Service manual

AR-235/275 SIMULATION - 12
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 [OK] key.
Operation/procedure (Pattern 4)
After selecting the mode, enter the adjustment value and press the
[OK] key, and output will be made for 30sec.
The input value is in the increment of –25V.
*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 (Pattern 4)
After selecting the mode, enter the adjustment value and press the
[OK] key, and output will be made for 30sec.
The input value is in the increment of –25V.
*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 (Pattern 3)
Enter the adjustment value and press the [OK] key, and output opera-
tion is performed for 30sec.
Display items 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)
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
(Initial screen) (Input/Selection screen) (Executing screen)
Display items 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
Sim8-11 MHV(H) PRT
1:DENS1(600) 3
2:DENS2(600) 5
3:DENS3(600) 5
1/4
Sim8-11 MHV(H) PRT
5:DENS5(600) 7
EXEC [ 1- 8] 7
Sim8-11 MHV(H) PRT
5:DENS5(600) 7
EXEC [ 1- 8] 7
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
(Initial screen) (Input/Selection screen) (Executing screen)
Display items 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
8-13
Purpose
Adjustment/Operation test/check
Function
(Purpose)
Used to check and adjust the operation of the
developing bias voltage in FAX mode and the control
circuit.
Section
Image process (Photoconductor/Developping/Transfer/
Cleaning)
Developer/Toner hopper
Sim8-12 MHV(L) PRT
1:DENS1(600) 3
2:DENS2(600) 5
3:DENS3(600) 5
1/4
Sim8-12 MHV(L) PRT
5:DENS5(600) 7
EXEC [ 1- 8] 7
Sim8-12 MHV(L) PRT
5:DENS5(600) 7
EXEC [ 1- 8] 7