Mode No.
Function
Settings
Class 1 Class 2
2220 *
V
TREF
Manual
Setting
Adjust the V
TREF
of the TD sensor.
1.50 ~ 3.00
0.01V/step
2.52V
Change this value after replacing the
development unit with another one that
already contains toner.
For example, when using a development
unit from another machine for test
purposes, do the following:
1. Check the value of SP2220 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, then
input the V
TREF
for this unit into SP2220.
3. After the test, put back the old
development unit, and change SP2220
back to the original value.
2223 *
V
T
Display
Displays the TD sensor output voltage.
2301 *
1 *
Transfer
Current
Adjustment
(1st side of
the paper)
Adjusts the current applied to the transfer
belt during copying on the 1st side of the
paper.
10 ~ 60
1
µ
A/step
32
µµ
A
If the user uses thicker paper, the current
may have to be increased to ensure
sufficient transfer of toner.
2 *
Transfer
Current
Adjustment
(2nd side of
the paper)
Adjusts the current applied to the transfer
belt during copying on the 2nd side of the
paper.
10 ~ 60
1
µ
A/step
32
µµ
A
See above.
6 *
Transfer
Current
Adjustment
(By-pass
Feed)
Adjusts the current applied to the transfer
belt during copying from the by-pass feed
table.
10 ~ 60
1
µ
A/step
48
µµ
A
See above; note that thicker paper can be
fed from the bypass feed tray, so the
factory setting is higher.
2801
TD Sensor
Initial Setting
Performs the TD sensor initial setting.
This SP mode controls the voltage
applied to the TD sensor to make the TD
sensor output about 2.5 V.
Use this mode only after installing the
machine, changing the TD sensor, or the
adding new developer.
2803
Forced
Charge
Corona Wire
Cleaning
Forces the charge corona wire cleaning
motor to start cleaning.
This only works if the optional wire
cleaning motor is installed.
SERVICE PROGRAM MODE TABLES
25 April 1997
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