Canon i860, i865 Service Manual
(Troubleshooting by Symptom - cont’d -)
Symptom
Solution
Remarks
Multiple sheets feed.
Replace the
- sheet feeder unit,
- photo paper tray, or
- paper feed cassette.
- sheet feeder unit,
- photo paper tray, or
- paper feed cassette.
Paper does not feed.
Remove foreign material, or replace the
- sheet feeder unit,
- photo paper tray, or
- paper feed cassette.
- sheet feeder unit,
- photo paper tray, or
- paper feed cassette.
Pape
r fee
d
p
ro
b
lems
Paper feeds at an angle.
Remove foreign material, adjust the paper guide, or
replace the
- sheet feeder unit,
- photo paper tray, or
- paper feed cassette.
replace the
- sheet feeder unit,
- photo paper tray, or
- paper feed cassette.
No printing, or no color ejected.
Replace the
- ink tank,
- print head
- ink tank,
- print head
*2
,
- logic board ass’y
*1
, or
- purge unit.
Printing is faint, or white lines
appear on printouts even after
print head cleaning.
Line(s) not included in the print
data appears on printouts.
appear on printouts even after
print head cleaning.
Line(s) not included in the print
data appears on printouts.
Remove and re-install the print head, or replace the
- ink tank,
- print head
- ink tank,
- print head
*2
,
- purge unit, or
- logic board ass’y
- logic board ass’y
*1
.
Paper gets smeared.
Feed several sheets of paper, or clean the paper path with
cotton swab or cloth.
cotton swab or cloth.
A part of a line is missing on
printouts.
printouts.
Replace the
- ink tank, or
- print head
- ink tank, or
- print head
*2
.
Color hue is incorrect. Replace
the
- ink tank, or
- print head
- print head
*2
, or
correct the media sensor.
Printing is incorrect.
Replace the logic board ass’y
*1
.
No ejection of black ink.
Replace the
- ink tank, or
- print head
- ink tank, or
- print head
*2
.
Un
satisfacto
satisfacto
ry
p
rin
t
qu
ality
ality
Graphic or text is enlarged on
printouts.
printouts.
When enlarged in the carriage movement direction, clean
grease or oil off the timing slit strip film, or replace the
- timing slit strip film,
- carriage unit, or
- logic board ass’y
grease or oil off the timing slit strip film, or replace the
- timing slit strip film,
- carriage unit, or
- logic board ass’y
*1
.
When enlarged in the paper feed direction, clean grease
or oil off the timing slit strip film, or replace the
- timing slit disk film,
- timing sensor unit, or
- logic board ass’y
or oil off the timing slit strip film, or replace the
- timing slit disk film,
- timing sensor unit, or
- logic board ass’y
*1
.
*1: Before replacement of the logic board ass’y, check the waste ink amount (by service test print or EEPROM
information print). If the waste ink amount is 7% or more, also replace the bottom case unit (QM2-0586) or
the 5-item set of the ink absorbers (QC1-2232/2233/2234/2235/2236) when replacing the logic board ass’y.
the 5-item set of the ink absorbers (QC1-2232/2233/2234/2235/2236) when replacing the logic board ass’y.
*2: Replace the print head only after the print head deep cleaning is performed 2 times, and when the problem
persists.
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