7-298 COPYRIGHT © 2001 CANON INC. CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONSCodeE020CauseThe descriptions are by detail code.• SALT sensor (faulty)• Stirring (developer inside devel-oping assembly; faulty)• Stray light (to sensor; no cover,front cover open)• Photosensitive drum (deteriora-tion)DescriptionToner Density Faultxx represents the color for the developingassembly.xx=01: Yxx=02: Mxx=03: Cxx=04: BkThe notations in the descriptions are asfollows:SGNL, toner density signal; REF, referencesignal.xx3A The variation of the following is 47 ormore for 5 samplings of the densitydata when sampling during copyingsequence:SGNL-S-Y, SGNL-S-M, SGNL-S-C,SGNL-S-K
