COPYRIGHT
2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
CONTENTS
I.
FEATURES ..................................... 1-1
II.
SPECIFICATIONS ........................... 1-2
III. EXTERIOR FEATURES .................. 1-4
A.
Front View ............................... 1-4
B.
Rear View ................................. 1-4
IV. INSTALLATION .............................. 1-5
A.
Preface ..................................... 1-5
B.
Installation .............................. 1-6
C.
Connecting to the Host Computer
................................................. 1-7
D. Scanning a Document ............ 1-8
V.
CUSTOMER’S DAILY
MAINTENANCE .............................. 1-9
CHAPTER 2 : OPERATION AND TIMING
CHAPTER 1 : GENERAL DESCRIPTIONS
I.
BASIC OPERATION ........................ 2-1
A.
Functions ................................ 2-1
B.
Outline of Electrical System .. 2-2
C.
Main PCB Input and Output ... 2-3
D. Basic Sequences ..................... 2-4
II.
OPTICAL SYSTEM ....................... 2-11
A.
Outline .................................. 2-11
B.
Document Scanning Sequence ...
............................................... 2-12
C.
Contact Image Sensor ........... 2-13
D. Drive Motor Control Circuit
............................................... 2-16
III. IMAGE PROCESSING SYSTEM ... 2-17
A.
Outline .................................. 2-17
B.
Image Processing Functions
............................................... 2-18
IV. CONTROL SYSTEM ..................... 2-20
A.
Outline .................................. 2-20
B.
Outline of USB ...................... 2-21
V.
POWER SUPPLY .......................... 2-23
CHAPTER 3 : MECHANICAL SYSTEM
I.
EXTERNALS .................................. 3-1
A.
Covers ...................................... 3-1
II.
DRIVE SYSTEM .............................. 3-5
A.
Drive Unit ................................ 3-5
B.
Drive Wire ................................ 3-8
III. OPTICAL SYSTEM ......................... 3-9
A.
Contact Image Sensor ............. 3-9
IV. ELECTRICAL SYSTEM ................ 3-11
A.
USB Connector PCB .............. 3-11
B.
Flat Cable .............................. 3-13