Canon imageRUNNER ADVANCE C350 series Service Manual page 519

■ 64-gradations (TYPE=12)
This test print is for mainly checking the gradations of YMCBk single color at one time.
Check item
Gradation Check that 64 gradations density is properly reproduced.
Fogging Check that fogging appears on white image area only.
White line Check that there is no white line on entire image.
6
Troubleshooting > Test Print > How to use the test print > 64-gradations (TYPE=12)
Check method
Failure of Drum Unit
Failure of Laser Scanner Unit
Failure of Drum Unit
Failure of Laser Scanner Unit
Failure of Drum Unit
6 Troubleshooting > Test Print > How to use the test print > 64-gradations (TYPE=12)
F-6-5
Assumed cause
T-6-7
6-8
6-8