DOWNLOAD Sharp AR-M276 (serv.man6) Service Manual ↓ Size: 8.64 MB | Pages: 127 in PDF or view online for FREE

Model
AR-M276 (serv.man6)
Pages
127
Size
8.64 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Service Manual
File
ar-m276-sm6.pdf
Date

Sharp AR-M276 (serv.man6) Service Manual ▷ View online

AR-M236/M276/M237/M277  SIMULATION 8 - 10
Operation/procedure
When the [START] key is pressed, the copy lamp is lighted for 10sec.
Operation/procedure
1.
Select the load to be checked with the 10-key, and press the
[START] key.
The motor for 10sec, the solenoid ON for 500msec, OFF for 500msec.
(20 times)
When the [CUSTOM SETTINGS] is pressed, the operation is inter-
rupted.
The lift-up motor operates only when the tray is opened.
The lift-up motor operates only when the tray is opened.
Operation/procedure
Select the load to be checked with the 10-key, and press the [START]
key. 
The selected load is operated for 10sec.
Operation/procedure
1.
Select the load to be set with the 10-key.
2.
Press the [START] key.
When selected without setup, the selected value is registered and
highlighted. When selected with previous setup, the previous setup is
canceled and it is displayed normally.
Press [CA] key, and the simulation will be terminated and the machine
goes into the aging standby mode with the set content.
This setting is canceled by power OFF.
*1: When the machine exits from the fusing ignoring state, the roller
may be cooled down. Therefore, reset the machine to warm up
again.
5-3
Purpose
Operation test/check
Function 
(Purpose)
Used to check the operation of the copy lamp and the 
control circuit.
Section
Optical (Image scanning)
Item
Operation
6
6-1
Purpose
Operation test/check
Function 
(Purpose)
Used to check the operation of the loads (clutches and 
solenoids) in the paper transport system and the 
control circuit.
Section
Paper transport (Discharge/Switchback/Transport)
Item
Operation
Item
Content
1
LUM1
1st cassette lift-up motor
2
CPFC1
1st cassette pick-up solenoid
3
CPFS1
1st cassette paper feed clutch
4
MPFS
Manual feed pick-up solenoid
5
RRC
Resist roller clutch
6
PSPS
Separation pawl solenoid
7
OGS
Paper exit gate switching solenoid
8
LUM2
2nd cassette lift-up motor
9
CPFC2
2nd cassette pick-up solenoid
10
CPFS2
2nd cassette paper feed clutch
11
TRC2
2nd cassette transport roller clutch
12
LUM3
3rd cassette lift-up motor
13
CPFC3
3rd cassette pick-up solenoid
14
CPFS3
3rd cassette paper feed clutch
15
TRC3
3rd cassette transport roller clutch
16
LUM4
4th cassette lift-up motor
17
CPFC4
4th cassette pick-up solenoid
18
CPFS4
4th cassette paper feed clutch
6-2
Purpose
Operation test/check
Function 
(Purpose)
Used to check the operation of each fan motor and its 
control circuit.
Section
Others
Item
Operation
Item
Content
1
VFM
Only the fusing fan operates
2
DCFM&DCFM2
Power cooling fan, power cooling fan 2 
operations
3
VFM&DCFM&DCFM2
Fusing fan, power cooling fan, and 
power cooling fan 2 are operated at the 
same time.
7
7-1
Purpose
Setting/Operation test/check
Function (Purpose)
Used to set the aging operation conditions.
Item
Operation
Item
Content
1
AGING
Aging enable/disable setting
2
MISFEED
Jam detection enable/disable setting
3
FUSING
Fusing operation enable/disable setting
The fusing temperature is not controlled. The 
heater is not turned ON.
4
INTERVL
Intermittent setting (Valid only when set to AGING.)
5
WARMUP
Warm-up save setting
The machine goes into the ready state only by 
shading, disregarding fusing and process control.
After going into the ready state, normal control is 
performed.
6
DV CHK.
Developing unit detection enable/disable setting
AR-M236/M276/M237/M277  SIMULATION 8 - 11
When, therefore, the simulation is canceled by pressing the [CA]
key or when the copy mode display is shifted to the initial menu
display in the simulation mode of one page copy, the machine is
reset.
Note: In SIM 7-1, pressing [CA] key terminates the simulation and the
machine enters the aging mode without resetting. Therefore, to
perform "4. Intermittent setup," the intermittent cycle must be set
with SIM 7-6 in advance.
Reset is not performed when the machine enters the aging
mode.
Operation/procedure
1.
Enter the interval aging cycle time  (sec)  with the 10-key pad.
Refer to SIM 7-1.
2.
Press the [START] key.
When the [START] key is pressed in aging, copying is performed con-
tinuously. This simulation is used to set the time interval between copy
operations in the unit of second.
This setting is valid when SIM 7-1 (Intermittent setting) is enabled.
Operation/procedure
1.
Warm-up starts by the cover open/close.
(Can be performed repeatedly by open/close of the cover.)
2.
The warm-up time is counted up and displayed in the unit of sec.
If the [CA] key is pressed at this time, count-up is interrupted to ter-
minate the simulation. (However, warm-up is continued.)
3.
After completion of warming up, "WARM UP COMPLETED" is dis-
played and the control returns to the initial screen.
Operation/procedure
1.
Touch the exposure mode to be changed.
The current set value is displayed.
2.
Enter the set value with the 10-key. 
3.
Press the [START] key. 
Output is made with the entered value, and the display returns to the
original state.
(
) Linked with the destinations of SIM 26-6.
Linked with the auto exposure mode of SIM 46-19-1.
The minimum increment is 2V.
The result of (Set value – 199) / 2 is stored in the EEPROM.
When reading a value from the EEPROM, the value of (EEP value *2)
+ 200 is used as the set value.
Therefore, the set value entered must be an even number. If an odd
number is entered the entered odd number + 1 is displayed after
pressing [START] key.
Operation/procedure
1.
Touch the exposure mode to be changed.
The current set value is displayed.
2.
Enter the set value with the 10-key.
3.
Press the [START] key.
Output is made with the entered value for 30sec, and the display
returns to the original state.
7-6
Purpose
Setting/Operation test/check
Function (Purpose)
Used to set the cycle of intermittent aging.
Item
Operation
Setting range
1-255
Default
3
7-8
Purpose
Setting/Operation test/check
Function 
(Purpose)
Used to set the display of the warm-up time.
Item
Operation
8
8-1
Purpose
Adjustment/Operation test/check
Function 
(Purpose)
Used to check and adjust the operation of the 
developing bias voltage in each copy mode and the 
control circuit.
Section
Image process (Photoconductor/Developping/
Transfer/Cleaning)
Developer/Toner hopper
Item
Content
Installation 
range
Default
1
AE
AE  (
)
200-550
400 (–400V)
2
TEXT
Character
450 (–450V)
3
TEXT/PHOTO
Character/Photo
450 (–450V)
4
PHOTO
Photo
450 (–450V)
5
SUPER/PHOTO
Super photo
400 (–400V)
6
TONER SAVE
Toner save
376 (–376V)
8-2
Purpose
Adjustment/Operation test/check
Function 
(Purpose)
Used to check and adjust the operation of the main 
charger grid voltage (high mode) in each copy mode 
and the control circuit.
Section
Image process (Photoconductor/Developping/
Transfer/Cleaning)
Photo conductor
AR-M236/M276/M237/M277  SIMULATION 8 - 12
Min. unit: –25V increment
(
) Linked with the destinations of SIM 26-6.
Linked with the auto exposure mode of SIM 46-19-1.
*1. The negative value of the set value corresponds to the grid high
output voltage.
*2. The set values can be selected from the above 8 patterns only.
*3. The selected pattern determines the grid high voltage and the grid
low voltage.
If, for example, the grid high voltage is set to –480V (pattern 1), the
grid low voltage is –350V.
Operation/procedure
1.
Touch the exposure mode to be changed.
The current set value is highlighted.
2.
Enter the set value with the 10-key.
3.
Press the [START] key.
Output is made with the entered value for 30sec, and the display
returns to the original state.
Min. unit: -25V increment
(
) Linked with the destinations of SIM 26-6.
Linked with the auto exposure mode of SIM 46-19-1.
*1. The negative value of the set value corresponds to the grid high
output voltage.
*2. The set values can be selected from the above 8 patterns only.
*3. The selected pattern determines the grid high voltage and the grid
low voltage.
If, for example, the grid high voltage is set to –480V (pattern 1), the
grid low voltage is –350V.
Operation/procedure
1.
Touch the exposure mode to be changed.
The current set value is displayed.
2.
Enter the set value with the 10-key.
3.
Press the [START] key.
Output is made with the entered value for 30sec, and the display
returns to the original state.
The minimum increment is 2V.
The result of (Set value – 199) / 2 is stored in the EEPROM.
When reading a value from the EEPROM, the value of (EEP value *2)
+ 200 is used as the set value.
Therefore, the set value entered must be an even number. If an odd
number is entered the entered odd number + 1 is displayed after
pressing [START] key.
Item
Content
Setting 
range
Default
1
AE
AE (
)
1-8
3 (–530V)
2
TEXT
Character
5 (–580V)
3
TEXT/PHOTO
Character/Photo
5 (–580V)
4
PHOTO
Photo
5 (–580V)
5
SUPER/PHOTO
Super photo
3 (–530V)
6
TONER SAVE
Toner save
2 (–505V)
NO.
Set value
Grid High 
Grid Low
1 480
–480V
–350V
2 505
–505V
–375V
3
530
–530V
–400V
4
555
–555V
–425V
5
580
–580V
–450V
6 605
–605V
–475V
7 630
–630V
–500V
8 655  –655V
–525V
8-3
Purpose
Adjustment/Operation test/check
Function 
(Purpose)
Used to check and adjust the operation of the main 
charger grid voltage (low mode) in each copy mode 
and the control circuit.
Section
Image process (Photoconductor/Developping/
Transfer/Cleaning)
Photo conductor
Item
Content
Setting 
range
Default
1
AE
AE  (
)
1-8
3 (–400V)
2
TEXT
Character
5 (–450V)
3
TEXT/PHOTO
Character/Photo
5 (–450V)
4
PHOTO
Photo
5 (–450V)
5
SUPER/PHOTO
Super photo
3 (–400V)
6
TONER SAVE
Toner save
2 (–375V)
NO.
Set value
Grid High 
Grid Low
1 480
–480V
–350V
2 505
–505V
–375V
3
530
–530V
–400V
4
555
–555V
–425V
5
580
–580V
–450V
6 605
–605V
–475V
7 630
–630V
–500V
8 655  –655V
–525V
8-10
Purpose
Adjustment/Operation test/check
Function 
(Purpose)
Used to check and adjust the operation of the 
developing bias voltage in each printer mode and the 
control circuit.
Section
Image process (Photoconductor/Developping/
Transfer/Cleaning)
Developer/Toner hopper
Item
Content
Installation 
range
Default
1
DENS1(600)
Density 1 (600dpi)
200-550
400 (–400V)
2
DENS2(600)
Density 2 (600dpi)
450 (–450V)
3
DENS3(600)
Density 3 (600dpi)
450 (–450V)
4
DENS4(600)
Density 4 (600dpi)
450 (–450V)
5
DENS5(600)
Density 5 (600dpi)
500 (–500V)
6
TS(600)
Toner save (600dpi)
350 (–350V)
7
DENS1(1200) Density 1 (1200dpi)
300 (–300V)
8
DENS2(1200) Density 2 (1200dpi)
350 (–350V)
9
DENS3(1200) Density 3 (1200dpi)
376 (–376V)
10
DENS4(1200) Density 4 (1200dpi)
426 (–426V)
11
DENS5(1200) Density 5 (1200dpi)
500 (–500V)
AR-M236/M276/M237/M277  SIMULATION 8 - 13
Operation/procedure
1.
Touch the exposure mode to be changed.
The current set value is highlighted.
2.
Enter the set value with the 10-key.
3.
Press the [START] key.
Output is made with the entered value for 30sec, and the display
returns to the original state.
Min. unit: 2V increment
*1. The negative value of the set value corresponds to the grid high
output voltage.
*2. The set values can be selected from the above 8 patterns only.
*3. The selected pattern determines the grid high voltage and the grid
low voltage.
If, for example, the grid high voltage is set to –480V (pattern 1), the
grid low voltage is –350V.
Operation/procedure
1.
Touch the exposure mode to be changed.
The current set value is highlighted. 
2.
Enter the set value with the 10-key. 
3.
Press the [START] key. 
Output is made with the entered value for 30sec, and the display
returns to the original state.
Min. unit: 2V increment
*1. The negative value of the set value corresponds to the grid high
output voltage.
*2. The set values can be selected from the above 8 patterns only.
*3. The selected pattern determines the grid high voltage and the grid
low voltage.
If, for example, the grid high voltage is set to –480V (pattern 1), the
grid low voltage is –350V.
8-11
Purpose
Adjustment/Operation test/check
Function 
(Purpose)
Used to check and adjust the operation of the main 
charger grid voltage (high mode) in each printer mode 
and the control circuit.
Section
Image process (Photoconductor/Developping/
Transfer/Cleaning)
Photo conductor
Item
Content
Installation 
range
Default
1
DENS1(600)
Density 1 (600dpi)
1-8
5 (–580V)
2
DENS2(600)
Density 2 (600dpi)
5 (–580V)
3
DENS3(600)
Density 3 (600dpi)
5 (–580V)
4
DENS4(600)
Density 4 (600dpi)
5 (–580V)
5
DENS5(600)
Density 5 (600dpi)
7 (–630V)
6
TS(600)
Toner save (600dpi)
3 (–530V)
7
DENS1(1200)
Density 1 (1200dpi)
1 (–480V)
8
DENS2(1200)
Density 2 (1200dpi)
3 (–530V)
9
DENS3(1200)
Density 3 (1200dpi)
4 (–555V)
10 DENS4(1200)
Density 4 (1200dpi)
5 (–580V)
11 DENS5(1200)
Density 5 (1200dpi)
7 (–630V)
NO.
Set value
Grid High 
Grid Low
1 480
–480V
–350V
2 505
–505V
–375V
3
530
–530V
–400V
4
555
–555V
–425V
5
580
–580V
–450V
6 605
–605V
–475V
7 630
–630V
–500V
8 655  –655V
–525V
8-12
Purpose
Adjustment/Operation test/check
Function 
(Purpose)
Used to check and adjust the operation of the main 
charger grid voltage (low mode) in each printer mode 
and the control circuit.
Section
Image process (Photoconductor/Developping/
Transfer/Cleaning)
Photo conductor
Item
Content
Installation 
range
Default
1
DENS1(600)
Density 1 (600dpi)
1-8
5 (–450V)
2
DENS2(600)
Density 2 (600dpi)
5 (–450V)
3
DENS3(600)
Density 3 (600dpi)
5 (–450V)
4
DENS4(600)
Density 4 (600dpi)
5 (–450V)
5
DENS5(600)
Density 5 (600dpi)
7 (–500V)
6
TS(600)
Toner save (600dpi)
3 (–400V)
7
DENS1(1200)
Density 1 (1200dpi)
1 (–350V)
8
DENS2(1200)
Density 2 (1200dpi)
3 (–400V)
9
DENS3(1200)
Density 3 (1200dpi)
4 (–425V)
10
DENS4(1200)
Density 4 (1200dpi)
5 (–450V)
11
DENS5(1200)
Density 5 (1200dpi)
7 (–500V)
NO.
Set value
Grid High 
Grid Low
1 480
–480V
–350V
2 505
–505V
–375V
3
530
–530V
–400V
4
555
–555V
–425V
5
580
–580V
–450V
6 605
–605V
–475V
7 630
–630V
–500V
8 655  –655V
–525V
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