July, 2007
3-9
WorkCentre 5020
IQ13, IQ14
Image Quality
Initial Issue
IQ13 Spots RAP
Toner spots and blank areas are spread irregularly over the whole page.
Procedure
Check for dirt on the Platen Glass. The Platen Glass is clean.
YN
Remove any dirt on the Platen. If you can’t remove the dirt, replace the IIT Upper Cover
(PL 10.2) (REP 10.2.1).
Remove the Drum Cartridge (PL 4.1) (REP 4.1.1) and reinstall it properly. Turn the power OFF
then ON and make a print.
The problem recurs.
YN
Completed
Install a new Drum Cartridge (PL 4.1) (REP 4.1.1). Turn the power OFF then ON and make a
print.
The problem recurs.
YN
Completed
Check the Transfer Corotron (PL 4.3) (REP 4.3.1). The Transfer Corotron is clean and not
damaged.
YN
Clean the Transfer Corotron (PL 4.3) (REP 4.3.1). If it is damaged, replace it.
Check for dirt in the paper transport path. The paper transport path is clean.
YN
Clean away the dirt.
Remove the Fuser (PL 5.1) (REP 5.1.1) and check the surface of the Heat Roll. The surface
of the Heat Roll is clean.
YN
Clean away the dirt. If you can’t remove the dirt, replace the Fuser (PL 5.1) (REP 5.1.1).
Check the paper type. The paper used is within specifications.
YN
Use paper that is within specifications.
Use paper from a freshly opened packet. The problem recurs.
YN
Completed
Replace the AIOC PWB (PL 8.1) (REP 8.1.1).
IQ14 Black Prints RAP
The paper is printed completely black.
Procedure
Check the IIT Carriage for foreign substances and damaged parts. The carriage has no for-
eign substances or damaged parts.
YN
Remove any foreign substances. If any parts of the IIT Carriage Assembly (cable, cap-
stan, etc.) (PL 10.3) are damaged, replace them.
Remove the Drum Cartridge (PL 4.1) (REP 4.1.1) and reinstall it properly. Turn the power OFF
then ON and make a print.
The problem recurs.
YN
Completed
Install a new Drum Cartridge (PL 4.1) (REP 4.1.1). Turn the power OFF then ON and make a
print.
The problem recurs.
YN
Completed
Remove the HVPS (PL 8.2) (REP 8.2.1) and reinstall it properly. Turn the power OFF then ON
and make a print.
The problem recurs.
YN
Completed
Check the connectors of the HVPS (P/J520) and AIOC PWB (P/J406). The connectors are
connected securely.
YN
Connect the connectors securely.
Check the wire between J460-4 and J520-2. The wire between J460-4 and J520-2 is not
shorted or open.
YN
Repair the wire.
Check the wires between the ROS (PL 3.1) (REP 3.1.1) and the AIOC PWB (PL 8.1) (REP
8.1.1).
The wires between J140 (ROS) and J403 (AIOC PWB), as well as between J130
(ROS) and J403 (AIOC PCB), are not shorted or open.
YN
Repair the wire(s).
Replace the ROS (PL 3.1) (REP 3.1.1), followed by the HVPS (PL 8.2) (REP 8.2.1), and finally
the AIOC PWB (PL 8.1) (REP 8.1.1).
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