Brother HL-4200CN, Service Manual

Page: 239 / 366

V-33
Transfer Roll Cartridge Life Over FIP
Remedy
Step Check
Yes No
1
Initial setting
Check the following for evidence of fault.
Transfer roll cartridge ASSY replacing
condition
Sensor TNR full replacing condition
Replace the parts
concerned
With tool
Go to step [2]
Without tool
Go to step [3]
2
Checking sensor TNR full
Does sensor TNR full function
normally?
Sensor TNR full using diagnostic tool,
check by Digital Input Test.
Go to step [6] Go to step [3]
3
Checking harness ASSY TFLSNS for
signal
Remove the transfer roll cartridge ASSY
Is P/J141-2PIN<=>P/J141-1PIN 0VDC?
Go to step [6] Go to step [4]
4
Checking harness ASSY TFLSNS for
signal
Is P/J141-3PIN<=>P/J141-1PIN +5VDC?
Go to step [5]
Replace
harness ASSY
EEPROM
5
Checking harness ASSY TFLSNS for
continuity
Is J142<=>J142 continuous normally?
Replace sensor
TNR full
Replace
harness ASSY
TFLSNS
6
Checking transfer roll cartridge ASSY
Replace new transfer roll cartridge ASSY,
and check if an error occurs.
Replace MCU
HL-4200
End of work
Print Head Cartridge Life Over FIP
Remedy
Step Check
Yes No
1
Initial setting
Check the following for evidence of fault.
Print head cartridge ASSY replacing
condition
PWBA HBN DRVA CRUM in print head
cartridge
ASSY replacing condition
Replace the parts
concerned
Go to step [2]
2
Checking PWBA HBN DRVA CRUM for
connection
Is PWBA HBN DRVA CRUM connector
connected to
the harness connector normally?
Go to step [3]
Replace
harness ASSY
CRUM
3
Checking harness ASSY CRUM for
continuity
Is J170<=>J71 continuous normally?
Go to step [4]
Replace
harness ASSY
CRUM
4
Checking harness ASSY EEPROM for
continuity
Is P71<=>J140 continuous normally?
Go to step [5]
Replace
harness ASSY
EEPROM
5
Checking print head cartridge ASSY
Replace new print head cartridge ASSY,
and check if an error occurs.
Replace MCU
HL-4200
End of work