Copy Process Control - Ricoh A151 Field Service Manual

COPY PROCESS CONTROL

2. COPY PROCESS CONTROL
•
Drum residual voltage (V
eliminated.
•
Drum wear correction has been eliminated.
Grid Voltage
Image Standard image
Density density grid voltage
Control
(–680 V)
Auto image density
level factor (SP34)
Toner Standard ID sensor
Density grid voltage
Detection (–460 V)
Between 0 Volts (Fixed)
Copies
NOTE: The boxed items can be adjusted by SP mode.
A202/A203
) correction and detection have been
R
Exposure Lamp
Voltage
Base exposure
lamp voltage
(Manual or ADS
mode) (SP48)
+
V correction factor
L
Reproduction ratio
correction factor
(A203 copier only)
Same as image
density control
Exposure lamp turns
off
Development Bias
Voltage
Base bias voltage
factor
(Manual or ADS
mode) (SP34)
+
Image bias voltage
adjustment factor
+ (SP37)
Note:
Base bias voltage at
manual ID level 7
can be adjusted with
SP50
Depends on ID
sensor bias setting
(SP33)
Note:
For the initial 499
copies, bias voltage
is increased by –20
volts
–160 Volts (Fixed)
Image bias voltage
adjustment factor
(SP37)
8-4
Erase Lamp
Depends on
paper size
and
reproduction
ratio
+
+
ID sensor
pattern
erase (Vsg
detection:
Full erase)
Full erase
(All LEDs
+ ON)
SM