Canon NP6621 Service Manual page 56

I. Fixing/Delivery Assembly .................. 3-87
J. Detecting Jams .................................. 3-92
V. POWER SUPPLY .................................. 3-101
A. Outline of Power Distribution ........... 3-101
B. Power Supply Circuitry .................... 3-102
C. Detecting Errors on the Power Supply
PCB ................................................. 3-103
D. Protection Mechanisms for the Power
Supply Circuit .................................. 3-104
VI. SERVICE MODE ................................... 3-105
A. Outline ............................................. 3-105
B. Using Service Mode ........................ 3-105
C. Control Display Mode ('1') ............... 3-107
D. I/O Mode ('2') ................................... 3-110
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E. Adjustment Mode ('3') ..................... 3-114
F. Operation/Inspection Mode ('4') ...... 3-117
G. Machine Settings Mode ('5') ............ 3-118
H. Counter Mode ('6') ........................... 3-120
VII. SELF DIAGNOSIS ................................. 3-121
A. Copier Self Diagnosis ...................... 3-121
B. Self Diagnosis on the Cassette Feeding
Unit .................................................. 3-124
C. RDF/ADF Self Diagnosis ................. 3-125
D. Sorter Self Diagnosis ....................... 3-126
VIII. STANDARDS AND ADJUSTMENTS .... 3-127
A. Electrical .......................................... 3-127
CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)