How To Use The Test Print; 6 Gradations (Type=4); Full Half Tone (Type=5) - Canon imageRUNNER ADVANCE C5045 Series Service Manual

6
Howtousethetestprint
16gradations(TYPE=4)
Fullhalftone(TYPE=5)
6

Thistestprintisformainlycheckingthegradation,fogging,whitelineandunevendensityatfront&rear.
Checkitem
Gradation Checkthat16densitygradationisproperlyreproduced.
Fogging Checkthatfoggingoccursonwhiteimageareaonly.
Whiteline Checkthatwhitelinedoesnotappearonentireimage.
Unevendensityat Checkthatunevendensitydoesnotappearatfront&rear.
front&rear
F-6-1 F-6-1
Thistestprintisformainlycheckingtheblackline,whitelineandunevendensity.
MEMO:
1.Select:servicemode>COPIER>TEST>PGandspecifydevelopingcolor"COLOR-Y/M/C/K"tooutputtheprintby
developingcolor.
2.Tochangethedensityoftestprint,select:servicemode>TEST>PG>DENS-Y/M/C/Kandsetthedensity.
Checkitem
Transferfailure Checkthatthetransferfailuredoesnotappearonentireimage. FailureofITB(scratch,dirt)
Blackline Checkthatblacklinedoesnotappearonentireimage.
(colorline)
Whiteline Checkthatwhitelinedoesnotappearonentireimage.
F-6-2 F-6-2
Unevenpitch Checkthatunevenpitchdoesnotappearonentireimage.
Unevendensity Checkthatunevendensitydoesnotappearonentireimage.

Checkmethod
FailureofDrumUnit(endoflife)
FailureofLaserScannerUnit
FailureofDrumUnit(endoflife)
FailureofLaserScannerUnit
FailureofDevelopingAssembly
FailureofPhotosensitiveDrum(approx.94mm)
FailureofDevelopingCylinder(approx.63mm)
Checkmethod
FailureofPrimaryTransferRoller(scratch,dirt)
FailureofSecondaryTransferRoller(scratch,dirt)
ScratchonPhotosensitiveDrum
DirtonPrimaryChargingRoller
FailureofITBUnit
FailureofSecondaryTransferOuterRoller
Dirtonlaserlightpath
FailureofPhotosensitiveDrum(approx.94mm)
FailureofDevelopingCylinder(approx.94mm)
DirtonDustproofGlass
DeteriorationofITB
6-4
Assumedcause
T-6-3 T-6-3
Assumedcause
T-6-4 T-6-4
6-4