Iq7 Light Image Rap - Xerox Phaser 3635MFP Service Manual

IQ7 Light Image RAP

Use this RAP when the machine produces light images in all modes, as shown in
Ensure the IQ1 Image Quality Entry RAP
Figure 1 Light image
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.
NOTE: For solid print area specifications, refer to
Go to the relevant procedure:
• 3635 Checkout
• 3550 Checkout
3635 Checkout
Perform the following:
1. Ensure the machine software is at version 20.100.29.000 or above.
2. If the defect appears only in copy mode when using the DADF, check that the scanner
lock, PL 14.10 Item 22 is completely unlocked.
3. Ensure that the paper tray settings match the paper or media size in the trays.
4. Examine the print cartridge, PL 9.10 Item
ing material.
5. Perform the Shading Test procedure,
a. Install new components as necessary:
• CCD module, PL 14.10 Item
• CCD module cable, PL 14.10 Item
• Scanner assembly, PL 14.10 Item
Image Quality
IQ7
Figure
is performed, before starting this RAP.
IQS 1 Solid Area Density.
1. Ensure that it is free from all packing or seal-
GP 15 Shading Test. If the shading test fails:
8.
23.
26.
• Main PWB, PL 3.10 Item
b. Perform OF7 Main PWB Check
1.
6. Remove the LSU, PL 6.10 Item
necessary, install a new LSU,
7. Refer to Wiring Diagram
• Check the spring contacts between the HVPS
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,
8. Refer to Wiring Diagram 2. Check the wiring between CN5 on the
Main PWB.
9. Check the spring contact from the HVPS to the transfer roll,
clean the spring contact. Install new components as necessary,
10. Install new components as necessary:
• HVPS, PL 1.10 Item
• Print cartridge, PL 9.10 Item
3550 Checkout
Perform the following:
1. If the defect appears only in copy mode when using the DADF, check that the scanner
lock, PL 14.11 Item 24 is completely unlocked.
2. Ensure that the paper tray settings match the paper or media size in the trays.
3. Examine the print cartridge,
ing material.
4. Perform the Shading Test procedure,
a. Install new components as necessary:
• CCD module, PL 14.11 Item
• CCD module cable,
• Scanner assembly,
• Main PWB, PL 3.10 Item
b. Perform OF7 Main PWB Check
5. Remove the LSU, PL 6.10 Item
necessary, install a new LSU,
6. Refer to Wiring Diagram
• Check the spring contacts between the HVPS
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,
7. Refer to Wiring Diagram 2. Check the wiring between CN5 on the
Main PWB.
8. Check the spring contact from the HVPS to the transfer roll,
clean the spring contact. Install new components as necessary,
9. Install new components as necessary:
• HVPS, PL 1.10 Item
• Print cartridge, PL 9.10 Item
April 2010
3-12
6.
RAP.
1. Clean the LSU window using a clean, lint-free cloth. If
PL 6.10 Item 1.
2. Perform the following:
PL 1.10 Item 3
PL 1.10 Item 3.
HVPS
PL 9.10 Item
PL
3.
1.
PL 9.10 Item 1. Ensure that it is free from all packing or seal-
GP 15 Shading Test. If the shading test fails:
2.
PL 14.11 Item 5.
PL 14.11 Item 21.
6.
RAP.
1. Clean the LSU window using a clean, lint-free cloth. If
PL 6.10 Item 1.
2. Perform the following:
PL 1.10 Item 3
PL 1.10 Item 3.
HVPS
PL 9.10 Item
PL
3.
1.
Phaser 3635MFP/WorkCentre 3550
and the print cartridge
and CN31 on the
2. If necessary,
9.10.
and the print cartridge
and CN15 on the
2. If necessary,
9.10.