Ricoh FT6645 Manual page 76

23 April 1993
5) Magnification Compensation (V
V is determined by the selected reproduction ratio as follows:
BMG
–100
Dev. Bias
Voltage
–60
(negative)
–40
–30
–20
50%
4.4.3 Bias Control Out of Copy Cycle
To hold the toner on the sleeve rollers while the development sleeve rollers
are rotating without image development, a constant –300 V bias is applied.
BMG
81%
62%
61% 80% 115%
2-51
)
123%
116%
122% 141%
DEVELOPMENT
142% 161%
160%