T01 Carriage Encoder Fault Isolation Tool
Cannot print
Random uneven
Can print
lines in an image in
paper feed direction
Position-dependent
uneven lines in
paper feed direction
P4-28 Explanatory
drawings2
T02 Interpreting Nozzle Check Patterns
Printing Nozzle Check Print
0
1
32
33
64
65
Printing in service mode
(one horizontal line per nozzle)
Check the main controller flat
cable (long) for connection
Is the flat cable broken?
T18
Is the flat cable broken?
T18
0
1
2
1279
2
3
34
35
66
67
Chapter 5 Fault Isolation Tool Collection
Yes
Yes
Normal operation is
restored by wiping the
carriage encoder film
Remove the carriage encoder film and wipe it lightly
with lens-cleaning paper moistened with water
1200dpi
A line
B line
0
2
1
3
64
66
65
67
Printing in user mode
(one horizontal line per two nozzles)
4-1
Clean the end face and then reinsert
the cable
Replace the flat cable
Replace the sensor/carriage
Replace the carriage encoder film
Replace the main controller
Replace the flat cable
Replace the carriage encoder film
4
6
5
7