Canon imageRUNNER 2270 Service Manual page 616

Chapter 15
Code Cause
E191 There is an error in the communication with the high-voltage power supply.
0000 The data transmission/reception does
not end normally 500 msec after the
most recent transmission/reception
of data ended normally.
E202 There is an error in the detection of the CIS home position.
0001 The attempt to detect the home
position fails when the CIS is moved
forward.
0002 The attempt to detect the home
position fails when the CIS is moved
back.
E225 The light intensity of the CIS is faulty.
0001 During shading operation, the
intensity is below a specific level.
0002 During DF stream reading, the sheet-
to-sheet light intensity is faulty.
E227 The reader unit power supply is faulty.
0001 At time of power-on, the 24-V port is
off.
0002 At the start of a job, the 24-V port is
off.
15-10
Remedy
Replace the high-voltage power supply.
Replace the DC controller PCB.
Disconnect and then connect the
harness connector. Replace the
following as necessary: scanner home
position sensor, scanner motor, reader
controller PCB.
Disconnect and then connect the
harness connector. Replace the
following as necessary: scanner home
position sensor, scanner motor, reader
controller PCB.
Disconnect and then connect the
flexible cable. Replace the following as
necessary: flexible cable, CIS, reader
controller PCB.
Disconnect and then connect the
flexible cable. Replace the following as
necessary: flexible cable, CIS, reader
controller PCB.
Disconnect and then connect the power
supply harness connector. Replace the
power supply.
Disconnect and then connect the power
supply harness connector. Replace the
power supply.