SM C5650 5750 5850 5950

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<p>No.01</p> <p>Oki Data CONFIDENTIAL</p> <p>5</p> <p>6</p> <p>C6150/C6050/C5950/ C5850/C5750/C5650 Maintenance Manual[Rev. 5]4 2BOM</p> <p>3</p> <p>Use for</p> <p>Certification Body</p> <p>Rev 2 3 4 5</p> <p>Date 2008-03-28 2008-10-07 2008-12-05 2009-01-09</p> <p>DCO No. SAC-0023 SAC-0059 SG2-0014 SG2-0021</p> <p>Contents Partical change Drawing Maintenance Addition of Warning, etc. Drawing Maintenance</p> <p>Design Kenji Sato Masahiro Nakabayashi Tomoyo Sugiyama Yoshinori Fujisawa</p> <p>Approval Shuichi Yamanaka Kenji Sato Yoshinori Fujisawa Yoshinori Fujisawa</p> <p>1</p> <p>Approval Design Naoki Sunaga Makoto Kitamura .....................................................................................................</p> <p>Name</p> <p>.....................................................................................................Date</p> <p>Check</p> <p>C6150/C6050/C5950/ C5850/C5750/C5650</p> <p>Maintenance ManualDrawing No.</p> <p>2007-08-23</p> <p>43827101TH</p> <p>1 251</p> <p>Oki Data CONFIDENTIAL</p> <p>Document Revision History Corrected items Rev.No. 1 2 3 Date No. 2007-08-23 2008-03-28 2008-10-07 116, 178, 185, 218 4 2008-12-05 50, 68, 69, Addition of Warning, etc. EP5 T. Sugiyama 83 Drawing maintenance EP5 Y. Fujisawa Page Description of change Issue Partical change Drawing maintenance Person in charge MDP12 N. Sunaga CSFD12 K. Sato CSFD12 K. Sato</p> <p>5</p> <p>2009-01-09</p> <p>43827101TH Rev.5</p> <p>2/</p> <p>Oki Data CONFIDENTIAL</p> <p>PREFACEThis manual explains the maintenance methods for the C6150/C6050/C5950/C5850/C5750/C5650. The manual has been prepared for use by the maintenance personnel. For operating methods of the C6150/C6050/C5950/C5850/C5750/C5650, refer to the corresponding user's manual.</p> <p>Note! The contents of this manual are subject to changes without prior notice. Despite that exhaustive efforts were made in preparing the manual to make it accurate, it still may contain errors. Oki Data will not hold itself liable for any damage that results or is claimed to have resulted from repair, adjustment, or modification of the printer conducted by the user using this manual. The parts employed in the printer are so delicate that they may be damaged if not treated properly. Oki Data strongly recommends that the maintenance of the printer be undertaken by Oki Data's registered maintenance personnel. Work after eliminating static electricity.</p> <p>43827101TH Rev.5</p> <p>3/</p> <p>Oki Data CONFIDENTIAL</p> <p>CONTENTS1. CONFIGURATION ............................................................................................... 81.1 System configuration ............................................................................................................. 8 1.2 Printer configuration ............................................................................................................. 10 1.3 Composition of optional items .............................................................................................. 12 1.4 Specifications ....................................................................................................................... 13 1.5 Interface specifications ........................................................................................................ 17 1.5.1 Parallel interface specifications ................................................................................ 17 1.5.1.1 Parallel Interface Overview ........................................................................ 17 1.5.1.2 Parallel Interface Connector and Cable ..................................................... 17 1.5.1.3 Parallel Interface Level ............................................................................... 17 1.5.1.4 Timing Chart ............................................................................................... 18 1.5.1.5 Parallel Interface Signal ............................................................................. 19 1.5.2 USB interface specifications (C6150/C6050/C5950/C5850/C5750/C5650) ............. 20 1.5.2.1 Outline of USB interface ............................................................................. 20 1.5.2.2 USB interface connectors and cables ........................................................ 20 1.5.2.3 USB interface signals ................................................................................. 20 1.5.3 Network interface specifications (C6150/C6050/C5950/C5850/C5750/C5650) ....... 21 1.5.3.1 Outline of network interface ........................................................................ 21 1.5.3.2 Network interface connectors and cables .................................................. 22 1.5.3.3 Network interface signals ........................................................................... 22</p> <p>2. EXPLANATION OF OPERATION ..................................................................... 232.1 Electrophotographic processing mechanism ....................................................................... 23 2.2 Printing process ................................................................................................................... 28</p> <p>3. INSTALLATION ................................................................................................. 383.1 Cautions, and do's and don'ts .............................................................................................. 38 3.2 Unpacking method ............................................................................................................... 40 3.3 Printer Installation Instructions ............................................................................................. 41 3.4 Listing of component units and accessories ........................................................................ 42 3.5 Assembling method ............................................................................................................. 43 3.5.1 Assembly of printer main body ................................................................................. 43 3.5.2 Connection of power cable ....................................................................................... 49 3.5.3 Installation of optional items ..................................................................................... 52 3.5.4 Confirmation of recognition of optional items ........................................................... 61 3.6 Menu Map print .................................................................................................................... 62 3.7 Connection methods ............................................................................................................ 64 3.8 Confirmation of paper used by the user ............................................................................... 67</p> <p>4. REPLACEMENT OF PARTS ............................................................................. 684.1 Precautions on the replacement of parts ............................................................................. 68 4.2 Part replacement methods ................................................................................................... 70 4.2.1 Left side cover .......................................................................................................... 70 4.2.2 Right side cover ........................................................................................................ 71</p> <p>43827101TH Rev.5</p> <p>4/</p> <p>Oki Data CONFIDENTIAL</p> <p>4.2.3 Face-Up Tray ............................................................................................................ 72 4.2.4 Rear cover ................................................................................................................ 73 4.2.5 LED Assy/LED Assy springs .................................................................................... 74 4.2.6 CU PCB .................................................................................................................... 75 4.2.7 Print engine controller PCB ...................................................................................... 77 4.2.8 Top cover assembly ................................................................................................. 79 4.2.9 Top cover .................................................................................................................. 80 4.2.10 Controller Panel Assy ............................................................................................... 81 4.2.11 Operator panel PCB/ Top Cover Handle .................................................................. 82 4.2.12 Low-Voltage Power Supply / Low-Voltage Fan / Hopping Motor / Fuser Motor ....... 83 4.2.13 Guide Eject Assy / Color Register Assy / Junction PCB ........................................... 85 4.2.14 Fan (Fuser)/ Belt Motor / High-Voltage Power Supply Board / Cover-Open Switch . 87 4.2.15 MPT Assy ................................................................................................................. 88 4.2.16 Feeder Unit / Front sensor PCB/ MPT Hopping Roller / Frame Assy Separator / Cover Front ............................................................................................................... 89 4.2.17 Toner sensor PCB Lift-Up Motor/Solenoid/Paper-End Sensor ................................. 90 4.2.18 Feed Roller ............................................................................................................... 92 4.2.19 Shaft Eject Assy(FU) / Shaft Eject Assy(FD) / Eject Sensor .................................... 93 4.2.20 Fuser Unit ................................................................................................................. 94 4.2.21 Belt Unit .................................................................................................................... 95 4.3 Lubricating points ................................................................................................................. 96</p> <p>5. MAINTENANCE MENUS ................................................................................. 1145.1 System maintenance menu (For maintenance personnel) ................................................ 114 5.2 Maintenance utility ............................................................................................................. 117 5.3 Functions of user's maintenance menu ............................................................................. 121 5.3.1 Maintenance menu (For end users) ....................................................................... 121 5.3.2 Self-diagnostic mode .............................................................................................. 123 5.3.2.1 Operator panel ......................................................................................... 123 5.3.2.2 Normal self-diagnostic mode (Level 1) ..................................................... 126 5.3.2.2.1 Activation method for self-diagnostic mode (Level 1) .............. 127 5.3.2.2.2 Deactivation of self-diagnostic mode ....................................... 127 5.3.2.3 Switch scan test ....................................................................................... 127 5.3.2.4 Motor clutch test ....................................................................................... 130 5.3.2.5 Test print .................................................................................................. 132 5.3.2.6 Color registration adjustment test ............................................................. 137 5.3.2.7 Print density adjustment test .................................................................... 138 5.3.2.8 Indication of consumable part counters .................................................... 140 5.3.2.9 Indication of printed page counters .......................................................... 141 5.3.2.10 Factory/Shipping switching ....................................................................... 141 5.3.2.11 Setup of self-diagnostic function .............................................................. 142 5.3.2.12 Indication of LED head serial number ...................................................... 143 5.3.2.13 Details of panel indications ....................................................................... 144 5.3.3 Various types of print on the individual printer equipped with controller ................. 155 5.3.4 Functions of keys when depressed at power-on .................................................... 15543827101TH Rev.5</p> <p>5/</p> <p>Oki Data CONFIDENTIAL</p> <p>5.4 Setup after replacement of parts ....................................................................................... 156 5.4.1 Precautions on the replacement of engine control PCB ......................................... 156 5.4.2 Setup of EEPROM after replacement of CU PCB .................................................. 159 5.4.2.1 Replacement of EEPROM after replacement of PDL CU PCB (C6150/C6050/C5950/C5750).................................................................. 159 5.4.2.2 Setup of CU Serial Number ...................................................................... 159 5.4.3 Setup of destination [Checking method: Menu Map Print (C6150/C6050/C5950/ C5850/C5750/C5650)] ............................................................................................ 160 5.5 About the manual setup of Print density adjustment ......................................................... 161</p> <p>6. PERIODICAL MAINTENANCE ....................................................................... 1626.1 Recommended replacement parts ..................................................................................... 162 6.2 Cleaning ............................................................................................................................. 162 6.3 Cleaning of LED lens array ................................................................................................ 162 6.4 Cleaning of pickup rollers .................................................................................................. 164 6.5 Internal cleaning of printer ................................................................................................. 165 Cleaning the interior of the printer. .................................................................................... 165</p> <p>7. TROUBLESHOOTING PROCEDURES .......................................................... 1677.1 Precautions prior to repair ................................................................................................. 167 7.2 Items to be checked prior to taking action on abnormal images ........................................ 167 7.3 Precautions when taking action on abnormal images ....................................................... 167 7.4 Preparations for troubleshooting ........................................................................................ 167 7.5 Troubleshooting method .........................................</p>