Read Sharp AR-156 (serv.man3) Service Manual online
5. TROUBLE CODES
A. Trouble codes list
Main
code
code
Sub
code
Trouble content
Detail of trouble
E7
01
Duplex model memory setup error,
memory not-detected error
memory not-detected error
The memory is not set properly or the memory capacity is not set to the duplex setup
(6M).
Cancel method: Set SIM 26-39 code number to 2.
(6M).
Cancel method: Set SIM 26-39 code number to 2.
E7
03
HSYNC not detected.
LSU (laser diode, reception element, APC circuit) trouble
LSU drive circuit (ASIC) trouble
LSU drive circuit (ASIC) trouble
E7
04
CCD white level trouble
CCD drive circuit (CCD PWB, ASIC harness) trouble
Copy lamp lighting trouble (Copy lamp, invertor PWB)
Copy lamp lighting trouble (Copy lamp, invertor PWB)
E7
05
CCD black level trouble
CCD drive circuit (CCD PWB, ASIC, harness) trouble
E7
12
Shading trouble (White correction)
Dirt on white plate for scanning white level
E7
14
ASIC connection trouble
Improper connection between CPU and ASIC (pattern cut, improper connection of lead
pin)
pin)
E7
15
Copy lamp disconnection trouble
Copy lamp or copy lamp drive circuit (invertor PWB) trouble Copy lamp disconnection
E7
16
Abnormal output of laser
LSU (laser diode, reception element, APC circuit) trouble
LSU drive circuit (ASIC) trouble
LSU drive circuit (ASIC) trouble
L1
00
Feeding is not completed within
the specified time after starting
feeding.
the specified time after starting
feeding.
When the mirror base is returned for the specified time (6 sec) in mirror initializing
after turning on the power, the mirror home position sensor (MHPS) does not turn
OFF. Or when the mirror base is fed for the specified time (about 6 sec) after start of
copy return, the mirror home position sensor (MHPS) does not turn OFF.
after turning on the power, the mirror home position sensor (MHPS) does not turn
OFF. Or when the mirror base is fed for the specified time (about 6 sec) after start of
copy return, the mirror home position sensor (MHPS) does not turn OFF.
L3
00
Return is not completed within the
specified time.
specified time.
When the mirror base is returned for the specified time (6 sec) in mirror initializing
after turning on the power, the mirror home position sensor (MHPS) does not turn
ON.Or when the mirror base is returned for the specified time (about 6 sec) after start
of copy return, the mirror home position sensor (MHPS) does not turn ON.
after turning on the power, the mirror home position sensor (MHPS) does not turn
ON.Or when the mirror base is returned for the specified time (about 6 sec) after start
of copy return, the mirror home position sensor (MHPS) does not turn ON.
L4
01
Main motor lock
When the main motor encoder pulse is not detected for 100msec.
L6
10
Polygon motor lock
The lock signal (specified rpm signal) does not return within a certain time (about
20sec) from starting the polygon motor rotation
20sec) from starting the polygon motor rotation
H2
00
Thermistor open detection
The fusing thermistor is open.
H3
00
Heat roller abnormally high
temperature
temperature
The fusing temperature rises above 240˚C.
H4
00
Heat roller abnormally low
temperature
temperature
The fusing temperature does not reach 185˚C within 27 sec of turning on the power,
or the fusing temperature keeps at 140˚C.
or the fusing temperature keeps at 140˚C.
U2
01
Counter sum check error
When the counter check sum value stored in the EEPROM is abnormal.
U2
04
EEPROM serial communication
error
error
When a communication trouble occurs with the EEPROM.
U2
40
CRUM IC
Serial communication error when a communication trouble occurs with the CRUM IC.
F2
04
Toner cartridge type error
When a toner cartridge of different type is used.
F6
80
Communication trouble with FAX
PWB (Protocol)
PWB (Protocol)
Error in data reception from the FAX board to the MCU.
Occurs when the message header of the message format is other than F.
Cancel method: Turn OFF/ON the power.
Occurs when the message header of the message format is other than F.
Cancel method: Turn OFF/ON the power.
F6
81
Communication trouble with FAX
PWB (Parity)
PWB (Parity)
Error in data reception from the FAX board to the MCU.
Occurs when the odd number parity set with SMR (serial mode register) differs from
the reception data.
Cancel method: Turn OFF/ON the power.
Occurs when the odd number parity set with SMR (serial mode register) differs from
the reception data.
Cancel method: Turn OFF/ON the power.
F6
82
Communication trouble with FAX
PWB (Overrun)
PWB (Overrun)
Error in data reception from the FAX board to the MCU
Occurs when the next data reception is completed with RDRF (Receive Data Register
Full) flag of SS (Reserial status register) set to 1.
Cancel method: Turn OFF/ON the power.
Occurs when the next data reception is completed with RDRF (Receive Data Register
Full) flag of SS (Reserial status register) set to 1.
Cancel method: Turn OFF/ON the power.
F6
84
Communication trouble with FAX
PWB (Framing)
PWB (Framing)
Error in data reception from the FAX board to the MCU.
Occurs when the stop bit is 0. (The stop bit must be 1.)
Cancel method: Turn OFF/ON the power.
Occurs when the stop bit is 0. (The stop bit must be 1.)
Cancel method: Turn OFF/ON the power.
F6
88
Communication trouble with FAX
PWB (Time-out)
PWB (Time-out)
Occurs when time is out without response in data communication between the FAX
board and the MCU.
Cancel method: Turn OFF/ON the power.
board and the MCU.
Cancel method: Turn OFF/ON the power.
F6
10
FAX PWB trouble
Communication trouble between the MCU and the FAX board or between the FAX
board and the FAX panel
Cancel method: Turn OFF/ON the power. Check connections.
board and the FAX panel
Cancel method: Turn OFF/ON the power. Check connections.
AR-F152
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