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

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02/2000
3-25 DocuPrint N2125
IQ RAP 16 , IQ RAP 17
Image Quality Repair Analysis Procedures Initial Issue
IQ RAP 16 Skips / Smears
A disturbance of the image which lengthens or shortens the image in the process direction. A
darkening across the process direction or a repeat of the image in the process direction (
Figure
1 ).
Figure 1 Skips / Smears
Initial Actions
• Check that the paper supply is dry and fresh.
• Check to ensure that the paper is within specification.
• Check the paper path for any obstructions or debris.
Procedure
Run a test print. The image has skips or smears.
Y
N
Problem Solved.
Check, clean, or replace as necessary in the following sequence:
•
Transport Chute Assembly ( REP 6.1 ).
• The Main Drive Gear components ( REP 8.2 ).
• The Fuser Assembly ( REP 6.2 ).
The defect still occurs.
Y
N
Problem Solved.
Replace the Print Cartridge ( PL 8.1 ).
IQ RAP 17 Unfused Image
The printed image is not fully fused to the paper. The image rubs off easily ( Figure 1 ).
Figure 1 Unfused Image
Initial Actions
• Check to ensure that the paper is within specification.
Procedure
Replace the paper with fresh, dry paper from an unopened ream. Run a test print. The prob-
lem is still present.
Y
N
Problem solved.
Refer to Nonvolatile Memory Setup Mode and check the Fuser setting. The NV code is set to
the factory default value.
Y
N
Set NV code to the factory default value. Run 25 test prints. The problem is still
present.
Y
N
Problem Solved.
Increase the fuser temperature by one increment.
The overall print density is within specification.
Y
N
Go to
IQ RAP 1
Open the Rear Cover. Remove the Fuser Assembly. Rotate the fuser idler gear manually and
inspect the Heat Roll. Open the fuser jam access cover. Rotate the fuser idler gear manually
and inspect the Pressure Roll. The Heat Roll and the Pressure Roll are free of scratches
and contamination.
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