Canon iPF9000S Troubleshooting Manual page 124

③Total non-ejection of
two adjacent colors
④Total non-ejection of the upper and lower halves of a line
Suspect a fault in the
⑤ ordered
Regularly
non-ejection electrical system
Not a faulty power PCB
⑥Data missing non-ejection (in
line A or B only)
⑦Data missing non-ejection (in
both lines A and B)
⑧Mixed colors
⑨Blurring
⑩Non-ejection of all
colors in one or two
No ink left in the tube
heads
Total non-ejection of the two
heads on a two-head model
Total non-ejection of a single
head on a two-head model
Total non-ejection of the single
head on a single-head model
* See P5-22 Electrical System
Block Diagram about the flat
cable (short) ⑤a
Troubleshooting Guide
Is there a history of occurrences
of Vh monitor error 2618?
Yes
Perform
Suspect a fault in the
electrical system
Not a faulty power PCB
Suspect a fault in the
head
Problem persists after
Cleaning B
iPF5000 Series
iPF8000 Series
iPF8000 Series
iPF5000 Series
iPF700 Series
iPF800 Series
iPF5000 Series
Suspect a fault in the
recovery system, ink
No supply system or head
Suspect a fault in the
electrical system
Not a faulty power PCB
Faulty head/replace.
Cleaning B
Changing or diminishing
positions (non-ejection
corrected)
Positions unchanged or increased (*)
(non-ejection persisting)
* The nozzles may have failed by themselves, Replace the head,
after performing T17 to make sure that there are no electrical
faults elsewhere.
Possibly electrical non-ejection in any part other
T17
than the head
T17
Most unlikely flat cable breaking
Suspect a fault in the
recovery system, ink
supply system, waste
ink route or head
T11
Faulty ink supply system most likely
Replace the power PCB
Check the carriage relay PCB/flat cable (short)
⑤a for connection
Check the flat cable (short) ⑤a for connection
Check the carriage relay
PCB/flat cable (short) for
installation (contact)
Normal
Print and check Vh
output on the main
controller (21.5 V)
4-4
T11
Possibly faulty ink supply
system
Possibly electrical
T17
non-ejection in any part
other than the head
T17
Electrical non-ejection most
likely in any part other than
the head
T17
Electrical non-ejection most
likely in any part other than
the head
Possibly faulty ink
T11
supply system
Electrical non-ejection
T17
most likely in any part
other than the head
Electrical non-ejection
T17
most likely in any part
other than the head
Replace the power PCB
Abnormal