Canon NP6330 Service Manual page 341

TROUBLESHOOTING
This chapter describes the maintenance, checks, standards, adjustment,
troubleshooting for image fault, operation fault and feeding fault of this copier, electrical
component arrangement, their roles, service mode and self-diagnosis.
I. MAINTENANCE AND
INSPECTION....................................11-3
A. Image Adjustment Basic
Procedure ....................................11-3
B. Points to Note for Scheduled
Servicing ......................................11-5
II. STANDARDS AND
ADJUSTMENTS ...............................11-7
A. Adjusting the Images ...................11-7
B. Exposure System.........................11-22
C. Image Formation System.............11-29
D. Pick-Up / Feeding System ...........11-34
E. Fixing System ..............................11-40
F. Electrical System .........................11-43
III. TROUBLESHOOTING IMAGE
FAULTS ............................................11-53
A. Making Initial Checks ...................11-53
B. Image Fault Samples ...................11-56
C. Troubleshooting Faulty Images....11-57
IV. TROUBLESHOOTING
MALFUNCTIONS .............................11-73
A. Troubleshooting Malfunctions ......11-73
B. Troubleshooting Malfunctions in
the Pedestal .................................11-102
V. TROUBLESHOOTING FEEDING
FAULTS ............................................11-107
A. Copy Paper Jams ........................11-107
B. Troubleshooting Feeding Faults ..11-112
COPYRIGHT © 1997 CANON INC.
CHAPTER 11
CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
VI. ARRANGEMENT AND
FUNCTIONS OF THE
ELECTRICAL PARTS.......................11-113
A. Sensors ........................................11-114
B. Switches, clutches, and
solenoids ......................................11-116
C. Heaters, lamps, and motors.........11-118
D. PCBs ............................................11-120
E. Paper deck pedestaL-M1.............11-122
F. Variable Resistors, Light-Emitting
Diodes, and Check pins by PCB .11-124
VII. SERVICE MODE ..............................11-129
A. Outline..........................................11-129
B. Using Service Mode.....................11-130
C. Using Adjustment Mode and
Optional / Setting Mode ...............11-131
D. Control/Display Mode [1] .............11-132
E. I/0 Display Mode [2] .....................11-147
F. Adjustment Mode [3] ....................11-171
G. Function Mode [4] ........................11-173
H. Optional Settings Mode [5] ..........11-175
I. Counter Mode [6] .........................11-177
VIII. SELF DIAGNOSIS............................11-179
A. Copier ..........................................11-179
B. Pedestal Self Diagnosis ...............11-183
C. RDF/ADF Self Diagnosis .............11-184
D. Sorter Self Diagnosis ...................11-185