User Guide

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Canon Service Bulletin COPIER

Issued by Canon Europa N.V.

Location:

DOCUMENT TRAY ASSEMBLY

Subject:

Frequent Appearance of Message Prompting to Clean ADF Scanning Glass

Detail:

The following message is displayed on the LCD of the host machine in order to prompt users to clean the ADF

scanning glass, although there is no dust on the glass.

Message:

Originals may not be scanned clearly (streaks may appear). Clean the thin glass strip as shown in the illustration

with a damp, well wrung-out cloth.

<Cause>

The starting position of the image scanning in the main scanning direction when using ADF (stream reading) is

determined by the position of the original. The dust detection area is determined with reference to the scanning

starting position. Also, the position of the original is determined by the position of the side guide plates of the

ADF.

If the side guide plates are fixed at a position where the edge of the original comes close to the edge of the platen

roller, the roller edge will come in the dust detection area and finally be detected as dust.

1. RCON software of the host machine is upgraded to Ver.8.01 so that the dust detection area is changed from

301mm to 298mm.

2. The procedure for adjusting the side guide plates of the DF is changed.

Service Work:

When the above symptom occurs, upgrade the Rcon Software of the host machine to Ver.8.01, referring to the

Service Information F2-T01-0M3-10016 (System Software information for iRC6800 series).

When the upgrade still fails to remove the symptom, see the attached procedure below and adjust the horizontal

registration as well.

Model:

DADF-M1

Ref No.:

DF-168

(F3-T01-00X-10014-01)

Date:

25-06-04

PAGE 1
Canon Service Bulletin COPIER Issued by Canon Europa N.V. Model: Ref No.: DADF-M1 DF-168 (F3-T01-00X-10014-01) Date: 25-06-04 Location: DOCUMENT TRAY ASSEMBLY Subject: Frequent Appearance of Message Prompting to Clean ADF Scanning Glass Detail: The following message is displayed on the LCD of the host machine in order to prompt users to clean the ADF scanning glass, although there is no dust on the glass. Message: Originals may not be scanned clearly (streaks may appear).
PAGE 2
Horizontal Registration (Prevention of Frequent ADF reading Glass Cleaning Massage) 1. Adjusting the Side Guide Plate Position of the ADF Original Pickup Tray 1) Place an original of A3 or 11x17 on the original pickup tray. Press the Start key to run the machine. 2) Stop the machine forcibly when the original passes through the platen roller by opening the feeder cover.
PAGE 3
1) Obtain the Test Chart. 5) Make the following selections: COPIER>ADJUST>ADJ-XY>ADJ-Y-DF. Then, change the setting to make adjustments. If the Test Chart is not available, prepare one using - A higher setting will increase the margin of A, A4 or LTR paper as follows: decreasing the margin of B. 2. Making Adjustments Using the Host Machine's Service Mode (in: 0.1 m) (range: 21 to 106) 6) Make a copy of the Test Chart once again, and check to see that the image is as indicated.