Canon NP6621 Service Manual

Also see for NP6621: Service manual Service handbook

Contents

Canon NP6621 Service Manual Manual pdf 292 page image

COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)A–2B. SIGNALS AND ABBREVIATIONS1. SignalsA/A* HORIZONTAL REGISTRATION / DELIVERY/ DUPLEX MOTOR PHASE AACBIAS DEVELOPING AC BIAS VOLTAGE DETECTION signalAE AE SENSOR OUTPUT signal AEAEREF AE SENSOR REFERENCE signal AEATTH AMBIENT TEMPERATURE THERMISTOR signalB/B* HORIZONTAL REGISTRATION / DELIVERY/ DUPLEX MOTOR PHASE BBIASS DEVELOPING DC BIAS VOLTAGE DETECTION signalBPWM DEVELOPING BIAS DRIVE commandBSHP BLANKING SHUTTER HOME POSITION signalBSSLD BLANKING SHUTTER SOLENOID DRIVE commandC2SZ1 CASSETTE2 SIZE 1 signalC2SZ2 CASSETTE2 SIZE 2 signalC2SZ3 CASSETTE2 SIZE 3 signalC2SZ4 CASSETTE2 SIZE 4 signalC3PD CASSETTE3 PAPER DETECTION signalC3PUCLD CASSETTE3 PICK-UP CLUTCH DRIVE commandC3SZ1 CASSETTE3 SIZE DETECTION1 signalC3SZ2 CASSETTE3 SIZE DETECTION2 signalC3SZ3 CASSETTE3 SIZE DETECTION3 signalC3SZ4 CASSETTE3 SIZE DETECTION4 signalC3VPD CASSETTE3 VERTICAL PATH PAPER DETECTION signalC4PD/C5PD CASSETTE4/5 PAPER DETECTION 1 signalC4PUCLD/C5PUCLD CASSETTE4/5 PICK-UP CLUTCH DRIVE commandC4SZ1/C5SZ1 CASSETTE4/5 SIZE DETECTION 1 signalC4SZ2/C5SZ2 CASSETTE4/5 SIZE DETECTION 2 signalC4SZ3/C5SZ3 CASSETTE4/5 SIZE DETECTION 3 signalC4SZ4/C5SZ4 CASSETTE4/5 SIZE DETECTION 4 signalC4VPD CASSETTE4 VERTICAL PAPER DETECTION 1 signalC5VPD CASSETTE5 VERTICAL PAPER DETECTION 1 signalCCD CONTROL CARD DRIVE commandCCDT CONTROL CARD DETECTION signalCDC COPY DENSITY CORRECTION signalCHSLD CHANGE SOLENOID DRIVE commandCL1D DECK PICK-UP ROLLER CLUTCH DRIVE commandCL2D DECK VERTICAL PATH ROLLER CLUTCH DRIVE commandCL3D VERTICAL PATH ROLLER 3 CLUTCH DRIVE commandCL4D DECK LIFTER CLUTCH DRIVE commandCL5D CASSETTE2 PICK-UP CLUTCH DRIVE commandCL6D DUPLE XING UNIT HORIZONTAL REGISTRATION ROLLER CLUTCH DRIVE commandCL7D VERTICAL PATH ROLLER CLUTCH DRIVE commandCMA/CMA* CASSETTE UNIT MOTOR PULSE command A/A*CMB/CMB* CASSETTE UNIT MOTOR PULSE command B/B*COMA HORIZONTAL REGISTRATION / DELIVERY/ DUPLEX MOTOR COMMON A signalCOMB HORIZONTAL REGISTRATION / DELIVERY/ DUPLEX MOTOR COMMON B signalCPD1 CASSETTE PAPER1 DETECTION signalCPD2 CASSETTE PAPER2 DETECTION signalCRDOP CASSETTE RIGHT DOOR OPEN DETECTION signalCS CASSETTE SIZE DETECTION commandCS2 CASSETTE SIZE DETECTION2 commandCS3 CASSETTE SIZE DETECTION3 commandCS4 CASSETTE SIZE DETECTION4 commandCS4PD CASSETTE4 PAPER DETECTION signalCSZ1 CASSETTE SIZE signal 1CSZ2 CASSETTE SIZE signal 2CSZ3 CASSETTE SIZE signal 3CSZ4 CASSETTE SIZE signal 4CVOP CCPYBOARD COVER OPEN signalDEL DECK LIFTER LIMIT signalDEOP DECK OPEN signalDEPRL DECK PICK-UP ROLLER RELEASE SOLENOID DRIVE commandDLD DECK LIFTER POSITION DETECTION signalDPD DELIVERY DETECTION signalDUEX DUPLEX PAPER EXIT DETECTION signalDUIN DUPLEX PAPER INLET DETECTION saignalDUPD DUPLEXING UNIT PRE-REGISTRATION PAPER DETECTION signalDURG DUPLEX REGISTRATION PAPER DETECTION signalDVRPD DECK VERTICAL ROLLER PAPER DETECTION signalEHTRL EARTH RL DRIVE command RL2FDFD FEEDING FAN DRIVE signalFFA/FFA* FUSER FILM MOTOR PULSE command A/A*FFB/FFB* FUSER FILM MOTOR PULSE command B/B*FFCB/FFCA FUSER FILM MOTOR VOLTAGE command A/BFFD FIXING FILM POSITION signalFLHTOFF FLUORESCENT LAMP HEATER OFF commandFLON FLUORESCENT LAMP ON commandFLPRHT FLUORESCENT LAMP PRE-HEAT commandFLS FLUORESCENT LAMP INTENSITY signalFLTH FLUORESCENT LAMP THERMISTOR signalFLTHON FLUORESCENT LAMP HEATER ON commandFMD FUSER FILM MOTOR DRIVE commandHEFD HEATER EXHAUST FAN DRIVE commandHTON HEATER ON DETECTION signalHTRD HEATER DRIVE commandJCTL DISCHARGE BIAS DRIVE commandJLVCTL DISCHARGE BIAS CHARGE commandLHP LENS HOME POSITION DETECTION signalLID LIGHT INTENSITY signalLNSA/LNSA* LENS MOTOR PULSE command A/A*LNSB/LNSB* LENS MOTOR PULSE command B/B*LNSCA LENS MOTOR DRIVE command ALNSCB LENS MOTOR DRIVE command BLOCK PEDESTAL MOTOR ERROR signalMFPD MULTIFEEDER PAPER DETECTION signalMFPUCLD MULTIFEEDER PICK-UP CLUTCH DRIVE commandMFPWD MULTIFEEDER PAPER WIDTH DETECTION signalMFSLD MULTIFEEDER SOLENOID DRIVE commandMLOCK MAIN MOTOR SPEED STATUS signalMMD MAIN MOTOR DRIVE signalMMCLK MAIN MOTOR CLOCK signalMPWN MAIN PULSE commandPCLSLD PRIMARY CORONA ROLLER CLEANING SOLENOID commandPCTRLS PRIMARY CORONA DETECT PULSE commandPCURS PRIMARY CORONA CURRENT BUFFER signalPDCS PRIMARY CORONA DETECT commandPEDMD PEDESTAL MOTOR DRIVE commandPEXD PRE-EXPOSURE LAMP LIT commandPUCLD1 CASSETTE1 PICK-UP CLUTCH DRIVE command