Sharp AL-2020 (serv.man2) Service Manual ▷ View online
AL-2040 SIMULATION, TROUBLE CODES 10 - 1
[10] SIMULATION, TROUBLE CODES
1. Entering the simulation mode
To enter the serviceman simulation mode, press the keys as follows:
Clear
→ Density select → Clear→ Density select
To cancel the simulation mode, press the clear key.
Flow chart of entering the simulation mode
1
YES
NO
NO
YES
YES
YES
1
NO
NO
YES
Is there a sub
code ?
code ?
Press the COPY
key.
key.
Press the COPY key.
The COPY QUANTITY
display blinks to indicate
"00" and the machine
display blinks to indicate
"00" and the machine
enters the ready
state for sub code input.
state for sub code input.
Enter the sub code with
the COPY QUANTITY key.
the COPY QUANTITY key.
10th digit
1st digit:
Press the COPY key.
The current set adjustment
value and the counter
value are displayed on the
COPY QUANTITY
value and the counter
value are displayed on the
COPY QUANTITY
displayed Sensor check,
etc. are displayed by the
etc. are displayed by the
alarm lamps, etc.
To change the current set
values, enter with the COPY
QUANTITY key.
values, enter with the COPY
QUANTITY key.
10th digit:
1st digit:
Count up of values:
COPY QUANTITY key
COPY QUANTITY key
Count down of values:
Zoom key + COPY
QUANTITY key
Zoom key + COPY
QUANTITY key
The entered value
is displayed on the
COPY QUANTITY
display.
is displayed on the
COPY QUANTITY
display.
Press the COPY
key.
key.
The entered value
is registered.
is registered.
Is it the
Perform the operation
according to the
simulation number.
according to the
simulation number.
performed ?
Press the clear key.
All displays on the
operation panel go off,
and the machine enters
the ready state for
entering the main code.
operation panel go off,
and the machine enters
the ready state for
entering the main code.
Press the clear key.
End
Is the
main code the
same ?
main code the
same ?
Is the
sub code
displayed ?
sub code
displayed ?
Press the clear key.
The COPY QUANTITY
display blinks to indicate
the previously set sub
enters the ready 7 state for
sub code input.
display blinks to indicate
the previously set sub
enters the ready 7 state for
sub code input.
code, and the machine
Press the clear key.
Enter the new main
code.
code.
The main code is
displayed on the
COPY QUANTITY
display.
displayed on the
COPY QUANTITY
display.
Start
Press the clear key.
Press the exposure
mode selector key.
mode selector key.
All displays on the
operation panel go off,
and the machine enters
operation panel go off,
and the machine enters
he ready state for entering
he main code.
he main code.
Count up of values:
COPY QUANTITY key
Count down of values:
Zoom key + COPY
QUANTITY key
COPY QUANTITY key
Count down of values:
Zoom key + COPY
QUANTITY key
The main code is
displayed on the
COPY QUANTITY
display.
displayed on the
COPY QUANTITY
display.
simulation for
operation
check?
Is another
simulation to be
Enter the main code with
the COPY QUANTITY key.
the COPY QUANTITY key.
10th digit:
1st digit:
Count up of values:
COPY QUANTITY key
Count down of values:
Zoom key + COPY
QUANTITY key
COPY QUANTITY key
Count down of values:
Zoom key + COPY
QUANTITY key
Press the clear key.
Press the exposure
mode selector key.
mode selector key.
Within 1sec
Within 1sec
Within 1sec
AL-2040 SIMULATION, TROUBLE CODES 10 - 2
2. List of simulations
Sim
No.
Kind of
main code
Sub
code
Operation
01 Optical system
01
Mirror scan operation
02
Mirror home position sensor (MHPS)
status display
status display
06
Aging of mirror scanning
02 SPF Individual
load operation
01
Single Paper Feeder (SPF) aging
operation <SPF model only>
operation <SPF model only>
02
SPF sensor status display
<SPF model only>
<SPF model only>
03
SPF motor ON <SPF model only>
08
SPF paper feed solenoid operation
check <SPF model only>
check <SPF model only>
05 Lamp ON
check
01
Operation panel display check
02
Fusing lamp, cooling fan operation
check
check
03
Copy lamp ON
06 Machine
individual load
operation
operation
01
Paper feed solenoid ON
02
Resist solenoid ON
07 Aging
01
Warm-up display and aging with jam
06
Intermittent aging
08
Shift to copy with the warm-up display.
08 High voltage
output check
01
Developing bias
02
Main charger (Grid high)
03
Grid voltage (Low)
06
Transfer charger
09
01
Duplex motor normal rotation
operation check
operation check
02
Duplex motor reverse operation check
04
Duplex motor rotation speed
adjustment
adjustment
10 Toner motor
operation check
NONE Toner motor aging
14 Trouble reset
NONE Cancel of troubles other than U2
16 U2 trouble
reset
NONE Cancel of U2 trouble
22 Counter display
04
JAM total counter display
05
Total counter display
08
SPF counter display <SPF model
only>
only>
12
Drum counter display
14
ROM version display
16
Duplex counter display
17
Copy counter display
18
Printer counter display
19
Scanner mode counter display
21
Scanner counter display
22
SPF JAM counter display <SPF model
only>
only>
24 Counter clear
01
JAM total counter clear
04
SPF counter clear <SPF model only>
05
Duplex counter clear
07
Drum counter clear
08
Copy counter clear
09
Printer counter clear
13
Scanner counter clear
14
SPF JAM total counter clear
<SPF model only>
<SPF model only>
15
Scanner mode counter clear
25 Main motor ON
01
Main motor operation check (Cooling
fan motor rotation check)
fan motor rotation check)
10
Polygon motor ON
26 Various setup
02
SPF setup
03
Second cassette setup
04
Machine duplex setup
06
Destination setup
07
Machine conditions check
20
Rear edge void setup
30
CE mark support control ON/OFF
38
Cancel of stop at drum life over
26 Various setup
39
Memory capacity check
40
Polygon motor OFF time setup
(Time required for turning OFF after
completion of printing)
(Time required for turning OFF after
completion of printing)
42
Transfer ON timing control setup
43
Side void setup
54
γ life correction setup
62
Energy-save mode copy lamp setup
30 Sensor
operation check
(Standard
provision)
(Standard
provision)
01
Paper sensor status display
41
06
OC cover float detection level
adjustment <SPF model only>
adjustment <SPF model only>
07
OC cover float detection margin
setting <SPF model only>
setting <SPF model only>
43 Fusing
temperature
setup
setup
01
Fusing temperature setting (Normal
copy)
copy)
04
Fusing temperature setting in multi
copy
copy
05
Fusing temperature setup in duplex
copy
copy
09
Fusing control setting for postcard-size
paper
paper
11
Fusing temperature setting for
postcard-size paper
postcard-size paper
14
Fusing start temperature setting
15
Postcard size paper fusing control
cycle sync setting
cycle sync setting
46 Exposure
adjustment
01
Copy density adjustment (300dpi)
02
Copy density adjustment (600dpi)
18
Image contrast adjustment (300dpi)
19
Exposure mode setup
20
SPF exposure correction <SPF model
only>
only>
29
Image contrast adjustment (600dpi)
30
AE limit adjustment
31
Image sharpness adjustment
32
Copier color reproduction setup
48 Magnification
ratio correction
01
Front/rear (main scanning) direction
and scan (sub scanning) direction
magnification ratio adjustment
and scan (sub scanning) direction
magnification ratio adjustment
05
The current SPF mode sub scan
direction magnification ratio is
displayed on the LCD/7seg.
<SPF model only>
direction magnification ratio is
displayed on the LCD/7seg.
<SPF model only>
49
01
Flash ROM program writing mode
50 Lead edge
adjustment
01
Lead edge image position
06
Copy lead edge position adjustment
(SPF) <SPF model only>
(SPF) <SPF model only>
10
Center offset adjustment
12
Document off-center adjustment
18
Memory reverse position adjustment in
duplex copy
duplex copy
19
Duplex copy rear edge void
adjustment
adjustment
51 Timing
adjustment
02
Resist quantity adjustment
53
08
SPF scan position automatic
adjustment <SPF model only>
adjustment <SPF model only>
61 Laser system
operation
03
Polygon motor check (HSYNC output
check)
check)
63 Shading
01
Shading check
02
Black level automatic correction
12
Light quantity stabilization wait time
setting
setting
13
Light quantity stabilization band setting
64 Self print
01
Self print
67
50
USB receive speed adjustment
(USB1.1)
(USB1.1)
Sim
No.
Kind of
main code
Sub
code
Operation
AL-2040 SIMULATION, TROUBLE CODES 10 - 3
3. Contents of simulations
Input method: Clear key
→ Exposure Select key → Clear key → Exposure Select key
Main
code
code
Sub
code
Content
01
01
Mirror scan operation
(Operation/Procedure)
1. When this simulation is executed, the mirror home position is detected.
(Operation/Procedure)
1. When this simulation is executed, the mirror home position is detected.
2. When the START key is pressed, scanning is executed at the speed corresponding to the currently set copy magnification
ratio.
The copy magnification ratio can be arbitrarily set with the magnification ratio select key/zoom key.
The copy magnification ratio can be arbitrarily set with the magnification ratio select key/zoom key.
02
Mirror home position sensor (MHPS) status display
The mirror home position sensor is monitored, and the sensor status is displayed as follows: (The lamp is lighted while the
sensor is ON.)
[Photoconductor drum cartridge replacement lamp]
The mirror home position sensor is monitored, and the sensor status is displayed as follows: (The lamp is lighted while the
sensor is ON.)
[Photoconductor drum cartridge replacement lamp]
06
Aging of mirror scanning
When the PRINT switch is pressed, the mirror base performs full scan at the speed of the set magnification ratio. After 3 sec,
the mirror case performs full scan again. These procedures are repeated until the clear key is pressed. (When the PRINT
switch is pressed once, the ready lamp keeps OFF.)
The status of the mirror home position sensor is displayed with the photoconductor cartridge lamp. (The lamp is ON when the
mirror is at the home position.)
During aging, the copy lamp keeps ON.
When the PRINT switch is pressed, the mirror base performs full scan at the speed of the set magnification ratio. After 3 sec,
the mirror case performs full scan again. These procedures are repeated until the clear key is pressed. (When the PRINT
switch is pressed once, the ready lamp keeps OFF.)
The status of the mirror home position sensor is displayed with the photoconductor cartridge lamp. (The lamp is ON when the
mirror is at the home position.)
During aging, the copy lamp keeps ON.
02
01
Single Paper Feeder (SPF) aging operation <SPF model only>
When START key is pressed, the set magnification ratio is obtained. For the SPF, the single surface document transport
operation is performed. For the R-SPF, the duplex document transport operation is performed.
Since, however, there is no required operating condition, the operation is not stopped even when a JAM occurs.
The magnification ratio change and the operation status display are Similar to SIM 1-01.
When START key is pressed, the set magnification ratio is obtained. For the SPF, the single surface document transport
operation is performed. For the R-SPF, the duplex document transport operation is performed.
Since, however, there is no required operating condition, the operation is not stopped even when a JAM occurs.
The magnification ratio change and the operation status display are Similar to SIM 1-01.
02
SPF sensor status display <SPF model only>
ON/OFF of the sensors in the SPF can be checked with the following lamps.
ON/OFF of the sensors in the SPF can be checked with the following lamps.
03
SPF motor ON <SPF model only>
(Operation/Procedure)
When the start key is pressed, the SPF motor rotates for 10 sec at the speed corresponding to the currently set magnification
ratio.
(Operation/Procedure)
When the start key is pressed, the SPF motor rotates for 10 sec at the speed corresponding to the currently set magnification
ratio.
08
SPF paper feed solenoid operation check <SPF model only>
The SPF paper feed solenoid (SPUS) is turned ON for 500msec and OFF for 500msec. This procedure is repeated 20 times.
The SPF paper feed solenoid (SPUS) is turned ON for 500msec and OFF for 500msec. This procedure is repeated 20 times.
05
01
Operation panel display check
• When the PRINT switch is pressed, all LEDs (including 7-segment LEDs) on the operation panel are lighted. (LED check
• When the PRINT switch is pressed, all LEDs (including 7-segment LEDs) on the operation panel are lighted. (LED check
mode)
• When 1Up key is pressed, the LEDs on the operation panel are lighted individually from the top left to the bottom right in
sequence. After completion of all individual lighting, all LEDs are lighted simultaneously. (The 7-segment LED lights the
three-digit sections at the same time.)
Individual lighting frequency
three-digit sections at the same time.)
Individual lighting frequency
ON: 300ms,
OFF: 20ms
• When the CLEAR key is pressed, this simulation is terminated.
• When the PRINT switch is pressed in the LED check mode, the machine enters the Key input check mode.
“Key input check mode”
When the machine enters the Key input check mode, the value display section indicates “– – –.” Every time any key on the
operation panel is pressed, the entered value is added and displayed on the value display section. However, the keys that
were pressed once are not counted again.
• When the PRINT switch is pressed, the entered value is added and displayed for 3 sec and all the LEDs are lighted. (LED
When the machine enters the Key input check mode, the value display section indicates “– – –.” Every time any key on the
operation panel is pressed, the entered value is added and displayed on the value display section. However, the keys that
were pressed once are not counted again.
• When the PRINT switch is pressed, the entered value is added and displayed for 3 sec and all the LEDs are lighted. (LED
lighting check mode)
(Note for Key input check mode)
• Press the PRINT switch at the end. (If it is pressed in the middle of the process, the entered value up to that moment is
• Press the PRINT switch at the end. (If it is pressed in the middle of the process, the entered value up to that moment is
displayed for 3 sec and the machine enters the LED lighting check mode. (ALL the LEDs are lighted.))
• Multiple key inputs are ignored.
02
Fusing lamp, cooling fan operation check
When the PRINT switch is pressed, the fusing lamp repeats operations of 500ms-ON and 500ms-OFF 5 times. During that
time, the cooling fan motor rotates.
When the PRINT switch is pressed, the fusing lamp repeats operations of 500ms-ON and 500ms-OFF 5 times. During that
time, the cooling fan motor rotates.
03
Copy lamp ON
(Operation/Procedure)
When the START key is pressed, the copy lamp is lighted for 5 sec.
(Operation/Procedure)
When the START key is pressed, the copy lamp is lighted for 5 sec.
Sensor name
Display lamp
Mirror home position sensor
OPC drum cartridge replacement lamp
Display
Sensor
Developer cartridge replacement lamp
Document set detection (SPID)
Jam lamp
SPF document transport detection (SPPD)
AL-2040 SIMULATION, TROUBLE CODES 10 - 4
06
01
Paper feed solenoid ON
(Operation/Procedure)
When the START key is pressed, the paper feed solenoid selected by the tray select key repeats ON (500ms) and OFF
(500ms) 20 times.
(Operation/Procedure)
When the START key is pressed, the paper feed solenoid selected by the tray select key repeats ON (500ms) and OFF
(500ms) 20 times.
02
Resist solenoid ON
(Operation/Procedure)
When the START key is pressed, the resist solenoid (RRS) repeats ON (500ms) and OFF (500ms) 20 times.
(Operation/Procedure)
When the START key is pressed, the resist solenoid (RRS) repeats ON (500ms) and OFF (500ms) 20 times.
07
01
Warm-up display and aging with jam
(Operation/Procedure)
1. When the simulation is executed, warming up is started.
2. Warm-up time is counted and displayed every second on the copy quantity display.
3. After completion of warm-up, the time count is stopped and the ready lamp is lighted.
4. Press the clear key to clear the warm-up time display, set the copy quantity, and press the START key, and the machine will
(Operation/Procedure)
1. When the simulation is executed, warming up is started.
2. Warm-up time is counted and displayed every second on the copy quantity display.
3. After completion of warm-up, the time count is stopped and the ready lamp is lighted.
4. Press the clear key to clear the warm-up time display, set the copy quantity, and press the START key, and the machine will
copy the set quantity repeatedly.
This simulation is canceled by turning off the power or executing any simulation which performs hardware reset.
06
Intermittent aging
(Operation/Procedure)
1. When the simulation is executed, warming up is started.
2. After completion of warm-up, the ready lamp is lighted.
3. Set the copy quantity and press the START key, and the machine will copy the set quantity repeatedly.
4. After 3 sec of the interval time from completion of copying the set quantity, the machine will resume copying.
5. The above operation 4 is repeated.
This simulation is canceled by turning off the power or executing any simulation which performs hardware reset.
(Operation/Procedure)
1. When the simulation is executed, warming up is started.
2. After completion of warm-up, the ready lamp is lighted.
3. Set the copy quantity and press the START key, and the machine will copy the set quantity repeatedly.
4. After 3 sec of the interval time from completion of copying the set quantity, the machine will resume copying.
5. The above operation 4 is repeated.
This simulation is canceled by turning off the power or executing any simulation which performs hardware reset.
08
Shift to copy with the warm-up display.
When the simulation code is entered, warming-up is started. The warming-up time is counted from 0 in the increment of 1 sec.
The operation during count-up process is as stated below.
When C key is pressed, the operation is terminated. (The 7-seg display indicates the sub code.)
Warming-up operation is continued.
After completion of warming-up, counting is terminated. (This is similar to SIM 07-01 without the aging function.
When the simulation code is entered, warming-up is started. The warming-up time is counted from 0 in the increment of 1 sec.
The operation during count-up process is as stated below.
When C key is pressed, the operation is terminated. (The 7-seg display indicates the sub code.)
Warming-up operation is continued.
After completion of warming-up, counting is terminated. (This is similar to SIM 07-01 without the aging function.
08
01
Developing bias
(Operation/Procedure)
When the START key is pressed, the developing bias is outputted for 30 sec.
(Operation/Procedure)
When the START key is pressed, the developing bias is outputted for 30 sec.
02
Main charger (Grid high)
(Operation/Procedure)
When the START key is pressed, the main charger output is supplied for 30 sec in the grid voltage HIGH mode.
(Operation/Procedure)
When the START key is pressed, the main charger output is supplied for 30 sec in the grid voltage HIGH mode.
03
Grid voltage (Low)
(Operation/Procedure)
When the START key is pressed, the main charger output is supplied for 30 sec in the grid voltage LOW mode.
(Operation/Procedure)
When the START key is pressed, the main charger output is supplied for 30 sec in the grid voltage LOW mode.
06
Transfer charger
(Operation/Procedure)
When the START key is pressed, the transfer charger output is supplied for 30 sec.
(Operation/Procedure)
When the START key is pressed, the transfer charger output is supplied for 30 sec.
09
01
Duplex motor normal rotation operation check
The duplex motor is rotated in the normal direction (paper exit direction) for 30 sec.
After completion of the process, the display returns to the sub code input standby state.
The duplex motor is rotated in the normal direction (paper exit direction) for 30 sec.
After completion of the process, the display returns to the sub code input standby state.
02
Duplex motor reverse operation check
The duplex motor is driven in the reverse direction for 30 sec.
After completion of the process, the display returns to the sub code input standby state.
The duplex motor is driven in the reverse direction for 30 sec.
After completion of the process, the display returns to the sub code input standby state.
04
Duplex motor rotation speed adjustment
When this simulation is executed, the current set value is displayed.
Enter the adjustment value with UP/UP key, and press START key to save the entered value. The display returns to the sub
code input standby mode. When the set value is increased, the speed is increased, When the set value is decreased, the
speed is decreased.
Setup range: 1 – 13
Default: 6
When this simulation is executed, the current set value is displayed.
Enter the adjustment value with UP/UP key, and press START key to save the entered value. The display returns to the sub
code input standby mode. When the set value is increased, the speed is increased, When the set value is decreased, the
speed is decreased.
Setup range: 1 – 13
Default: 6
10
NONE Toner motor aging
(Operation/Procedure)
When the START key is pressed, the toner motor output is supplied for 30 sec.
When the START key is pressed, the toner motor output is supplied for 30 sec.
14
NONE Cancel of troubles other than U2
(Operation/Procedure)
After canceling the trouble, the simulation is also automatically canceled.
After canceling the trouble, the simulation is also automatically canceled.
16
NONE Cancel of U2 trouble
(Operation/Procedure)
1. When the START key is pressed, the EEPROM total counter check sum is rewritten and the trouble is canceled.
2. After canceling the trouble, the simulation is also automatically canceled.
1. When the START key is pressed, the EEPROM total counter check sum is rewritten and the trouble is canceled.
2. After canceling the trouble, the simulation is also automatically canceled.
Main
code
code
Sub
code
Content
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