COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2
OPERATION AND TIMING
I.
BASIC OPERATION ........................ 2-1
A.
Functions ................................ 2-1
B.
Electrical System .................... 2-2
C.
Main PCB Input and Output ... 2-4
D.
Document Scanning Sequence
................................................. 2-5
II.
OPTICAL SYSTEM ......................... 2-6
A.
Outline .................................... 2-6
B.
Lamp Lighting Circuit ............. 2-7
C.
FARE (Film Automatic Retouching
and Enhancement) .................. 2-9
D.
Motor Control Circuit ........... 2-11
III. IMAGE PROCESSING ................... 2-12
A.
Outline .................................. 2-12
B.
Image Processing .................. 2-12
IV.
CONTROL SYSTEM ...................... 2-17
A.
Control System Diagram ....... 2-17
B.
Main PCB ............................... 2-17
V.
INTERFACE .................................. 2-18
A.
USB ........................................ 2-18
B.
IEEE 1394 .............................. 2-19
VI. POWER SUPPLY ........................... 2-20