CanoScan FB 630U

USB Flatbed Scanner
Sleek Styling. Brilliant Scanning Performance.
H i g h - q u a l i t y, 600 x 1200 dpi/ 36-bit color scanning S l e e k , u l t r a - s l i m d e s i g n just 1.5 inches tall Scanning button for easy one-touch scanning USB port interface for easy PC and Mac connection
T o p - q u a l i t y, a w a r d winning software included FREE
High-quality Scanning. Low-profile Design.
With the ultra-slim CanoScan FB 630U USB Flatbed Scanner on your desktop, youre ready to hit the new century with incredible style and exceptional performance. At just 1.5 inches tall, the FB 630U scanner is the perfect partner to your Mac or PC at work or at homewhere space is often at a premium. Just plug it into the USB port of any compatible computer, load up the software and its ready to deliver spectacular 600 x 1200 dpi/ 36-bit color results. or e-mail them to colleagues, family or friends. Eliminate retyping by scanning articles or text. Create a digital filing cabinet. And have fun with photo manipulation and retouching. Everything you need for brilliant scanning is at your fingertips.
Powerful software tools included.
The FB 630U scanner comes complete with everything you need. Edit images like a pro with Canon Photo. Turn scanned documents into editable text for your word-processing applications with TextBridge Pro. And use ScanGear and ScanGear Toolbox for Windows or Canon Plug-in Module CS-U and CanoScan Toolbox CS for Mac to view, scan and enhance your images quickly and easily. Or program the scan button to automatically send scanned images to your printer or fax modem.
Versatility at the push of a button.
The FB 630U scanner makes document and image scanning simple with numerous easy-to-use features and capabilities built right in. A convenient, programmable button, for example, lets you copy, fax or even e-mail scanned documents automatically. Canons LIDE technology delivers sharp, crisp scans. So you can add photos and graphics to reports and proposals. Prepare visuals for your Web site

Technical Information

Scanner Type Scanning Element Light Source Optical Scanning Resolution Maximum Resolution Scanning Mode Flatbed, color and monochrome Contact Image Sensor (CIS) Three-color RGB LEDs 600 x 1200 dpi 9600 x 9600 dpi Color: 36-bit internal/24-bit external Grayscale: 12-bit internal/8-bit external Black & white Text enhanced Letter (8.5" x 11.7" maximum) USB 10.1" x 14.6" x 1.5" 3.3 lbs. Approximately 6 ft. 32MB RAM (64MB recommended); 50MB available hard-disk space (100MB recommended); Color monitor with 800 x 600 or higher display and 256 or more colors; CD-ROM drive (2x or faster); USB port (excludes addon board) Windows 98 Pentium processor or better Mac OS 8.5 or later G3 or G4 processor ScanGear CS-U TWAIN for Windows 98, Canon Plug-in Module CS-U for Mac OS 8.5 or higher Canon Creative Image CD-ROM, including ScanGear CS-U TWAIN driver, ScanGear Toolbox CS, Canon Plug-in Module CS-U, CanoScan Toolbox CS, Canon Photo and TextBridge Pro Powered through USB port

ENERGY STAR Compliant

Ordering Information

Description

Scanner CanoScan FB 630U

Order #

F91-3831-US1

For More Information

Visit our Web sites: www.ccsi.canon.com www.canoscan.com www.canonprintplanet.com For a name of a dealer nearest you, call 1-800-OK-CANON Canon Computer Systems, Inc. 2995 Redhill Avenue, Costa Mesa, California 92626 1-714-438-3000 Canon Canada, Inc. 6390 Dixie Road, Mississauga, Ontario L5T 1P7 Canada 1-800-263-1121 Canon Latin America, Inc. 6505 Blue Lagoon Drive, Suite 325, Miami, Florida 33126 1-305-260-7400

Document Size Interface Dimensions (W x L x H) Weight Cable Length Common System Requirements
Windows System Requirements Macintosh System Requirements Compatibility Software Included

Power Requirements

Maximum Power Consumption Environmental Conditions (without condensation) Warranty
2.5W (1.4W standby) Operating temperature: 4195F Storage temperature: -40140F Operating humidity: 10%90% RH Storage humidity: 10%90% RH 1-year limited warranty with SelectExchangeSM warranty program*
* SelectExchange warranty program is subject to certain restrictions and limitations. See warranty card for full details.
A Universe of Creative Projects

LED Indirect Exposure

www.canonprintplanet.com
1999 Canon Computer Systems, Inc. Canon, CanoScan, LIDE and ScanGear are trademarks and SelectExchange is a service mark of Canon Inc. Print Planet is a service mark of Canon Computer Systems, Inc. All other product and brand names are trademarks of their respective owners. Specifications subject to change without notice. As an ENERGY STAR partner, Canon U.S.A., Inc. has determined that this product meets the ENERGY STAR guidelines for energy efficiency.
CCSI-C321-1299 35-36202-1299-20M

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 5 : TROUBLESHOOTING
I. INTRODUCTION.. 5-1 IV. CANON SCANNER TEST. 5-6 A. Initial Check.. 5-1 A. Outline. 5-6 B. Others.. 5-1 B. Canon Scanner Test for II. TROUBLESHOOTING. 5-2 CanoScan FB330P/FB630P.. 5-6 A. Troubleshooting Image C. Canon Scanner Test USB for Defects. 5-2 CanoScan FB630U/FB636U B. Troubleshooting.. 5-12 Malfunctions.. 5-3 III. LOCATION OF ELECTRICAL PARTS.. 5-4
CHAPTER 6 : PARTS CATALOG
CanoScan FB330P/CanoScanFB630P.. 6-1 CanoScan FB630U/CanoScan FB636U.. 6-7

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 V. IV. MAIN PCB CIRCUIT DIAGRAM (CanoScan FB630P).. A-8 MAIN PCB CIRCUIT DIAGRAM (CanoScan FB630U/FB636U). A-13
CHAPTER 1 GENERAL DESCRIPTIONS

I. II. III.

FEATURES.. 1-1 SPECIFICATIONS.. 1-2 EXTERIOR FEATURES.. 1-5

IV. V.

INSTALLATION.. 1-7 CUSTOMERS DAILY MAINTENANCE.. 1-13
CANON CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 1

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.

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.

q Lock Switch

Figure 1-6 3) Return the scanner to its standard position. Note: Always lock the scanning unit during transport.
C. Connecting to the Host Computer FB330P/FB630P is connected to the parallel port, FB630U/FB636U is connected to the USB port on the host computer. This section explains how to connect the scanner to the host computer using a parallel cable or a USB cable supplied with the scanner. Refer to "Getting Started" for details. For connecting/disconnecting the host computer's cables, refer to the manual supplied with the host computer. 1. Connecting to the host computer (FB330P/FB630P) 1) Turn the host computer OFF. Disconnect the printer cable if it is connected to the parallel port on the host computer. 2) Connect the parallel cable supplied with the scanner to the parallel port on the host computer. 3) Connect the other end of the parallel cable to the PC port on the scanner.
q PC Port w Parallel Cable

Figure 1-7

4) Connect the printer cable if it is disconnected in 1) to the printer port on the scanner.
q Printer Port w Printer Cable
Figure 1-8 5) Connect the AC adapter to the power terminal on the scanner. Note: Printer precautions * WPS (Windows Printing System) printer cannot be used in a daisy-chain configuration. * When a printer is daisy-chained to the scanner, turn the scanner ON to use the printer.

1 - 10

2. Connecting to the host computer (FB630U/FB636U) 1) Connect the flat connector (A plug) of the USB cable supplied with the scanner to the USB port on the host computer. 2) Connect the other end (B plug) of the USB cable to the USB port on the scanner.

q USB Port w USB Cable

Figure 1-9

1 - 11

Main PCB J2-1 DCS1 -2 HSTB IF0 IF1 IF2 IF3 IF4 IF5 IF6 IF7 HACK HXBSY HXPERR HXSEL HATFD HFALT HINIT HSELIN GND PSTB IF0 IF1 IF2 IF3 IF4 IF5 IF6 IF7 PACK PXBSY PXPERR PXSEL PATFD PFALT PINIT PSELIN GND J3-1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -25 J5-1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -25

+10.5V GND

AC adapter J4-1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 OUT NC AGND VCC VREF SP CLK LED COMMON BLED GLED RLED FGND NC NC NC NC AP AN Scanning unit drive motor BP drive signal BN

To host computer

M1 Scanning unit drive motor Contact image sensor

To printer

Figure 2-4
2. CanoScan FB630U/FB636U
Main PCB Button PCB HP1 Home position sensor BT1 Start button J2-1 -2 -3 -4 HMSEN "H" when scanning unit is in home position. GND VCC BTON "L" when start button is pressed.
J3-1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20
LEDG LEDR LEDB LED COMMON CP RS +5V CLK DSP D+ GND GND VAD VDD OS GND GND GND GND AP AN Scanning unit drive motor drive signal BP BN

J1-1 -2 -3 -4

Scanning unit drive motor Contact image sensor

Figure 2-5

D. Basic Sequences of CanoScan FB330P/FB630P The basic sequences of CanoScan FB330P/FB630P are divided into power ON sequence, calibration sequence, and document scanning sequence. 1. Power ON sequence
<Hardware setting> Time required about 0.7 seconds

Power ON

Sets CPU

Checks CPU internal

CPU internal was checked normally?

NO Sets CPU error flag

Sets gate array

Sets analog IC

Checks buffer RAM
Buffer RAM was checked normally?

Figure 2-6-1

Sets CPU timer
Sets communication gate array
Starts overvoltage detection

Starts interrupt process

Sets parameter

Checks gate array

Gate array was checked normally?

Sets CPU error flag YES

Detects black area

Figure 2-6-2

<Home position detection> Time required about 5 to 6 seconds (Max. 15 sec. returning time is added depending on the position of scanning unit)
Overvoltage was detected?

YES Sets error flag

NO Sets detection mode for border between black and white Standby
Sets border detection value

G LED ON

Changes LED to B and performs from *A to *B. Stores B LED ON period data

LED OFF

Moves scanning unit to the home position

Figure 2-8-3

2 - 14
<White shading data composition> Time required about 3 seconds (per command for each color)
White shading data is required?
Moves scanning unit forward 4 lines
Sets specified LED parameter to turn ON
Obtains 1 line of data to buffer RAM Moves scanning unit forward 6 lines
White data was transmitted?

Figure 2-8-4

2 - 15
Calibration is performed when CanoScan FB330P/FB630P has received calibration command from the host computer. Calibration is to compose black shading data and white shading data by reading and averaging the black mark and white mark on the back of the document glass as color references for the proper color reading. 1) Black shading data composition Black shading data is composed by reading and averaging total 18 lines (6 lines x 3 times) of output from the scanning unit with the LED turned OFF. 2) LED exposure control LED exposure period is set for proper image output. The peak value of image signal output from each red, green and blue LED exposure is checked if it is in the range of a preset value. If the peak value is out of the range, LED exposure time is changed. Proper LED exposure period is set by reading 1 line of an image and checking if it is properly output comparing to the preset value. 3) White shading data composition White shading data is composed by reading 6 lines of each red, green and blue of the white mark, making the highest output 4 lines as sample data. This is repeated 3 times and total 12 lines of sample data is averaged to be the white shading data.

2 - 16

3. Document scanning sequence
Document scan is commanded?
Calculates the amount of horizontal scanning data and the number of vertical scan motor pulse
Sets scan parameter and gate array, and initializes buffer RAM
Moves scanning unit to the vertical scan start position

Scanning unit moved?

LED ON

Starts document scan

Figure 2-9-1

2 - 17

Scan cancellation is required?

Document was scanned?

YES YES LED OFF
Scanning unit returned to the home position?
YES Stops scanning unit drive motor
Image data was transmitted?

YES Standby

Figure 2-9-2

2 - 18

E. Basic Sequences of CanoScan FB630U/FB636U The basic sequences of CanoScan FB630U/FB636U are divided into power ON sequence, calibration sequence, and document scanning sequence. 1. Power ON sequence
Tests gate array read/write
Gate array read/write was tested normally? YES

Sets error flag

Scanning unit is in home position? YES

NO Returns scanning unit

Scanning unit returned to the home position? YES

2 - 21

Corrects black level
Black level was corrected normally? YES

Obtains 15 lines of data

Data was obtained normally? YES
Composes black shading data
Sets black shading data to gate array
Black shading data was set to gate array normally?

Figure 2-11-1

2 - 22
Moves scanning unit to white mark area
Scanning unit moved to white mark area normally?

Adjusts LED ON period

Obtains 9 lines of data
Composes white shading data

Figure 2-11-2

2 - 23
Calibration is performed when CanoScan FB630U/FB636U has received calibration command from the host computer. Calibration is to compose black shading data and white shading data by reading and averaging the black mark and white mark on the back of the document glass as color references for the proper color reading. 1) Black shading data composition Black shading data is composed by reading and averaging total 15 lines of output from the scanning unit with the LED turned OFF. 2) White shading data composition White shading data is composed by reading 9 lines of each red, green and blue of the white mark, and averaging the highest 5 lines of output.

2 - 24

Scan cancellation is required? YES
Document was scanned? YES LED OFF
Image data was transmitted? YES Standby

Figure 2-12

2 - 25

II. OPTICAL SYSTEM

A. Outline The optical system includes the functions of moving the scanning unit by the scanning unit drive motor, exposing a document by the LED, and collecting the reflected light to the phototransistor array. Contact image sensor is adopted for the scanning unit, which is a module combined with the LED for light exposing, the rod lens array for light collecting, and the phototransistor array for light receiving to read per line. The scanning unit drive motor runs by the drive signal sent from the main PCB and drives the scanning unit via the drive pulley and drive wire.
Sliding rod Contact image sensor

Drive wire

Scanning unit drive motor

Drive pulley

Figure 2-13

2 - 26

B. CanoScan FB330P/FB630P Document Scanning Sequence
Sequence STBY HPDET STUP SCFW SCAN SCRTN STBY

Figure 2-23 2) Resolution conversion in the vertical scanning direction The CPU changes the scanning unit moving speed to change the resolution in the vertical scanning direction. When increasing the resolution, the scanning unit moves at a slow speed to read more lines as shown in Figure 2-25.

Sampling point

Moving direction Scanning unit

Figure 2-24

Figure 2-25

2 - 35

When decreasing the resolution, the scanning unit moves at a faster speed to read less lines.
Figure 2-26 6. Packing Processed image data is stored in the buffer RAM before sent to the host computer. The buffer RAM is divided into the writing block and reading block. While data is written into the writing block, the data is read from the reading block. When fixed volume has been written, the writing switches to the reading.
Buffer RAM I (for writing)
Buffer RAM II (for reading)

Output

Fixed volume has been written
Buffer RAM I (for reading)
Buffer RAM II (for writing)

Figure 2-27

The scanner can output 8 bits each and 10 bits each of red, green, and blue images, while the buffer RAM can be accessed only by 1 byte (8 bit) because of the hardware configuration. Therefore, when outputting by 10 bits, the data is converted into 8 bits data to write in the buffer RAM. This process is called a packing.

2 - 36

Figure 2-28 shows the packing process; four 10 bits of pixels A, B, C, and D are divided into higher 2 bits and lower 8 bits, then converted into five 8 bits of image data.
Lower 8 bits of pixels A to D
Higher 2 bits of pixels A to D

A1 A2 A3 A4 A5 A6 A7 A8

B1 B2 B3 B4 B5 B6 B7 B8

C1 C2 C3 C4 C5 C6 C7 C8

D1 D2 D3 D4 D5 D6 D7 D8
A9 A 10 B9 B 10 C9 C 10 D9 D 10

E1 E2 E3 E4 E5 E6 E7 E8

Figure 2-28

2 - 37

IV. CONTROL SYSTEM
A. CanoScan FB330P/FB630P 1. Outline CanoScan FB330P/FB630P control system consists of the CPU and gate array. The CPU has 7 digital ports. P0, P2, P3, P6, and P7 are for generating control signals in the main PCB. P4 is for address bus and data bus (AD-AD7) and P5 is for address bus (A8-A15). P7 is mainly for inputting a function check mode setting.
CPU P5 A8~15 P0, P2, P3, P6, P7 P4 AD0~7 Gate Array To host computer

Control signal

Figure 2-29 2. Control Switching Between Printer And Scanner CanoScan FB330P/FB630P has two parallel ports which allow to connect in order of the host computer, scanner and printer as shown in Figure 2-30. When the host computer sends the signal to start the communication with the scanner, the control is switched between printer and scanner.

Scanner

3. Precaution when attaching the document glass unit 1) Attach the document glass unit pressing toward the front of the scanner as a standard position.

Figure 3-6

II. DRIVE SYSTEM
A. Scanning Unit Drive Part 1. 1) 2) 3) Removing the drive unit Remove the document cover. Remove the document glass unit. Remove the seal (to be reused), pull the drive wire backward to remove it from the base frame through the left hole.
q Wire Stopper w Seal Figure 3-7
Note: Take care not to damage or lose the seal to reuse it.
4) Move the drive unit to the center.
Drive Unit Drive Wire Seal Main PCB Figure 3-8
5) Remove the contact image sensor. (Refer to III. A. 1, step 4), 5)) 6) Remove the flat cable from the main PCB. 7) Remove the drive unit.
2. Precautions when attaching the drive unit 1) Apply appropriate amount of grease (as indicated by the quantity of rice piece) to the positions shown in the figure below. 2) Locate the drive wire as shown in Figure 3-9. 3) Reuse the seal. 4) Connect the flat cable to the main PCB through a ferrite core, then take up the slack in the flat cable.
Grease Applying Positions Drive Wire Wire Spring Ferrite Core Figure 3-9

3. 1) 2) 3) 4)

Removing the drive wire Remove the document cover. Remove the document glass unit. Remove the seal. Pull the drive wire backward to remove it from the base frame through the left hole. (See Figure 3-7) 5) Remove the wire spring from the base frame. (See Figure 3-9) 4. Precautions when attaching the drive wire 1) When the drive wire is twisted, untwist the wire naturally but not forcefully. 2) Locate the drive wire as shown in Figure 3-9.

3 - 10

III. OPTICAL SYSTEM
A. Contact Image Sensor 1. 1) 2) 3) 4) Removing the contact image sensor Remove the document cover. Remove the document glass unit. Move the drive unit to the center. (Refer to II. A. 1, step 3), 4)) Remove 2 spacers at both ends of the contact image sensor.
q Drive Unit w Spacer (FB330P (FB630P (FB630U (FB636U
Left : White, Right : Blue) Left : Gray, Right : Black) Left : Green, Right : Green) Left : Green, Right : Green) Figure 3-10

3 - 11

5) Hold up the front side of the contact image sensor to slide it to the left (See Figure 3-10, arrow q, w), remove the hinges, remove the flat cable, then remove the contact image sensor.
Contact Image Sensor Hinge Flat Cable Spring Figure 3-11
Note: Take care not to touch the glass surface of the contact image sensor, nor lose the spring that holds the contact image sensor when removing it.

3 - 12

2. Precautions when attaching the contact image sensor 1) Take care not to touch the glass surface of the contact image sensor. 2) Attach the flat cable, U-fold and push it in the recess under the connector as shown in Figure 3-12 (FB330P/FB630P).
q Connector w Recess under the Connector Figure 3-12

3 - 13

3) Align the q part on the contact image sensor with the w part on the drive unit as shown in Figure 3-13 when attaching the contact image sensor to the drive unit.

Figure 3-13

3 - 14

IV. PCB

A. Main PCB 1. 1) 2) 3) Removing the Main PCB (FB330P/FB630P) Remove the document cover. Remove the document glass unit. Remove the flat cable, 3 screws, then remove the main PCB.
q Flat Cable w Screw e Main PCB Figure 3-14

3 - 15

2. 1) 2) 3)
Removing the Main PCB (FB630U/FB636U) Remove the document cover. Remove the document glass unit. Remove 2 flat cables, 3 screws, then remove the main PCB.
q Screw w Main PCB e Flat Cable Figure 3-15 3. Precautions when attaching the main PCB 1) Pull the flat cable toward the drive unit to take up the slack in the flat cable after the main PCB is attached.

3 - 16

B. Button PCB 1. 1) 2) 3) 4) 5) Removing the button PCB (FB630U/FB636U) Remove the document cover. Remove the document glass unit. Move the drive unit to the center. (Refer to II. A. 1, step 3), 4)) Remove 2 screws to remove the button PCB. Remove the flat cable to remove the start button, caring not to lose the button spring.
q Button PCB w Flat Cable e Screw Figure 3-16
q Start Button w Button Spring e Button PCB Figure 3-17

3 - 17

CHAPTER 4 MAINTENANCE AND SERVICING
PERIODICAL REPLACEMENT PARTS... 4-1 CONSUMABLE PARTS DURABILITY.. 4-1

III. IV. V.

PERIODICAL SERVICING. 4-1 SPECIAL TOOLS.. 4-1 SOLVENTS AND LUBRICANTS. 4-1

CHAPTER 4

I. PERIODICAL REPLACEMENT PARTS
II. CONSUMABLE PARTS DURABILITY

III.PERIODICAL SERVICING

IV. SPECIAL TOOLS
V. SOLVENTS AND LUBRICANTS
Lubricants used for disassembly and reassembly of the scanner.

Name Grease

Tool No. TKC-0955
Usage / Remarks To be applied to the sliding part between the scanning unit and sliding rod. MOLYKOTE EM-50L

B. Troubleshooting Malfunctions 1. Host computer not detecting the scanner Cause 1 : Faulty installation of the device driver Corrective action : Reinstall the device driver. Cause 2 : The scanner is not powered ON. (FB330P/FB630P) Corrective action : Securely connect the AC adapter to the scanner. Cause 3 : Faulty connection of the parallel cable/USB cable Corrective action : Securely connect the parallel cable/USB cable to the scanner and host computer. Cause 4 : Faulty parallel port setting of the host computer (FB330P/FB630P) Corrective action : Reset the host computer's parallel port setting of transmission method (ECP, EPP, Bidirectional, or Standard) and I/O port address. Cause 5 : Faulty main PCB Corrective action : Replace the main PCB. 2. Scanner not operating Cause 1 : Lock switch is not unlocked. Corrective action : Unlock the lock switch. Cause 2 : Faulty connection of the flat cable Corrective action : Securely connect the flat cable to the contact image sensor and main PCB. Cause 3 : Faulty contact image sensor Corrective action : Replace the contact image sensor. Cause 4 : Faulty main PCB Corrective action : Replace the main PCB. 3. Scanning unit drive motor not running Cause 1 : Faulty connection of the flat cable connector Corrective action : Securely connect the flat cable connector. Cause 2 : Faulty scanning unit drive motor Corrective action : Replace the drive unit. Cause 3 : Faulty main PCB Corrective action : Replace the main PCB. 4. LED of the contact image sensor not lighting Cause 1 : Faulty connection of the connector Corrective action : Securely connect the flat cable. Cause 2 : Faulty contact image sensor Corrective action : Replace the contact image sensor.
III. LOCATION OF ELECTRICAL PARTS

CanoScan FB330P/FB630P

q Main PCB w Contact Image Sensor e Scanning Unit Drive Motor Figure 5-1

CanoScan FB630U/FB636U

Main PCB Contact Image Sensor Home Position Sensor Start Button Scanning Unit Drive Motor Figure 5-2

IV. CANON SCANNER TEST

A. Outline Canon Scanner Test is utility software to check if faulty scanner operation is due to hardware or communication with a host computer. CanoScan FB330P/FB630P : Scnfbp.exe CanoScan FB630U/FB636U : ScanTestU.exe
B. Canon Scanner Test for CanoScan FB330P/FB630P 1. Operating environment 1) CanoScan FB330P/FB630P 2) PC/AT Compatibles (Pentium or faster is recommended.) 3) Windows95/98/NT Operating System 4) Scanner Device Driver Note: Install the scanner device driver before using the Canon Scanner Test.

5 - 12

3. Functions descriptions 1) USB Information Select "Scanner Information" from the "Function" menu to display as shown in Figure 5-9.
Figure 5-9 Device Internal Name Vendor Descrition Device Description Port Name Local Name : : : : : Serial No. of the imaging device recognized by Windows. Manufacturer name (Canon) of the scanner connected. Product name of the scanner connected. Port name of the scanner recognized by Windows. Product name of the scanner connected.

5 - 13

2) Scanner Information Select "Scanner Information" from the "Function" menu to display as shown in Figure 5-10 (Windows) or Figure 5-11 (Macintosh).

Figure 5-10

Figure 5-11 Vendor ID Product ID ROM Version : Manufacturer name (Canon) of the scanner connected. : Product name of the scanner connected. : Scanner controller version.

5 - 14

3) Self Test Select "Self Test" from the "Function" menu to display a dialog as shown in Figure 5-12 (Windows) or Figure 5-13 (Macintosh).

Figure 5-12

Figure 5-13

5 - 15

Click "OK" to perform Self Test. When it has completed normally, a dialog as shown in Figure 5-14 or Figure 5-15 is displayed.

Figure 5-14

Figure 5-15

5 - 16

4) Save Test Data Select "Save Test Data" from the "Function" menu to display a dialog as shown in Figure 5-16 (Windows) or 5-17 (Macintosh).

Figure 5-16

Figure 5-17

5 - 17

Click "OK" to save test data. When test data has been saved, a dialog as shown in Figure 518 (Windows) or Figure 5-19 (Macintosh) is displayed.

Figure 5-18

Figure 5-19

5 - 18

5) Scan Select "Scan" from the "Function" menu to display a dialog as shown in Figure 5-20 (Windows) or Figure 5-21 (Macintosh).

Figure 5-20

5 - 19
Figure 5-21 Resolution : Set a resolution for the image to be scanned. How to Scan : Set a processing method of the scanned image. When "Read in memory (no file)" is selected, scanned image is read into the memory, then abandoned after readout. When "Save to TIFF file" is selected, the file of "img0.tif" is set up in the same folder with the Canon Scanner Test USB. File space to be created is as follows. 75 dpi : Approx. 1.6 MByte 150 dpi : Approx. 6.5 MByte 300 dpi : Approx. 26.2 MByte 600 dpi : Approx. 105 MByte Note: Confirm before scanning that the available disk space on the HDD in which the Canon Scanner Test USB is installed exceeds above file space.

060-0096-0SP 060-0097-0SP
071-0021-0SP 002-0666-0SP NPN 057-0016-0SP 053-0088-0SP NPN 053-0085-0SP 077-0503-0SP 077-0812-0SP 002-0623-0SP 002-0628-0SP

084-0167-0SP

CanoScan FB630U/CanoScan FB636U

FIGURE U01

U01-01
104-0119-0SP 104-0138-0SP
CABLE, USB CABLE, USB STAND ASSEMBLY TAPE

FB630U FB636U

002-0632-0SP 003-7204-0SP

FIGURE U10

FB630U MAIN BODY

6 - 10

U10-19
002-0619-0SP 002-0624-0SP 052-0130-0SP 060-0100-0SP 071-0021-0SP 002-0667-0SP NPN 057-0016-0SP 053-0088-0SP NPN 053-0085-0SP 077-0503-0SP 077-0620-0SP 004-0313-0SP 084-0167-0SP 004-0315-0SP 053-0089-0SP 104-0133-0SP 071-0022-0SP
DOCUMENT COVER ASSEMBLY PLATEN GLASS ASSEMBLY SPACER SET CONTACT IMAGE SENSOR SPRING SENSOR DRIVE ASSEMBLY SLIDING ROD WIRE, DRIVE HOOK BASE FRAME LOCK, CARRIAGE SCREW, M3X5, SELF-TAPP SCREW, M2X6, SELF-TAPP MAIN PCB ASSEMBLY SEAL BUTTON PCB ASSEMBLY BUTTON, FUNCTION CABLE, FLAT (BUTTON) SPRING, BUTTON

6 - 11

FIGURE U20

FB636U MAIN BODY

6 - 12

U20-19

002-0669-0SP 002-0668-0SP 052-0130-0SP 003-5206-0SP 071-0021-0SP 002-0667-0SP NPN 057-0016-0SP 053-0088-0SP NPN 053-0099-0SP 077-0503-0SP 077-0620-0SP 004-0313-0SP 084-0168-0SP 004-0315-0SP 053-0089-0SP 104-0133-0SP 071-0022-0SP

6 - 13

GENERAL CIRCUIT DIAGRAM (CanoScan FB330P/FB630P). A-1
IV. MAIN PCB CIRCUIT DIAGRAM (CanoScan FB630P).. A-8 V. MAIN PCB CIRCUIT DIAGRAM (CanoScan FB630U/FB636U). A-13
GENERAL CIRCUIT DIAGRAM (CanoScan FB630U/FB636U). A-2
III. MAIN PCB CIRCUIT DIAGRAM (CanoScan FB330P).. A-3
I. GENERAL CIRCUIT DIAGRAM (CanoScan FB330P/FB630P)
J20 VOUT NC AGND VCC VREF SP CLK LED COMMON BLED GLED RLED FGND NC NC NC NC AP AN BP BN J3
J6 J8 HSTB IF0 IF1 IF2 IF3 IF4 IF5 IF6 IF8
J5 PSTB IF0 IF1 IF2 IF3 IF4 IF5 IF6
HACK 11 HXBSY 12 HXPERR 13 HXSEL 14 HATFD
9 IFPACK 11 PXBSY 12 PSPERR 13 PXSEL 14 PATFD 15 PFALT 16 PAINTT 17 PSELIN 18 GND 19 GND 20 GND 21 GND 22 GND 23 GND 24 GND 25 GND

VCC VCC RA1 RA4

VCC R9 HFALT 17 E UPACK B UPBSY B HACK HXBSY HXPERR HXSEL C C E IFD4 IFD5 IFD6 IFD7 QRA22 C9 RA21 C11 C16 C4 RA5 HSTB HATFD HINIT HSELIN JRA10 IFD0 IFD1 IFD2 IFD4
HBSYIN VCC VCC RA12 RA15 R4 R23 PFALT 3 4
JRA14 PACK PXBSY PXPERR PXSEL 13 C37 C36 C35 CRA5

PSTB PATFD PINIT PSELIN

IV. MAIN PCB CIRCUIT DIAGRAM (CanoScan FB630P)

VCC QI O 3 FBI -+5R

3 C7 4

L(+Volt) C10 + C8 + C49

A - 10

A - 11

A - 12
V. MAIN PCB CIRCUIT DIAGRAM (CanoScan FB630U/FB636U)

TP3 VIS C77 TP1

VOB C56
TP4 TR R61 TR TP2 TP R60 PH1 C70 C62 C69 C61 C68 C58 C67 C57 REN GEN BEN

C75 C76 C64 C66 C72 C79

OS R OS G OS B

VBANDGAP

VREF LO FORCE VREF LO SENSE
VREF MID FORCE VREF MID SENSE
VREF HI FORCE VREF HI SENSE

LAMP R LAMP G LAMP B

CP2 CP1 RS i2 i1 TR2 TR1
RA7 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A31 2
U8 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 VCC E21 VCC C30 DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7
RA6 A A B B SENSE A SENSE B SENSE GND PSENSE#1 PSENSE#2 MISCI/0#1 MISCI/0#SENA SENB MA+ MAMB+ MBHMSEN C53 R48 VCC

(MOTOR GND)

RA1 R8
RA0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A22 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 CLOCK IN CLOCK OUT R47 SELECT PE BUSY ACT D7 D6 D5 D4 D3 SELECT IN D2 INIT D1 ERROR DO AUTOFEED STROBE 35 CKO R51 R50 R49 R56

WE G E1

BUSY PD7 PD6 PD5 PD4 PD3 PD2 PD1 PD0 -AUFD -STB -SLIN PD2 PD7 PD6 PD5 PD4 PD3

-INIT PD1 PD0

[A0.A16]
VD INT SRAM DGND INT SRAM

TRISTATE LATCH

SUBSTRATE
DGND I/O DGND I/O DGND I/O DGND I/O
VD I/O VD I/O VD I/O VD I/O

VD DGND

VA AGND VA AGND

VCC VCC

VCIS C74
VCC C31 C55 C50 C44 C51 C54 C43 C48 C63 C60

A - 13

BUSY R32

C15 C29

R14 -STB R38 -AUFD R37 -SLIN C18 U5 R11 CLKOUT URST DSTRB# ASTRB# INT# URST DSTRB# ASTRB# -WAKEUP GP101 GP102 GP103 GP105 GP106 GP107 -WAKEUP R35 R34 C47 C46

C35 C36 C37 C38 C39 C40 C41 C42 +5VD

WR# WAIT#

IOR#/WR# IOW#/WAIT# OSCSEL RSTYPE MODE D0 D1 D2 D3 D4 D5 D6 D7 X1 X2 D+ D-
RA1 PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7 +5VD R36 CK48 GX1 C28 C21 U4A U4B GD+ GD4 +5VD R21 R15 R23 R30 R29 L3 Y1 C16 C17 C20 CVCC VCC VCC GD0 GD1 GD2 GD3 GD4 GD5 GD6 GD14
CS#/GP101 EOP#/GP102 DACK#/GP103 DRQ/GP104 AO/GP105 A1/GP106 A2/GP107 A3/INIT# VCP NC NC NC GND GND GND
(BUTTON) (SUSPEND) (UNCONFIG)

GP103 GP105

GP103 R39

-INIT R45 GP107 R43 C33

V33 V33

C19 R44 +5VD

11 VBUS L1 + C5 C4 R3 +5VD
R25 C14 C23 C26 R5 J4 R13 +5VD DQ9 G -CKON S S +5VD +5VD 2 U1 R4 Q1 +5VD E R19 C -CKON G D Q8 V33 R9 GD+ C13 C12 C27

VP1 D1 D1 D2 D5

R33 U7A

B R42 C32 R6

S1 G1 S2 G2
2 GP105 +5VD R8 (SUSPEND) +5VD +5VD 3

B R7 Q2 GP107 Q4 R24

U7B G GPQ Q 8 CK0 (BUTTON)

1 S 2 U3 -WAKEUP 4

12 CK48 11

R16 Q7 D G G S S D Q6

A - 14

VPI R12 + C7 C8 C9

U2 D/C IPK/2 VIN C/1 S/C OUT T/C GND C11 Q3 R26 + R18 C1 R2 R1 + C2 CVIN VOUT VSS 3 + C24 C22 R66 R71 C81 VCIS
U12D VEE VPI 14 R88 VCIS C83 R67 VCC + C87 C90 R82 UVCC IN4 IN3 IN1 IN2 OUT4 OUT3 OUT1 OUT2 GND 6 C30 + R46

12 R74 C85 13

C73 VCIS R64 VOB
R72 JMA+ MAR41 SENA C49 MA+ MA-

(A+) (A-)

R59 R55

PA+ PA-

TR VCC PH1 R83 C89
U11 MBMB+ 5 VCC IN4 IN3 IN1 IN2 OUT4 OUT3 OUT1 OUT2 GND 6 (B-) (B+) R58 R62 PBPB+

PA+ PAPB+ PB-

R53 SENB C52

U12A VEE CQ13 B 1 R85

R73 VCIS R69

E VCIS 4 VCC

R79 VCC CQ12 B REN C88 R78
U12B VEE CQ14 B 7 R4 E HMSEN HMSEN J2

VCC R84

R76 VCIS R70
CQ10 B +5VD GEN U12C VEE CQ+ E R81 VCC CQ11 B BEN E B 8 R87 C82 GP103 (BUTTON) E R89 R68 D2

R77 VCIS R75

A - 15
REVISION 0 (OCT. 1999) Prepared by NEW BUSINESS TECHNICAL SUPPORT DEPT. NEW BUSINESS QUALITY ASSURANCE DIV. QUALITY ENGINEERING CENTER CANON INC.