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

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02/2000
3-23 DocuPrint N2125
IQ RAP 13 , IQ RAP 14
Image Quality Repair Analysis Procedures Initial Issue
• Check the Tray 2 Feed Rolls. Clean or replace if necessary.
• Check the Tray 2 Retard Pad/Retard Roll. Clean or replace if neces-
sary.
• Check the Tray 2 Nudger Roll. Clean or replace if necessary.
• Check the Tray 2 Transport Rolls. Check for obstructions or contami-
nation. Clean as necessary.
• Check the feed chute between Tray 2 and Tray 1. Check for obstruc-
tions or contamination. Clean as necessary.
• Check the Tray 1 Feed Rolls. Clean or replace if necessary.
• Check the Tray 1 Nudger Roll. Clean or replace if necessary.
• Check the Tray 1 Retard Roll. Clean or replace if necessary.
• Check the feed chute between Tray 1 and the Registration Rolls. Check for
obstructions or contamination. Clean as necessary.
• Check the MBF Feed Rolls. Clean or replace if necessary.
• Check the MBF Retard Pad. Clean or replace if necessary.
• Check the MBF Guide. Check for obstructions or contamination. Clean or
replace as necessary.
• Check the Registration Sensor. Check actuation and for obstructions or con-
tamination. Clean or replace as necessary.
• Check the Registration Sensor. Check actuation and for obstructions or contamina-
tion. Clean or replace as necessary.
• Check the Registration Rolls. Clean or replace if necessary.
• Check the BTR Roll and bearings. Clean or replace if necessary.
• Check the Print Cartridge. Replace if necessary.
• Check the Chute Transport Assembly. Check for obstructions or contamination.
Clean or replace as necessary.
• Check the Fuser Assembly. Check for worn parts or rolls. Check for obstructions or con-
tamination. Clean or replace as necessary.
• Check all rolls and drives in the Exit Assembly. Check for obstructions or contamination.
Clean or replace as necessary.
• Check the Duplex assembly. Check for worn parts or rolls. Check for obstructions or con-
tamination. Clean or replace as necessary.
• Check the chute between the Duplex Assembly and the Registration Rolls. Check for
worn parts or rolls. Check for obstructions or contamination. Clean or replace as neces-
sary.
IQ RAP 14 Damaged Print
The printed page comes out of the printer either wrinkled, creased, or torn ( Figure 1 ).
Figure 1 Damaged Print
Initial Actions
• Check that the paper supply is dry and fresh.
• Check that rollers and other components in the paper path are clean and unobstructed.
• Ensure that paper is within specification.
Procedure
Observe paper feed as you run a test print. The paper fed crooked.
Y
N
Replace paper with fresh, dry standard paper. Run a Test Print. The paper is still dam-
aged.
Y
N
Problem solved.
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.
Y
N
Clean or replace the Fuser Assembly (
REP 6.2 ).
Inspect the paper path between the feed tray and the exit tray for contamination or
obstructions. The paper path is free of obstructions.
Y
N
Remove obstructions or contamination from the paper path.
Inspect all of the rolls along the paper path, between the feed tray and the exit tray, for
contamination, wear or damage. The paper path rolls are free of contamination, wear,
or damage.
A B C D E
A
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