Canon iR5800C, iR5800CN, iRC6800C, iRC6800CN ir6800c-005

Canon Service Bulletin COPIER

Issued by Canon Europa N.V.

Model:
iR6800C

iR6800CN

Location:

INTERMEDIATE TRANSFER BELT ASSEMBLY

Subject:

Abnormal buzzing sound occurring from Intermediate Transfer Belt Assembly

Detail :

<Symptom>
Abnormal buzzing sound occurs from the Intermediate Transfer Belt Assembly (FM2-0407).
<Cause>
When the edge of the Internal Scraper (FL2-0398) of the Interm ediate Transfer Belt assembly is subject to
adhesion of rubber residues of the rubber rollers, such as the Secondary Transfer Roller, there is an increase in
the sliding frictional resistance between the Internal Scraper and the Transfer Belt, causing the scraper holder
to vibrate. When the vibrating scraper holder comes into contact with the frame, a rustle occurs, leading to
abnormal buzzing sound.

Ref No.:

iR6800C-005
(F2-T01-0M3-10011-01)

Date:

30-04-04

(1/3)

F-1

iR6800C-005

P-1 Intermediate Transfer Belt Assembly P-2 Intermediate Transfer Belt Assembly (with the Internal Scraper

removed)

[1] Internal Scraper [2] Points where the scraper holder comes into contact with the frame

<Factory Measure>
A double-sided tape is applied to the points where the internal scraper holder comes into contact with the frame,
so that the holder will be securely attached to the frame. This measure can prevent such vibrations of the holder
as will cause an abnormal sound.

Service Work :

When the above symptom occurs, take the following measure:

1. Remove the Intermediate Transfer Belt Assembly from the main body.

2. Remove the Internal Scraper from the Intermediate Transfer Belt Assembly, and clean it.

3. Apply a double-sided tape (20mm wide; 0.14-0.16mm thick) to the internal scraper holder, as shown below.
Ensure that there is no empty space or extension of the tape at the edge of holder.

4. Release the other side of the double-sided tape, and attach the Internal Scraper.

(2/3)