Ricoh FW780 Service Manual page 391

Mode No.
Length Size
Magnification
Compensation on
Leading Edge
-28
Registration
Adjustment for the
Rear Feed
-29
Toner Density
Sensor Voltage
Setting
-30
Toner Sensor
-31 Voltage Display
(Last Copy)
Toner Sensor
Voltage Display
(Real Time)
-32
-33 Not Used
to
-34
SM
Function
The fusing roller's speed is slightly
higher than the drum speed.
The speed of the copy paper transport
will increase slightly after the leading
edge of the copy paper enters the
fusing unit.
To compensate for this, the speed of
the original feed motor is corrected
from the leading edge to 183 mm
(B048 copier only).
Adjusts the paper registration for the
rear original feed (B048 only).
If the setting of SP#-74 is 1, this setting
is used for the paper registration for
the front original feed as well as the
rear original feed. In this case, this
adjustment is automatically set for the
SP#-5 adjustment.
Changes the toner density sensor
voltage. Normally, the value is
automatically adjusted when the new
developer initialization (SP36) is done.
In this mode, PTL, main motor, QL and
the bias voltage for non-image area
can be turned or and off using the
Copy Media key.
Translucent paper = ON
Translucent Film = OFF
Displays the toner sensor output
voltage for the last copy.
Displays the real time toner sensor
output voltage.
In this mode, the PTL, main motor, QL
and the bias voltage for non-image
areas can be turned on and off using
the Copy Media key.
Translucent paper = ON
Translucent Film = OFF
When this SP mode is canceled, the
voltage will be continually displayed
during the copy cycle and in standby
mode (the toner sensor output voltage,
paper length and copy counter are
displayed one at a time).
To stop this, turn the main switch off
and on.
4-17
SERVICE TOOLS
Data
–100 100
10
Shorter Longer
–2.5% +2.5%
0: Standard
–9.9 9.9 mm
0
Advance Delay
80: Standard
50 120
80
Low High
A = X,XX
(Beeper)
A = X,XX
A = Toner Sensor Voltage
During the stand-by
condition, and copy
cycling the following data
is displayed.
A = X,XX
LE = X,XXX
CO = XX
(Beeper)
LE = Paper Length
(ex. 297 mm: LE=0.297
12 inch: LE=0.120)
CO = Copy counter
B047/B048