Canon printer imageCLASS MF6550 User Manual

11-4
Maintenance
10Close the left cover.
CAUTION
– Be careful not to get your fingers caught.
– If you cannot close the left cover, do not 
force it to close. Open the cover and 
make sure the toner cartridge is properly 
set in the machine.
11Reconnect the power cord and 
turn on the main power switch.
Fuser Roller
If black streaks appear with printing, the 
fuser roller in the main unit may be dirty. 
Should this occur, clean the fusing roller 
in the following procedure. The roller 
should also be...

11-5
Maintenance
4Pull out the multi-purpose tray 
extension until it clicks, then 
open it.
5Load a sheet of blank LTR paper.
6Press [ ] or [ ] to select 
, then 
press [OK].
Cleaning starts. When finished, the display 
returns to standby mode.
NOTE
– Use standard paper as the cleaning 
paper.
– Throw away the cleaning paper after use.
Scanning area
Keep the scanning area clean to avoid 
dirty copies or faxes to be sent.
●Platen glass
1Open the platen glass cover.
2Clean the platen glass and the...

11-6
Maintenance
3Close the platen glass cover.
CAUTION
Be careful not to get your fingers caught.
●ADF
If your documents have black streaks or 
appear dirty after copying them using the 
ADF, this may be caused by pencil lead 
rubbing off the documents and onto the 
roller. Clean the ADF scanning area, film, 
and roller.
1Turn off the main power switch 
and disconnect the power cord.
2Open the ADF.
3Clean the rollers (A) inside the 
ADF with a cloth dampened with 
water. Then wipe the area with a 
soft,...

11-7
Maintenance
6Lower the document feeder tray. 
CAUTION
Be careful not to get your fingers caught.
7Close the ADF.
CAUTION
 
Be careful not to get your fingers caught.
8Open the platen glass cover.
9Clean the ADF scanning area (on 
the left side of the platen glass) 
and the document feeding roller 
with a cloth dampened with 
water. Then wipe the area with a 
soft, dry cloth.
10Close the platen glass cover.
CAUTION
Be careful not to get your fingers caught.
11Reconnect the power cord and 
turn on the...

11-8
Maintenance
Cleaning the ADF Automatically
If your documents have black streaks or appear dirty after scanning them through the 
ADF, clean the ADF roller by repeatedly feeding blank sheets of paper through it.
1Press [Additional Functions].
2Press [ ] or [ ] to select , then press [OK].
3Press [ ] or [ ] to select , then press [OK].
4Load 5 sheets of blank paper into the ADF, then press [OK].
ADF cleaning starts. When finished, the display returns to standby mode.
NOTE
Use LTR paper.
04
08...

11-9
Maintenance
Transcription Roller 
If the back of the paper is smudged after printing, the transcription roller may be dirty. 
Clean the transcription roller in the following procedure.
1Press [Additional Functions].
2Press [ ] or [ ] to select , then press [OK].
3Confirm that  is displayed, then press [OK].
Cleaning starts. When finished, the display returns to standby mode.
04
08
2Address
Book
Paper
Select
COPY FAX SCAN
Image Quality Density Enlarge/ReduceOK
Two-SidedSystem
Monitor
View
Settings...

11-10
Maintenance
 
Replacing the Toner Cartridge
When the LCD displays , redistribute 
toner in the toner cartridge. If the 
message persists, replace the toner 
cartridge.
Redistributing Toner
1Open the left cover.
2Grasp the blue plastic pull tab 
(A) on the toner cartridge.
3Pull the blue plastic pull tab until 
you can easily hold the handle of 
the toner cartridge.
4Remove the toner cartridge.
CAUTION
– Always hold the toner cartridge by its 
handle.
– Do not open the drum protective shutter 
on...

11-11
Maintenance
5Gently rock the toner cartridge 5 
or 6 times to distribute toner 
evenly.
6Hold the toner cartridge by its 
handle.
The arrows (A) on the toner cartridge 
should be pointing toward the machine.
7Insert the toner cartridge into 
the machine as far as it will go.
The left edge (A) and the right side 
protrusions (B, C) of the toner cartridge 
should be aligned with the guides inside 
the machine.
8Push the toner cartridge to make 
sure it is properly set in the 
machine.
CAUTION
Do not...

11-12
Maintenance
9Close the left cover.
CAUTION
– Be careful not to get your fingers caught.
– If you cannot close the left cover, do not 
force it to close. Open the cover and 
make sure the toner cartridge is properly 
set in the machine.
Replacing the Toner 
Cartridge
1Open the left cover.
2Grasp the blue plastic pull tab 
(A) on the toner cartridge.
3Pull the blue plastic pull tab until 
you can easily hold the handle of 
the toner cartridge.
A 

11-13
Maintenance
4Remove the toner cartridge.
CAUTION
– Always hold the toner cartridge by its 
handle.
– Do not open the drum protective shutter 
on the toner cartridge. Print quality may 
deteriorate if the drum surface is 
exposed to light or is damaged.
5Remove the new toner cartridge 
from the protective material.
6Gently rock the toner cartridge 5 
or 6 times to distribute toner 
evenly.
7Remove the seals (2 places).
8Raise the blue plastic pull tab.