Ricoh FT5233 Service Manual page 87

DEVELOPMENT
T3: The timing is corrected to 0 again (correction 2) when the image process
preparation period starts. This timing differs depending on the selected
paper feeding station.
Paper Feeding Station
By-pass Feed Table
Paper Tray Unit
T4: The charge corona turns on 330ms after correction 2. If the toner
is low, the toner supply clutch turns on at this timing.
T5: The development bias changes from the non-image bias to the image
bias 930ms (641ms for color) after correction 2.
T6: According to the original size and the reproduction ratio, the scanner
return timing is decided. The timing is corrected to 0 and the charge
corona turns off.
T7: The development bias changes from the image bias to the non-image
bias 444ms (194ms for color) after correction 3.
T8: The separation corona turns off 767ms after correction 3. Then the
development unit drive clutch turns off.
T9: The main motor and non-image development bias turn off 83ms after the
fusing exit sensor detects the trailing edge of the copy paper.
Upper Paper Tray
Lower Paper Tray
Paper Tray - 1
Paper Tray - 2
Paper Tray - 3
Black Dev. Unit
172ms
728ms
305ms
1,728ms
2,284ms
2,840ms
2-58
12 February 1992
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