Printheads
CheckingforNozzleClogging
Ifprintingisfaintorisaffectedbystreaksindifferentcolors,makesurethePrintheadnozzlesareclearbyprinting
atestpatterntocheckthenozzles.
Note
•Youcanspecifyanumberofpagesintheprinter’sNozzleCheckmenuforautomaticnozzlechecking
everytimeyounishprintingthatquantity.(→P.47)
1.LoadunusedpaperLetter-sizedorlarger.
•LoadingRollsontheRollPaperHolder(→P.115)
•LoadingRollsintheRollFeedUnit(→P.118)
•LoadingSheetsintheCassette(→P.156)
•LoadingSheetsManually(→P.159)
2.PresstheMenubuttontodisplayMAINMENU.
3.Press◄or►toselectTestPrint,andthenpress▼.
MAINMENU
TestPrint↓
4.Press▲or▼toselectNozzleCheck,andthenpresstheOKbutton.
Theprintergoesonlineandprintsatestpattern.
5.Checktheprintingresults.
ThePrintheadLprintsthetestpatternfornozzlecheckingonthetoplineforeachcolor,andthe
PrintheadRprintsthetestpatternonthebottomline.
Ifthehorizontallinesarenotfaintorincomplete,thenozzlesareclear.
Ifsomesectionsofthehorizontallinesarefaintorincomplete,thenozzlesforthosecolors
areclogged.
Ifhorizontallinesarefaintorincomplete,followthestepsbelowandcheckagainfornozzle
clogging.
1.CleanthePrinthead.(→P.652)
2.Printatestpatterntocheckthenozzles.
Note
•Ifyourepeatthesestepsseveraltimesbutthehorizontallinesarestillfaintorincomplete,contact
yourCanondealer.
Maintenance651
