Canon PIXMA iX6550, Service Manual, Page: 12 / 56

the print head and the logic board
in set. (Be sure to replace them at
the same time.)
(3) Head contact pin condition of the
carriage unit:
If the pin is bent or deformed,
replace the carriage unit.
(4) Cable connection:
- CR FFC (J502, J501, J500)
Re-connect the cable.
If any damage or breakage of the
cable is found, replace the carriage
unit.
11 times Carriage lift
mechanism
error [5110] (1) Foreign material that obstructs the
carriage movement:
Remove foreign material.
- Switch system unit
- Carriage unit
12 times APP position
error [6A80] (1) Cap absorber and wiper blade of the
purge drive system unit:
If the cap absorber contacts the
wiper blade, lower the cap
absorber so that it will not contact
the wiper blade.
(2) Foreign material around the purge
drive system unit:
Remove foreign material.
(3) Ink absorber right beneath the purge
drive system unit:
Confirm that the absorber stays in
place and does not contact the unit.
(4) Foreign material around the ASF unit:
Remove foreign material.
(5) Cable connection:
- PE sensor cable
- Motor multi harness ass'y
Re-connect the cables.
If any damage or breakage of the
cable is found, replace the cable.
(6) APP slit film condition:
Clean the APP slit film using lint-
free paper.
(7) APP code wheel gear condition:
If the gear wears, replace the gear.
- Purge drive system
unit
- Logic board ass'y
APP position
error during
initial purging [6A81]
14 times APP sensor
error [6A90]
16 times Pump roller
sensor error [5C20] (1) Cable connection
Re-connect the cable.
- Purge drive system
unit
17 times Paper eject
encoder error [6010] (1) Smearing on the LF slit film:
Clean the LF slit film using lint-
free paper.
- Timing slit disk feed
film
- Timing sensor unit
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