Ricoh A230 Service Manual page 237

SERVICE PROGRAM MODE
Mode No.
Class 1
Class 3
and 2
4-904* 23*
4-905 1
2
3
4
4-906*
4-907*
4-909* 1*
A230/A231/A232
Binary Error
Diffusion Pattern
Image Data Path –
Filtering/Magnifica
tion
Image Data Path –
Gradation
Processing
Image Data Path –
Image Overlay
Printout Type
Selection
Image Processing
Priority in
Text/Photo
Separation
Text/Photo Auto
Separation
Laser Pulse
Position Threshold
Function
Selects the error diffusion pattern for
text/photo mode in binary processing
mode.
Do not change the value.
Selects one of the following video data outputs, which will
be used for printing.
0: Filtering → Magnification
1: Magnification → Filtering
2: Test mode 1
3: Test mode 2
4: Filtering only
5: Magnification only
6: No processing
7: Normal operation
Do not change the value.
Selects one of the following video data outputs, which will
be used for gradation processing.
0: After image scanning
1: After MSU
2. After image overlay
3: Normal operation
Do not change the value.
Selects one of the following video data outputs, which will
be used for the image overlay function.
0: Grayscale processing data
1: Binary processing data
2: Normal operation
Do not change the value.
Selects one of the following video data outputs, which will
be used for the printer controller.
0: Normal operation
1: Black/white conversion
2: Not printout
3: Application through
Do not change the value.
Selects either text priority or photo
priority for text/photo mode, if auto
text/photo separation enabled with SP
4-907.
With "Photo priority", all of the image is
processed with the image processing
for photo mode. With "Text priority", the
machine performs the auto text/photo
separation and does the appropriate
image processing for each area.
Selects whether auto text/photo
separation is done.
Decides the threshold level for selecting
the type of laser pulse width modulation
that is used
Do not change the value.
4-28
Settings
0: Matrix 1
1: Matrix 2
0: Photo
priority
1: Text priority
0: No
1: Yes
0 ~255
1/step
32
SM