Gestetner A294, Service Manual

Page: 241 / 600

Rev. 9/2001 SERVICE PROGRAM MODE
SM 4-19 A294/A295
Serv
ic
e
Ta
b
le
s
Mode No.
(Class 1, 2 and 3)
Function Settings
V
REF
Manual Setting
Adjusts the TD sensor reference voltage
(V
REF
).
2-220
B
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 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, 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.
0 ~ 5.0
0.01 V/step
2.5 V
V
T
Display 2-223
B
Displays the current TD sensor output
voltage.
Toner Bank Toner Discharge 2-226
This SP removes toner from the toner bank
to the toner hopper.
After turning the toner supply motor and the
toner bank motor on, the toner supply coil
clutch turns on and off at 2 second
intervals. The motors and clutch stop when
the toner near-end sensor (in the toner
bank unit) detects no toner.
Even if the sensor continues to detect
toner, this operation stops when the clutch
has been turned on and off 10 times, so
this SP may have to be repeated to clean
out the system completely. Start
Toner Supply Mode Display 2-227
Displays the toner supply mode used for
the last copy.
1: ID Sensor and TD Sensor (from the 11th
copy, using V
T
– V
REF
)
2: ID Sensor and TD Sensor (using
V
SP
/V
SG
) – before the 10th copy of a job
3: TD Sensor – temporary mode when ID
sensor output is abnormal
4: Image Pixel Count
Transfer Current Adjustment
Adjusts the current applied to the transfer
belt during copying on the 1st side of the
paper.
2-301
1 1st Copy Side
B
If the user uses thicker paper, the current
may have to be increased to ensure
sufficient transfer of toner.
10 ~ 200
1
µ
A/step
[A294 I & II ]
120
µ
A
[A295 I & II ]
140
µ
A
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA