Ricoh B121 Service Manual page 174

SERVICE PROGRAM MODE
4902* Exposure Lamp ON
4902 1 Turns the exposure lamp on or off. To turn off the exposure lamp, select "OFF".
(The exposure lamp shuts off automatically after 180 seconds.)
4903* ADS Level
4903 1 Adjusts the ADS level.
4904* ADS Lower Limit
4904 1 Adjusts the ADS lower limit.
4905* ADS Level
4905 1 Checks the whole area (0 = All) or the area between 15 mm and 90 mm from the
left edge (1 = One) to adjust the ADS level.
4921* Image Adj Selection (
4921 1 Image Adj Selection (Copy)
Selects which mode the settings from SP4-922 to SP4-932 are used for.
0 = None
4 = Photo 2
8 = Special 3
4922* Scanner Gamma
Selects "text" or "photo" as the priority output mode. This setting is applied to all
image processing modes of SP4-921.* 6.5.4 IPU
4922 1 Scanner Gamma (Copy)
4923* Notch Selection (
Selects the value of the center ID adjustment notch for the ID adjustment LEDs.
• Normally the center notch is 3 (range 1-5). If –1 is selected, each notch shifts
down (becomes lighter). If +1 is selected, each notch shifts up (becomes darker).·
• This setting is applied to all image processing modes of SP4-921.
4923 1 Notch Selection (Copy)
Texture Removal (
4926*
Adjusts the texture removal level that is used with error diffusion. 0: The default
value for each mode is used. Text 1, Photo 2, Special 2, and Special 5 have a
default of 3 and Photo 1, 3 have a default of 1.
1: No removal applied.
2 – 5: Removal applied at the level specified here. The higher the setting (level), the
less clear the image will become (more texture removal). This setting is only applied
to the originals in SP4-921.
4926 1 Texture Removal (Copy)
B121 Series/B259 Series
[0 ∼ 255 / 252 / 1/step]
[0 ∼ 255 / 80 / 1/step]
[0 = All / 1 = One]
6.5.4)
[0 ~ 10 / 0 / 1]
1 = Text 1 2 =Text 2
5 = Photo 3 6 = Special 1
9 = Special 4 10 = Special 5
[0=System default/1=Text/2=Photo]
6.5.4)
[–1 = Light / 0 = Normal / +1 = Dark]
6.5.4)
[0 ~ 6 / 0 / 1/step]
5-14
3= Photo 1
7 = Special 2
SM