Canon CANOSCAN FB330 series User manual

COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
SERIES
OCT. 1999 JY8-1315-000
REVISION 0
SERVICE
MANUAL

COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
COPYRIGHT © 1999 CANON INC.
Printed in Japan
Imprimè au Japon
Use of this manual should be strictly supervised
to avoid disclosure of confidential information.

COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CanoScan FB330P F91-3511-200 AZA000000-
F91-3521-200 MZA000000-
F91-3541-200 DZA000000-
F91-3551-200 EZA000000-
F91-3561-200 FZA000000-
F91-3571-200 LZA000000-
F91-3581-200 JZA000000-
F91-3589-200 RZA000000-
F91-3591-200 KZA000000-
CanoScan FB630P F91-3611-100 AZB000000-
F91-3631-100 CZB000000-
F91-3641-100 DZB000000-
F91-3651-100 EZB000000-
F91-3661-100 FZB000000-
F91-3671-100 LZB000000-
F91-3611-200 AZC000000-
F91-3621-200 MZC000000-
F91-3631-200 CZC000000-
F91-3641-200 DZC000000-
F91-3651-200 EZC000000-
F91-3661-200 FZC000000-
F91-3671-200 LZC000000-
F91-3681-200 JZC000000-
F91-3689-200 RZC000000-
F91-3691-200 KZC000000-
CanoScan FB630U F91-3831-100 CZD000000-
F91-3841-100 DZD000000-
F91-3861-100 FZD000000-
F91-3871-100 LZD000000-
CanoScan FB636U F91-3812-100 AZE000000-
F91-3842-100 DZE000000-
F91-3872-100 LZE000000-
F91-3882-100 JZE000000-
F91-3892-100 KZE000000-
LIST OF SERIAL NUMBER

COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
PREFACE
This service manual contains the basic information necessary for servicing the FB330P/
FB630P/FB630U/FB636U image scanners.
The service manual consists of the following chapters.
Chapter 1: General Descriptions
Features, specifications, exterior features, installation, customer’s daily
maintenance
Chapter 2: Operation and Timing
Basic operation, optical system, image processing system, control system,
power supply
Chapter 3: Mechanical System
Externals, drive system, optical system, PCB
Chapter 4: Maintenance and Servicing
Periodical replacement parts, consumable parts durability, periodical
servicing, special tools, solvents and lubricants
Chapter 5: Troubleshooting
Introduction, troubleshooting, location of electrical parts, canon scanner test
Chapter 6: Parts Catalog
Appendix: General circuit diagram, main PCB circuit diagram
The information in this service manual is subject to change as the product is improved.
All relevant information in such cases will be provided by the service information bulletins.
A thorough understanding of the FB330P/FB630P/FB630U/FB636U, based on the service
manual and service information bulletins, is vital to the serviceman in maintaining the product
quality and performance, and in locating and repairing the cause of malfunctions.

COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CONTENTS
I. FEATURES ..................................... 1-1
II. SPECIFICATIONS ........................... 1-2
III. EXTERIOR FEATURES .................. 1-5
A. Front View ............................... 1-5
B. Rear View ................................. 1-5
IV. INSTALLATION .............................. 1-7
A. Preface ..................................... 1-7
B. Installation .............................. 1-8
C. Connecting to the Host
Computer ................................ 1-9
D. Scanning a Document........... 1-12
V. CUSTOMER’S DAILY MAINTENANCE .
............................................... 1-13
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 ... 2-4
D. Basic Sequences of CanoScan
FB330P/FB63OP ...................... 2-6
E. Basic Sequences of CanoScan
FB630U/FB636U ................... 2-19
II. OPTICAL SYSTEM ....................... 2-26
A. Outline .................................. 2-26
B. CanoScan FB330P/FB630P
Document Scanning Sequence
............................................... 2-27
C. CanoScan FB630U/FB636U
Document Scanning Sequence
............................................... 2-28
D. Contact Image Sensor ........... 2-29
E. Scanning Unit Drive Motor
Control Circuit ...................... 2-32
III. IMAGE PROCESSING SYSTEM .... 2-33
A. Outline .................................. 2-33
B. Image Processing
Functions .............................. 2-34
IV. CONTROL SYSTEM ..................... 2-38
A. CanoScan
FB330P/FB630P ..................... 2-38
B. CanoScan
FB630U/FB636U .................... 2-40
V. POWER SUPPLY ........................... 2-42
A. CanoScan
FB330P/FB630P ..................... 2-42
B. CanoScan
FB630U/FB636U .................... 2-43

COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
I. INTRODUCTION ............................. 5-1
A. Initial Check ............................ 5-1
B. Others ...................................... 5-1
II. TROUBLESHOOTING ..................... 5-2
A. Troubleshooting Image
Defects .................................... 5-2
B. Troubleshooting
Malfunctions ........................... 5-3
III. LOCATION OF ELECTRICAL
PARTS ............................................ 5-4
IV. CANON SCANNER TEST ................ 5-6
A. Outline .................................... 5-6
B. Canon Scanner Test for
CanoScan FB330P/FB630P ..... 5-6
C. Canon Scanner Test USB for
CanoScan FB630U/FB636U
............................................... 5-12
CHAPTER 5 : TROUBLESHOOTING
CHAPTER 4 : MAINTENANCE AND SERVICING
I. PERIODICAL REPLACEMENT
PARTS ............................................ 4-1
II. CONSUMABLE PARTS
DURABILITY .................................. 4-1
III. PERIODICAL SERVICING .............. 4-1
IV. SPECIAL TOOLS ............................ 4-1
V. SOLVENTS AND LUBRICANTS ...... 4-1
CHAPTER 3 : MECHANICAL SYSTEM
I. EXTERNALS .................................. 3-1
A. Covers ...................................... 3-1
II. DRIVE SYSTEM .............................. 3-7
A. Scanning Unit Drive Part ........ 3-7
III. OPTICAL SYSTEM ....................... 3-11
A. Contact Image Sensor ........... 3-11
IV. PCB .............................................. 3-15
A. Main PCB ............................... 3-15
B. Button PCB ........................... 3-17
CHAPTER 6 : PARTS CATALOG
CanoScan FB330P/CanoScanFB630P
................................................. 6-1
CanoScan FB630U/CanoScan FB636U
................................................. 6-7

COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
APPENDIX
I. GENERAL CIRCUIT DIAGRAM
(CanoScan FB330P/FB630P) ......... A-1
II. GENERAL CIRCUIT DIAGRAM
(CanoScan FB630U/FB636U) ........ A-2
III. MAIN PCB CIRCUIT DIAGRAM
(CanoScan FB330P) ...................... A-3
IV. MAIN PCB CIRCUIT DIAGRAM
(CanoScan FB630P) ...................... A-8
V. MAIN PCB CIRCUIT DIAGRAM
(CanoScan FB630U/FB636U) ...... A-13

COPYRIGHT © 1999 CANON INC. CANON CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 1
GENERAL DESCRIPTIONS
I. FEATURES ....................................... 1-1
II. SPECIFICATIONS ............................ 1-2
III. EXTERIOR FEATURES .................... 1-5
IV. INSTALLATION ......................... 1-7
V. CUSTOMER’S DAILY
MAINTENANCE ....................... 1-13

CHAPTER 1
1 - 1
COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
I. FEATURES
CanoScan FB330P (hereafter FB330P) with 300 x 600 dpi resolution, CanoScan FB630P
(hereafter FB630P) and CanoScan FB630U/FB636U (hereafter FB630U/FB636U) with 600 x
1200 dpi resolution are flatbed image scanners incorporating the following features.
1. High gradation and high image quality are achieved by employing a highly sensitive contact
image sensor with LIDE (LED Indirect Exposure) technology for the reading unit, and by
reading each RGB color by 12 bit and outputting by 8 bit.
2. The scanner is a small size of 256.0(W) x 372.5(D) x 39.0(H) mm, and a light weight of 1.5
kg by using a downsized scanning unit.
3. The scanner can easily be connected to the host computer through a parallel interface
(FB330P/FB630P) or a USB interface (FB630U/FB636U).
4. The scanner can be placed vertically to scan by using an optional stand.
5. CanoScan FB630U/FB636U draws its power from USB port on the host computer requiring
no AC adapter.

CHAPTER 1
1 - 2
COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
II. SPECIFICATIONS
CanoScan FB330P
MAIN UNIT
· Type : Flat bed image scanner
READING UNIT
· Image sensor : 2552 pixels contact image sensor
· Light source : LED indirect exposure (RGB each)
· Max. document size : A4 or Letter (216 x 297 mm)
· Image output : RGB 8 bits per channel (input 12 bits)
· Resolution : 300 x 600 dpi
· Scan time : 60 sec. (color, A4, 300 dpi)
20 sec. (grayscale, A4, 300 dpi)
· Resolution conversion : 75/150/300 dpi (Horizontal)
75/150/300/600 dpi (Vertical)
· Cropping area : A rectangular frame can be specified.
INTERFACE
· Interface : Parallel interface (IEEE-1284/ECP)/1 male and 1
female
Power terminal for AC adapter
OTHERS
· Operating environment : Temperature range, 5 to 35ºC
Humidity range, 10 to 90%
Air pressure range, 613 to 1013 hPa
· Power consumption : 5.0 W (during operation), 2.5 W (during standby)
· Dimensions : 256.0(W) x 372.5(D) x 39.0(H) mm
· Weight : 1.5 kg

CHAPTER 1
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COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CanoScan FB630P
MAIN UNIT
· Type : Flat bed image scanner
READING UNIT
· Image sensor : 5152 pixels contact image sensor
· Light source : LED indirect exposure (RGB each)
· Max. document size : A4 or Letter (216 x 297 mm)
· Image output : RGB 8 bits per channel (input 12 bits)
· Resolution : 600 x 1200 dpi
· Scan time : 120 sec. (color, A4, 600 dpi)
40 sec. (grayscale, A4, 600 dpi)
· Resolution conversion : 75/150/300/600 dpi (Horizontal)
75/150/300/600/1200 dpi (Vertical)
· Cropping area : A rectangular frame can be specified.
INTERFACE
· Interface : Parallel interface (IEEE-1284/ECP)/1 male and 1
female
Power terminal for AC adapter
OTHERS
· Operating environment : Temperature range, 5 to 35ºC
Humidity range, 10 to 90%
Air pressure range, 613 to 1013 hPa
· Power consumption : 5.0 W (during operation), 2.5 W (during standby)
· Dimensions : 256.0(W) x 372.5(D) x 39.0(H) mm
· Weight : 1.5 kg

CHAPTER 1
1 - 4
COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CanoScan FB630U/FB636U
MAIN UNIT
· Type : Flat bed image scanner
READING UNIT
· Image sensor : 5152 pixels contact image sensor
· Light source : LED indirect exposure (RGB each)
· Max. document size : A4 or Letter (216 x 297 mm)
· Image output : RGB 8 bits per channel (input 12 bits)
· Resolution : 600 x 1200 dpi
· Scan time : 120 sec. (color, A4, 600 dpi)
40 sec. (grayscale, A4, 600 dpi)
· Resolution conversion : 75/150/300/600 dpi (Horizontal)
75/150/300/600/1200 dpi (Vertical)
· Cropping area : A rectangular frame can be specified.
INTERFACE
· Interface : USB interface (B plug) x 1
OTHERS
· Operating environment : Temperature range, 5 to 35ºC
Humidity range, 10 to 90%
Air pressure range, 613 to 1013 hPa
· Power consumption : 5.0 W (during operation), 2.5 W (during standby)
· Dimensions : 256.0(W) x 372.5(D) x 39.0(H) mm
· Weight : 1.5 kg
Specifications are subject to change with product improvement.

CHAPTER 1
1 - 5
COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
III. EXTERIOR FEATURES
CanoScan FB330P/FB630P
A. Front View
Figure 1-1
B. Rear View
Figure 1-2
III. EXTERIOR FEATURES
q Document Cover
w Document Glass
e Alignment Mark
r Lock Switch
A4LTR
B5
A4
LTR
B5
1
2
3
4
q Power Terminal
w PC Port
e Printer Port
1
2
3

CHAPTER 1
1 - 6
COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CanoScan FB630U/FB636U
A. Front View
Figure 1-3
B. Rear View
Figure 1-4
q Document Cover
w Document Glass
e Alignment Mark
r Start Button
t Lock Switch
q USB Port
A4LTR
B5
A4
LTR
B5
1
2
3
5
4
1

CHAPTER 1
1 - 7
COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
IV. INSTALLATION
A. Preface
The following installation conditions are required.
1. Ambient temperature should be between 5½C and 35½C, and humidity between 10% and
90%. Avoid locations near water faucets, boilers, humidifiers, or refrigerators.
2. Avoid locations subject to open flame, dust, or direct sunlight. If it is installed near a
window, hang a curtain to block direct sunlight.
3. The room should be well ventilated.
4. Install on a sturdy and level desk, etc.
5. Moving a scanner from a cold place to a warm place can cause condensation on the metal
parts, resulting in a faulty operation. Give the scanner at least one hour to adjust to the
room temperature before unpacking.

CHAPTER 1
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COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
q Lock Switch
B. Installation
1. Unlocking the lock
The scanner is shipped with the scanning unit locked by the lock switch to prevent damage
during transport. Unlock the scanning unit to use the scanner.
1) Turn the scanner over as shown in Figure 1-5.
Figure 1-5
2) Push the lock switch in the arrow direction to unlock.
Figure 1-6
3) Return the scanner to its standard position.
Note: Always lock the scanning unit during transport.
1