Gestetner A193 Service Manual page 460

SERVICE PROGRAM MODE TABLE
Mode No.
Class
Class 3
1 and 2
Forced Toner
Supply
2-908
Forced
Charge Roller
2-909
Cleaning
Forced
Transfer
2-910
Roller
Cleaning
Image Density
Selection
2-911*
Charge Roller
Temperature
2-912*
Correction
Auto TD
Sensor Initial
Setting Mode
2-913*
Printer γ Table
(GAVD)
2-916*
Selection
Humidity
2-980 Sensor Output
Display
TD Sensor
Control Value
2-995* 1 Display
(Factory)
A224
Function
Forces the toner bottle to supply toner to
the toner supply unit for 1.5 minutes.
Toner supply finishes automatically after
1.5 minutes. This process is not normally
needed in the field for this model, as the
machine can handle most cases where
toner runs short temporarily.
Forces charge roller cleaning.
After selecting "1", press Enter or
start this feature. Press
Forces transfer roller cleaning.
After selecting "1", press Enter or
start this feature. Press
Selects the humidity coefficients for
determining V and V
TREF
sensor initial setting output.
This setting can be adjusted by the key
operator to make image density lighter or
darker (see Replacement and Adjustment
- Image Density Adjustment by Key
Operator).
Corrects the charge roller temperature.
Do not use this SP mode unnecessarily
(i.e., unless it is impossible to cure dirty
backgrouund by any other
Selects whether or not the TD sensor
initial setting process is performed
automatically at installation.
Select "No" if the PCU detection
mechanism has a problem. However,
usually do not use this SP mode.
Selects the printer γ table (GAVD) type.
This SP mode is only effective in the
grayscale processing mode.
A larger value gives a darker image.
Displays the humidity sensor output data
in hex code as %Rh.
Displays the TD sensor control value
(V ), which was adjusted in the
CONT
factory. The machine normally uses this
value, unless SP 2-999 is changed away
from 0.
13-26
Settings
0: No
1: Yes
0: No
1: Yes
to
to stop.
0: No
1: Yes
to
to stop.
0: Darker
from the TD 1: Dark
TE
2: Normal
(A224)
3: Light
(A193)
4: Lighter
-5 ~ +5
1 (25V)/step
0 (A193)
2 (A224)
means).
0: No
1: Yes
1 ~ 4
1/Step
2
SM