Aficio MP1900 - Page 155

No.
Definition
Symptom Possible Cause
143 D
SBU white/black level correction error
The automatic SBU adjustment has
failed to correct the black level.
The automatic
SBU adjustment has
failed to correct the white level
twenty times consecutively.
Exposure lamp defective
Dirty white plate
Incorrect position
or width of white plate scanning
(SP4015)
BICU board defective
SBU board defective
144 B
Communication Error between BICU and SBU
The BICU board cannot detect the
SBU connect signal.
The flat cable between the BICU board and the
SBU has a poor connection
The flat cable between the BICU board and the
SBU is damaged
BICU board defective
SBU defective
145 D
Automatic SBU adjustment error
During the automatic SBU
adjustment, the machine detects
that the white level read from the
white plate
or paper is out of range.
(SP4015)
Exposure lamp defective
Dirty white plate
Incorrect position
or width of white plate scanning
(SP4015)
BICU board defective
SBU board defective
302 B
Charge roller current leak
A current leak signal for the charge
roller is detected.
Charge roller damaged
High voltage supply board defective
Poor connection of the PCU
Service Call Conditions
21
3
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA