Gestetner A193 Service Manual page 457

Mode No.
Class
Class 3
1 and 2
Left Side
Edge Erase
3
Margin
(Printing)
2-101 *
Right Side
Edge Erase
4
Margin
(Printing)
LD Power
Adjustment
2-103 *
ID Adjustment
2-106* for a Test
Pattern
Development
Bias
2-201 * Adjustment
Number of
Copies After
2-213*
Toner Near
End Detection
V Display
T
2-220 *
Transfer
Current
1 Adjustment
(Paper Tray)
Transfer
Current
Adjustment
2
(By-pass
Feed Table)
2-301 *
Transfer
Current
3 Adjustment
(Duplex)
Transfer
Current
4
Adjustment
(Cleaning)
SM
SERVICE PROGRAM MODE TABLE
Function
Adjusts the left side erase margin.
The specification is 2 ± 1.5 mm. See
"Replacement and Adjustment - Copy
Image Adjustments" for details.
Adjusts the right side erase margin.
The specification is 2 ± 1.5 mm . See
"Replacement and Adjustment - Copy
Image Adjustments" for details.
Adjusts the LD power.
Do not change the value.
Adjusts the image density level for black
pixels on test pattern printouts (made with
SP5-902).
Adjusts the development bias during
copying.
This can be adjusted as a temporary
measure if faint copies appear due to an
aging drum.
Selects the number of copies after toner
near-end has been detected.
Displays the TD sensor output voltage.
Press the key to exit the display.
Adjusts the current applied to the transfer
roller during printing from the paper tray.
If the user uses thicker paper, the current
may have to be increased to ensure
sufficient transfer of toner.
Adjusts the current applied to the transfer
roller during printing from the by-pass
feed table.
If the user uses thicker paper, the current
may have to be increased to ensure
sufficient transfer of toner.
Adjusts the current applied to the transfer
roller during printing from the duplex tray.
If the user uses thicker paper, the current
may have to be increased to ensure
sufficient transfer of toner.
Adjusts the current applied to the transfer
roller during roller cleaning.
If toner remains on the roller after
cleaning, increase the current.
13-23
Settings
0 ~ 9
1 mm/step
2.0 mm
0 ~ 9
1 mm/step
2.0 mm
-128 ~ +127
1 µW/step
- 103
0 ~ 255
1/step
255
-500 ~ -700
1 V/step
- 600 V
0: 50 copies
1: 20 copies
0: -2 µΑ
1: 0 µA
2: +2 µA
3: +4 µA
0: -2 µΑ
1: 0 µA
2: +2 µA
3: +4 µA
0: -2 µΑ
1: 0 µA
2: +2 µA
3: +4 µA
-10 ~ 0
1 µA/step
- 4 µA
A224