02/2000
3-11
DocuPrint N2025/N2825
IQ RAP 1, IQ RAP 2
Image Quality Repair Analysis Procedures
Initial Issue
The BTR is intact and is free of contamination.
Y
N
Replace the BTR (REP 7.7).
Generate a Test Print and switch OFF the printer power halfway through the print
cycle. Carefully remove the Print Cartridge and inspect the toner image on the drum
just before the transfer area (BTR). The image on the drum is completely devel-
oped with sharp, black, easily read areas.
Y
N
Go to RAP 43.
Inspect the toner image on the drum immediately after the transfer area (BTR). The
toner image on the drum is transferred completely to the paper.
Y
N
Go to RAP 43.
Replace in order until the problem is solved: BTR Assembly (REP 7.7), Fuser
Assembly (REP 5.1), HVPS PWB (REP 8.2), Laser Assembly (REP 7.1), LVPS
Assembly (REP 8.6), Right Print Cartridge Guide (REP 7.2), Print Engine Controller
PWB (REP 8.5), Paper Transport Assembly (REP 4.1).
Problem Solved.
Problem Solved.
IQ RAP 2 Blank Prints
No visible image anywhere on the output print (Figure 1).
Figure 1 Blank 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.
•
Ensure the blank prints are not the result of multisheet feeds.
Procedure
Enter Diagnostics and select Test Print. Scroll to Print Pattern and press Enter [4]. Run five test
prints. The test prints are blank.
Y
N
Exit diagnostics and enter the Menu Mode. Print a Config Sheet. The prints are blank.
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. There is a normal image on the paper.
Y
N
Remove the Print Cartridge. Inspect the Metal Grounding Contact on the rear end of the
Right Print Cartridge Guide. The Metal Grounding Contact is intact and is free of con-
tamination.
Y
N
Reform or clean the Metal Grounding Contact, so it makes better contact with the
drum shaft, or replace the Right Print Cartridge Guide (REP 7.2).
A
B
C
A
B
Summary of Contents for DocuPrint N2025
Page 12: ...02 2000 1 2 DocuPrint N2025 N2825 Initial Issue Service Call Procedures...
Page 20: ...02 2000 2 2 DocuPrint N2025 N2825 Initial Issue Status Indicator Repair Analysis Procedures...
Page 86: ...02 2000 3 2 DocuPrint N2025 N2825 Initial Issue Image Quality Repair Analysis Procedures...
Page 114: ...02 2000 4 4 DocuPrint N2025 N2825 Introduction Initial Issue Repair Adjustment...
Page 120: ...02 2000 4 10 DocuPrint N2025 N2825 REP 1 8 REP 1 9 Initial Issue Repair Adjustment...
Page 128: ...02 2000 4 18 DocuPrint N2025 N2825 REP 2 10 REP 2 11 Initial Issue Repair Adjustment...
Page 134: ...02 2000 4 24 DocuPrint N2025 N2825 REP 3 7 Initial Issue Repair Adjustment...
Page 144: ...02 2000 4 34 DocuPrint N2025 N2825 REP 5 5 Initial Issue Repair Adjustment...
Page 152: ...02 2000 4 42 DocuPrint N2025 N2825 REP 7 6 REP 7 7 Initial Issue Repair Adjustment...
Page 160: ...02 2000 4 50 DocuPrint N2025 N2825 REP 8 9 Initial Issue Repair Adjustment...
Page 186: ...02 2000 4 76 DocuPrint N2025 N2825 REP 11 21 REP 11 22 Initial Issue Repair Adjustment...
Page 204: ...02 2000 4 94 DocuPrint N2025 N2825 REP 12 29 Initial Issue Repair Adjustment...
Page 206: ...02 2000 4 96 DocuPrint N2025 N2825 ADJ 1 1 Initial Issue Repair Adjustment...
Page 208: ...02 2000 5 2 DocuPrint N2025 N2825 Initial Issue Parts list...
Page 234: ...02 2000 6 2 DocuPrint N2025 N2825 Initial Issue General Procedures Information...
Page 236: ...02 2000 6 4 DocuPrint N2025 N2825 GP 1 1 Initial Issue General Procedures Information...
Page 274: ...02 2000 6 42 DocuPrint N2025 N2825 GP 3 5 Initial Issue General Procedures Information...
Page 282: ...02 2000 6 50 DocuPrint N2025 N2825 GP 4 8 Initial Issue General Procedures Information...
Page 324: ...02 2000 6 92 DocuPrint N2025 N2825 GP 5 23 Initial Issue General Procedures Information...
Page 326: ...02 2000 6 94 DocuPrint N2025 N2825 GP 6 1 GP 6 2 Initial Issue General Procedures Information...
Page 328: ...02 2000 6 96 DocuPrint N2025 N2825 GP 7 1 Initial Issue General Procedures Information...
Page 330: ...02 2000 6 98 DocuPrint N2025 N2825 GP 8 1 Initial Issue General Procedures Information...
Page 332: ...02 2000 7 2 DocuPrint N2025 N2825 Initial Issue Wiring Data...
Page 361: ...02 2000 7 31 DocuPrint N2025 N2825 Base Engine Wiring Data Initial Issue Figure 16 Figure 17...