Gestetner B003 Service Manual page 216

SERVICE PROGRAM MODE
SP2 Mode Number
2209* 2* Toner Supply Correction
Data
2210* ID Sensor Pattern Interval
2213* 1* Copies After Toner Near-
End
2220* Vref Manual Setting
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
220.
3. After the test, put back the old development unit, and change SP2-220 back to
the original value.
2223* Vt Display
1* Current
2* Average Previous 10 copies
3* Rate of Change
4* GAIN
5* Image Pixel Count
2301* Transfer Current
Adjustment
1* 1st Side of Paper
2* 2nd Side of Paper
B003/B004/B006/B007
Function and [Setting]
Displays the toner supply correction coefficient (K).
It can also be used to adjust K, but the value is
changed again when V
copy.
The toner supply rate depends on the amount of
toner in the toner bottle. This change is corrected
using this coefficient. This SP can be used to check
the toner supply condition. The lower the value of K,
the lower the toner density.
[25 ~300 / 300 / 25 step]
Sets the interval between ID sensor pattern prints.
This setting allows adjustment for customers who
do not make many copies daily. The zero value
disables this setting.
[0~200 / 10 / 1 copy step]
Selects the number of copies that can be printed
once the copier has detected toner near-end.
Select 1 or 2 if the customer normally makes copies
of high density.
0: 90 copies
1: No copies
2: 10 copies
Adjusts the TD sensor reference voltage (Vref). [1.0
~ 5.00 V / 4.00V / 0.01V step]
Displays the TD sensor output voltage for each
copy.
Displays TD sensor output voltage of the
immediately previous copy.
Displays the average of the most recent TD sensor
outputs (from the previous 10 copies).
Displays the rate of change in the TD sensor
output.
Displays GAIN used to calculate the on time for the
toner supply motor.
Displays the image pixel count.
Adjusts the current applied to the transfer belt
during copying the 5 phases listed below.
Printing the first side of the paper (image area).
If the user uses thicker paper, the current may have
to be increased to ensure sufficient transfer of
toner.
[20~100µA / 35 (B004 & B007: 45) / 1µA step]
Printing the second side of the paper (image area).
[20~100µA / 35 (B004 & B007: 40) / 1µA step]
5-10
is measured for the next
T
for this unit into SP2-
REF
SM