Toner Replenishing Mechanism - Minolta CF910 Service Manual

1154SBM1201A

12-1. Toner Replenishing Mechanism

• Toner is replenished from the Hopper to the developing unit according to the amount of
toner to be replenished as detected through ATDC detection for the C, M, and Y toner
and through the black toner replenishing control for the Bk toner.
Storage/Toner Agitator 1 and Empty Detector/Toner Agitator 2
• The Agitating Coil turns to agitate the toner.
• In Toner Agitator 2, rotation of Agitating Coil 2 moves the Empty Detecting Plate up and
down and the Toner Empty Switch for each color of toner (S5 to 8) is actuated and deac-
tuated by the magnet fitted to the plate to detect a toner-empty condition.
S5 to 8: Deenergized
S5 to 8
• Agitating Coil 2 is turned through gears by the Toner Replenishing Motor of each color of
toner (M9 to 12).
Agitating Coil
2 Drive Gear
Metering Roller
Drive Gear
Toner Metering
S5 to 8: Actuated
Agitating Coil 1
Empty Detecting
Plate
Agitating Coil 2
Agitating Coil 1
Drive Gear
Toner Replenishing
Motor (C, M, Y) M10,
11, 12
Agitating Coil
2 Drive Gear
Metering Roller
1154M073AA
Drive Gear
M-64
S5 to 8
Agitating Coil 2
1154M031AD
Agitating Coil 1
Drive Gear
Toner
Replenishing
Motor (Bk) M9
1154M074AA