Canon PIXMA MP760 Service Manual page 91

No Function Phenomenon
*
6 A Print results Soiling on the back
side of paper (lines
or streaks parallel
to the paper feed
direction)
7 B Print results Soiling on paper in
automatic duplex
printing (lines or
streaks
perpendicular to
the paper feed
direction)
Condition
-After continuous borderless In borderless printing,
printing of small sized paper printing is performed to
(such as 4x6), when a larger the size slightly larger
sized paper (such as A4) is than the paper size, and
rinted. ink off the paper is
-With Photo Paper Plus Double absorbed by the platen's
Sided or postcards, the ink absorber. Absorbed
phenomenon is likely to be ink may attach to the
noticeable and to be complained platen rib(s) after several
of by users, as printing is dozen sheets are printed,
performed on both sides of such causing soiling at the
paper. leading edge of paper or
on the back side of paper.
-Automatic duplex printing On the rib(s) inside the
(Photo Paper Plus Double Sided, sheet feed unit used for
postcards, plain paper) duplex printing, ink mist
may accumulate,
smearing paper.
2 - 10
Cause Corrective action
1.Perform Bottom plate cleaning
(from the printer driver) up to 3
times*1.
*1: Change the paper in each
Bottom plate cleaning. The
cleaning can end when paper dose
not get any soiling.
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.
Cleaning by user:
1. Perform Bottom plate cleaning
(from the printer driver) up to 3
times*1.
*1: Change the paper in each
Bottom plate cleaning. The
cleaning can end when paper does
not get any soiling.
2. If soiling on the paper still
remains after 3times 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.
Possible call or complaint
-Paper gets smeared.
-The back side of paper
gets smeared.
cleaning was performed,
and the platen ribs were
cleaned with cotton swab,
paper gets smeared.