Toner Supply Unit; Composition; Mechanisms - Konica Minolta 7020 Service Manual

HOME

TONER SUPPLY UNIT

[1]

Composition

Toner supply unit
[2]

Mechanisms

Mechanism
Toner supply
Toner level detection
Toner agitation *1
Toner bottle *2
Toner leak prevention
*1: Toner agitation
The toner agitator plate is powered by the toner
supply motor 1 (M4) via gears.
*2: Toner bottle
<Operation in the case of the 7020/25/30>
The toner bottle rotates while the toner bottle SD
(SD6) is ON. This rotation is driven by the toner
supply motor 1 (M4). Rotation causes the toner to
move toward the bottle outlet along the spiral
groove cut into the bottle surface.
Toner bottle
Method
Screw conveyance
Piezoelectric method:
Approx. 30g
Toner agitator plate + screw
Rotation cartridge
Toner supply shutter
Toner conveyance screw
3
<Operation in the case of the other than 7020/25/
30>
When toner supply motor 2 (M10) goes ON, the
toner bottle rotates, causing the toner to move
along the spiral groove cut in the surface of the
toner bottle to the outlet of the toner bottle.
<Common Operation>
At the outlet of the toner bottle is a toner supply
paddle which pushes the toner to the agitation/
conveyance section of the toner supply unit along
with the rotation of the toner bottle.
Toner cavity
prevention plate
Toner conveyance screw
2-H-1
TONER SUPPLY UNIT
Toner supply paddle
Toner-cavity
prevention plate
Toner supply paddle