Ricoh A229 Service Manual page 242

Mode No.
(Class 1 , 2 & & & & 3)
2-201 Development Bias Adjustment
1 Image Area
2 ID Sensor
Pattern
3 OHP Sheet
Development
4
Performance
2-207 Forced Toner Supply
2-208 Toner Supply Mode
2-209 Toner Supply Rate
2-210 ID Sensor Interval
SM
Function
* Adjusts the development bias for copying.
This can be adjusted as a temporary
measure if faint copies appear due to an
aging drum.
* Adjusts the development bias for making
the ID sensor pattern for Vsp
measurement.
This service program affects ID sensor
pattern density and toner supply.
Do not adjust.
* Adjusts the development bias for copying
onto OHP sheets.
Adjusts the development potential for
*
making the ID sensor pattern for Vsp
measurement.
Do not adjust.
Forces the toner bottle to supply toner to
the toner supply unit for 7 seconds.
This mode finishes automatically after the
toner is supplied 7 times (1 s for each
time). This process is not normally needed
in the field for this model.
* Selects the toner supply mode.
Use image pixel count mode only as a
temporary countermeasure if the ID or TD
sensor is defective.
* Adjusts the toner supply rate.
Increasing this value reduces the toner
supply clutch on time. Use a lower value if
the user tends to make lots of copies that
have a high proportion of black.
Changes the interval for making the ID
sensor pattern (V /V
SP
If the user normally makes copies with a
high proportion of black, reduce the
interval.
4-15
SERVICE PROGRAM MODE
-200 ~ -700
10 V/step
-550 V
-200 ~ -700
10 V/step
-360 V
-200 ~ -700
10 V/step
-550 V
-140 ~ -380
1 V/step
-270 V
Start
Sensor
Control
Image Pixel
Count
50 ~ 2000
5
650 mg/s
0 ~ 500
1 copy/step
detection).
SG
50 copies
Settings
mg/s/ step
A229