Xerox PHASER 3635 Service Manual

3-12
Phaser 3635MFP
IQ8, IQ9
Draft 4
Image Quality
IQ8 Dark Image RAP
Use this RAP when the machine produces dark images in all modes.
Procedure
WARNING
Switch off the electricity to the machine. Disconnect the power cord from the customer
supply while performing tasks that do not need electricity. Electricity can cause death or
injury. Moving parts can cause injury.
Perform the following:
1. Ensure that the paper tray settings match the paper or media size in the trays.
2. Perform the Shading Test procedure, GP 15. If the shading test fails, install new compo-
nents as necessary:
• CCD module, PL 14.10 Item 8.
• CCD module cable, PL 14.10 Item 23.
• Scanner assembly, PL 14.10 Item 26.
3. Refer to Wiring Diagram 2. Perform the following:
• Check the spring contacts between the HVPS PL 1.10 Item 3 and the print cartridge
PL 9.10 Item 1. The spring contacts supply the voltages to the print cartridge. If nec-
essary, clean the spring contacts.
• If necessary, install a new HVPS, PL 1.10 Item 3.
4. Perform OF7 Main PWB Check RAP.
IQ9 Background RAP
Use this RAP when the printed sheets have a dark or spotted background, as shown in Figure
1.
Figure 1 Background
Procedure
WARNING
Switch off the electricity to the machine. Disconnect the power cord from the customer
supply while performing tasks that do not need electricity. Electricity can cause death or
injury. Moving parts can cause injury.
Perform the following:
1. Ensure that the paper tray settings match the paper or media size in the trays. Also,
ensure the media is within specification. Refer to GP 9 Paper and Media Specifications.
2. Ensure the machine is being operated in the correct environmental conditions. Refer to
GP 7 Machine Specifications.
3. Clean the xerographic drum, make 10 blank copies. If necessary, install a new print car-
tridge, PL 9.10 Item 1.
4. Check the transfer roll, PL 9.10 Item 2. Make sure the transfer roll is clean and moves up
and down smoothly. If necessary, install a new transfer roll, PL 9.10 Item 2.
5. Refer to Wiring Diagram 2. Perform the following:
• Check the spring contacts between the HVPS, PL 1.10 Item 3, and the print car-
tridge PL 9.10 Item 1. The spring contacts supply the voltages to the print cartridge.
If necessary, clean the spring contacts.
• Install a new HVPS, PL 1.10 Item 3.

Xerox PHASER 3635 Specifications

General

Brand	Xerox
Model	PHASER 3635
Category	All in One Printer
Language	English