construction of an improved printing system
DESCRIPTION
Construction of an improved Printing System. Diploma Thesis Ing. Martin Vogler. Existing Equipment. 35 PC-Rooms with printing facilities 60000 users in current system Each printing facility consists of: Terminal model Digital VT420 Printer model HP LaserJet 4xxx N - PowerPoint PPT PresentationTRANSCRIPT
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Construction of an improvedPrinting System
Diploma Thesis
Ing. Martin Vogler
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March 2007 Diploma Thesis Ing. Martin Vogler
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Existing Equipment
• 35 PC-Rooms with printing facilities• 60000 users in current system• Each printing facility consists of:
– Terminal model Digital VT420
– Printer model HP LaserJet 4xxx N
– Terminalserverbox model Lantronix ETS4P
– Cardreader device model TST CopyBox
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Existing Printing Solution
• Limitations of the existing solution:– Very strict user and operating system
environment
– Very strict hardware pool
– Modification of the standard hardware necessary
– Expansive and inefficient maintenance
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Guideline for New Equipment
• Using of existing network and user administration infrastructure
• Using of existing hardware is preferable• Standalone PC should serve as the new
printing interface
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New Printing Solution
• Based on software• No modification of the printer model
necessary• Current operating system: Windows XP• Migration to other operating systems easily
possible• Program development with C#
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Programflow 1
• Start of printing• Click on desktop icon
– Read needed parameters from INI - file
– Build connection „printserver to printclient“
– Query all user files in spool directory
– Printing a form on the desktop
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Programflow 2
• Selection of printfile by user – Read printfile and calculate number of pages in
file– Build connection „printclientPC to printer“– Get number of total printed pages from printer– Send printfilestream to printer– Get number of printed pages– Generate signal for CopyBox– At the end of printing close all connections
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Programflow 3
• Error management– Error recovery sequence closes all connection
– Close program in a defined procedure
– Error message on desktop
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Improvements of the new solution
• Wide pool of printers • Reduces significantly the costs for a new
printing facility• Reduces significantly the overall effort for
maintenance• No a priori preferences for a specific printer
model
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• Acknowledgements – To the Staff of the FH for teaching
– To my colleagues at work for ideas
– For your attention