Roller Cleaning - Ricoh Gestetner LANIER SAVIN G071 Service Manual

Roller Cleaning

The transfer roller is cleaned at the following times:
• After the user clears a paper jam
• After the user closes the front cover
• Just after the main power has been switched on
• While the doctor roller is reversing. This is done every 50 prints (SP 3-910,
DoctorIntval), to remove toner blockages in the development unit; if the 50-
print interval expires in the middle of a job, it is done at the end of the job.
After paper passes the transfer roller, the paper transfer solenoid releases the
transfer roller from the image transfer belt.
Then, a certain time after the trailing edge of the paper passes the registration
sensor, the following steps occur:
1) The paper transfer solenoid turns on again, and the transfer roller contacts
the transfer belt.
2) A negative charge is applied to remove toner stuck to the transfer roller.
3) Positive and negative charge is applied alternately to remove any toner that
is still stuck to the transfer roller.
Toner removed from the transfer roller goes back to the transfer belt, where it is
removed by the transfer belt cleaning unit.
SM
CÓPIA NÃO CONTROLADA
PAPER TRANSFER AND SEPARATION
6-43
CÓPIA NÃO CONTROLADA
G071