Iq10 Ghost Images Rap - Xerox phaser 3635 Service Manual

IQ10 Ghost Images RAP

Use this RAP when the printed sheets have ghost images, as shown in Figure 1.
Figure 1 Ghost images
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.
WARNING
Do not touch the fuser while it is hot.
Perform the following:
1. Measure the distance between the image and the ghosted image. Refer to Table 1 to
determine the possible cause of the defect.
Table 1 Defect distance
Defect distance Roll
95mm (3.7 inches) Xerographic drum
38mm (1.5 inches) Charge roll
45mm (1.8 inches) Supply roll
47mm (1.9 inches) Transfer roll
89mm (3.5 inches) Heat roll
51mm (2 inches) Pressure roll 1
64mm (2.5 inches) Pressure roll 2
2. If the distance between the image and the defect matches the print cartridge, perform the
following:
Draft 4
Phaser 3635MFP
Component Parts List Ref.
Print cartridge PL 9.10 Item 1
Print cartridge PL 9.10 Item 1
Print cartridge PL 9.10 Item 1
Transfer roll PL 9.10 Item 2
Fuser assembly PL 10.15 Item 1
Fuser assembly PL 10.15 Item 2
Fuser assembly PL 10.15 Item 3
• Ensure that the paper tray settings match the paper or media size in the trays.
Ensure the media is within specification. Refer to GP 9 Paper and Media Specifica-
tions.
• Refer to Wiring Diagram 2. 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 volt-
ages to the print cartridge. If necessary, clean the spring contacts.
• If necessary, install a new print cartridge, PL 9.10 Item 1.
3. If the distance between the image and the defect matches the transfer roll perform the fol-
lowing:
• Check the transfer roll, PL 9.10 Item 2, clean as required. If the lifetime of the trans-
fer roll is greater than 70K sheets, install a new transfer roll, PL 9.10 Item 2.
4. If the distance between the image and the defect matches the heat roll or pressure rolls,
perform the following:
• Enter dC330 code 10-200 and 10-210. Ensure that the fuser is operating within the
correct temperature range. Refer to GP 7 Machine Specifications.
• Switch off the machine. Remove the fuser assembly. Check that the thermistor, PL
10.12 Item 16 is clean and in good contact with the fuser. Check the wiring to the
thermistor. Install new components as necessary, PL 10.10 to PL 10.15.
3-13
Image Quality
IQ10