64-Gradations (Type=12); Full Color 16-Gradations (Type=14) - Canon imageRUNNER ADVANCE C5045 Series Service Manual

6
64-gradations(TYPE=12)
Fullcolor16-gradations(TYPE=14)
White
6

ThistestprintisformainlycheckingthegradationsofYMCBksinglecoloratonetime.
Checkitem
Gradation
Fogging
Whiteline
F-6-5 F-6-5
Thistestprintisformainlycheckingthegraybalance,gradationsofYMCBksingecolorandfogging.
Checkitem
Gradation
Fogging
Light areas
Graybalance
White
F-6-6 F-6-6

Checkmethod
Checkthat64gradationsdensityisproperlyreproduced.
Checkthatfoggingappearsonwhiteimageareaonly.
Checkthatthereisnowhitelineonentireimage.
Checkmethod
Checkthat64gradationsdensityisproperlyreproducedin
eachcolor.
Checkthatfoggingappearsonwhiteimageareaonly.
Checkthatdensityisevenineachcolorongrayscalearea.
6-6
Assumedcause
FailureofDrumUnit(endoflife)
FailureofLaserScannerUnit
FailureofDrumUnit(endoflife)
FailureofLaserScannerUnit
FailureofDevelopingAssembly
T-6-7 T-6-7
Assumedcause
FailureofDrumUnit(endoflife)
FailureofLaserScannerUnit
FailureofDrumUnit(endoflife)
FailureofLaserScannerUnit
FailureofDrumUnit(endoflife)
T-6-8 T-6-8
6-6