4027】Carriage Lifting Error - Canon iPF9000S Troubleshooting Manual

14. 【4027】Carriage lifting error
Occurrence
Carriage failing to move to the lift position (lift cam sensor detection error)
condition
CR drive
problem
Lift cam drive
problem
Sensor detection
problem
Cause
With the HP exterior removed, check to see if there is any foreign matter, such
C1
as paper slips.
Check the gap phase and also check to see if the sensor flag and gear are not
C2
damaged.
Visually check the sensor mounting plate for deformation, bitten wires and
C3
missing connectors.
C1, C2 Restart the printer. And check for successful operation.
Flow 1 iPF5000 Series
Is the lift motor running?
Switch on
Troubleshooting Guide
Carriage unable to travel to the lift position (wide format/medium format)
C1
carriage encoder read error
Lift motor inoperable
C2 Idling caused by a damaged coupling (wide format/medium format)
Gear out of phase (Narrow format)
C3 Deformed sensor mounting plate
Point to check
No
Yes
Is the carriage moving up
and down?
Faulty lift motor and bundled wires
Yes
No
3-22
Action
Remove foreign
matter.
Fix.
Fix.
Flow 1, Flow 2
Replace the main PCB
Faulty sensor detection system
Check the gearing for faults
Lift cam sensor
Lift motor