Canon S200 Simplified Service Manual page 12

7.3 Product technical information
(1) Problems when evaluating
Function Paper type
1 Paper feeding Paper pick-up KH-201 (Glossy
performance problem side)
2 PH-101 (address
side)
3
4
5 Paper delivery All Japanese
problem postcards
6 Image quality Uneven print All paper types
density at the
final section
7 Uneven print HR-101/GP-301/
density at KH-201/PR-101/
insertion point to PH-101
spurs
8 Uneven print HR-101
density due to
paper cockling
9 Print head Plain paper
contacts paper
Note: Due to very specific occurrence conditions, the phenomenon above occur only rarely. The above 8 items (1 to 8) occur at the same level
as the current BJC-2100/S100.
Result Conditions
Last two sheets fed Low temperature / low
overlapped humidity
Overlapped paper When printing address
feeding side after printing whole
glossy side with high duty
pattern at low temperature
and low humidity
Last sheet is not
picked up
Failure to feed/print When stacking multiple
last sheet sheets of paper at low
temperature and low
humidity
Postcard ejection When printing max.
failure printable area and more
than 3 sheets are left on
the Paper Output Tray at
low temperature and low
humidity
Uneven horizontal When printing max.
image on final section printable area
of paper
Uneven horizontal When printing max.
image at the top of printable area at low
paper temperature and low
humidity
Uneven horizontal When printing max.
image at the top of printable area at low
paper temperature and low
humidity
Smeared paper Remarkable only when
surface printing high duty solid
pattern (Bk solid,
secondary Cl solid, Bk and
process Bk solid)
Countermeasure Cause
Set only one sheet of paper at a As the friction between stacked paper is
time for printing great, last two sheets fed overlapped.
*Friction rates differ by media lot
1) Dry the glossy side of paper As the friction between stacked paper is
adequately after printing great, last two sheets fed overlapped.
*Friction rates differ by media lot
2) Flatten the curled paper
If the last sheet is not picked up, As the friction between the stacked paper
set the enclosed thick paper and ASF becomes significant, the paper
underneath when printing only feed roller cannot pick up stacked paper.
one sheet of paper
1) Flatten the curled paper The last paper is picked up and fed too far,
then ejected without being printed
2) Set one sheet of paper at a
time for printing
Remove a postcard from the As the postcard being fed contacts those
Paper Output Tray after printing, on the Paper Output Tray, the final section
or perform printing without Paper of the postcard cannot be fed and printed
Output Tray. completely. This unfed paper may cause
print failure at the top of the next sheet.
Recommend printing within The final section of the sheet is not held by
"print-assured area" the Pinch Roller, and printing in this area of
loose paper can result in uneven density.
The occurrence rate is the same as the
current competitive printer (Z33).
Recommend printing within When the top of the paper contacts the
"print-assured area" spurs, a loop of paper can occur. When
ink is ejected, misalignment due to this
causes uneven density. Insignificant
except for specific pattern (high duty half
tone).
Recommend printing within As the paper surface is not flat at excessive
"print-assured area" ink ejection, uneven density occurs.
Insignificant except for specific pattern
(high duty half tone).
Adjust paper thickness lever to As the paper surface is not flat at excessive
thick paper position ink ejection, uneven density occurs.
Insignificant except for specific pattern
(high duty half tone).
Estimated call and claim
*Paper out error
*Two sheets of paper (postcards) are fed at
once
*Non ejection of ink
*Cannot print
*Paper out error
*Two sheets of paper (postcards) are fed at
once
*Non ejection of ink
*Cannot print
*Paper (postcard) is not picked up
*Paper out error
*Cannot print
*Paper out error
*Non ejection of ink (Paper is ejected without
being printed)
*Cannot print
*Cannot print the lower part of paper
*Lines/uneven print density at the rear edge of
paper
*Print data at the top of paper is
missing
*Poor print quality
*Cannot print the lower part of paper
*Lines/uneven print density at the final section
of paper
*Poor print quality
*Lines/uneven print density at the top of paper
*Poor print quality
*Line/uneven print density at the top of paper
*Poor print quality
*The printed side of paper is smeared.
*Poor print quality