from HVPS and discharge the voltage to a paper to improve efficiency of the toner transfer.

Figure 2-7. T


O 37Confidential

artridge), remaining toner on the Drum and the BCR as

m are removed.

m surface and scrape off remaining toner. ollecting section for waste toner.

sponge, contacts the BCR surface and scrape off the llected into the collecting section for waste toner.

the Drum, the Drum surface cannot be charged ss when the Drum is charged by the BCR, and may lectrical remanence on the Drum is removed by

se Lamp (LED ASSY) to the Drum surface.

leaning (Toner Cartridge)PERATING PRINCIPLES Technical Explanation of Print Process

Figure 2-8. Transfer (Drum Paper) (2)

2.3.5 Cleaning (Toner CIn cleaning (toner cartridge) processwell as electrical charge on the Dru

Drum cleaning Cleaning blade contacts the DruThe toner is collected into the c

BCR cleaning Cleaning Roll, which is made ofremaining toner. The toner is co

Charge cleaning If electrical charge remains on uniformly in the charging procecause print quality deficiency. Eexposing the light from the Era

Figure 2-9. C


O 38Confidential

2.In

e 2-10. DischargingPERATING PRINCIPLES Technical Explanation of Print Process

3.6 Dischargingdischarging process, the charge on the paper is neutralized/removed by the Detack Saw.

Detack Saw Detack Saw neutralizes/removes electrical charge of the paper so that toner transferred on the paper will not scatter over the surrounding metal parts. Detack Saw is a metal sheet that is kept at ground level, and placed a few millimeter away from the back side of the Transfer Belt. Detack Saw neutralizes the electrical charge through the Transfer Belt.

Figur


O 39Confidential

2.In

r Belt)emaining toner on the Transfer Belt is removed.PERATING PRINCIPLES Technical Explanation of Print Process

3.7 Fusingfusing process, toner is fixed on paper by applying heat and pressure.

As a complete toner image clings to a paper only by the electrostatic force, one light touch can remove the image easily. To fix the image onto a paper firmly, the paper is transferred to the FUSER UNIT. The toner is melted by the Heat Roll heated by the Heater Lamp, and then the toner is fixed on the paper by being pressed between the Heat Roll and the Belt Assy.

Figure 2-11. Fusing

2.3.8 Cleaning (TransfeIn cleaning (transfer belt) process, r


O 40Confidential

2.

2.

ayout

. Paper Feed Path LayoutPERATING PRINCIPLES Paper Feed

4 Paper Feed

4.1 Paper Feed Path

Figure 2-12. Paper Feed Flow

2.4.2 Paper Feed Path L

Figure 2-13

MSI

ROLL ASSY FEED MSI

ROLL ASSY RETARD

ROLL ASSY TURN

Pinch Roll

ROLL REGI RUBBER

ROLL REGI METAL

ROLL ASSY FEED(Nuger Roll)

ROLL ASSY FEED(Feed Roll)

ROLL ASSY FEED(Retard Roll)

ROLL ASSY FEED(Nuger Roll)

ROLL ASSY FEED(Feed Roll)

ROLL ASSY FEED(Retard Roll)

FUSER ASSY (Heat Roll)

FUSER ASSY (Pressure Belt)

FUSER ASSY (Exit Roll)

TRANSFER UNIT (Transfer Belt)

ROLL ASSY DUP-1

Pinch Roll

ROLL ASSY DUP-2

Pinch Roll

Kmy06019EB

550 Paper Feeder 550 Paper Feeder

Multi-feedPrevention



Leading Edge Registration

Paper Eject

(Option)


O 41Confidential

2.ThTh

ns

es crossways of the paper feed direction, and paper.

s parallel to the paper feed direction, and CH ASSY SIZE turns on/off depending on T END (2.7.1 Paper Size Control (p60)), and

nd ROLL ASSY FEED (Feed Roll) nip a

of the main unit when the paper cassette is

en the paper cassette is installed. Bottom plate ll by spring pressure.

. Paper CassettePERATING PRINCIPLES Main Structures and Functions

5 Main Structures and Functionsis section explains and illustrates the main functional components. e explanations are given for each of the components (section) listed below:

Paper Cassette

Paper Feeder

MSI & Regi Assy

Transfer Belt & Fuser

ROS ASSY

Xerographics

Drive

Electrical

Duplex

550 Paper Feeder

2.5.1 Paper Cassette2.5.1.1 Part Names and Functio GUIDE ASSY SIDE (R/L)

The GUIDE ASSY SIDE (R/L) movtrues up the left and right edges of a

GUIDE ASSY CST END The GUIDE ASSY CST END movedetermines the paper size. The SWITthe position of the GUIDE ASSY CSdetects the paper size.

ROLL ASSY FEED (Retard Roll) ROLL ASSY FEED (Retard Roll) apaper to prevent multi-feeding.

PLATE ASSY BTM (Bottom Plate)Bottom Plate is locked to the bottomremoved, and its lock is released whpresses paper against the Nudger Ro

Figure 2-14


O 42Confidential

2.5SomuReconsepto Retor

tionEWAY is released when a paper cassette is

til it stops, gears of RACK BTM LOCK and disengaged and PLATE ASSY BTM rises up by P.

. Bottom Plate OperationPERATING PRINCIPLES Main Structures and Functions

.1.2 Multi-Feed Preventionme papers are stuck together in the paper cassette and these papers tend to cause lti-feeding or paper jams. Nudger Roll transfers paper in between Feed Roll and tard Roll. When a sheet of paper is transferred, Feed Roll and Retard Roll rotate to tinue transferring papers. If two or more papers are transferred, Retard Roll arates the lower paper by friction, Retard Roll stops rotating, and Feed Roll rotates

transfer the upper paper. tard Roll is pressed against Feed Roll by spring pressure, and is controlled by the que limiter (CLUTCH FRICTION RET) that is connected to the Retard Roll.

Figure 2-15. Multi-Feed Prevention (Paper Cassette)

2.5.1.3 Bottom Plate OperaThe lock of GEAR BTM LOCK ONinserted to the main unit. When a paper cassette is inserted unGEAR BTM LOCK ONEWAY arespring pressure of SPRING BTM U

Figure 2-16


O 43Confidential

2.

2.5

2-17. Paper Feeder

Kmy06027EBPERATING PRINCIPLES Main Structures and Functions

5.2 Paper Feeder

.2.1 Part Names and FunctionsSWITCH ASSY SIZE Detects paper size and the presence of the paper tray. (Refer to 2.7.1 Paper Size Control (p60) .)

SENSOR PHOTO (CST No Paper Sensor) Detects presence of papers in the paper tray according to the change in position of the Actuator No Paper. (When there is no paper, the sensor receives the light.)

CLUTCH ASSY PH FEED Transmits the drive from DRIVE ASSY PH to ROLL ASSY FEED. (Refer to 2.8.3 DRIVE ASSY PH (p70) .)

ROLL ASSY FEED When CLUTCH ASSY PH FEED operates, ROLL ASSY FEED (Feed Roll and Nudger Roll) starts to rotate and transfers papers. (Refer to 2.8.3 DRIVE ASSY PH (p70) .)

Figure


O 44Confidential

2.

2.5

-18. MSI & Regi AssyPERATING PRINCIPLES Main Structures and Functions

5.3 MSI & Regi Assy

.3.1 Part Names and FunctionsSOLENOID FEED MSI Controls the drive from DRIVE ASSY PH to ROLL ASSY FEED MSI. (Refer to 2.8.3 DRIVE ASSY PH (p70) .)

CLUTCH ASSY PH TURN Transmits the drive from DRIVE ASSY PH to ROLL ASSY TURN.

ROLL ASSY TURN ROLL ASSY TURN is rotated by DRIVE ASSY PH via CLUTCH ASSY PH TURN, and transfers papers from MSI and Duplex paper path to CHUTE ASSY REGI. (Refer to 2.8.3 DRIVE ASSY PH (p70) .)

SENSOR PHOTO (Regi Sensor) This sensor detects that the leading edge of the paper has reached the CHUTE ASSY REGI. Measures the length of paper (paper size) when the paper is fed from MSI. The length that Regi Sensor is turned on is converted to the paper length. When paper is present, the actuator turns on.

CLUTCH ASSY PH REGI CLUTCH ASSY PH REGI transmits the drive from DRIVE ASSY MAIN to ROLL REGI RUBBER, and transfers papers from paper tray, MSI, and Duplex paper path toward the toner cartridges. (Refer to 2.8.3 DRIVE ASSY PH (p70) .) The timing that Regi Assy transfers paper is adjusted based on the operation time of CLUTCH ASSY REGI so that toner image on the drum is transferred to the appropriate position on paper.

SENSOR PHOTO (MSI No Paper Sensor) Detects presence of paper in MSI according to the position of the actuator.

PWBA OHP LED/PWBA OHP SNR PWBA OHP LED and PWBA OHP SNR are located in the registration section. PWBA OHP LED emits light when paper passes, and PWBA OHP SNR receives the light. When plain paper passes, PWBA OHP SNR cannot receive the light, on the other hand, it receives the light when transparency passes the path. Thus the printer detects transparency. PWBA OHP SNR also detects temperature inside the printer.

Figure 2


O 45Confidential

2.5WhPap

onI and these papers tend to cause multi-feeding or

transferred, ROLL ASSY FEED MSI and ROLL ansferring papers. If two or more papers are separates the lower paper by friction, ROLL ASSY ASSY FEED MSI rotates to transfer the upper paper. ainst ROLL ASSY FEED MSI by spring pressure,

r that is connected to the ROLL ASSY RETARD.

ulti-Feed Prevention (MSI)PERATING PRINCIPLES Main Structures and Functions

.3.2 MSI Paper Detectionen papers are loaded in MSI, ACTUATOR NO PAPER shields the light to MSI No er Sensor, and detects paper presence.

Figure 2-19. Paper Detection (MSI)

2.5.3.3 Multi-Feed PreventiSome papers are stick together in MSpaper jams. When a sheet of paper isASSY RETARD rotate to continue trtransferred, ROLL ASSY RETARD RETARD stops rotating, and ROLL ROLL ASSY RETARD is pressed agand is controlled by the torque limite

Figure 2-20. M


O 46Confidential

2.5If pskepappapPaplea

etectionlex to Regi Sensor and the one from paper tray to sor has both Actuator A and Actuator B.

SI or Duplex. aper tray. onization with Actuator A.

egi Sensor Paper DetectionPERATING PRINCIPLES Main Structures and Functions

.3.4 Paper Edge Alignmentapers, which are transferred from MSI or paper tray to the toner transfer section, are wed, toner image on the drum cannot be transferred to the appropriate position on er. To prevent the skew, Regi section aligns paper edge before transferring the er to the toner transfer section. er fed from MSI or paper tray is pressed against ROLL REGI (not rotating) and

ding edge of the paper is aligned.

Figure 2-21. Paper Edge Alignment

2.5.3.5 Regi Sensor Paper DAs the paper path from MSI or DupRegi Sensor are different, Regi SenActuator A detects paper fed from MActuator B detects paper fed from pActuator B does not move in synchr

Figure 2-22. R


O 47Confidential

2.

2.5

3. Transfer Belt & FuserPERATING PRINCIPLES Main Structures and Functions

5.4 Transfer Belt & Fuser

.4.1 Part Names and FunctionsFUSER UNIT The FUSER UNIT fixes the unsteady toner on paper by heat and pressure, and also transfers the paper before and after the fixing. The FUSER UNIT mainly consists of the components shown below:

Exit Sensor Detects the current position of the fixed paper based on the changes in position of the Actuator.

Thermostat Interrupts the Heater Lamp circuit in the Heat Roll when temperature of the Heat Roll exceeds predetermined level.

Temp. Sensor (NCS: Non-contact temp sensor, STS: Soft touch sensor) NCS (non-contact): Monitors surface temperature of Heat Roll and turns

on/off Heater Lamp. STS (contact): Monitors surface temperature of Heat Roll and

interrupts the power supply to Heater Lamp when the temperature rises too high.

TRANSFER UNIT The TRANSFER UNIT mainly consists of the components shown below:

Figure 2-2

Heat Roll Pressure Belt Heater Lamp Exit Roll Thermostat Exit Sensor Temp. Sensor (NCS: Non-contact temp sensor, STS: Soft touch sensor)

When total number of printed pages exceeds preset value, FUSER UNIT needs to be replaced.

Transfer Belt ADC Sensor ADC Solenoid Roll ESA


O 48Confidential

2.5Th

TRANSFER UNIT DetailsPERATING PRINCIPLES Main Structures and Functions

.4.2 TRANSFER UNIT Detailse TRANSFER UNIT mainly consists of the components shown below:

Transfer Belt Transfer Belt transfers paper towards FUSER UNIT.

ADC Sensor ADC Sensor reads the toner patch on the Transfer Belt at the window position and converts the data to voltage value. The voltage value is used to control toner density.

ADC Solenoid Turning on ADC Solenoid activates PAD ADC and wipe off dirt on ADC Sensor. ADC Sensor turns on for a certain period of time and activates PAD ADC before reading toner patch.

Roll ESA (Electric Static Attachment) Roll ESA discharges positive voltage to paper. Discharging the voltage improves efficiency of the toner transfer.

Figure 2-24.


O 49Confidential

2.

2.5

of Scan) PWB converts input laser beam into f scanning. h the start timing of a laser scanning with that of

re 2-25. ROS AssyPERATING PRINCIPLES Main Structures and Functions

5.5 ROS ASSY

.5.1 Part Names and FunctionsROS ASSY ROS ASSY (Raster Output Scanner Assembly) is the exposure unit that outputs a laser beam to make a electrostatic latent image on the drum surface. In this manual, items concerning the ROS ASSY are simply called ROS. The ROS ASSY mainly consists of the components shown below.

LD PWB LD PWB consists of four Laser Diodes (LD) that correspond with Y, M, C, and K. LDs convert image data input as electrical signal into flashing of a laser beam. PWBA LD monitors the laser beam at all times so that the amount of laser beam that draws latent image remains stable. This control is called APC (Auto Power Control).

Scanner Assy Scanner Assy consists of a Scanner Motor that rotates at constant speed and a Polygon Mirror attached to the rotary shaft of the motor. Laser beam emitted from LD irradiates the Polygon Mirror via a mirror. Polygon Mirror has a six-sided reflecting mirror, and the Scanner Motor rotation changes an angle of reflection. This allows the laser to scan across on the drum from side to side. The laser can scan one horizontal line on the drum while it hits on the reflecting mirror.

Mirror/Window/Lens Laser beam reflected by Polygon Mirror irradiates the drum surface via Lens, Mirror, and Window. Lens is for correcting aberration, Mirror is for ensuring an optical path, and Window keeps foreign materials from entering inside ROS.

SOS PWB SOS Sensor on SOS (Startelectrical signal as a start oThis signal is used to matcimage drawing.

Figu

LD PWB LD (Laser Diode)

Scanner Assy Polygon Mirror

SOS PWB SOS Sensor Lens

Mirror Window


O 50Confidential

2.

2.5

IMAGING CARTRIDGE

2-27. XerographicsPERATING PRINCIPLES Main Structures and Functions

5.6 Xerographics

.6.1 Part Names and FunctionsCONNECTOR CRUM* (CRUM Sensor) As IMAGING CARTRIDGE is attached to CRUM Sensor, the sensor contacts CRUM in IMAGING CARTRIDGE and read/write the data concerning CRUM.

* : Customer Replaceable Unit Memory: stores information specific to the printer.

SENSOR PHOTO (Toner Cartridge SENSOR Y/M/C/K) Detects IMAGING CARTRIDGE presence.

DISPENSER ASSY (Dispense Motor) (Y/M/C/K) Dispense motor provides drive force to Agitator and Auger in IMAGING CARTRIDGE, and supplies toner to the development section inside IMAGING CARTRIDGE.

IMAGING CARTRIDGE (Y)/IMAGING CARTRIDGE (M)/IMAGING CARTRIDGE (C)/IMAGING CARTRIDGE (K) IMAGING CARTRIDGE consists of toner cartridge, development section, and drum.

LED ASSY (Erase Lamp) LED Assy consists of four Erase Lamps that corresponds with the drums (Y, M, C, and K). LED light irradiates the drum through the lens of IMAGING CARTRIDGE. LED light removes electrical charge on the drum surface.

Figure 2-26.

Figure


O 51Confidential

2.5PERATING PRINCIPLES Main Structures and Functions

.6.2 IMAGING CARTRIDGE Detection

Figure 2-28. IMAGING CARTRIDGE Detection

Table 2-1. Toner Cartridge Sensor Conditions

IMAGING CARTRIDGE not inserted

IMAGING CARTRIDGE inserted

Toner Cartridge Sensor Light blocked Light received


O 52Confidential

2.

2.5

gure 2-29. DrivePERATING PRINCIPLES Main Structures and Functions

5.7 Drive

.7.1 Part Names and FunctionsDRIVE ASSY MAIN Supplies the driving to the parts shown below and other parts. (Refer to 2.8.1 DRIVE ASSY MAIN (p66) .)

Main Motor

Sub Motor

Deve Motor

Clutch Assy Exit Provides drive force from Main Motor to Exit Roll in FUSER UNIT. Exit Clutch stops when performing duplex printing. Exit Roll is driven by Duplex Motor. (Refer to 2.8.1 DRIVE ASSY MAIN (p66) .) (Refer to 2.8.4 MOTOR ASSY DUP (p71) .)

DRIVE ASSY PH Supplies the driving to the parts shown below and other parts.

Fi

Drum (K) (included in IMAGING CARTRIDGE (K)) TRANSFER UNIT FUSER UNIT

Drum (Y) (included in IMAGING CARTRIDGE (Y)) Drum (M) (included in IMAGING CARTRIDGE (M)) Drum (C) (included in IMAGING CARTRIDGE (C)) Developer (K) (included in IMAGING CARTRIDGE (K))

Developer (Y) (included in IMAGING CARTRIDGE (Y)) Developer (M) (included in IMAGING CARTRIDGE (M)) Developer (C) (included in IMAGING CARTRIDGE (C))

Standard Cassette MSI Regi Assy


O 53Confidential

2.

2.5

ity inside the printer and converts the values to

ith LCD and LEDs, and operates the printer with

K upply to HVPS and motors immediately when

re 2-30. ElectricalPERATING PRINCIPLES Main Structures and Functions

5.8 Electrical

.8.1 Part Names and FunctionsFAN MAIN Prevents overheating inside the printer by exhausting/inhaling the ambient air.

SWITCH POWER Tuns on/off the AC power supply to the printer.

LVPS (Low Voltage Power Supply) There are two types of the LVPS; 100/120 V and 230 V. The LVPS not only provides AC voltage to the FUSER UNIT heater from the power source, but generates/supplies stable low DC voltage that is required for parts such as the logic circuit. The LVPS consists of the power circuit and the control circuit for the FUSER UNIT heater.

PWBA MCU Controls the print operations by communicating with the printer controller and analyzing the information from the sensors and switches. The main functions are as follows.

Communicates with the printer controller Receives information from the sensors and the switches Controls motors in DRIVE ASSY MAIN and DRIVE ASSY PH Allocates the low DC voltage output from the LVPS among each component Controls the ROS ASSYHVPS (High Voltage Power Supply) Supplies high voltage to TRANSFER UNIT and IMAGING CARTRIDGE so that the following parts can perform charging, developing, and initial transfer.

PWBA EEPROM Stores information specific to each printer.

BOARD ASSY, MAIN Print controller. BOARD ASSY, MAIN that is connected to PWBA MCU controls the whole system.

SENSOR HUM Detects temperature and humidvoltage value.

CONTROL PANEL Shows the printer conditions wthe buttons.

HARNESS ASSY INTERLOCInterrupts the +24VDC power sFront Cover is opened.

Figu

BCR BTR Developer ESA


O 54Confidential

2.5Prito

al print image and off the beam in accordance with the electrical ge data by ups and downs of voltage) to form a line entioned scanning, single-colored image (two-o obtain full-color image, two-dimensional dot

/ inch

nning lines / inch

t Resolution Calculation MethodPERATING PRINCIPLES Main Structures and Functions

.8.2 Data Flownt data (electric signals) from the Printer Controller follows the flow shown below form a print image.

Figure 2-31. Data Flow

Reference: Forming two-dimensionA laser beam scans while turning onsignal (Video signal: Expresses imaof dot image. By repeating above mdimensional dot image) is created. Timages for four colors are created.

Resolution is defined as follows:

Main scanning direction: dots

Sub scanning direction: sca

Figure 2-32. Prin


O 55Confidential

2.

2.5

ure 2-33. DuplexPERATING PRINCIPLES Main Structures and Functions

5.9 Duplex

.9.1 Part Names and FunctionsSENSOR PHOTO (DUP Jam Sensor) Detects that paper has been transferred to the duplex section.

CLUTCH DUP Transmits drive force from MOTOR ASSY DUP to Exit Roll in FUSER UNIT. Exit Roll counterrotates when the clutch is activated. (Refer to 2.8.4 MOTOR ASSY DUP (p71) .)

MOTOR ASSY DUP Supplies drive force to Lower Roll (ROLL ASSY DUP2), Upper Roll (ROLL ASSY DUP1), and Exit Roll in FUSER UNIT. (Refer to 2.8.4 MOTOR ASSY DUP (p71) .)

PWBA DUP Controls motor, sensor, and clutch.

FAN DUP Cools inside of the printer.

Fig


O 56Confidential

2.

2.5

er Cassette (550 Paper Feeder)PERATING PRINCIPLES Main Structures and Functions

5.10 550 Paper Feeder

.10.1 Part Names and Functions (Paper Cassette)GUIDE ASSY SIDE (R/L) The GUIDE ASSY SIDE (R/L) moves crossways of the paper feed direction, and trues up the left and right edges of sheets of paper.

GUIDE ASSY CST END The GUIDE ASSY CST END moves parallel to the paper feed direction, and determines the paper size. The SWITCH ASSY SIZE turns on/off depending on the position of the GUIDE ASSY CST END (2.7.1 Paper Size Control (p60)), and detects the paper size.

ROLL ASSY FEED (Retard Roll) ROLL ASSY FEED (Retard Roll) and ROLL ASSY FEED (Feed Roll) nip a paper to prevent multi-feeding.

PLATE ASSY BTM (Bottom Plate) Bottom Plate is locked to the bottom of the main unit when the paper cassette is removed, and its lock is released when the paper cassette is installed. Bottom plate presses paper against the Nudger Roll by spring pressure.

Figure 2-34. Pap


O 57Confidential

2.5SomuReconsepto Retor

ationEWAY is released when a paper cassette is

til it stops, gears of RACK BTM LOCK and disengaged and PLATE ASSY BTM rises up by P.

Plate Operation (550 Paper Feeder)PERATING PRINCIPLES Main Structures and Functions

.10.2 Multi-Feed Preventionme papers are stuck together in the paper cassette and these papers tend to cause lti-feeding or paper jams. Nudger Roll transfers paper in between Feed Roll and tard Roll. When a sheet of paper is transferred, Feed Roll and Retard Roll rotate to tinue transferring papers. If two or more papers are transferred, Retard Roll arates the lower paper by friction, Retard Roll stops rotating, and Feed Roll rotates

transfer the upper paper. tard Roll is pressed against Feed Roll by spring pressure, and is controlled by the que limiter (CLUTCH FRICTION RET) that is connected to the Retard Roll.

Figure 2-35. Multi-Feed Prevention (550 Paper Feeder)

2.5.10.3 Bottom Plate OperThe lock of GEAR BTM LOCK ONinserted to the main unit. When a paper cassette is inserted unGEAR BTM LOCK ONEWAY arespring pressure of SPRING BTM U

Figure 2-36. Bottom


O 58Confidential

2.5

Feeder (550 Paper Feeder)PERATING PRINCIPLES Main Structures and Functions

.10.4 Part Names and Functions (Feeder)SWITCH ASSY SIZE Detects paper size and the presence of the paper tray. (Refer to 2.7.1 Paper Size Control (p60) .)

SENSOR PHOTO (CST No Paper Sensor) Detects presence of papers in the paper cassette according to the change in position of the ACTUATOR NO PAPER. (No paper state: Shielding the sensor)

CLUTCH ASSY FEED OPT Transmits the drive from DRIVE ASSY OPTION FEEDER to ROLL ASSY FEED (PICK UP ASSY). (Refer to 2.8.5 DRIVE ASSY OPT FDR (p72) .)

ROLL ASSY FEED When CLUTCH ASSY PH FEED operates, ROLL ASSY FEED (Feed Roll and Nudger Roll) starts to rotate and transfers papers. (Refer to 2.8.5 DRIVE ASSY OPT FDR (p72) .)

CLUTCH ASSY TURN OPT Transmits drive force from DRIVE ASSY OPT FDR to ROLL ASSY TURN.

ROLL ASSY TURN ROLL ASSY TURN is rotated by DRIVE ASSY OPTION FEEDER via CLUTCH ASSY TURN, and transfers paper from paper cassette to printer.

DRIVE ASSY OPT FDR Drives rollers of 550 Paper Feeder. (Refer to 2.8.5 DRIVE ASSY OPT FDR (p72) .)

PWBA OPT FDR Controls motor, sensor, and clutch.

Figure 2-37.


O 59Confidential

2.

2.Th

is shown below:

Mode Transition Diagram

PERATING PRINCIPLES Mode

6 Mode

6.1 Operating Modese printer has the following six operating modes:

Wait Mode The printer is adjusting print image quality

Ready Mode The printer is ready to print

Printing Mode Printing is in progress

Error Mode The printer detected an error

epson aculaser c2800_3800 service manual

Documents