Canon CLC 1120 Service Manual page 727

CHAPTER 13 TROUBLESHOOTING
SENSOR
13-200
COPYRIGHT © 1999 CANON INC.
SGNL-M measurement of the present M developer
concentration (present value)
SGNL-C measurement of the present C developer
concentration (present value)
PT-REF-Y concentration reference signal for Y toner on the
photosensitive drum
PT-REF-M concentration reference signal for M toner on the
photosensitive drum
PT-REF-C concentration reference signal for C toner on the
photosensitive drum
PT-REF-K concentration reference signal for Bk toner on the
photosensitive drum
PT-SIG-Y concentration signal of Y toner on the photosensitive
drum (present value)
PT-SIG-M concentration signal of M toner on the photosensitive
drum (present value)
PT-SIG-C concentration signal of C toner on the photosensitive
drum (present value)
PT-SIG-K concentration signal of Bk toner on the
photosensitive drum (present value)
PT-SIG-D reflection intensity signal of the photosensitive drum
surface (present value)
PT-REF-D reflection intensity reference signal of the
photosensitive drum surface
DMAX70-Y solid concentration of Y at laser pulse width 70%
during auto gradation correction
DMAX70-M solid concentration of M at laser pulse width 70%
during auto gradation correction
DMAX70-C solid concentration of C at laser pulse width 70%
during auto gradation correction
DMAX70-K solid concentration of Bk at laser pulse width 70%
during auto gradation correction
SC-HP output of the original scanner HP sensor (PS1)
ITOP-A output of the side A sensor (PS2)
ITOP-B output of the side B sensor (PS3)
WEB fixing cleaning belt is absent
W-TONER waste toner case is full
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)