Canon Pixma iP1600 Pixma iP1200 Service Manual page 18

Canon color printer service manual
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(8-1. FAQ (Problems specific to the iP1000 and corrective actions) cont'd)
No.
*
Function
Phenomenon
7
B
Image
Smearing on printed side.
quality
8
B
Smearing on the backside, or
address side of postcards
9
C
Horizontal lines or uneven print
density at the trailing edge of
paper
10
C
Horizontal lines or uneven print
density due to LF roller feeding
at small pitch
*Occurrence level:
A: The phenomenon is likely to occur frequently. (Caution required).
B: The phenomenon may occur under certain conditions, but likeliness is assumed very low in practical usage.
C: The phenomenon is unlikely to be recognized by the user, and no practical issues are assumed.
Possible Call / Claim
- Smear on the printed side of paper
- Cannot print properly
- Paper edge crease
<Photo Paper Plus Double Sided>
- Smears on the already printed side
when printing the other side
<When printing the address side of
postcards>
- Smears on the address side
<When printing the message side of
postcards>
- Smears on the backside
- Cannot print to the bottom edge of
paper
- Lines or uneven print density appear
in the trailing edge of paper
- Cannot print properly
- Lines or uneven print density (on
skin tones and background)
- Cannot print properly
(17/23)
Corrective action
1. Correct the paper curl.
2. Recommend the user to conduct
printing in the print quality assurance
area.
1. Perform bottom plate cleaning from
the printer driver.
2. Clean the ribs on the platen with
cotton swabs/buds.
1. Recommend printing in the print
quality assurance area.
2. Change the print quality from Standard
to High mode.
3. Try other paper (PP-101)
1. Perform print head alignment.
2. Change the print quality from Standard
to High mode.
Cause
The edge of paper rises due when paper
is curled, causing the ink cartridge to rub
against the printed surface of paper,
resulting in smearing.
When borderless printing is conducted
continuously, ink mist attaches to the ribs
on the platen, and is transferred to the
backside of the following paper.
When the paper end comes off the pinch
roller, printing is performed without the
paper being held, preventing the ink
drops from being ejected in the correct
positions, resulting in unevenness.
Note: The problem is less noticeable
than that of the iP1500.
As the print media slightly slips while
being fed by the LF roller, printed areas
overlap, causing the problem.

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