TONER SUPPLY AND RECYCLING
SM 6-103 B234/B235/B236/D101/D102/D103
Detailed
Descriptions
When the machine enters the toner supply mode, the toner supply cylinder and
toner hopper are checked for toner, by following the pattern described in the table
below step by step.
In the table below, the levels are monitored by the toner cylinder toner-end sensor
in the toner supply cylinder and by the toner hopper sensor in the toner hopper.
Pattern TS Cylinder
Toner?
Hopper
Toner?
Step Operation Panel Message
A
NO NO Step 1 Æ Step 2 Starting toner supply.
B
YES NO No Step 2 Starting toner supply.
C
NO YES No Step 1 Starting toner supply.
D
YES YES TS Mode End Toner present, canceling…
Step 1: Toner transported from toner entrance bank Æ toner supply cylinder
Step 2: Toner transported from toner supply cylinder Æ toner hopper
1 Toner Bottle Æ Toner Entrance Bank
The toner bottle end sensor in the toner entrance bank controls the operation of
two toner bottles motors. This sensor checks for the presence of toner:
• 2 s after the bottle chuck opens
• 500 ms after the toner bottle motor goes off
• Every 200 ms while the toner supply clutch is on
If the sensor detects insufficient toner at any one of these checks, the sensor
signals the machine to turn on the toner bottle motor.
2 Toner Entrance Bank Æ Toner Supply Cylinder
The toner bank motor and toner supply clutch drive the transport coil inside the
diagonal transport tube that carries toner from the toner entrance bank to the toner
supply cylinder.
The toner cylinder toner-end sensor monitors the level of toner in the toner cylinder
every 100 ms and signals the machine to turn on the toner bank motor for 2 sec.
when toner runs low (toner end) in the toner cylinder. If the sensor detects
insufficient toner for longer than 2 sec., it signals the machine to issue SC494
because toner transport has stopped due to an obstruction or some other problem.
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