Panasonic DP-CL18 Service Manual page 112

DP-CL18
7.3.6. Toner Transfer to Paper
Once all four layers of toner reside up on the accumulator belt, the registration roller clutch is energized to advance a sheet of paper
(which has already been picked) to the second bias transfer roller. The toner image on the rotating accumulator and the paper that
is being fed into the image unit are synchronized for proper alignment. The leading edge of toner image on the accumulator belt
is aligned 4 mm from the leading edge of the paper. A strong positive voltage in the second bias transfer roller attracts the toner
from the accumulator belt to the paper. The second bias transfer roller voltage is approximately +1400 volts. This voltage varies
depending on the ambient temperature, humidity, print speed and media being printed upon. The paper (or transparency film)
advances at the same speed as the accumulator belt.
As the toner is being transferred to the paper, the accumulator belt cleaning blade is activated. This blade scrapes any remaining
traces of toner from the accumulator belt prior to the next image transfer. The scraped toner is discharged to the waste toner
cartridge by the spiral paddle shaft.
112