The Copy Has Bleeding Toner (During Fixing) - Canon 1000 Service Manual

15

The copy has bleeding toner (during fixing).

The term bleeding toner refers to spreading of toner immediately following (in relation to feeding direction)
a high-density area of a copy.
Cause Step
Separation
charging wire,
Pre-fixing charg-
ing wire
Separation
charging assem-
bly, Pre-fixing
charging assem-
bly
Service mode
(ADJUST > HV-
SP)
Service mode
(ADJUST > HV-
OFST)
Toner (exces-
sive)
COPYRIGHT © 2001 CANON INC.
Feeding
direction
Checks
1 Clean the separation charging wire
and the pre-fixing charging wire. Is
the problem corrected?
2 Is leakage, poor contact, or wrong
charging wire height noted for the
separation charging assembly or the
pre-charging assembly?
3 Decrease the setting of 'SP-xx'
corresponding to the mode and
paper type using 'HV-SP' under
'ADJUST' in service mode. Is the
problem corrected?
For a description of SP-xx and
adjustments, see the descriptions
given for service mode.
4 Increase the setting of 'SP-OFST' for
'HV-OFT' under 'ADJUST' in service
mode. Is the problem corrected?
5 Check the latent image formation
system and the developing system.
Is there a fault?
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
High-density
area
Bleeding toner
Figure 7-313
Yes/No Action
YES End.
YES Remove the fault.
YES End.
YES End.
For the range of settings,
see the descriptions on
service mode.
YES Correct it.
NO Lower the copy density by
changing the F value.
7-83