B. RDF-D1COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 11 TROUBLESHOOTING11-264Code Cause• Data communication (with copier)• Pick-up roller sensor (S8, S21; fault)• Pick-up motor (M1; fault)• Pick-up clutch (CL1; fault)• Belt motor clock sensor (S11; fault)• Belt motor (M3; fault)• Reversing motor clock sensor (S10;fault)• Reversing motor (M2; fault)• Delivery motor clock sensor (S12;fault)• Delivery motor (M5; fault)• Pick-up motor clock sensor (S9;fault)• Pick-up motor (M1; fault)• Original stopper motor (M7; fault)• Stopper home position sensor (S26;fault)• Motor (out of order)• Tray trailing edge sensor (lowperformance)• Original tray ascent motor (M6;fauly)• Tray position sensor (S25; fault)• Feeding motor clock sensor (S22;fault)• Feeding motor (M8; fault)• Registration sensor 1 (S3; fault)• Skew sensor 1 (S4; fault)• Manual feed registration sensor(S19; fault)• Image leading edge sensor 1 (S20;fault)• Original sensor 1 (S1; fault)• Original sensor 2 (S27; fault)Description• The communication is monitored atall times. The error occurs whenthere is an interruption for 5 sec.• Initialization does not end in 2 sec.(The flat face of the pick-up roller/D-cut roller is at top, and is at homeposition.)• The number of belt motor clockpulses within 100 msec is less thanspecified.• The number of reversal motor clockpulses within 100 msec is less thanspecified.• The number of delivery motor clockpulses within 200 msec is less thanspecified.• The number of pick-up motor clockpulses within 200 msec is less thanspecified.• The guide shift by the originalstopper motor does not end within aspecific period of time.• The sensor output does not changewhen the original stopper motor hasbeen driven for 2 sec or more.• The tray shift by the original trayascent motor does not end within aspecific period of time.• The number of feeding motor clockpulses within 100 msec is less thanspecified.The sensor output is 2.3 V or more inthe absence of paper.E400E401E402E403E404E407E408E406E405E411Download service manual and resetter printer at http://printer1.blogspot.com