Ricoh FT8880 Service Manual page 61

5 June 1992
9
SP Adjustment -- 1 (PAGE 1 and 2)
Item
Separation Changes the ON timing of normal
Corona ON separation corona after leading edge
Timing Adj. separation.
Leading Edge Changes the ON timing of the
Registration Adj. registration clutch.
Leading Edge Changes the ON timing of the image
Erase Adj. erase after the leading edge erase.
Fusing Adjusts the hot roller temperature.
Temperature Adj. Use this mode with a thermometer.
Exposure Lamp Adjusts the light intensity of the
Adj. exposure lamp.
Front Staple Adjusts the front staple position.
Position Adj.
Rear Staple Adjusts the rear staple position.
Position Adj.
Adjustment Standards
Leading Edge Registration
Leading Edge Erase
Adjusts an output voltage from each
power pack. Output value changes
0.5% per step.
Note:
C
T1
T2
PTC Pre-transfer corona
D1
D2
D3
Function
0 ± 2 mm/0 ± 0.08" (Platen/Full Size)
4 ± 3 mm/0.16" ± 0.12" (50 ~ 150%)
6 ± 3 mm/0.24" ± 0.12" (151 ~ 200%)
4-15
SERVICE PROGRAM MODE
This adjustment is only for
the test purpose. Do not use
this mode in the field.
Charge corona
Transfer corona - first side
Transfer corona - second side
Separation corona - first side
Separation corona - second side
Separation corona - leading edge
Change/
Range
Step
Delay ON
Approx.
timing
2 mm
Approx. Delay paper
1 mm feeding
± 16
Approx. Widen erase
width
1 mm
Approx. Lower
temperature
1°C
Increase light
1.3%
intensity
Move to rear
1 mm
0 ~ 20
Move to front
1 mm
+