Service manual

MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
SERVICE MANUAL
6-9
Error
Code
(Hex)
Error factor Check:
A2 Document too long to scan.
A3
Document not detected by the document
rear sensor.
• Document front sensor
• Document rear sensor
• Document sensor PCB
• Document feed roller
• ADF motor
• Main PCB
AA
The document cover is not closed. Remove the document and close the
document cover.
AE The CCD HP sensor will not come ON.
AF
The CCD HP sensor will not go OFF.
• CCD unit
• CCD flat cable
• Driver PCB
• Main PCB
B0
Reading motor half inserted.
• Reading motor harness
B1
Dark level offset data level error for
scanning.
B2 Gain control data level error for scanning.
• CCD unit
• Main PCB
B3 Scan area left edge detection error.
B4
Scan area right edge detection error.
• CCD unit
• Main PCB
• Black markings on the white-level
reference film inside the scanner
top cover
B5
Horizontal scanning edge reduction
detection error in scanning area setting.
B6
Horizontal scanning edge enlargement
detection error in scanning area setting.
BB
White level data error.
• CCD unit
• CCD flat cable
• Driver PCB
BD
Black level data error.
• CCD unit
• Main PCB
BE
Scan starting edge detection error.
• CIS unit
• CIS flat cable
• Driver PCB
• Black markings on the white-level
reference film inside the scanner
top cover
D*
Modem error.
• Main PCB
E4
Out of recording paper.
• ASF
• Registration sensor
• Main PCB
E6
Write error in EEPROM.
• Driver PCB
E8 Data scanning error during transmission.
EA Document removed at phase B.
• CCD unit
• Main PCB