Canon PC400 Service Manual page 4

CHAPTER 1 GENERAL DESCRIPTION
I. FEATURES ..................................1-1
II. SPECIFICATIONS .......................1-2
III. NAMES OF PARTS .....................1-4
A. External View ..........................1-4
B. Cross Section .........................1-5
IV. OPERATION ................................1-6
A. Control Panel ..........................1-6
1. PC420/430/FC220 .............1-6
2. PC400/FC200 ....................1-7
B. Making Copies ........................1-8
C. Jam Indicator.........................1-11
D. Add Paper Indicator ..............1-11
E. Replacing the Cartridge ........1-11
CHAPTER 2 BASIC OPERATION
I. BASIC OPERATION ....................2-1
A. Outline ....................................2-1
B. Outline of Electrical Circuit......2-2
C. Basic Sequence of Operations
(A4, 2 copies)..........................2-3
D. Main Motor Control Circuit ......2-5
1. Outline ...............................2-5
2. Operation ...........................2-5
3. Overcurrent Sensor ...........2-5
E. Inputs to DC Controller ...........2-6
CHAPTER 3 EXPOSURE SYSTEM
I. EXPOSURE/COPYBOARD DRIVE
SYSTEM ......................................3-1
A. Outline of Exposure System ...3-1
B. Copyboard Drive System........3-1
1. Outline ...............................3-1
2. Controlling the Copyboard
Drive ..................................3-3
3. Mechanism of Copyboard
Drive Assembly..................3-4
II. Controlling the Scanning Lamp....3-7
A. Outline ....................................3-7
B. Operations ..............................3-8
1. Turning the Scanning Lamp
COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
CONTENTS
1. Time to Replace the Cartridge
.........................................1-11
2. Replacing the Cartridge ...1-12
F. Changing the Density ...........1-14
G. Cleaning................................1-14
1. Copyboard Glass/Copyboard
Cover ...............................1-14
2. Lens Array .......................1-15
3. Pick-Up Roller..................1-16
H. When Not Using the Copier for a
Long Time .............................1-16
V. IMAGE FORMATION .................1-17
A. Outline.....................................1-17
1. Inputs to DC Controller (1/2)
...........................................2-6
2. Inputs to DC Controller (2/2)
...........................................2-7
F. Outputs from DC Controller ....2-8
1. Outputs from DC Controller
(1/2) ...................................2-8
2. Outputs from DC Controller
(2/2) ...................................2-9
ON and OFF ......................3-8
2. Controlling the Intensity of the
Scanning Lamp..................3-8
C. Controlling the Intensity of the
Scanning Lamp (VR604) ........3-8
III. MECHANICAL SYSTEM..............3-9
A. Scanning System..................3-10
1. Detaching the Scanning Lamp
Unit ..................................3-10
B. Copyboard Drive Assembly...3-11
1. Detaching the Copyboard
Drive Assembly ................3-11
iii