Canon printer imageCLASS MF236n User Manual

	When wiping the transparent plastic part (), take care not to bend the plastic.
Iftheproblempersists
Remove the transparent plastic part () and wipe it.
1Hold the tabs () at both ends of the transparent plastic part, and remove the plastic part by gently
lifting the rearward end  4rst.
	The plastic part () is rather damageable. When removing it, be careful not to bend it.
2Wipe the scanning area ().3Wipe the back side of the transparent plastic part.
Maintenance
593 

4Wait for the plastic part to dry completely.5Place the transparent plastic part back into position.	 Make sure of the proper orientation, then hold the tabs and place the plastic part back into position
by gently lowering the frontward end  4rst.
4Waitforthecleanedareatodrycompletely.5Gentlyclosethefeeder.6ReconnectthepowercordandturnONthemachine.Maintenance
594 

Feeder
1469-0A0
Dust and graphite powder may adhere to the roller inside the feeder and cause smudges to appear on printouts. To
clean the feeder, perform the following procedure.
1TurnOFFthemachine,andunplugthepowercordfromtheACpoweroutlet.
	 When you turn OFF the machine, data that is waiting to be printed is deleted. Fax documents that were
received by using the Memory Reception function, faxes that are waiting to be sent, and reports that are automatically printed after sending and...

FixingAssembly
1469-0A1
Dirt may adhere to the  4xing units inside the machine and cause black streaks to appear on printouts. To clean the
4xing  unit, perform the following procedure. Note that you cannot clean the  4xing unit when the machine has
documents waiting to be printed. To clean the  4xing unit, you need paper larger than plain A4 or Letter size paper. Set
the paper in the paper drawer or manual feed slot before performing the following procedure.
	 Cleaning consumes the toner...

MachineInterior
1469-0A2
Clean the interior of the machine regularly so that toner/paper dust does not collect.
1TurnOFFthemachine,andunplugthepowercordfromtheACpoweroutlet.
	 When you turn OFF the machine, data that is waiting to be printed is deleted. Fax documents that were
received by using the Memory Reception function, faxes that are waiting to be sent, and reports that are automatically printed after sending and receiving faxes are not deleted.
2Lifttheoperationpanel....

5Usingalint-freeclean,soft,drycloth,wipeawaytoner/paperdustfromtheinside.6Installthetonercartridge.
	Align the right and left projections () with the toner cartridge guides, and push securely all the way in.
7Closethetonercover,andlowertheoperationpanel.
Ifyoucannotclosethetonercover
Make sure that the toner cartridge is inserted properly. Forcing it closed may cause damage.
8ReconnectthepowercordandturnONthemachine.Maintenance
598 

ReplacingTonerCartridges
1469-0A3
The machine will display a message when a toner cartridge is nearly empty. Note that the print quality becomes poor if you continue printing without taking any action. You can check the remaining toner cartridge level on the display.
WhenaMessageAppear(P.599)
IfPrintoutsArePoorinQuality(P.600)
CheckingTonercartridgeLevel(P.600)
	C When a Message Appear
The message that is displayed depends on the amount of remaining toner cartridge. Depending on which...

	If the message is displayed when the machine is receiving a fax or automatic report output is set, received
faxes and reports will be stored in the machine so that they do not appear faded after they are printed.
	 To  continue  printing  even  if  the  toner  cartridge  is  running  low,  set   to . 
ContinuePrint.WhenNearCart.LifeEnd(P.507)
	C If Printouts Are Poor in Quality
If your printouts begin to show any of the following features, one of your toner cartridges is nearly empty. Replace...

	The displayed amount remaining in the toner cartridge can be used only as a guide and may differ
from the actual amount.
LINKS
Consumables(P.659)
Maintenance
601    

BeforeReplacingtheTonerCartridge
1469-0A4
Perform the following before replacing the toner cartridge. The message may no longer appear, or print quality may
be improved. Review cautions for handling the toner cartridge before starting. 
MaintenanceandInspections(P.9)
   
Consumables(P.10)
1Lifttheoperationpanel.
Ifyoucannotlifttheoperationpanel
Make sure the feeder is completely closed. If a thick original such as a book is placed on the platen glass, remove the original. Forcing the...