Canon CLC 1120, Service Manual

Page: 670 / 901

COPYRIGHT © 1999 CANON INC. CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
13-143
CHAPTER 13 TROUBLESHOOTING
Cause
Service mode
(COPIER>
ADJUST>MISC>
ATT-RTN)
Service mode
(COPIER>
ADJUST>HV-
ATT; attraction
high-voltage
output adjustment
mode)
Service mode
(COPIER>
ADJUST>HV-
ATT; attraction
high-voltage
output adjustment
mode)
Attraction high-
voltage system,
internal/external
static eliminator
high-voltage
system
Action
Set COPIER>ADJUST>
MISC>ATT-RTN1 and
RTN2 to '1' in service
mode.
End.
Settings: -5 to +5
Unit:
2 µA
Check the attraction
high-voltage system and
the internal/external
static eliminator high-
voltage system.
End.
Settings: -5 to +5
Unit:
2 µA
Check the attraction
high-voltage system and
the internal/external
static eliminator high-
voltage system.
Step
14
15
16
Yes/No
YES
YES
NO
YES
NO
Checks
Does the problem occur in single-
sided copying mode or when
copying on the first side of a
double-sided copy and also when
copying on both sides of a double-
sided copy?
Increase the setting of
COPIER>ADJUST>HAV-
ATT>ATT-N1 or ATT-N2. Is the
problem corrected?
ATT-N2: if the problem occurs in
plain paper mode and, in addition,
in single-sided copying mode or
when copying on the 1st side of a
double-sided copy
ATT-N2: if the problem occurs
when copying on the 2nd side of a
double-sided copy.
Increase the setting of ATT-xx
shown below according to the type
of paper for which the problem
occurs. Is the problem corrected?
ATT-T1
ATT-T2
ATT-OHP
ATT-S1
ATT-S2
thick paper; in
single-sided
copying mode or
when copying on
the 1st side of a
double-sided copy
thick paper; when
copying on the
2nd side of a
double-sided copy
when copying on a
transparency
when copying on
special paper 1
when copying on
special paper 2
Note: For steps 12 through 14, be sure to advise the user that the copier's productivity will decrease.