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