02/2000
3-21
DocuPrint N2125
IQ RAP 11 , IQ RAP 12
Image Quality Repair Analysis Procedures
Initial Issue
IQ RAP 11 Background
There is toner contamination on all or part of the page. The contamination appears as a very
light gray dusting (
).
Figure 1 Background
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 the machine covers are in place and fit well so no outside light can enter the
machine.
Procedure
Install a new Print Cartridge (
). Run a Test Print. The background is gone.
Y
N
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 undeveloped areas of the drum are clean and without
background.
Y
.
Clean or replace the Fuser Assembly (
). The background is gone.
Y
N
Replace the following, in order, until the defective component is found: HVPS PWB
(
), Fuser Assembly (
), Chute Transport Assembly (
), Laser
Assembly (
), Print Cartridge Side Guide (
), Print Engine Controller
PWB (
).
Problem solved.
Problem solved.
IQ RAP 12 Uneven Density
Image density varies within the page in either direction (
).
Figure 1 Uneven Density
Initial Actions
•
Load fresh dry paper.
•
Check that the correct Print Cartridge is properly installed and not empty.
•
Ensure that the machine is reasonably level.
•
Check to make sure the Laser path is clean and unobstructed.
•
Remove the Print Cartridge and check the Left and Right Guides for ware, contamination,
obstructions, etc.
•
Clean the Laser window.
Procedure
Run a Test Print. The Test Print output image contains uneven print.
Y
.
Install a new Print Cartridge (
). Run a Test Print. The Test Print output image con-
tains uneven print.
Y
N
Problem solved. Go to
.
Check the Bias Transfer Roll (BTR) for contamination, even spring pressure, and proper instal-
lation. The BTR is in good condition (not contaminated) and properly installed.
Y
N
Repair or replace the BTR Assembly (
).
Check the Fuser Assembly for worn parts and for contamination on the Fuser Roll or Pressure
Roll. The Fuser Assembly is in good condition.
manuals4you.com
manuals4you.com
Содержание N2125N - DocuPrint B/W Laser Printer
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Страница 21: ...02 2000 2 4 DocuPrint N2125 Introduction Measurements Initial Issue Status Indicator Repair Analysis Procedures...
Страница 27: ...02 2000 2 10 DocuPrint N2125 Error Code Tables Initial Issue Status Indicator Repair Analysis Procedures...
Страница 61: ...02 2000 2 44 DocuPrint N2125 RAP 50 RAP 51 Initial Issue Status Indicator Repair Analysis Procedures...
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Страница 75: ...02 2000 3 2 DocuPrint N2125 Initial Issue Image Quality Repair Analysis Procedures...
Страница 103: ...02 2000 4 4 DocuPrint N2125 Introduction Initial Issue Repair Adjustment...
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Страница 217: ...02 2000 5 2 DocuPrint N2125 Initial Issue Parts list...
Страница 241: ...02 2000 6 2 DocuPrint N2125 Initial Issue General Procedures Information...
Страница 243: ...02 2000 6 4 DocuPrint N2125 Introduction Initial Issue General Procedures Information...
Страница 263: ...02 2000 6 24 DocuPrint N2125 GP 2 11 Initial Issue General Procedures Information...
Страница 287: ...02 2000 6 48 DocuPrint N2125 GP 4 1 Initial Issue General Procedures Information manuals4you com manuals4you com...
Страница 289: ...02 2000 6 50 DocuPrint N2125 GP 4 1 Initial Issue General Procedures Information Figure 4 PCL Menu...
Страница 293: ...02 2000 6 54 DocuPrint N2125 GP 4 1 Initial Issue General Procedures Information Figure 9 Ethernet Menu...
Страница 295: ...02 2000 6 56 DocuPrint N2125 GP 4 1 Initial Issue General Procedures Information Figure 11 Novell Menu...
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Страница 301: ...02 2000 7 2 DocuPrint N2125 Initial Issue Wiring Data...
Страница 307: ...02 2000 7 8 DocuPrint N2125 Base Engine Initial Issue Wiring Data Figure 5 Block Diagram 2 of 2...