Self Diagnostics - Sharp AR-M256 Service Manual

Trouble code
Trouble contents
Main Sub
code code
L4 01 Main motor trouble
11 Shifter motor trouble
L6 10 Polygon motor trouble
L8 10 Power abnormality detection trouble
U1 01 FAX battery error
02 PANEL LOW battery error
U2 04 EEPROM communication error
20 Machine speed code data error
40 CRUM chip communication error
U7 00 RIC communication trouble
U9 00 Operation control PWB communication
trouble
80 Operation control PWB communication
trouble (Protocol)
81 Operation control PWB communication
trouble (Parity)
82 Operation control PWB communication
trouble (Overrun)
84 Operation control PWB communication
trouble (Framing)
88 Operation control PWB communication
trouble (Time-out)
99 Operation panel destination error
EE EL Developer adjustment trouble
(Over-toned abnormality)
EU Developer adjustment trouble
(Under-toned abnormality)
PF 00 PF trouble

2. Self diagnostics

Trouble
code
Main Sub
code code
A0 01 Content Security incompatibility error
Details When the PCL or the FAX control PWB is
installed, it does not match with
compatible/incompatible setup of the MCU
PWB security.
Cause The security compatibility/incompatibility of
the installed PCL or FAX control PWB
does not match with that of the MCU PWB.
Check Cheek the security compatibility/
and incompatibility of each board. Match the
remedy security compatibility/incompatibility of the
boards.
E1 00 Content IMC PWB communication trouble
Details Communication trouble between MCU and
IMC PWB
Cause IMC PWB connector disconnection.
Motherboard connector pin breakage.
IMC PWB ROM defect, data failure.
Check Check the connectors of the IMC PWB and
and MCU PWB.
remedy
Check the grounding of the copier.
Check the ROM of the IMC PWB.
10 Content IMC PWB trouble
Details IMC PWB hardware abnormality
Cause IMC PWB abnormality
Check Replace the IMC PWB
and
remedy
Trouble
detection
OPE
Details of trouble
AR-M256/M257/M258/M316/M317/M318/5625/5631 TROUBLE CODE LIST 9 - 2
Trouble
code
Main Sub
code code
E1 11 Content IMC PWB ASIC error
Details ASIC abnormality on IMC PWB
Cause IMC PWB abnormality
Check Replace the IMC PWB
and
remedy
12 Content IMC PWB CODEC IC error
Details CODEC IC (JBIG chip) abnormality on
IMC PWB
Cause IMC PWB abnormality
Check Replace the IMC PWB
and
remedy
13 Content IMC PWB flash ROM error
Details Flash ROM abnormality on IMC PWB
Cause IMC PWB abnormality
Check Replace the IMC PWB.
and
When the program download is abnormally
remedy
terminated, a error may occur. In this case,
download the program again.
Remarks Program ROM abnormality
14 Content IMC PWB expanded memory module
(DIMM) error
Details IMC extended compression memory
module (DIMM) installation error.
IMC extended compression memory
module (DIMM) access error.
Cause IMC expanded memory module installation
trouble.
IMC expanded memory module trouble.
IMC expanded memory contact trouble.
IMC PWB abnormality.
Check Check installation of the expanded
and memory module. (Spec: Added to Slot 1.)
remedy
Replace the expanded memory module.
Replace the IMC PWB.
Remarks Extend memory abnormality for
compressed image store (DIMM module)
15 Content IMC PWB page memory error
/SRAM error
Details IMC PWB page memory or work SRAM
access error
Cause IMC PWB abnormality
Check Replace the IMC PWB
and
remedy
Remarks Print buffer page memory or work SRAM
abnormality
16 Content IMC PWB standard compression memory
error
Details Access error of standard compression
memory on IMC PWB
Cause IMC PWB abnormality
Check Replace the IMC PWB
and
remedy
Remarks Standard compression image store
memory abnormality
17 Content IMC PWB smoothing IC error
Details IMC PWB smoothing IC abnormality
Cause IMC PWB abnormality
Check Replace the IMC PWB
and
remedy
Details of trouble