Canon iPF9000S Troubleshooting Manual page 67

Panel display
Code
(last 4
Large LCD
digits)
404A ERROR
E194-404A
Call for service.
404B ERROR
E199-404B
Call for service.
404C ERROR
E196-404C
Call for service.
Small Small
LCD 1 LCD 2
ERROR
E194-404
A
Call For
Service
ERROR
E199-404
B
Call For
Service
ERROR
E196-404
C
Call For
Service
Explanation/Detection sequence
Non-ejection count error
A non-ejection part operation counter has
reached a specified limit.
Temperature/humidity sensor error
When temperature 0 and humidity 0% are
detected, the detection mechanism is
considered failed and an error message is
displayed.
Serial number information mismatch
A mismatch has been detected between the
serial number information stored in the
EEPROM on the main PCB and that stored
in the EEPROM on the MTC relay PCB at
startup.
2-55
Chapter 2 Indexes by Case
Remedial Action
(★: Reference fault
isolation procedure
or tool)
Check the parts
counter and
replace the
target unit or
Refresh Service
Kit.
Initialize the parts
counter for the
target unit after
the replacement.
①Restart the
printer in
service mode
to clear the
error.
②Identify the
firmware
version and
update the
firmware to the
last release if
it is earlier
than Ver.1.31
(firmware
defect）.
③Remove and
reinsert the
temperature/h
umidity sensor
PCB
connector
④Replace the
temperature/h
umidity sensor
PCB.
①Check to see if
the correct
PCB is
mounted,
since a PCB of
the wrong
model may
have been
mistakenly
mounted
during
servicing.
②Invoke service
mode to
implement
PCB
replacement.