Halftone (Pg-Type 4); Gradation (Pg-Type 5); Blank (Pg-Type 6) - Canon ImageRunner 600 Service Manual

CHAPTER 13 TROUBLESHOOTING
4.

Halftone (PG-TYPE 4)

!This print consists of halftone created without passing the paper through the density correc-
tion block (image processing). The result depends entirely on the performance of the image
formation system.
5.

17-Gradation (PG-TYPE 5)

6.

Blank (PG-TYPE 6)

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COPYRIGHT © 1999 CANON INC.
Gradation
• faulty laser system
Uneven Density
• Faulty primary charging assembly
• Faulty developing system
Fogging
• faulty photosensitive drum
• faulty developing assembly
• faulty laser system
CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.