Service manual
2
-
6
Table 2-6 PIXUS 550i/PIXUS 850i/PIXUS 950i Trouble
Problems Model Cause Action Manual description
Paper moves diagonally/feed error PIXUS550i
PIXUS850i
When more print media is set, the separator roller slips
causing skewed feeding or feed error.
Increase the strength of rubber material by changing it frequently in order to
prevent pickup roller deformation.
Schedule: End of Oct. 2002 (running change basis)
Pinch roller marks
(PR-101/GP-301)
PIXUS550i The pinch roller oil adheres to the surface of the paper
leaving pinch roller marks.
Left as is, as the problem is solved after 2 or 3 sheets of normal paper are
fed.
Spur marks (GP-301) PIXUS550i Spur and holder burrs cause marks. Spur direction was changed, but faint spur marks remain.
Left as is, as the spur mark is very faint.
PR-101 Feed overlap occurs when
multiple papers are stacked
All models Static electricity between papers causes paper to stick
together resulting in feed overlap.
Change specification in user manual to set up to 10 sheets of paper one at a
time when stacking multiple sheets of paper.
Refer to User’s Guide, Print Media,
Photo Paper Pro PR-101
Head friction when printing on banner
paper
All models Banner paper is folded at the tip of the ejection tray causing
it to buckle, affecting paper at the print area, resulting in
head friction.
Change specification and description in user manual to perform banner
printing with the ejection tray stored.
Refer to User’s Guide, Print Media,
Banner Paper
Ink mist All models Ink mists are generated during borderless paper printing and
attaches to the platen rib.
(1) Change shape of platen rib
(2) Control carriage overrun during L format borderless printing
(3) Change default run over during borderless printing.
Above three measures were taken, but ink mist could not be eliminated
completely. Therefore, the platen rib is to be cleaned with a cotton swab on
site when mists appear.
Note: Do not touch the coat strip or borderless absorber.
The final sheet of PR-101 paper moves
diagonally
All models Paper is skewed easily because of the single roller structure
and the pressure of the side guide is strong when there is
only one paper.
Set an extra sheet of plain paper under the last paper.
Head friction All models (1) Paper float cannot be suppressed due to borderless
printing support.
(2) Head friction is caused by paper curl.
Set and print after correcting paper curl.