Xerox N2125N - DocuPrint B/W Laser Printer, Service Manual

Page: 84 / 335

02/2000
3-11 DocuPrint N2125
Other Print Defects, IQ RAP 1
Image Quality Repair Analysis Procedures Initial Issue
Other Print Defects
Procedure
Inspect the Test Patterns for other Print Defects. Test Prints are free of defects.
Y
N
There are dark streaks present on the Test Prints.
Y
N
There is a residual image (ghosts) on the Test Prints.
Y
N
There is paper damage: wrinkles, creases, tears, etc.
Y
N
The printer meets specifications. Go to Initial Actions
Go to IQ RAP 14 Damaged Prints.
Go to IQ RAP 9 Residual Image.
Go to IQ RAP 7 / IQ RAP 8 Streaks.
Go to Final Actions
IQ RAP 1 Light (Undertoned) Prints
The overall image density is too light ( Figure 1 ).
Figure 1 Light Prints
Initial Actions
• 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.
• Ensure there are no obstructions in the Laser path.
Procedure
Load fresh, dry paper. Run a test print. The image density meets specifications.
Y
N
Install a new Print Cartridge. Run a test print. The image density meets specifications.
Y
N
Remove the Print Cartridge. Inspect the Metal Grounding Contacts on the Print Car-
tridge Side Guide. The Metal Grounding Contacts are intact and free of contam-
ination.
Y
N
Reform or clean the Metal Grounding Contacts, so they make better contact
with the drum shaft, or replace the Print Cartridge Side Guide (
REP 7.5 ).
Check for the continuity between the Metal Grounding Contacts and the printer body
frame. There is continuity between the Metal Grounding Contacts and the
printer frame.
Y
N
Replace the Print Cartridge Side Guide (
REP 7.5 ).
Inspect Laser beam path between the Laser Assembly and the Drum for obstruc-
tions. The laser beam path is free of obstructions.
A B
manuals4you.com manuals4you.com