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FIP-20 Low Density Error (Call for Service Low Density)
Step Check
Yes No
1
Initial check
Check the following for damage.
Transfer Unit (BTR) condition
SENSOR ADC ASSY condition
Imaging Unit (PHD) condition
Residual toner
Replace the parts
concerned
Go to step [2]
2
Check HARNESS ASSY ADC for connection
Is the HARNESS ASSY ADC connected to the SENSOR
ADC ASSY normally?
Go to step [3]
Replace the parts
concerned
3
Check HARNESS ASSY ADC for continuity
J136 <=> J1361 check continuous?
Go to step [4]
Replace
HARNESS ASSY
ADC
4
Check HARNESS ASSY FRONT1A for continuity
P1361 <=> J13 check continuous?
Go to step [5]
Replace
HARNESS ASSY
FRONT1A
5
Check Transfer Unit (BTR)
Replace new Transfer Unit (BTR), and check if an error
occurs.
Go to step [6] End of work
6
Check Imaging Unit (PHD)
Replace new Imaging Unit (PHD), and check if an error
occurs.
Go to step [7] End of work
7
Check SENSOR ADC ASSY
Imaging Unit (PHD)
Replace new SENSOR ADC ASSY, and check if an error
occurs.
Replace PWBA
HNB MCU
End of work