Toshiba Estudio 162 Owners Manual

							e-STUDIO162/162D/151/151D  TEST COMMAND, TROUBLE CODES  10 - 32 66 03 FAX PWB memory check 
(Executable only when the 
FAX is installed.)[Function]
Use to check the FAX PWB memory.
[Operation]
04 Signal send mode (Max. 
value) (Executable only 
when the FAX is installed.)[Function]
Use to set the signal send mode (Max. value).
Facsimile test command design specifications.
[Operation] Main 
codeSub 
codeContents Details of function/operation
1) Initial display
2) [
←/→] or after 2sec
Every time when [
→] key is pressed, the second line is changed in the sequence of No. 1 → 2 →3 → 1.
When [
←] key is pressed, the sequence is reversed.
∗[CLEAR] key: FAX control is terminated.
3) [OK (ENTER)] key
4) After completion of check
•When the result is OK
•In case of sum check error•In case of address bus check
error
•In case of data check error•In case of data bus check
error
•In case of erase check error
∗[CLEAR] key: Returns to 1) Initial display.
SELECT CHECK MEMORY
PRESS ←, →
SELECT MEMORY (1-3)
1:DRAMSELECT MEMORY (1-3)
2:SRAMSELECT MEMORY (1-3)
3:FLASH
CHECKING MEMORY
MEMORY CHECK RESULT
                OK
MEMORY CHECK RESULT
XXXXXXXX SUM    NGMEMORY CHECK RESULT
XXXXXXXX A-BUS  NG
MEMORY CHECK RESULT
XXXXXXXX DATA   NGMEMORY CHECK RESULT
XXXXXXXX D-BUS  NG
MEMORY CHECK RESULT
XXXXXXXX ERASE  NG
1 NO SIGNAL 13 7200bps(V34) 25 2400bps(V27ter)
2 33600bps(V34) 14 4800bps(V34) 26 300bps(FLAG)
3 31200bps(V34) 15 2400bps(V34) 27 2100Hz(CED)
4 28800bps(V34) 16 14400bps(V33) 28 1100Hz(CNG)
5 26400bps(V34) 17 12000bps(V33) 29 300bps(V21)
6 24000bps(V34) 18 14400bps(V17) 30 2100Hz(ANSam)
7 21600bps(V34) 19 12000bps(V17) 31 DUMMY RING
8 19200bps(V34) 20 9600bps(V17) 32 NO VOICE ANSWER
9 16800bps(V34) 21 7200bps(V17) 33 NO RING BACK TONE
10 14400bps(V34) 22 9600bps(V29) 34 LINE OFF HOOK
11 12000bps(V34) 23 7200bps(V29) 35 LINE ON HOOK
12 9600bps(V34) 24 4800bps(V27ter)
1) Initial display
2) 2-digit (1-35) with [10KEY] / [
←/→] / 2sec after
Pressing [
→] key or [←] key reverses the sequence.
∗[CLEAR] key: FAX control is terminated.
3) [OK (ENTER)] key
Send after setting
∗[CLEAR] key: Returns to 1) Initial display.
SELECT OUTPUT SIGNAL
(2 DIGITS)    No.___
No. (1-35)
1:NO SIGNAL..... No. (1-35)
35:LINE ON HOOK
OUTPUTING SIGNAL MAX
PRESS CLEAR TO STOP
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							e-STUDIO162/162D/151/151D  TEST COMMAND, TROUBLE CODES  10 - 33 66 05 Signal send mode (Soft SW 
set value) (Executable only 
when the FAX is installed.)[Function]
Use to set the signal send mode (Soft SW set value).
Facsimile test command design specifications.
[Operation]
07 Image memory content print 
(Executable only when the 
FAX is installed.)[Function]
Use to print the image memory content.
[Operation]
10 Image memory content clear 
(Executable only when the 
FAX is installed.)[Function]
Use to clear the image memory content.
[Operation] Main 
codeSub 
codeContents Details of function/operation
1 NO SIGNAL 13 7200bps(V34) 25 2400bps(V27ter)
2 33600bps(V34) 14 4800bps(V34) 26 300bps(FLAG)
3 31200bps(V34) 15 2400bps(V34) 27 2100Hz(CED)
4 28800bps(V34) 16 14400bps(V33) 28 1100Hz(CNG)
5 26400bps(V34) 17 12000bps(V33) 29 300bps(V21)
6 24000bps(V34) 18 14400bps(V17) 30 2100Hz(ANSam)
7 21600bps(V34) 19 12000bps(V17) 31 DUMMY RING
8 19200bps(V34) 20 9600bps(V17) 32 NO VOICE ANSWER
9 16800bps(V34) 21 7200bps(V17) 33 NO RING BACK TONE
10 14400bps(V34) 22 9600bps(V29) 34 LINE OFF HOOK
11 12000bps(V34) 23 7200bps(V29) 35 LINE ON HOOK
12 9600bps(V34) 24 4800bps(V27ter)
1) Initial display
2) 2-digit (1-35) with [10KEY] / [
←/→] / 2sec after
Pressing [
→] key or [←] key reverses the sequence.
∗[CLEAR] key: FAX control is terminated.
3) [OK (ENTER)] key
Send after setting
∗[CLEAR] key: Returns to 1) Initial display.
SELECT OUTPUT SIGNAL
(2 DIGITS)    No.___
No. (1-35)
1:NO SIGNAL..... No. (1-35)
35:LINE ON HOOK
OUTPUTING SIGNAL SSW
PRESS CLEAR TO STOP
•When print is allowed
After completion of printing,
FAX control is terminated.•When there is no print data
After 2 sec, FAX control is 
terminated.•When print is inhibited
After 2 sec, FAX control is 
terminated.
PRINT STOREDNO DATACAN NOT PRINT
•When there are some print data
After completion of memory clear, the buzzer
sounds.
Remains unchanged until the power is turned
off.•When there are no print data
After completion of memory clear
After 2sec, FAX control is terminated.
CLEAR IMAGE MEMORY
CLEARED
PLEASE POWER OFFCLEAR IMAGE MEMORY
CLEARED
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							e-STUDIO162/162D/151/151D  TEST COMMAND, TROUBLE CODES  10 - 34 66 11 300bps signal send (Max. 
value) (Executable only 
when the FAX is installed.)[Function]
Use to set the 300bps signal send (Max. value).
1: NO SIGNAL
2: 11111
3: 11110
4: 00000
5: 010101
6: 00001
[Operation]
12 300bps signal send (Soft 
SW set value) (Executable 
only when the FAX is 
installed.)[Function]
Use to set the 300bps signal send (Soft SW set value).
1: NO SIGNAL
2: 11111
3: 11110
4: 00000
5: 010101
6: 00001
[Operation] Main 
codeSub 
codeContents Details of function/operation
1) Initial display
2) [
←/→] or after 2sec
Every time when [
→]  key is pressed, the second line is changed in the sequence of No. 1 → 2 →
3 → 4 → 5 → 6 → 1.
When [
←] key is pressed, the sequence is reversed.
∗[CLEAR] key: FAX control is terminated.
3) [OK (ENTER)] key
∗[CLEAR] key: Returns to 1) Initial display.
SELECT SIGNAL
PRESS ←, →
SELECT SIGNAL (1-6)
1:NO SIGNAL..... SELECT SIGNAL (1-6)
6:00001
OUTPUTING SIGNAL MAX
PRESS CLEAR TO STOP
1) Initial display
2) [
←/→] or after 2sec
Every time when [
→]  key is pressed, the second line is changed in the sequence of No. 1 → 2 →
3 → 4 → 5 → 6 → 1.
When [
←] key is pressed, the sequence is reversed.
∗[CLEAR] key: FAX control is terminated.
3) [OK (ENTER)] key
∗[CLEAR] key: Returns to 1) Initial display.
SELECT SIGNAL
PRESS ←, →
SELECT SIGNAL (1-6)
1:NO SIGNAL..... SELECT SIGNAL (1-6)
6:00001
OUTPUTING SIGNAL SSW
PRESS CLEAR TO STOP
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							e-STUDIO162/162D/151/151D  TEST COMMAND, TROUBLE CODES  10 - 35 66 13 Dial test (Executable only 
when the FAX is installed.)[Function]
Use to the dial test.
[Operation]
17 DTMF signal send (Max. 
value) (Executable only 
when the FAX is installed.)[Function]
Use to set the DTMF signal send (Max. value).
[Operation] Main 
codeSub 
codeContents Details of function/operation
 Dial test (PULSE)
1) Initial display
∗[CLEAR] key: FAX control is termi-
nated.
2) Select 1
3) Enter the make time in 2 digits.
XXXX: Default
∗After deleting with [CLEAR] key,
input can be made.
4) [OK (ENTER)] key
yy is the selected pulse 10 or 20.
xx is the input value.
∗Select 2: Returns to “2)” display.
5) Select 1
Switched to 10/20PPS set with
pulse selection inside.
6) After setting
7) After completion of sending
∗Select 2: Returns to “4)” display.
8) Select 1
After 2sec, returns to 1) Initial display.
SELECT SIGNAL
1:PULSE    2:DTMF
INPUT MAKE TIME
(0-15)            __
INPUT DIAL #
XXXX
SEND yyPPS xxms
1:YES 2:NO
SENDING yyPPS xxms
TERMINATE ?
1:YES 2:NO
TERMINATED
 Dial test (DTMF)
1) Initial display
∗[CLEAR] key: FAX control is terminated.
2) Select 2
↓Select 2
3) Select 1
↓
↓
Select 2
4) Select 1
↓
XXXX: Default
∗After deleting with [CLEAR] key, input can be made.
4) [OK (ENTER)] key
xx indicates HI, and yy indicates Low Soft SW.
∗Select 2: Returns to “4)” display.
5) Select 1
HI/LO is selected with the signal level inside.
6) After setting the signal send level
7) After completion of sending
∗Select 2: Returns to “4)” display.
8) Select 1
After 2sec, returns to 1) Initial display.
SELECT SIGNAL
1:PULSE    2:DTMF
SELECT HIGH LEVEL
1:DEFAULT 2:SOFT SW.
↓INPUT VALUE
(0-15)            __
SELECT LOW LEVEL
1:DEFAULT 2:SOFT SW.
↓INPUT VALUE
(0-15)            __
INPUT DIAL #
XXXX
H:xx        L:yy
1:YES 2:NO
SENDING DTMF
TERMINATE ?
1:YES 2:NO
TERMINATED
1) Initial display
∗[CLEAR] key: FAX control is terminated.
2) [10KEY] input
The content selected with signal send level
selection is set inside.3) Communication is started after setting the
signal send level.∗[CLEAR] key: Returns to 1) Initial display.
INPUT DIAL #
SENDING SIGNAL MAX
PRESS CLEAR TO STOP
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							e-STUDIO162/162D/151/151D  TEST COMMAND, TROUBLE CODES  10 - 36 66 18 DTMF signal send (Soft SW 
set value) (Executable only 
when the FAX is installed.)[Function]
Use to set the DTMF signal send (Soft SW set value).
[Operation]
21 FAX information print 
(Executable only when the 
FAX is installed.)[Function]
Use to print the FAX information.
[Operation]
24 FAST SRAM clear 
(Executable only when the 
FAX is installed.)[Function]
Use to clear the FAST SRAM.
[Operation]
30 TEL/LIU status change 
check (Executable only 
when the FAX is installed.)[Function]
Use to check the TEL/LIU status change.
[Operation] Main 
codeSub 
codeContents Details of function/operation
1) Initial display
∗[CLEAR] key: FAX control is terminated.
2) [10KEY] input
The content selected with signal send level
selection is set inside.3) Communication is started after setting the
signal send level.∗[CLEAR] key: Returns to 1) Initial display.
INPUT DIAL #
SENDING SIGNAL SSW
PRESS CLEAR TO STOP
1) Initial display
2) [
←/→] or after 2sec
Every time when [
→] key is pressed, the second line is changed in the sequence of 1 → 2 → 3 →1.
When [
←] key is pressed, the sequence is reversed.
∗[CLEAR] key: FAX control is terminated.
3) [OK (ENTER)] key
•When print is allowed
After completion of printing,
FAX control is terminated.•When print is inhibited
After 2sec, FAX control is 
terminated.
SELECT REPORT (1-3)
PRESS ←, →
SELECT REPORT (1-3)
1:USER SW. LISTSELECT REPORT (1-3)
2:SOFT SW. LISTSELECT REPORT (1-3)
3:PROTOCOL
PRINT STOREDCAN NOT PRINT
1) Initial display 2) After completion of clearing
After 2sec, FAX control is terminated.
CLEAR FAST SRAMCLEARED
1) Initial display
↑
The display is switched every 2sec.
↓
∗
[CLEAR] key: FAX control is terminated.
HS2 :xxx  HS1 :xxx
RHS :xxx  EXHS:xxx
CHECKING
PRESS CLEAR TO STOP
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							e-STUDIO162/162D/151/151D  TEST COMMAND, TROUBLE CODES  10 - 37 66 32 Receive data check 
(Executable only when the 
FAX is installed.)[Function]
Use to check the receive data.
[Operation]
33 Signal detection check 
(Executable only when the 
FAX is installed.)[Function]
Use to check the signal detection.
[Operation]
34 Communication time 
measurement (Executable 
only when the FAX is 
installed.)[Function]
Use to measurement the communication time.
[Operation]
37 Speaker sound volume 
setting (Executable only 
when the FAX is installed.)[Function]
Use to set the speaker sound volume.
1: NO SOUND
2: LOW
3: MID
4: HIGH
[Operation] Main 
codeSub 
codeContents Details of function/operation
1) Initial display 2) After completion of reception
xx is OK or NG depending on the check
result. 
∗[CLEAR] key: FAX control is terminated.
RECEIVINGRESULT
            xx
1) Initial display
When a signal is detected, the display is changed from NONE to the following.
CI/CNG/CED/BT/DT/Flag/SDT/DTMF
∗[CLEAR] key: FAX control is terminated.
CHECKING        NONE
PRESS CLEAR TO STOP
1) Initial display
xx:xx:xx:xxx indicates oclock, minute, second, millisecond.
∗[CLEAR] key: FAX control is terminated.
COMM. TIME
xx:xx:xx:xxx msec
1) Initial display
2) [
←/→] or after 2sec
Every time when [
→] key is pressed, the second line is changed in the sequence of 1 → 2 → 3 →
4 → 1.
When [
←] key is pressed, the sequence is reversed.
∗[CLEAR] key: FAX control is terminated.
3) [OK (ENTER)] key
xxx: Set content
After 2sec, FAX control is terminated.
SELECT SPEEKER VOL.
PRESS ←, →
SELECT (1-4)
1:NO SOUNDSELECT (1-4)
2:LOW.....
STORED
xxx
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							e-STUDIO162/162D/151/151D  TEST COMMAND, TROUBLE CODES  10 - 38 66 38 Time setting/check 
(Executable only when the 
FAX is installed.)[Function]
Use to check the time setting.
[Operation]
41 CI signal check (Executable 
only when the FAX is 
installed.)[Function]
Use to check the CI signal.
When CI signal is detected, OFF 
→ ON.
[Operation] Main 
codeSub 
codeContents Details of function/operation
1) Initial display
∗[CLEAR] key: FAX control is terminated.
2) Select 1
xxxx.xx.xx(xxx) is the current value. (No revi-
sion of display)
3) Select 1
∗Select 2: Returns to 1) Initial display.
4) Enter the year in 4 digits.
5) Enter the month in 2 digits.
6) Enter the day in 2 digits.
xxxx.xx.xx(xxx) is the entered value.
∗Select 2: Returns to 1) Initial display.
7) Select 1
After 2sec, returns to 1) Initial display.2) Select 2
xx:xx is the current value.
3) Select 1
∗Select 2: Returns to 1) Initial display.
4) Enter oclock in 2 digits.
5) Enter minute in 2 digits.
xx:xx is the current value.
∗Select 2: Returns to 1) Initial display.
6) Select 1
After 2sec, returns to 1) Initial display.
SELECT TO SET
1:DATE     2:TIME
xxxx.xx.xx(xxx)
CHANGE?   1:YES 2:NO
INPUT YEAR
(4 DIGITS)____.__.__
INPUT MONTH
(1-12)    1998.__.__
INPUT DAY
(1-31)    1998.01.__
xxxx.xx.xx(xxx)
STORED?   1:YES 2:NO
STOREDxx:xx
CHANGE?   1:YES 2:NO
INPUT HOUR
(0-24)         __:__
INPUT MINUTE
(00-59)        01:__
xx:xx
STORED?   1:YES 2:NO
STORED
1) Initial display
∗[CLEAR] key: FAX control is terminated.
CHECKING      CI:OFF
PRESS CLEAR TO STOP
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							e-STUDIO162/162D/151/151D  TEST COMMAND, TROUBLE CODES  10 - 39
5. Trouble codes
A. Trouble codes list
B. Details of trouble codes
Main 
codeSub 
codeDetails of trouble
E1 00 IMC communication trouble
10 IMC trouble
13 IMC flash ROM error
16 IMC DIMM memory read/write check error
81 IMC communication interface error (parity)
82 IMC communication interface error (Overrun)
84 IMC communication interface error (Framing)
E7 02 LSU trouble
10 Shading trouble (Black correction)
11 Shading trouble (White correction)
16 Abnormal laser output
F5 02 Copy lamp lighting abnormality
F6 10 FAX board trouble
H2 00 Thermistor open
H3 00 Heat roller high temperature detection
H4 00 Heat roller low temperature detection
L1 00 Feeding is not completed within the specified time after 
starting feeding. (The scan head locking switch is locked)
L3 00 Scanner return trouble
L4 01 Main motor lock detection
L6 10 Polygon motor lock detection
U1 03 FAX board battery error
U2 04 EEPROM read/write error (Serial communication error)
11 Counter check sum error (EEPROM)
U9 99 Operation panel language error
Main 
codeSub 
codeDetails of trouble
E1 00 Content IMC communication trouble
Detail An abnormality occurs in communication 
between the CPU and the IMC.
Cause IMC – CPU signal line abnormality
IMC Memory defect/data abnormality
Check 
and 
remedyReplace the MCU PWB with new one.
10 Content IMC trouble
Detail An abnormality occurs in the IMC.
Cause USB chip error/CODEC error on the IMC.
Check 
and 
remedyReplace the MCU PWB with a new one.
13 Content IMC flash ROM error
Detail An abnormality occurs in the IMC flash ROM.
Cause IMC abnormality
Check 
and 
remedyReplace the MCU PWB with a new one.
If downloading of the program is abnormally 
terminated, it may cause an error. Download 
the program again to avoid this.E1 16 Content IMC DIMM memory read/write check error
Detail An installation error occurs in the IMC memory 
module.
An error occurs during access to the IMC 
memory.
Cause Improper installation of the IMC memory 
module.
IMC memory module abnormality
IMC memory contact abnormality
IMC abnormality.
Check 
and 
remedyCheck installation of the memory module.
Replace the memory module.
Replace the MCU PWB with a new one.
81 Content IMC communication interface error (parity)
Detail A parity error occurs in communication between 
the CPU and the IMC.
Cause IMC memory defect/data abnormality
Check 
and 
remedyCheck the memory of the IMC.
Replace the MCU PWB with new one.
82 Content IMC communication interface error (Overrun)
Detail An overrun error occurs in communication 
between the CPU and the IMC.
Cause IMC memory defect/data abnormality.
Check 
and 
remedyCheck the memory of the IMC.
Replace the MCU PWB with new one.
84 Content IMC communication interface error (Framing)
Detail A framing error occurs in communication 
between the CPU and the IMC.
Cause IMC memory defect/data abnormality.
Check 
and 
remedyCheck the memory of the IMC.
E7 02 Content LSU trouble
Detail The BD signal from the LSU cannot be detected 
in a certain cycle. (Always OFF or always ON)
Cause LSU connector or LSU harness defect or 
disconnection
Polygon motor rotation abnormality
Laser beams are not generated.
MCU PWB abnormality.
Check 
and 
remedyCheck connection of the LSU connector.
Execute TC 61-03 to check the LSU operations.
Check that the polygon motor rotates normally.
Check that the laser emitting diode generates 
laser beams.
Replace the LSU unit.
Replace the MCU PWB.
10 Content Shading trouble (Black correction)
Detail The CCD black scan level is abnormal when the 
shading.
Cause Improper connection of the CCD unit flat cable
CCD unit abnormality
MCU PWB abnormality
Check 
and 
remedyCheck connection of the CCD unit flat cable.
Check the CCD unit. Main 
codeSub 
codeDetails of trouble
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							e-STUDIO162/162D/151/151D  TEST COMMAND, TROUBLE CODES  10 - 40 E7 11 Content Shading trouble (White correction)
Detail The CCD white scan level is abnormal when the 
shading.
Cause Improper connection of the CCD unit flat cable
Dirt on the mirror, the lens, and the reference 
white plate
Copy lamp lighting abnormality
CCD unit abnormality
MCU PWB abnormality
(When occurred in the ADF scan position.)
Improper installation of the mirror unit
Check 
and 
remedyClean the mirror, lens, and the reference white 
plate.
Check the light quantity and lighting status of 
the copy lamp (TC 05-03).
Check the MCU PWB.
16 Content Abnormal laser output
Detail When the laser output is stopped, HSYNC is 
detected.
Cause Laser abnormality
MCU PWB abnormality.
Check 
and 
remedyCheck the laser emitting diode operation.
Replace the MCU PWB.
F5 02 Content Copy lamp lighting abnormality
Detail The copy lamp does not turn on.
Cause Copy lamp abnormality
Copy lamp harness abnormality
CCD PWB harness abnormality.
Check 
and 
remedyUse TC 5-3 to check the copy lamp operations.
When the copy lamp lights up.
Check the harness and the connector between 
the CCD unit and the MCU PWB.
When the copy lamp does not light up.
Check the harness and the connector between 
the copy lamp unit and the MCU PWB.
Replace the copy lamp unit.
Replace the MCU PWB.
F6 10 Content FAX board trouble
Detail Communication trouble between MCU and FAX 
control PWB
Cause FAX control PWB connector disconnection
Defective harness between FAX control PWB 
and MCU PWB
Motherboard connector pin breakage
FAX control PWB ROM error/Data error
IC on FAX PWB causes abnormality
Check 
and 
remedyCheck connector/harness of FAX control PWB 
and MCU PWB.
Check the grounding of the copier.
Check FAX control PWB ROM.
Replace the FAX PWB. Main 
codeSub 
codeDetails of trouble
H2 00 Content Thermistor open
Detail The thermistor is open.
The fusing unit is not installed.
Cause Thermistor abnormality
Control PWB abnormality
Fusing section connector disconnection
The fusing unit is not installed.
Check 
and 
remedyCheck the harness and the connector between 
the thermistor and the PWB.
Use TC 14 to clear the self diagnostic display.
H3 00 Content Heat roller high temperature detection
Detail The fusing temperature exceeds 240°C.
Cause Thermistor abnormality
Control PWB abnormality
Fusing section connector disconnection.
Check 
and 
remedyUse TC 5-02 to check the heater lamp blinking 
operation.
When the lamp blinks normally.
Check the thermistor and its harness.
Check the thermistor input circuit on the control 
PWB.
When the lamp keeps ON.
Check the power PWB and the lamp control 
circuit on the MCU PWB.
Use TC 14 to clear the self diagnostic display.
H4 00 Content Heat roller low temperature detection
Detail The fusing temperature does not reach 185°C 
within 27 sec of turning on the power, or the 
fusing temperature keeps at 140°C.
Cause Thermistor abnormality
Heater lamp abnormality
Thermostat abnormality
Control PWB abnormality
Check 
and 
remedyUse TC 5-02 to check the heater lamp blinking 
operation.
When the lamp blinks normally.
Check the thermistor and its harness.
Check the thermistor input circuit on the control 
PWB.
When the lamp does not light up.
Check for disconnection of the heater lamp and 
the thermostat. Check the interlock switch.
Check the power PWB and the lamp control 
circuit on the MCU PWB.
Use TC 14 to clear the self diagnostic display. Main 
codeSub 
codeDetails of trouble
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							e-STUDIO162/162D/151/151D  TEST COMMAND, TROUBLE CODES  10 - 41 L1 00 Content Feeding is not completed within the specified 
time after starting feeding. (The scan head 
locking switch is locked)
Detail The white area and the black marking on the 
shading plate are used to obtain the difference 
in the CCD level values for judgment of lock. 
When the difference in the levels of which and 
black is small, it is judged that the black mark 
could not be scanned by lock and the trouble 
code “L1” is displayed.
Cause The scan head is locked by the lock switch.
Mirror unit abnormality
The scanner wire is disconnected.
The origin detection sensor abnormality
Mirror motor harness abnormality
Check 
and 
remedyCheck to confirm that the scan head lock switch 
is released.
Use TC 1-1 to check the mirror reciprocating 
operations.
When the mirror does not feed.
Check for disconnection of the scanner wire.
Check the harness and the connector between 
the mirror motor and the MCU PWB.
Replace the mirror unit.
Replace the MCU PWB.
When the mirror does feed.
Use TC 1-2 to check the mirror home position 
sensor.
L3 00 Content Scanner return trouble
Detail 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.
Cause Mirror unit abnormality
Scanner wire disconnection
Origin detection sensor abnormality
Mirror motor harness abnormality
Check 
and 
remedyUse TC 1-1 to check the mirror reciprocating 
operations.
When the mirror does not return.
Check for disconnection of the scanner wire.
Check the harness and the connector between 
the mirror motor and the MCU PWB.
Replace the mirror unit.
Replace the MCU PWB.
When the mirror does feed.
Use TC 1-2 to check the mirror home position 
sensor.
L4 01 Content Main motor lock detection
Detail When the main motor encoder pulse is not 
detected for 100 msec.
Cause Main motor unit abnormality
Improper connection or disconnection the main 
motor and the harness.
MCU PWB abnormality
Check 
and 
remedyUse TC 25-01 to check the main motor 
operations.
Check connection of the main motor harness/
connector.
Replace the main motor.
Replace the MCU PWB. Main 
codeSub 
codeDetails of trouble
L6 10 Content Polygon motor lock detection
Detail The lock signal (specified rpm signal) does not 
return within a certain time (about 20 sec) from 
starting the polygon motor rotation.
Cause Polygon motor unit abnormality
Improper connection or disconnection of the 
polygon motor and the harness.
MCU PWB abnormality
Check 
and 
remedyUse TC 61-1 to check the polygon motor 
operations.
Check connection of the polygon motor 
harness/connector.
Replace the polygon motor.
Replace the MCU PWB.
U1 03 Content FAX board battery error
Details The SRAM backup battery voltage on FAX 
PWB falls.
Cause The SRAM backup battery voltage on FAX 
PWB falls.
Check 
and 
remedyCheck voltage of the SRAM back up battery.
Replace the battery.
U2 04 Content EEPROM read/write error (Serial 
communication error)
Detail EEPROM access process error
Cause EEPROM abnormality
Check 
and 
remedyCheck that the EEPROM is properly set.
Use TC 16 to cancel the trouble.
Replace the MCU PWB.
11 Content Counter check sum error (EEPROM)
Detail Check sum error of the counter area in the 
EEPROM
Cause EEPROM abnormality
Check 
and 
remedyCheck that the EEPROM is properly set.
Use TC 16 to cancel the trouble.
Replace the MCU PWB.
U9 99 Content Operation panel language error
Detail There is no language file. 
The language file is destroyed. 
Cause Language file abnormality
MCU PWB abnormality
Check 
and 
remedyMCU firmware download
Replace the MCU PWB. Main 
codeSub 
codeDetails of trouble
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