Xerox DocuPrint N2025, Руководство по обслуживанию

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02/2000
3-16 DocuPrint N2025/N2825
IQ RAP 6, IQ RAP 7
Initial Issue Image Quality Repair Analysis Procedures
Y N
Replace the Fuser Assembly (REP 5.1).
Replace the following, in order, until the defective component is found: BTR Assembly (REP
7.7), Paper Transport Assembly (REP 4.1).
IQ RAP 7 Vertical (Process) Streaks
Extraneous dark lines/bands in the process direction (in the direction of paper travel) (Figure
1).
Figure 1 Vertical Streaks
Initial Actions
• Check that the paper supply is dry and fresh.
• Inspect the printer paper path for items such as staples, paper clips and paper scraps.
• Check installation of the Print Cartridge.
• Check that the Print Cartridge ground contact points are clean.
• Check that the paper is within specifications.
• Inspect the paper path, between feed and exit, for contamination or obstructions.
Procedure
Enter Diagnostics and select Test Print. Scroll to Print Pattern and press Enter [4]. Run five test
prints. The test prints have vertical streaks.
Y
N
Exit diagnostics and enter the Menu Mode. Print a Config Sheet. The problem is still
present.
Y
N
The problem appears to be with the host computer or the cables. If the problems per-
sist, replace the System Controller PWB (REP 8.1).
Remove and reseat the System Controller PWB. If the problems persist, replace the Sys-
tem Controller PWB (REP 8.1).
Install a new Print Cartridge. Run a Test Print. The vertical streaks are gone.
Y
N
Inspect the laser beam path between the Laser Assembly and the Drum. The laser
beam path is free of obstructions.
A