403F】Printhead Abnormal Temperature Rises - Canon iPF9000S Troubleshooting Manual

13. 【403E】,【403F】Printhead abnormal temperature
rises
Occurrence
Three instances of the internal head temperature sensor reaching 120
condition
lower) have been detected for 28 ms.
C1
Printhead
C2
C3 Electrical
Ink supply
C4
system
Main unit
C5 electrical
equipment
Cause
C1 With the cover open, check to see if jams have not occurred.
C1 Check the firmware version (Paper jam detection)
C4 Check that ink is available in the ink tube.
Check to see if a paper cutting failure has not occurred on the most recently used
C1
printed matter.
C1 Check the face of the printhead (to see if it is not flawed by paper or foreign matter).
After removing and inserting the print head, start in service mode to clear the error.
C2,C3 Then, restart the printer in normal mode to check to see if the error recurs (possibly
poor contact).
C5 Check the main unit electrical equipment.
Flow 1
Is the flexible cable broken?
T18
No
The face is physically damaged from jammed paper or from foreign matter falling
onto the platen.
Electrical shorting in the head
Poor head contact
Abnormal head temperature rises caused by non-discharging
Faulty carriage (relay) PCB, head relay PCB, flexible cable, main controller
Point to check
Replace the flexible
cable
Yes
Replace the main
controller
Check the ink in the tube
Chapter 3 More Sophisticated Fault Isolation Tasks
iPF700/iPF8000 Series
iPF5000/iPF800 Series
Check the face for flaws
(never touch the face)
3-21
o
C or higher (or -10
Action
Remove.
Update to the
latest version
2F2F (P3-6)
2015 (P3-17)
Replace the head.
Replace the head.
Flow 1
Replace the carriage relay PCB
Replace the head relay PCB
Replace the carriage PCB
Replace the carriage unit
o
C or