Toshiba g00b945 Service Note

BSINo. G00B945 Page 1

BSI No.: G00B945
Publish

2000/02/29
Date:
Subject: Change of Part and Developer Agent Automatic Discharge Structure

Model: FC22

Category Field Application UNIT

Change of Parts To be applied when necessary Developer

FactoryApplication: From Mar. 2000

CONTENT

In the case of automatic discharge of the developer material, sometimes the discharge shutter
cannot be opened or closed.

C33 error (abnormality in the operation of the developer material discharge shutter)
The alignment of the gears driving the developer material discharge shutter is shallow and
occasionally the gears will jump. This countermeasure is to make the alignment normal.

This change corresponds to machines assembled from Number BA010311; those before are
not included. For machines which have not had this countermeasure applied, when a C33
error happen, using [the assembly instructions] below, carry out adjustment. However, if the
part change below is made, this adjustment is unnecessary.

[Assembly instruction]

1. Machine

If you open the front cover and remove the EPU unit, then as shown in the figure below, you will be
able to check whether the developer material discharge shutter opening and closing unit is attached
to the rear frame or not.
This unit is fixed to the upper part of the rear frame by one 3mm screw and 3 dowel diameter in one
place.

Developer material discharge
shutter opening and closing
unit

Rear frame

Rear frame

BSINo. G00B945 Page 2

Carry out adjustment as follows.