Canon printer imageCLASS MF4370dn User Manual

							
10-8
Maintenance 
Cleaning the Machine
 ADF (For MF4370dn/MF4350d) 
 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 
and roller. 
 1 
Turn OFF the main power switch and 
disconnect the power cord. 
 2 
Open the ADF cover. 
  
 3 
Clean the rollers (A) inside the ADF with a 
cloth dampened with water. Then wipe 
the area with a soft, dry cloth. 
  
Do not dampen the cloth too much, as this may 
tear the document or damage the machine.
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 4 
Close the ADF cover. 
  
Be careful not to get your fingers caught.
 5 
Reconnect the power cord and turn ON 
the main power switch.  
  
   
						

							
10-9
Maintenance 
  Replacing  the  Toner  Cartridge   
    Rep la cin g t h e T o n er C artr id geReplacing the Toner Cartridge
This section describes how to replace or handle the toner cartridges and precautions on 
storing them.
  W hen  a  M essa g e A pp earsWhen a Message Appears
Toner cartridges are consumable products. If the toner is running low or out during printing, a message 
appears in the display.
Message When it is Displayed Contents and Remedies
TONER LOW
PREPARE NEW TONER The toner is running low. Distribute toner in the toner 
cartridge. (See “Redistributing 
Toner,” on p. 10-10.)
It is recommended that you replace 
the toner cartridge before printing 
a large amount of data. (See 
“Replacing the Toner Cartridge with 
a New One,” on p. 10-12.)
–
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OUT OF TONER
CHANGE TONER The toner is running out. Distribute toner in the toner 
cartridge.
If the message persists, replace the 
toner cartridge. (See “Replacing the 
Toner Cartridge with a New One,” 
on p. 10-12.)
–
–
 
   
						

							
10-10
Maintenance 
Replacing the Toner Cartridge
          Red is tr ib utin g T o n er Redistributing Toner 
 When the toner is running low, the message 
 appears on 
the display, redistribute toner in the toner cartridge. 
We recommend that you prepare a new toner 
cartridge for future replacement with ease. 
   Do not touch the rollers and parts which have labels “CAUTION! 
Hot surface avoid contact” on. They become very hot during 
use. 
    When  is set to , the printed 
documents may be light or blurred because of lack of toner. The 
data is erased when the documents are printed out, so you can 
not print the same documents again. (See “FAX SETTINGS,” on 
p. 12-5.)  
 1 
Hold the front side of the operation panel 
with your hands. 
  
 2 
Lift the scanning platform (A) until it is 
locked. (You will hear an audible “click.”) 
  
 3 
Hold the grip (A) on the right front side of 
the toner cover. 
  
 4 
Open the toner cover. 
  
 5 
Remove the toner cartridge. 
  
Do not touch the rollers and parts which have 
labels “CAUTION! Hot surface avoid contact” on. 
They become very hot during use. 
						

							
10-11
Maintenance 
Replacing the Toner Cartridge
 6 
Gently rock the toner cartridge several 
times to evenly distribute toner inside. 
  
 7 
Hold the toner cartridge by its handle (A). 
  
Do not open the drum protective shutter (A) on 
the toner cartridge. Print quality may deteriorate if 
the drum surface is exposed to light or is 
damaged.
Always hold the toner cartridge by its handle.
 8 
Insert the toner cartridge so that the 
protrusion (A) on the right side of the 
toner cartridge fits into the guide (B) 
located on the right side of the machine 
and slide it down parallel to the guide. 



 9 
Push the toner cartridge to make sure it is 
properly set in the machine. 
 
 
  1010
  Hold the grip (A) on the right front side of 
the toner cover. 
   
						

							
10-12
Maintenance 
Replacing the Toner Cartridge
  1111
  Close the toner cover. 
  
  1212
  Lower the scanning platform. 
  
Be careful not to get your fingers caught.
If you cannot close the toner cover, do not force 
it to close. Open the cover and make sure the 
toner cartridge is properly set in the machine.
–
–
          R
ep la cin g t h e T o n er C artr id ge w it h  Replacing the Toner Cartridge with 
a N ew  O ne a New One 
 When the message  appears, replace the toner cartridge with a 
new one. 
  When toner empty error occurs while receiving fax, 
printing fax is interrupted and the received data will 
be stored in the memory. If you set  to , you can keep printing fax 
documents or reports without replacing the toner 
cartridge. (See “FAX SETTINGS,” on p. 12-5.)  
   Do not touch the rollers and parts which have labels “CAUTION! 
Hot surface avoid contact” on. They become very hot during 
use. 
    When  is set to , the printed 
documents may be light or blurred because of lack of toner. 
The data is erased when the documents are printed out, so 
you can not print the same documents again. (See “FAX 
SETTINGS,” on p. 12-5.) 
 If the toner gauge indicates that the toner is empty, replace 
the toner cartridge. (See “Checking the Toner Level,” on p. 1-
12.)  
 1 
Hold the front side of the operation panel 
with your hands. 
  
–
– 
						

							
10-13
Maintenance 
Replacing the Toner Cartridge
 2 
Lift the scanning platform (A) until it is 
locked. (You will hear an audible “click.”) 
  
 3 
Hold the grip (A) on the right front side of 
the toner cover. 
  
 4 
Open the toner cover. 
  
 5 
Remove the toner cartridge. 
  
Do not touch the rollers and parts which have 
labels “CAUTION! Hot surface avoid contact” on. 
They become very hot during use. 
						

							
10-14
Maintenance 
Replacing the Toner Cartridge
 6 
Take out the new toner cartridge from the 
protective bag. 
  
Do not open the drum protective shutter (A). Print 
quality may deteriorate if the drum surface is 
exposed to light or is damaged.
Save the protective bag. You may need it later 
when you remove the toner cartridge from the 
machine.
 7 
Gently rock the toner cartridge several 
times to evenly distribute toner inside. 
  
 8 
Place the toner cartridge on a flat surface 
and pull the seal completely out. 
  
Do not pull the seal out at an angle.
If toner is adhered on the removed seal, be 
careful that your hands or clothes do not get 
dirty from touching the toner.
If your hands or clothes get dirty from touching 
the toner, wash them immediately in cold 
water. Do not use hot water. If you do, the toner 
may be set permanently.–
– 
						

							
10-15
Maintenance 
Replacing the Toner Cartridge
 9 
Hold the toner cartridge by its handle (A). 
  
Do not open the drum protective shutter (A) on 
the toner cartridge. Print quality may deteriorate if 
the drum surface is exposed to light or is 
damaged.
Always hold the toner cartridge by its handle.
  1010
  Insert the toner cartridge so that the 
protrusion (A) on the right side of the 
toner cartridge fits into the guide (B) 
located on the right side of the machine 
and slide it down parallel to the guide. 



  1111
  Push the toner cartridge to make sure it is 
properly set in the machine. 
 
 
  1212
  Hold the grip (A) on the right front side of 
the toner cover. 
   
						

							
10-16
Maintenance 
Replacing the Toner Cartridge
  1313
  Close the toner cover. 
  
  1414
  Lower the scanning platform. 
  
Be careful not to get your fingers caught.
If you cannot close the toner cover, do not force 
it to close. Open the cover and make sure the 
toner cartridge is properly set in the machine.
–
– 
						

							
10-17
Maintenance 
  Recycling  Used  Cartridges  
   Recy clin g U se d  C artr id ges  Recycling Used Cartridges 
Canon has instituted a worldwide recycling program for cartridges called 
“The Clean Earth Campaign”. This program preserves precious natural 
resources by utilizing a variety of materials found in the used cartridges 
that are of no further use, to remanufacture new cartridges which, at the 
same time, keeps the environment cleaner by reducing landfill waste. 
Complete details concerning this program are enclosed in each Cartridge 
box.
 T h e C le an  E arth  C am paig n  -  T h e C an on  C artr id ge R etu rn  P ro g ra m   The Clean Earth Campaign - The Canon Cartridge Return Program 
 The Canon Cartridge Return Program fulfills the first initiative of Canon’s Clean Earth Campaign, which 
supports four critical environmental areas: 
  
 Recycling in the Workplace 
 Conserving Environmental Resources 
 Scientific Research and Education 
 Encouraging Appreciation of the Outdoors 
  
 “Clean Earth” initiatives supported by Canon in the U.S. include Eyes on Yellowstone, Canon Envirothon, 
NATURE Series on PBS and The Canon Clean Earth Crew. Initiatives supported in Canada include Canon 
Envirothon and World Wildlife Fund - Canada. 
  
 Since its inception, The Canon Cartridge Return Program has collected millions of cartridges that otherwise 
would have been discarded into landfills or similar facilities. Instead, this rapidly growing program recovers 
used cartridges and separates them into components which are then put to various industrial uses. 
  
 Becoming a part of this worthwhile program is easy. When your cartridge is of no further use, simply follow 
the instructions detailed for U.S. or Canadian residents. 
  
 We appreciate your support of The Canon Cartridge Return Program. 
  
 Working together we can make a significant contribution to a cleaner planet. 
    Cartridges collected through this program are not refilled. 
 This program may be modified or discontinued without notice. 
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