Canon Imageclass Mf7470 User Guide

Maintenance
10‑2

Cleaning the Machine
Note the following before cleaning your machine:
Make sure no document is stored in memory, then turn off the main power switch 
and disconnect the power cord.
Use a soft cloth to avoid scratching the components.
Do not use tissue paper, paper towels, or similar materials for cleaning; they can 
stick to the components or generate static charges.
Never use volatile liquids such as thinners, benzene, acetone, or any other chemical cleaner to clean the 
machine....

10‑3
Maintenance

Fixing Unit
If black streaks appear on the printed page, the fixing unit in the main unit may be dirty. 
Should this occur, use the Fixing Unit Cleaning function to clean the fixing unit. The fixing 
unit should also be cleaned each time the cartridge is replaced. Print the cleaning pattern 
on LTR paper for cleaning the fixing unit.
1 Press  (Additional Functions).
2 
3 
4 
The cleaning paper is printed. You will use 
this paper as the cleaning paper.
5 Open the stack bypass.
 

Maintenance
10‑4

6 Load the cleaning paper with the 
printed side facing up, inserting 
the white edge into the stack 
bypass first.
7 
① Select [LTR].
②  Press [Next].
8 
①  Select [Plain].
②  Press [OK].
9 
While the fixing unit is being cleaned, the 
screen below appears.
Cleaning the fixing unit takes 
approximately 100 seconds.
The cleaning process cannot be canceled. 
Please wait until it is completed.
The display returns to the Adjustment/
Cleaning screen.
10 
11 
The cleaning paper is printed....

10‑5
Maintenance

12 Load the cleaning paper with the 
printed side facing down, inserting 
the white edge into the stack 
bypass first.
13 Repeat steps 7 to 9 to clean the 
fixing unit.
14 Press [Done] repeatedly until the 
Basic Features screen appears.
Discard the cleaning sheets after use.
 

Maintenance
10‑6

Scanning Area
Keep the scanning area clean to avoid dirty copies or faxes to be sent.
Platen Glass and Underside of the Feeder
When cleaning the machine, first turn off the main power switch, and disconnect the power cord. Failure to 
observe these steps may result in a fire or electrical shock.
If the platen glass or the underside of the feeder is dirty, the origina\
l may not be scanned clearly, or the size of 
the original may be detected incorrectly.
Ô
1 Clean the platen glass and...

10‑7
Maintenance

Manual Feeder Cleaning
If your originals have black streaks or appear dirty after scanning them through the feeder, 
this may be caused by pencil writing rubbing off the originals and onto the roller. Perform 
this feeder cleaning procedures to clean the feeder scanning area, film, and rollers.
When cleaning the machine, first turn off the main power switch, and disconnect the power cord. Failure to 
observe these steps may result in a fire or electrical shock.
Do not dampen the cloth...

Maintenance
10‑8

5 Clean the transparent plastic part 
of the inner cover with a cloth 
dampened with water. Then wipe 
the area with a soft, dry cloth.
6 Close the inner cover.
Be careful not to get your fingers caught.
7 Close the feeder cover.
Be careful not to get your fingers caught.
8 Open the feeder.
9 Clean the feeder scanning area (A) 
and the document feeding roller 
(B), with a cloth dampened with 
water. Then wipe the area with a 
soft, dry cloth.
 

10‑9
Maintenance

10 Close the feeder.
Be careful not to get your fingers caught.
Automatic Feeder Cleaning
If your originals have black streaks or appear dirty after scanning them through the feeder, 
clean the rollers of the feeder by repeatedly feeding blank sheets of paper through it.
It takes approximately 20 seconds to clean the feeder.
Ô
1  Press  (Additional Functions).
2 
3 
 

Maintenance
10‑10

4 
① Place 10 sheets of blank LTR paper into the 
feeder, then press [OK].
While the feeder is being cleaned, the 
screen below appears.
 
5  Press [Done] repeatedly until the 
Basic Features screen appears.
 

10‑11
Maintenance

Transfer Roller
If the backside of the printed paper is smudged, the transcription roller in the main unit 
may be dirty. Should this occur, use the Transfer Roller Cleaning function to clean the 
transcription roller.
Ô
1 Press  (Additional Functions).
2 
3 
4 
While the transfer roller is being cleaned, the 
screen below appears.
 
5 Press [Done] repeatedly until the 
Basic Features screen appears.