Ricoh FT7770 Service Manual page 310

29 I.D. Sensor Output
<Function>
30 Leading Edge Separation Corona Off Timing
<Function>
31 Scanner Brake Timing
<Function>
32 Copy Registration
<Function>
<Remark>
33 Leading Edge Erase
<Function>
<Remark>
34 Fusing Temperature
<Function> Varies the operating temperature of the fusing rollers.
<Remark>
Displays
the output voltage of the I.D. sensor for adjust-
ment.
(Factory use only) Must be center (8th position).
(Factory use only) Must be center (8th position).
Varies the leading edge registration of the copy
image.
The registration can be adjusted in 16 steps. One step
corresponds to an image shift on the copy of about
0.74 mm. Therefore, the image can be shifted a total
of 12 mm on the copy.
The original registration can be adjusted using VR 105
and 106 on the DF main board. (Refer to Original Re-
gistration Adjustment in Section 5.)
Varies the OFF timing of the erase lamp.
The timing can be adjusted in 16 steps. One step cor-
responds to an erase margin shift of about 0.74 mm.
Therefore, the erase margin can be changed a maximum
of 12 mm.
The temperature can be adjusted in 16 steps. One step
causes the temperature to rise or fall about 1.4°C.
Therefore, the total temperature change is 22.4°C.
5-97
30 April, '89