Canon GP605 Service Manual page 251

PICK-UP/FEEDING SYSTEM
This chapter provides descriptions on the copier's operations between pickup and
delivery, functions of each operation, relationships between electrical and
mechanical systems, and timing at which each associated part is turned on.
I. OUTLINE..................................... 7-1
A. Specifications and Construction
............................................... 7-1
B. Arrangement of Rollers and
Sensors .................................. 7-2
II. PICKUP ASSEMBLY .................. 7-3
A. Control System ...................... 7-3
B. Sequence of Operations (pickup)
............................................... 7-4
C. Controlling the Pickup Motor (M2)
............................................... 7-6
D. Movement of the Lifter ........... 7-7
E. Detecting the Cassette Paper
Size ...................................... 7-13
F. Manual Feed Tray Pickup
Assembly ............................. 7-18
III. CONTROLLING THE
REGISTRATION CLUTCH ....... 7-20
A. Outline .................................. 7-20
B. Control System .................... 7-20
C. Sequence of Operations
(registration brake) ............... 7-21
IV. MAKING DOUBLE-SIDED COPIES
.................................................. 7-22
A. Control System .................... 7-22
B. Sequence of Operations ...... 7-24
COPYRIGHT © 1999 CANON INC.
CHAPTER 7
CANON GP605/605V REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
C. Controlling the Reversal Motor
(M11) .................................... 7-25
D. Controlling the Duplexing Feeder
Motor (M12) ......................... 7-26
E. No-Stacking Operation ........ 7-27
F. Detecting the Horizontal
Registration Position ............ 7-32
V. CONTROLLING THE DELIVERY/
ASSEMBLY ............................... 7-35
A. Reversal Delivery ................. 7-35
VI. CONTROLLING THE CASSETTE
HEATER.................................... 7-36
VII. DETECTING JAMS ................... 7-38
A. Outline .................................. 7-38
B. Sequence of Operations (jam
detection) ............................. 7-40
VIII. DISASSEMBLY/ASSEMBLY .... 7-44
A. Manual Tray Assembly ........ 7-45
B. Cassette Pickup Assembly .. 7-55
C. Vertical Path Roller Assembly
............................................. 7-67
D. Registration Feeding Assembly
............................................. 7-70
E. Feeding Assembly ............... 7-74
F. Duplexing Unit ..................... 7-77