Canon iR1600 Series, Service Manual

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CHAPTER 13 TROUBLESHOOTING
COPYRIGHT© 2002 CANON INC. 2000 CANON iR1600/iR2000/iR1610/iR2010 SERIES REV.0 MAR. 2002
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3.3.21 The copy is blank.
Developing assembly
1) Is the developing assembly firmly locked against the photosensi-
tive drum? (Check to see if the rolls of the developing assembly
are in firm contact.)
NO: Mount the developing assembly correctly.
Laser shutter arm, Laser shutter
2) Are the laser shutter arm and the laser shutter operating nor-
mally? Are they damaged?
YES: Replace the faulty part.
High-voltage leaf spring
3) Is the connection between the contact of the high-voltage left
spring and the developing assembly normal?
NO: Clean the contacts. If the fault is not corrected or deformation/
damage is found, replace the faulty part. In the cassette of the
leaf spring of the developing assembly, replace the developing
assembly.
Drum unit
4) Try replacing the drum unit. Is the fault corrected?
YES: End.
Developing assembly
5) Try replacing the developing assembly. Is the fault corrected?
YES: End.
High-voltage leaf spring, DC controller PCB
6) Is the connection between the contact for the developing bias on
the DC controller PCB and the contact of the leaf spring for the
developing bias normal?
YES: Replace the DC controller PCB.
NO:
Clean the contact. If the problem is not corrected, or deforma-
tion/damage is found, replace the faulty part.