SERVICE PROGRAM MODE
B135/B138 5-12 SM
Vref Manual Setting [1.0 ~ 5.00 V / 4.00V / 0.01V step] 2220*
Adjusts the TD sensor reference voltage (Vref).
Change this value after replacing the development unit with another unit that
contains toner.
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 V
REF 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.
2223* Vt Display
Current 2223 1
Displays the TD sensor output voltage for the immediately previous copy.
Average Previous 10 copies 2223 2
Displays the average of the most recent TD sensor outputs (from the previous 10
copies).
Rate of Change 2223 3
Displays the rate of change in the TD sensor output.
GAIN 2223 4
Displays the GAIN value used to calculate the on time for the toner supply motor.
Image Pixel Count 2223 5
Displays the image pixel count.
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