Ricoh J-P2 Service Manual page 225

17 January, 2003
Mode No.
3
(Class 1, 2, and 3)
906 5 K Coefficient
[Vmin Display] Vmin Display ([Color])
910
1 [K]
2 [Color]
911 [Vt Display Cur] Vt Current Display ([Color])
1 [K]
2 [Y]
3 [M]
4 [C]
912 [Vt Display Ave] Vt Average Display ([Color])
1 [K]
2 [Y]
3 [M]
4 [C]
913 [T. Supply Time] Toner Supply Time Display ([Color])
1 [K]
2 [Y]
3 [M]
4 [C]
[OPC Refresh]
920
1 Temperature
2 Humidity
PRINTER ENGINE SERVICE MODE
Function / [ Setting ]
*BCU Sets the coefficient to calculate the counter value
for black-and-white prints.
[ 0 to 1.00 / 1.00 / 0.01/step ] DFU
With the default setting (100), counters used for
process control count up by 1 when 1 black-and-
white print has been made.
*BCU Displays the current Vmin value for K
[ 0 to 2.00 / 0 / 0.01/step ]
*BCU Displays the lowest current Vmin value for the
colors (CMY).
[ 0 to 2.00 / 0 / 0.01/step ]
*BCU Displays the current Vt value.
[ 0.0 to 5.0 / - / 0.1V/step ]
*BCU
*BCU
*BCU
*BCU Displays the average Vt value.
[ 0.0 to 5.0 / - / 0.1V/step ]
*BCU
*BCU
*BCU
*BCU Displays the toner supply clutch on time for the
most recent page.
*BCU
[ 0 to 5000 / - / 10 ms/step ]
*BCU
*BCU
*BCU This SP determines the temperature threshold for
determining whether refresh mode is done just
after the machine is switched on.
The charge roller generates NOx (nitrogen
oxides), and these contaminate the OPC drum
surface and may cause a smeared image.
Just after the main switch is turned on, if the
temperature measured by both the thermistor
located at the right side on the laser optics
housing unit and the temperature/humidity sensor
is greater than the temperature specified in this
SP mode, refresh mode is done before initial
process control.
During refresh mode, toner is developed on the
OPC with 50V development potential and cleaned
to remove NOx. This cycle is repeated a few
times.
[ 10 to 30 / 25 / 1°C /step ]
*BCU This SP determines the humidity threshold for
determining whether refresh mode is done just
after the machine is switched on.
Just after the main switch is turned on, if the
humidity measured by the temperature/humidity
sensor is greater than the humidity specified in
this SP mode, refresh mode is done before the
initial process control self-check.
[ 10 to 90 / 75 / 1%/step ]
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