Gestetner A265, Service Manual

Page: 214 / 855

SERVICE PROGRAM MODE
A265/A267 4-26 SM
Mode No.
Class
1 and 2
Class
3
Function Settings
4-401*
Image Mode
Selection Selects whether the binary processing is
always used in Positive/Negative mode.
0: The machine uses the process selected
by the user with user tools.
1: The machine always uses binary picture
processing; greyscale processing is
disabled.
0: System
1: Binary
Selects one of the following video data
outputs, which will be used for printing.
0. N: Normal video processing
1. S: After auto shading processing
2. M: After magnification processing
3. F:
After MTF processing
4. G: After gamma correction
5. T: Data straight through (no video
processing)
4-412*
IPU Image Data
Path
Do not change the value.
Prints test patterns from the IPU or SBU
video data outputs. (1 ~ 13: IPU, 14 ~ 16:
SBU)
0. No Print
1.Vertical Line - 1 dot
2.Horizontal Line - 1 dot
3.Vertical Line - 2 dot
4.Horizontal Line - 2 dot
5.Alternating Dot Pattern
6.Grid Pattern - 1 dot
7.Vertical Bands
8.Grayscale - Horizontal
9. Grayscale - Vertical
10.Patch Pattern
11.Cross Pattern
12.Slant Pattern
13.Trimming Area
14.Vertical Line - 2 dot
15.Grid Pattern - 2 dot
16.16-grayscale
4-417
IPU/SBU Test
Pattern
Change to the copy mode display by
pressing the
'
(Interrupt) key, then print
the test pattern.
Turns on the exposure lamp.
4-902
Exposure Lamp ON
To turn off the exposure lamp, select “0”.
0: No (Off)
1: Yes (On)
Checks the difference value of the black
level for the EVEN channel after adjusting
the black level at power-up.
4-904 1*
SBU Gain
Adjustment
(EVEN)
Do not change the value.
However, after doing a memory all clear
(SP5-801), use it to re-input the previous
value.
0 ~ 255
1/step
40
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA