Printer Engine Service Mode - Gestetner G056 Service Manual

5.2 PRINTER ENGINE SERVICE MODE

5.2.1 SERVICE MODE TABLE ("2. ENGINE MAINTE")
The new SP modes added for this model are shaded.
Mode Name Description
Regist sag Paper feed
timing
Fusing Fusing power
Control control
Fusing Temp Fusing
temperature
adjustment
Fusing T Disp Fusing
temperature
display
OHP Clutch Bypass paper
Rt feed roller
rotation for
transparencies
Fusing Start Initial fusing
setting
Charge Rol Charge roller
Bias voltage
adjustment
Mainscan Main scan
mag magnification
adjustment
Subscan mag Sub scan
magnification
adjustment
Developer Development
Bias Bias
Adjustment
Toner End Number of
Count prints after
toner near-end
is detected
SM
PRINTER ENGINE SERVICE MODE
Function /[Setting]
Adjusts the paper feed clutch timing at registration. The
paper feed clutch timing determines the amount of paper
buckle at registration. (A larger setting leads to more
buckling.)
[-8.0 to +8.0 / 0 mm / 2 mm/step]
Selects whether the fusing power control is on/off or
phase control.
Use "Phase" control if the room lights flicker when the
fusing lamp starts.
[Normal (USA), Phase (Europe/Asia)]
Adjusts the fusing temperature for printing.
[100 to 200 / 170°C / 10°C /step]
DFU
Displays the fusing temperature.
Selects the number of rotations for the bypass feed roller
when the paper type is set to "Transparencies."
This is to avoid jams when transparencies are being
used.
Roller turn:
Warms up the fusing unit for 20 s at power on or when
the machine warms up from the energy saver mode.
Normal:
There is no 20 s warm-up period.
Normally do not change the setting.
Adjusts the charge roller voltage. DFU
[1000 to 2000 / 1700V / 10 V/step]
Adjusts the main scan magnification.
[-0.5 to +0.5 / 0 % / 0.1 %/step]
Adjusts the sub scan magnification.
[-0.5 to +0.5 / 0 % / 0.1 %/step]
Adjusts the development bias for printing. DFU
[-800 to –200 / -700V / 10 V/step]
Adjusts the number of prints the machine can print after
it detects toner near-end.
[50 to 200 / 200 sheets / 50 sheets/step]
5-3 G073/G074