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Canon LBP 2460 Service Manual - Page 121

SMT22

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CHAPTER 2 DC controller PCB Serial line Duplexing driver 1 Switchback roller release plate Switchback roller 2 345 6 SL22 Duplex deflector Fixing delivery roller SL21 PS22 PS23 PS24 7 Fixing rollers Duplex feed roller 1 PS21 89 Second-pass pick-up wait position Feed roller 2 Duplex lower guide Side registration guide SMT22 CL21 Duplex feed roller 2 Upper cassette Switchback unit SMT21 Lower cassette 1 : SIDE REGISTRATION MOTOR DRIVE signal 2 : SWITCHBACK ROLLER RELEASE SOLENOID DRIVE signal (/PRRESLD) 3 : DUPLEX DEFLECTOR SOLENOID DRIVE signal (/DUPSLD) 4 : SWITCHBACK PAPER SENSOR signal (/DUPIDS) 5 : SIDE REGISTRATION GUIDE HOME POSITION SENSOR signal (HRHGS) 6 : DUPLEX FEED ROLLER 1 HOME POSITION SENSOR signal (DRHPS) 7 : DUPLEXING UNIT PAPER SENSOR signal (/DUPPS) 8 : DUPLEX FEED CLUTCH DRIVE signal (/DUPCLD) 9 : SWITCHBACK MOTOR DRIVE signal SMT21: Switchback motor SMT22: Side registration motor SL21: Switchback roller release solenoid SL22: Duplex deflector solenoid CL21: Duplex feed cluch PS21: Duplexing unit paper sensor PS22: Switchback sensor PS23: Side registration guide home position sensor PS24: Duplex feed roller 1 home position sensor Figure 2-9-4 2 - 75

Section	Page
PREFACE	5
CONTENTS	7
CHAPTER 1	11
I. FEATURES	13
II. SPECIFICATIONS	15
III. SAFETY INFORMATION	19
IV. PARTS OF THE PRINTER	20
V. INSTALLATION	26
VI. MAINTENANCE AND SERVICING BY THE CUSTOMER	35
VII. OPERATION	37
CHAPTER 2	45
I. BASIC OPERATION	47
II. ENGINE CONTROL SYSTEM	50
III. LASER/SCANNER SYSTEM	72
IV. IMAGE FORMATION SYSTEM	78
V. PICK-UP/FEED SYSTEM	88
VI. OVERALL CONTROL SYSTEM	106
VII. OPTION CONTROL SYSTEM	110
VIII. ENVELOPE FEEDER	113
IX. DUPLEXING UNIT	117
X. PAPER DECK	127
CHAPTER 3	141
I. EXTERNALS	143
II. DRIVE SYSTEM	152
III. PAPER TRANSPORT SYSTEM	154
IV. EXPOSURE SYSTEM	163
V. ELECTROSTATIC IMAGING/DEVELOPING/CLEANING SYSTEM	164
VI. FIXING SYSTEM	166
VII. ELECTRONIC COMPONENTS	174
VIII. ENVELOPE FEEDER	181
IX. DUPLEXING UNIT	187
X. OPTION CONTROLLER	194
XI. PAPERDECK	195
CHAPTER 4	213
I. MAINTENANCE AND SERVICING	215
II. TOOLS	219
III. MEASUREMENT AND ADJUSTMENT	228
IV. INITIAL CHECK	232
V. IMAGE DEFECTS	233
VI. MALFUNCTION TROUBLESHOOTING	242
VII. PAPER FEEDING TROUBLESHOOTING	265
VIII. LOCATION OF ELECTRICAL PARTS/FUNCTION	272
IX.VARIABLE RESISTORS, LEDS, TEST PINS, JUMPERS, AND SWITCHES ON PC BOARDS	287
X. LIST OF LUBRICANTS, CLEANERS	296
APPENDIX	297
I. GENERAL TIMING CHART-1/2	299
GENERAL TIMING CHART-2/2	300
II. GENERAL CIRCUIT DIAGRAM-1/3	301
GENERAL CIRCUIT DIAGRAM-2/3	302
GENERAL CIRCUIT DIAGRAM-3/3	303