Service
Program
Mode Tables
2220*
Vref Setting
Adjusts the TD sensor reference voltage (Vref). Change this value after
replacing the development unit with another development unit that contains
toner.
[1 to 5 / 4 / 0.01 ]
1. Check the value of SP2-220 in both the machine containing the test unit
and the machine that you are going to move it to.
2. Install the test development unit, and then input the VREF for this unit
into SP2-220.
3. After the test, put back the old development unit, and change SP2-220
back to the original value.
2221*
Reverse Interval Drum,Transfer [0 to 2000 / 0 / 1 sheets]
Adjusts the threshold for the reverse rotation of the drum and
development/transfer motors. This helps the drum and transfer belt cleaning
operations. This reverse rotation will interrupt a multiple printing job.
2223* Vt Display
001
Current [0 to 5 / 4 / 0.01]
Displays the TD sensor output voltage for the immediately previous copy.
002
Average 10 copies [0 to 5 / 4 / 0.01]
Displays the average of the most recent TD sensor outputs (from the
previous 10 copies).
003
Rate of Change [-10000 to 10000 / 0 / 1]
Displays the rate of change in the TD sensor output.
004
GAIN [0 to 255 / 0 / 1]
Displays the GAIN value used to calculate the on time for the toner supply
motor.
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