Canon PIXUS iP8600, Service Manual

Page: 28 / 38

4. FAQ (Problems Specific to the iP8500 and Corrective Actions)
No. * Function Phenomenon Condition Cause Corrective action
Possible call or
complaint
1 C Print results
Margin (approx.
0.3mm) - Paper feeding from the
cassette, Photo Paper Plus
Double Sided (A4),
borderless printing, printing
on the back side of paper
- In the low temperature and
low humidity environment
- In the printer driver,
increase the amount of
extension.
- Change the paper feeding
method from the cassette
to the auto sheet feeder.
- A margin appears on
printouts.
- Paper feeds at an
angle.
2 B Print results
- Skewed paper
feeding
- Printing on the
platen
- Plain paper
- In the high temperature and
high humidity environment
- If paper is curled,
straighten it.
- Try printing on the other
side of paper.
- Paper feeds at an
angle.
- Printing is performed
on the platen.
- The back side of
paper gets smeared.
3 B Print results
Variation in the top
of form accuracy - A5 or legal size
- In the low temperature and
low humidity environment
- Not solved even when the
number of sheets stacked in
the auto sheet feeder or the
cassette is reduced
Due to decrease of paper
feed capability in the low
temperature and low
humidity environment
- Set the top margin to 4mm
or more.
- Print start position
varies.
4 B Print results
- Skewed paper
feeding
- Margin
- Photo Paper Plus Double
Sided
- 2L size (Japan only)
- In the printer driver,
increase the amount of
extension.
- Change the paper feeding
method from the cassette
to the auto sheet feeder.
- A margin appears on
printouts.
- Paper feeds at an
angle.
5 A Print results
Soiling on the back
side of paper (lines
or streaks parallel to
the paper feed
direction)
- After continuous borderless
printing of small sized paper
(such as 4 x 6), when a
larger sized paper (such as
A4) is printed.
- With Photo Paper Plus
Double Sided or postcards,
the phenomenon is likely to
be noticeable and to be
complained of by users, as
printing is performed on
both sides of such paper.
In borderless printing,
printing is performed to the
size slightly larger than the
paper size, and ink off the
paper is absorbed by the
platen's ink absorber.
Absorbed ink may attach to
the platen rib(s) after
several dozen sheets are
printed, causing soiling at
the leading edge of paper
or on the back side of
paper.
1. Perform Bottom plate
cleaning (from the
printer driver) up to 3
times
*1 .
2. If soiling on the paper
still remains after 3
times of Bottom plate
cleaning, wipe the
platen rib(s) and their
surroundings with a
cotton swab.
- Paper gets smeared.
- The back side of
paper gets smeared.
6 B Print results
Soiling on paper in
automatic duplex
printing (lines or
streaks perpendicular
to the paper feed
direction)
- Automatic duplex printing
(Photo Paper Plus Double
Sided, postcards, plain
paper)
On the rib(s) inside the
sheet feed unit used for
duplex printing, ink mist
may accumulate, smearing
paper.
Temporary operational
solution:
Cancel automatic duplex
printing, and manually print
each side of paper.
Cleaning by user:
1. Perform Bottom plate
cleaning (from the
printer driver) up to 3
times
*1 .
2. If soiling on the paper
still remains after 3
times of Bottom plate
cleaning, wipe the
platen rib(s) and their
surroundings with a
cotton swab.
If the phenomenon persists
after conducting 1 and 2,
servicing is required.
Service:
Wipe any soiling or dirt off
from the sheet feed unit and
the bottom case unit ribs
*2 .
- Paper gets smeared.
- The back side of
paper gets smeared.
- Even after Bottom
plate cleaning was
performed, and the
platen ribs were
cleaned with cotton
swab, paper gets
smeared.
7 C Print results
Scratches on paper - PP-101D, PP-101, PR-101,
SG-101, etc.
- Paper feeding from the
cassette
- Multiple number of sheets
loaded
Scratches on the PF return
lever due to paper feeding
from the cassette, and
duplex printing path.
- Change the paper feeding
method from the cassette
to the auto sheet feeder.
- If automatic duplex
printing is performed,
cancel it, and, by setting
only a single sheet of
paper in the auto sheet
feeder, manually print
- Paper is scratched.
- Marks appear on
printed paper.
2 - 6