Iq17 Periodic Printing Defects Check Rap - Xerox Phaser 3635MFP Service Manual

4. Install new components as necessary.
5. Check the condition of the fuser assembly. Install new components as necessary, PL
10.10 to PL 10.15.
6. Perform OF7 Main PWB Check RAP.
Draft 4
Phaser 3635MFP

IQ17 Periodic Printing Defects Check RAP

Use this RAP when the printed image shows regular defects in black or white, across the pro-
cess direction.
Procedure
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.
1. Clean the xerographic drum, make 10 blank copies. If necessary, install a new print car-
tridge, PL 9.10 Item 1.
2. Measure the distance between the repeated black or white abnormality. Refer to Table 1
identify the possible cause.
Table 1 Defect distance
Defect Kind of abnormal
distance image
95mm White spot. Black spot
(3.7 inches)
38mm White spot. Black spot
(1.5 inches)
45mm Horizontal dark band
(1.8 inches)
47mm Black spot, White spot
(1.9 inches)
89mm Black spot, White spot
(3.5 inches)
51mm Back side contamination Pressure roll 1
(2 inches)
64mm Back side contamination Pressure roll 2
(2,5 inches)
3. Install new components as necessary.
4. If the defect appears to be fuser related, 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.
3-17
WARNING
Roll Component Parts List Ref.
Xerographic drum Print cartridge PL 9.10 Item 1
Charge roll Print cartridge PL 9.10 Item 1
Supply roll Print cartridge PL 9.10 Item 1
Transfer roll Transfer roll PL 9.10 Item 2
Heat roll Fuser assembly PL 10.15 Item 1
Fuser assembly PL 10.15 Item 2
Fuser assembly PL 10.15 Item 3
Image Quality
IQ16, IQ17