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CHAPTER 13 TROUBLESHOOTING
13-244
COPYRIGHT
©
1999 CANON INC. CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.
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)
Gradation
• faulty laser system
Uneven Density
• Faulty primary charging assembly
• Faulty developing system
Fogging
• faulty photosensitive drum
• faulty developing assembly
• faulty laser system