Specifications

13-7. Sub Hopper Toner Replenishing Mechanism/Control
<Toner Replenishing Mechanism>
•
Toner is replenished from the Sub Hopper when Sub Hopper Toner
Replenishing Motor M9 at the front of the PC Unit is energized to turn
the Sub Hopper Toner Replenishing Roller.
•
The Sub Hopper Toner Replenishing Roller is made of polyurethane
foam. It supplies toner along the full length of the roller in a powder form
to the Developer Mixing Chamber. (The powdered toner makes for
improved triboelectric charge efficiency.)
•
The Sub Hopper Toner Replenishing Roller is positioned so that part A
of the housing is constantly deforming the roller. This is done so that
toner on the roller can be easily flipped off down onto the Bucket Roller
as the roller is turned.
•
The Sub Hopper Toner Conveying Screw and Sub Hopper Toner
Agitating Lever are driven by PC Drum Drive Motor M5 (see p. M-XX).
Regardless of whether M15 is energized or not, therefore, they convey
toner from the Main Hopper to the Sub Hopper, mix it, and further supply
it to the Sub Hopper Toner Replenishing Roller.
•
There is a Toner Regulator placed between the Sub Hopper Toner
Agitating Lever and Sub Hopper Toner Replenishing Roller. It limits the
amount of toner sticking to the surface of the Sub Hopper Toner
Replenishing Roller.
Sub Hopper Toner
Replenishng Roller
from Main Hopper
Sub Hopper Toner
Conveying Screw
Sub Hopper
Toner
Agitating
Level
Toner Regulator
A
1075M060AA
Sub Hopper Toner
Replenishing
Roller
M-15
M-80