Canon Image Reader-A1, Service Manual

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COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR5000i/iR6000i REV.0 JUNE 2001
CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
4-53 T
5.1.1 Pickup assembly
Pickup assembly
1) Is the print paper curled or wavy?
YES: Replace the paper. Advise the user on the correct method of storing
paper.
2) Try paper of a recommended type. Is the problem corrected?
YES: Advise the user to use recommended paper.
DC controller PCB, Pickup clutch
DC controller PCB, Pickup clutch
3) Are the pickup roller of the selected cassette or the deck and the
feeding roller of the manual feed tray rotating during printing?
NO: See "Pickup fails" for each source of paper.
Pickup roller
4) Is the pickup roller deformed or worn?
YES: Replace the pickup roller.
Guide plate
NO: Check the guide plate for deformation.
5.1.2 Separation/Feeding assembly
Print paper
1) Is the leading edge of print paper past the registration roller?
YES: Go to step 5.
NO:
Check the distance between the upper and lower guides in front of
the registration roller; then, make adjustments as needed.
Registration roller
2) Is the coupling of the registration roller engaged correctly?
NO: Mount the fixing/feeding unit correctly.
3) Is the registration roller deformed (worn) or soiled?
YES: If dirt is found, clean it with alcohol; if deformation (i.e., wear) is
found, replace it.
4) Are the retaining springs on both ends of the registration roller
mounted correctly?
NO: Mount them correctly.
YES: Check the transfer guide for foreign matte and deformation.
Registration clutch
5) Is the operation of the registration clutch normal?
NO: Check the registration clutch.