Ricoh B286, Service Manual

Page: 536 / 622

Around the Drum
B286/B289 6-28 SM
6.4.6 COLLECTING USED TONER
The cleaning unit auger [A] pushes toner into the used toner collection bottle [B].
The used toner bottle motor [C] moves a cam [D] from side to side, to hit the side of the
used toner collection bottle. This causes a vibration, and this keeps the level of used toner
in the bottle flat. The motor never switches on during a job, to prevent this vibration from
causing a malfunction.
The motor operation timing is controlled as follows:
!
When the used toner overflow sensor detects that the used toner tank is almost full,
the motor switches on for 20 seconds at the end of the job (SP2926-1). During the
motor operation, printing and scanning cannot be done.
! After a new toner cartridge is installed and the cover is closed, the motor switches on
for 30 seconds (SP2926-2).
If the used toner overflow sensor [E] still detects toner after 20 seconds of vibration, the
overflow indicator on the operation panel starts to flash:
! Printing can continue until the end of the job. But, if 15 more meters are printed before
the end of the job, printing stops at the 15-meter point.
! After 15 meters of copying, or at the end of the job, the overflow indicator stops
flashing and stays on. The machine cannot be used until you remove the used toner
from the collection bottle.
! The length of paper that can be printed after the toner-bottle-full indication can
be made shorter or longer with SP2926-3 (Used Toner Control – Used Toner
Overflow Detection).