Ricoh A172 - Page 166

Page Item Function Note
<1>
-13
Blank Margin Adjusts the width of the margins
at the edges of the copy paper.
Main Scan Lead Edge:
Adjusts the margin at the right
edge of the copy paper.
Main Scan Trail Edge:
Adjusts the margin at the left
edge of the copy paper.
Sub Scan Lead Edge:
Adjusts the margin at the
leading edge of the copy paper.
Sub Scan Trail Edge:
Adjusts the margin at the
trailing edge of the copy paper.
Adjustable range:
Right edge: –5
∼
5 mm
Left edge: –5
∼
5 mm
Lead edge: –5
∼
5 mm
Trailing edge: –5
∼
5 mm
Max Bk Level
Detection 1
Target
Adjusts the black level target
(DA1) for the AGC.
Default:8
Do not adjust in the field.
Max Bk Level
Detection 2
Target
Adjusts the black level target
(DA2) for the AGC.
Default:4
(R-E, G-E, B-E, R-O, G-O, B-O)
Do not adjust in the field.
<1>
-14
AD-Vref Target
Voltage
Selects the AD-V
REF
target
voltage to set the exposure
lamp voltage in the AGC.
Default: Copier: 2.7
FPU: 2.7
Do not adjust in the field.
AD-Vref
Coefficient
(Shading)
Selects the AD-V
REF
coefficient
to prevent the overflow of white
shading data.
Default data: Copier: 110
SPU: 110
Do not adjust in the field.
AD-Vref
Coefficient (Data
Mode)
Factory use only (Gray balance
adjustment)
Do not adjust in the field.
Copier AD-Vref
Coefficient
(Data Mode)
FPU
Factory use only. R-E = 66 G-E = 60 B-E = 65
R-O = 66 G-O = 60 B-O = 65
⇒
Rev. 4/14/97
Service
Tables
SM 4-15 A172/A199