CS9900F
SERVICE
MANUAL
Canon
SERVICE
MANUAL
REVISION 0
CanoScan 9900F
JPN
USA
EUR
UK
AUS
CAN/CLA
FEB. 2003
8132A001AA
8132A002AA
8132A003AA
8132A004AA
8132A005AA
8132A006AA
UYW000001-
JY8-1322-00Z
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
COPYRIGHT © 2003 CANON INC.
Printed in Japan
Imprimè au Japon
Use of this manual should be strictly supervised
to avoid disclosure of confidential information.
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CONTENTS
CHAPTER 1 : GENERAL DESCRIPTIONS
SPECIFICATIONS ....................... 1-1
B. Unlocking the Lock Switch .. 1-6
II. PARTS CONFIGURATION ........... 1-2
C. Connecting the Cables ......... 1-6
A. Front View .......................... 1-2
D. Scanning ............................. 1-8
B. Back View ........................... 1-4
IV. CUSTOMER’S DAILY MAINTENANCE
III. SETTING UP THE SCANNER ...... 1-5
......................................... 1-12
I.
A. Precautions ......................... 1-5
CHAPTER 2 : OPERATION AND TIMING
I.
BASIC OPERATION .................... 2-1
III. IMAGE PROCESSING ............... 2-12
A. Functions ............................ 2-1
A. Outline .............................. 2-12
B. Electrical System ................ 2-2
B. Image Processing ............... 2-13
C. Main PCB Input and Output . 2-4
IV. CONTROL SYSTEM .................. 2-20
A. Control System Diagram .... 2-20
D. Document Scanning Sequence
B. Main PCB .......................... 2-20
........................................... 2-5
II. OPTICAL SYSTEM ..................... 2-6
V.
INTERFACE ............................. 2-21
A. Outline ................................ 2-6
A. USB ................................... 2-21
B. Lamp Lighting Circuit ......... 2-7
B. IEEE 1394 ......................... 2-24
C. FARE (Film Automatic Retouch-
VI. POWER SUPPLY ....................... 2-24
ing and Enhancement) ......... 2-9
D. Motor Control Circuit ........ 2-11
CHAPTER 3 : MECHANICAL SYSTEM
PARTS REPLACEMENT .............. 3-1
E. Attaching the Front Panel ...3-9
A. Precautions ......................... 3-1
III. PCBs ....................................... 3-11
II. EXTERNALS .............................. 3-2
A. Removing the Main PCB .... 3-11
A. Removing the Film Adapter Unit
IV. OPTICAL SYSTEM ................... 3-14
I.
........................................... 3-2
B. Removing the Top Cover and
A. Removing the Scanning Unit,
Pulley Unit, and Motor Unit 3-14
Document Glass Unit ........... 3-3
B. Removing the Motor Unit .. 3-22
C. Attaching the Top Cover ...... 3-6
C. Attaching the Motor Unit .. 3-23
D. Removing the Front Panel ... 3-7
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 4 : MAINTENANCE AND SERVICING
I.
PERIODICAL REPLACEMENT
III. PERIODICAL SERVICING ........... 4-1
PARTS ....................................... 4-1
IV. SPECIAL TOOLS ........................ 4-1
II. CONSUMABLE PARTS
V.
SOLVENTS AND LUBRICANTS .... 4-1
DURABILITY .............................. 4-1
CHAPTER 5 : TROUBLESHOOTING
I.
INTRODUCTION ........................ 5-1
C. Scanning Unit Movement Failure
A. Initial Check ....................... 5-1
........................................... 5-5
B. Others ................................. 5-1
D. Poor Image Quality .............. 5-5
II. TROUBLESHOOTING FLOWCHART
E. Acoustic Noise ..................... 5-5
........................................... 5-2
IV. CANON SCANNER TEST ............. 5-6
A. Power LED Failure ............... 5-2
A. Outline ................................ 5-6
B. Communication Failure ....... 5-3
B. Operating Environment ....... 5-6
III. PROBLEM, CAUSE AND
C. Functions ............................ 5-7
CORRECTIVE ACTION ............... 5-4
D. Functions Descriptions ....... 5-8
A. Power LED Not Lighting ....... 5-4
E. Error Message ................... 5-18
B. Communication Failure ....... 5-4
CHAPTER 6 : PARTS CATALOG
FIGURE 001 .............................. 6-2
FIGURE 100 .............................. 6-4
APPENDIX
I.
GENERAL CIRCUIT DIAGRAM .... A-1
III. CCD PCB CIRCUIT DIAGRAM ... A-11
II. MAIN PCB CIRCUIT DIAGRAM ... A-2
COPYRIGHT  2002 CANON INC. CANOSCAN 8000F REV.0 OCT. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 1
GENERAL DESCRIPTIONS
I.
SPECIFICATIONS ....................... 1-1
B. Unlocking the Lock Switch .. 1-4
II. PARTS CONFIGURATION ........... 1-2
C. Connecting Cables ............... 1-5
A. Front View .......................... 1-2
D. Scanning ............................. 1-6
B. Back View ........................... 1-3
IV. CUSTOMER’S DAILY MAINTENANCE
III. SETTING UP THE SCANNER ...... 1-4
........................................... 1-9
A. Precautions ......................... 1-4
COPYRIGHT  2003 CANON INC.
CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 1
I. SPECIFICATIONS
Scanner Main Unit
Type
: Flatbed image scanner
Scanning Part
Image sensor
Light source
Document type
Document alignment position
Max. document size
Image output mode
:
:
:
:
:
:
Optical resolution
Scanning time
Film Scanning Part
Film type
Film size
Light source
Scanning time
Interface Part
Interface
Front Panel
Scanner button
Others
Operating environment
Power source
Power consumption
Dimensions
Weight
14,240-pixel 6-line CCD
Cold cathode fluorescent lamp
Sheet, Book
Right-end corner
A4/Letter size (216 x 297mm)
Color 16-bit/ 8-bit for RGB each
Grayscale 16-bit/ 8-bit
: 3200 dpi x 6400 dpi
:
USB2.0/IEEE1394
USB1.1
upto 200dpi
2.16
2.16
upto 400dpi
2.16
4.32
upto 800dpi
4.32
8.64
over 801dpi
8.64
17.28
(msec/ line)
: Color and monochrome, negative and positive
: 35mm sleeve (6 frames x 8)
35mm slide mount (24 frames)
Brownie
4X 5 inch
: Cold cathode fluorescent lamp
IR LED (for FARE function)
: USB2.0/IEEE1394:2.16-138.24msec/line
USB1.1:2.16-146.88ms/line
(automatically selected depending on films)
: USB connector (Universal Serial Bus 2.0)
IEEE-1394 connector
Power connector (for AC adapter)
FAU connector (6-pin)
: 4 buttons (COPY, SCAN, FILE, E-MAIL) on the scanner
unit
: Temperature : 10 to 35 degrees
Relative humidity : 10 to 90%RH
Air pressure : 613 to 1013 hPa
: 100V to 120V
220V to 240V
: 21W max. (during operation)
8W (during standby)
: 290.0 (Width) x 509.0 (Depth) x 127.3 (Height) mm
: Approximately 5.3kg
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
1-1
CHAPTER 1
II. PARTS CONFIGURATION
A. Front View
1
2
3
4
10
5
9
6
7
8
q
w
e
r
t
y
u
i
o
!0
Document Cover
Protective Sheet
Film Adapter Unit
Document Glass
COPY Button
SCAN Button
FILE Button
E-MAIL Button
Alignment Mark
Lock Switch
Figure 1-1
1-2
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 1
B. Back View
1
2
3
4
5
q
w
e
r
t
Power Connector
FAU Cable
FAU Connector
IEEE-1394 Connector
USB Connector
Figure 1-2
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
1-3
CHAPTER 1
III. SETTING UP THE SCANNER
A. Precautions
*
*
*
*
*
Keep the scanner out of direct sunlight. Direct exposure to the sunlight or excessive heat
may cause damage to the scanner.
Do not install the scanner in a humid or dusty environment.
Use supplied AC adapter only.
Place the scanner on an even and flat surface. Tilted or uneven surface may cause a
mechanical problem.
Keep the outer carton and packing material for future shipment.
B. Unlocking the Lock Switch
Scanning unit is locked by the lock switch to prevent a damage during transport. Unlock the
lock switch by pushing it toward the “unlock” mark to use the scanner.
1
q Lock Switch
Figure 1-3
Note : Ensure to lock the lock switch during transport.
1-4
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 1
C. Connecting Cables
CanoScan 9900F needs to be connected to the USB port on the host computer. For details,
refer to the “Quick Start Guide” that comes with the product. As for connecting the host
computer’s cables to the scanner, refer to the host computer' manual.
Note: Install the device driver before connecting the cables.
1. Connecting FAU Cable, USB Cable, IEEE 1394 Cable and AC Adapter Cable
1) Connect the FAU cable to the FAU connector.
2) Connect the scanner with the host compter by either USB Cable or IEEE1394 Cable.
Note: IEEE1394 Cable is not included. Use recommended cables.
3) Connect the AC adapter cable to the power connector on the scanner.
1
2
3
6
5
q
w
e
r
t
y
4
USB Connector
IEEE-1394 Connector
Power Connector
USB Cable
IEEE-1394 Cable
AC Adapter
Figure 1-4
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
1-5
CHAPTER 1
D. Scanning
1. Scanning Original
1) Place an original face-down on the document glass by aligning its top edge with the
alignment mark.
1
q Alignment Mark
Figure 1-5
2) Close the document cover without moving the original.
3) Send the scan command from the host computer.
1-6
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 1
2. Scanning Film
1) Slide the protective sheet up and remove it from the document cover.
Figure 1-6
2) Insert the film into the film guide.
* Film strips
Open the film holder on the film guide for film strips, insert the strip(s) face-down into the
guide and close the film holder.
* Slides
Place a slide face down in the film guide for slides.
* Open the film holder on the film guide for Brownie and 4X 5 inch, insert the strip(s) facedown into the guide and close the film holder.
R
R
Figure 1-7
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
1-7
CHAPTER 1
3) Place the loaded film guide by aligning its leading tab with FILM mark on the document
glass and close the document cover.
1
q FILM Mark
Figure 1-8
4) Send the scan command from the host computer.
1-8
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 1
IV. CUSTOMER’S DAILY MAINTENANCE
Dirt on the document glass may result in an unclear image or lines on an image. Clean the
document glass according to the following steps.
1) Disconnect all the cables from the scanner.
2) Dampen a soft and clean cloth and wring it thoroughly. Wipe a dirt off the document glass
with the cloth.
3) Completely wipe water off the document glass with a dry cloth.
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
1-9
CHAPTER 2
OPERATION AND TIMING
I.
BASIC OPERATION .................... 2-1
III. IMAGE PROCESSING ............... 2-12
A. Functions ............................ 2-1
A. Outline .............................. 2-12
B. Electrical System ................ 2-2
B. Image Processing ............... 2-12
C. Main PCB Input and Output . 2-4
IV. CONTROL SYSTEM .................. 2-17
D. Document Scanning Sequence
A. Control System Diagram .... 2-17
........................................... 2-5
II. OPTICAL SYSTEM ..................... 2-6
B. Main PCB .......................... 2-17
V.
INTERFACE ............................. 2-18
A. Outline ................................ 2-6
A. USB ................................... 2-18
B. Lamp Lighting Circuit ......... 2-7
B. IEEE 1394 ......................... 2-19
C. FARE (Film Automatic Retouching
VI. POWER SUPPLY ....................... 2-20
and Enhancement) .............. 2-9
D. Motor Control Circuit ........ 2-11
COPYRIGHT  2003 CANON INC.
CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2
I. BASIC OPERATION
A. Functions
The scanner is composed of three systems including optical system, image processing system,
and control system.
FAU
FAU Lamp
IR LED
BGR
Lamp
Scanning Unit
Lens
B
G
R
CCD
Host
Optical System
Drive Motor
FARE Unit
Computer
Control
System
Image Processing System
Figure 2-1
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2-1
CHAPTER 2
B. Electrical System
1. Outline
Figure 2-2 is an electric system circuit diagram.
The scanner is not equipped with CPU. The device driver with a control program installed in
the host computer functions as CPU. The host computer sends a command to the ASIC via the
USB controller or IEEE 1394 controller. The ASIC controls the whole electrical circuits and
image processing of the scanner. The image signals read by the CCD are converted into digital
data by analog IC. The digital data is then processed by the ASIC and is output to the host
computer via USB interface.
Host Computer
Control
Program
JP9
USB
Controller
JP9
IEEE-1394
Controller
J1
Inverter
PCB
J2
+24V
FAU
Regulator
Home
Position
AC adapter
Sensor
FAU Lamp
Scanning
Lamp
JP2
Inverter
PCB
Button PCB
Scanner Button
Power LED
ASIC
JP1
CCD
PCB
DRAM
Analog IC
JP8
Motor
Driver
FARE
Drive
Motor
Unit
Figure 2-2
2-2
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2
2. Functions of Main PCB
1) Analog IC
Converts the image signals (analog signals) read by CCD into digital data.
- CDS (Correlated Double Sampling)
- AGC (Auto Gain Control)
- 8-bit A/D converter
2) ASIC
Performs the following transactions:
- DRAM control
- CCD timing clock creation
- Line buffer control
- CCD output line difference adjustment
- Image processing
- Shading correction
- Motor driver control
3) DRAM
Stores the shading compensation data when performing shading compensation.
Stores the image data when scanning.
4) Motor Driver
Supplies power to the drive motor.
5) USB Controller/ IEEE 1394 Controller
Controls data transfer between the host computer and ASIC.
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2-3
CHAPTER 2
C. Main PCB Input and Output
AC Adapter
Scanning Unit
J2-1
-2
-3
-4
-5
JP1-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
-21
-22
-23
-24
-25
-26
-27
-28
Main PCB
+24V
+24V
+24V
NC
GND
LAMP_GND
LAMP_GND
LAMP_PWR
LAMP_PWR
CCD_PWR
CCD_PWR
AGND
CCD_CK1
CCD_CK2
AGND
VAROS_PWR
AGND
ASIC_VAROS
B_TG
CLB
G_TG
RB
R_TG
VCC
AGND
MTATHOME
AGND
AGND
OUT_B
AGND
OUT_G
AGND
OUT_R
J1-1
-2
-3
-4
-5
-6
-7
-8
To Film Scanning
Unit
Vbus
DD+
GND
JP9-1
-2
-3
-4
To Host
Computer
VP
VG
TPBN
TPB
TPAN
TPA
JP9-1
-2
-3
-4
-5
-6
XPA
FAU_LED
FAU_DET
NC
LMP_PWR
XPAGND
NC
XPAGND
To Host
Computer
Scanner
button
COPY
JP2-1
-2
-3
-4
-5
-6
-7
-8
SCAN
FILE
E-MAIL
HOTKEY0
HOTKEY1
"H" when Scanner button is
HOTKEY2
pressed
HOTKEY3
"H" when power LED is ON
LED
DGND
DGND
PWRSW
Power
LED
Power Switch
Button PCB
Home Position
Sensor
"H" when scanning unit is in
home position
JP6-1
-2
Drive motor
-3
-4
OUT1B
OUT1A
OUT2A
Drive motor drive signal
OUT2B
Figure 2-3
2-4
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2
D. Document Scanning Sequence
1. Document Scanning Sequence
Scan Command
Sequence
Standby
Setup
Scanning Unit forward
Scanning Unit
backward
Standby
Home Position
Sensor
Scanning Lamp
ON Signal
Drive Motor
(Scans 9 lines for
RGB each)
Interface Signal
Figure 2-4
Seqence
Standby
Setup
Purpose
Operation
Remarks
After the scanner self test is
completed until the scanner
receives a scan command from
the host computer
To maintain the scanner ready
for scan
From the scanner receives a
scan command until it starts
To execute calibration for setting
The data is stored in DRAM
light exposure time, gain data and
shading data
scanning
After the scanner starts scanning
Scanning Unit until whole scan area specified
by the host computer is scanned
Forward
To execute image processing
according to the command from
the host computer while scanning
and send imada data to the
host computer
Scanning Unit
backward
After the scanning unit starts
moving backward until it returns
to the home position
To return the scanning unit to the
home position to ready for the
next scan
Home position is detected
by the home position sensor
Table 2-1
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2-5
CHAPTER 2
II. OPTICAL SYSTEM
A. Outline
The optical system consists of the scanning lamp, lens and mirrors. When scanning a
reflective materials such as papers , the original is exposed to the light of the scanning lamp in
the scanning unit. The reflected light of the original forms an image on the photosensitive
device, CCD (charge-coupled device) via lens and mirrors.
When scanning transparent material such as films, Light of the FAU lamp in the Film
Adapter Unit transmits the film. The transmitted light forms an image on CCD.
When scanning with FARE function, IR LED instead of FAU lamp works to operate FARE unit.
CCD
Scanning Lamp
Lens
FARE Unit
Figure 2-5
2-6
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2
B. Lamp Lighting Circuit
1. Scanning Lamp Lighting Circuit
When the scanner is turned on, or the host computer sends a scan command, ASIC turns on
the scanning lamp lighting signal (LAMP) to light the scanning lamp.
The reflected light of the original is focused on CCD (charge-coupled device) via the five
mirrors, lens and FARE unit.
The scanner is equipped with a lamp OFF function for energy saving. A built-in timer
automatically turns off the lamp if no scanning command is sent from the host computer for a
certain period of time. Setting up of the timer is conducted by the device driver.
Document Glass
Scanning Lamp
CCD
Lens
FARE Unit
Scanning Unit
Main PCB
LAMP
CCD
GND
Host
PCB
Inverter
GND
PCB
ASIC
Computer
Figure 2-6
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2-7
CHAPTER 2
2. FAU Lamp Lighting Circuit
Figure 2-7 is a FAU Lamp Lighting Circuit diagram.
When the host computer sends a film scanning command, ASIC turns off the scanning lamp
lighting signal (LAMP) and simultaneously turns on FAU lamp lighting signal (XPA) to light the
FAU lamp.
Light of the FAU lamp is converted into a flat light source by a light guide plate. The light is
diffused by the1st diffusive film, the luminous intensity enhancement film and the 2nd
diffusive film. Light transmitted the transparent plate all has the same luminous intensity as a
result. Light transmits a film and is focused on the CCD in the scanning unit.
The FAU lamp also has a lamp OFF function for energy saving.
3. Infrared LED Lighting Circuit
When the host computer sends a command to light an IR LED, ASIC turns on IRLED signal to
light the IR LED.
The IR LED light is converted into a flat light source by a light guide plate. Light transmits a
film via the1st diffusive film, the luminous intensity enhancement film, the 2nd diffusive film
and the transparent plate.
FAU
FAU Lamp
Reflective Film
Light Guide Plate
Inverter PCB
IRLED
1st Diffusive Film
Brightness
Enhancement Film
2nd Diffusive Film
Transparent Plate
Scanner
IRLED
Scanning Unit
XPA
Host
Computer
ASIC
Main PCB
Figure 2-7
2-8
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2
C. FARE (Film Automatic Retouching and Enhancement)
1. Outline
When scanning a film, it is difficult to obtain a clean image because of dirt and scrach on the
film. CanoScan 9900F is equipped with the IR LED in addition to the FAU lamp (cold cathode
fluorescent lamp) to remove scratches and dirt on a film by scanning a film by two light
sources. This function is called FARE (Film Automatic Retouching and Enhancement).
The IR LED scans only scratches and dirt on a film as image data. This data is compared to
the full image data scanned by the FAU lamp, and the overlap data (that is of scratches and
dirt) is deleted. The other scanned data of the film compensates for the deleted area, and the
image without scratches and dirt is reproduced.
(FAU LAMP)
(IR LED)
Light
Source
Film
Lens
CCD
Scanned
Image
Figure 2-8
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2-9
CHAPTER 2
2. Operating FARE Function
Two light sources mounted in CanoScan 9900F have different frequencies ( the FAU lamp
(cold cathode fluorescent lamp): 380- 700nm, and IR LED : 880nm). If there light sources are
used under the same optical system, the image will be out of focus(Figure 2-9-2).
CanoScan 9900F is equipped with FARE unit. This unit is placed between the CCD and lens
and is consists of a refraction glass that changes the refractive index of light and
electromagnetic switch that change the position of the refraction glass.
First, scan a film with light of the FAU lamp transmitting the refraction glass. Secondl, scan
a film with the IRLED and turn on the electromagnetic switch to move the refraction glass to
the position where no IR LED light can transmit the glass (Figure 2-9-3).
Above functions make it possible to obtain the scanned image with the focus of light on the
film while using two light sources with different frequencies.
Light Source
FAU Lamp
IR LED
IR LED
Film
Lens
Refraction Glass
(FARE Unit)
CCD
Figure 2-9-1
2 - 10
Figure 2-9-2
Figure 2-9-3
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2
D. Motor Control Circuit
Figure 2-10 is a motor drive circuit diagram.
Control program analizes a command sent from the host computer, and sends a motor clock
generation command to ASIC. Gate array generates eight-phase motor drive pulse signals [I01,
I02, I11, I12, I21, I22, I31, I32]. These signals are sent to the drive motor via motor driver.
When the host computer changes the resolution, the control program commands ASIC to
change the drive motor rotating speed by changing the frequency of the motor drive pulse
signal .
Host
Computer
Control
Program
Main PCB
I01
I02
ASIC
I11
Motor
Driver
OUT1B
JP8-1
OUT1A
-2
I21
OUT2A
-3
I22
OUT2B
-4
I12
Drive Motor
I31
I32
Figure 2-10
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2 - 11
CHAPTER 2
III. IMAGE PROCESSING
A. Outline
Image processing system consists of the CCD, analog IC, and ASIC. Analog signal read by the
CCD is converted into digital data, and the digital date is sent to the host computer.
1. CCD
2.. A/D
Conversion
3. Calibration
4. Filter
Processing
To Host Computer
Figure 2-11
B. Image Processing
1. CCD
The CCD is a single chip photoelectric conversion device equipped with several thousand
photosensitive devices. Each photosensitive devices is several microns square, and all devices
are formed into a line to read RGB image signals with a built-in scanning circuit.
CanoScan 9900F uses 6-line CCD.
1) 6-line CCD
6-line CCD has two rows of photosensitive devices in staggered arrangement for RGB each.
This measn that the image with the resolution worth 1600dpi x 2 = 3200dpi can be scanned by
only one scanning operation.
Figure 2-12
2 - 12
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2
2. A/D Conversion
Figure 2-13 is a block diagram that shows an internal processing of analog IC in the image
processing system.
Output signal s from the CCD are analog signals, and they cannot be used as image data. So,
RGB output signal from the CCD is amplified by analog amplifier to generate analog data. The
data is then converted into image data by A/D converter.
D/A Converter
CCD
R
G
B
Analog
Amplifier
A/D Converter
Digital data
To ASIC
Analog IC
Figure 2-13
1) D/A Converter
D/A converter removes uneven data generated by the CCD' analog data. D/A converter
adjusts CCD output to maintain a maximum value of input signal to A/D converter at 5V so
that the black level of the image be constant.
2) A/D Converter
A/D converter converts the black-level-corrected image signal (analog signal) into a 16-bit
image data (digital signal) in the order of red, green and blue image signal.
CanoScan 9900F uses 8-bit A/D converter. 5V is applied to the Vcc terminal, and reference
voltage is applied to the Vref terminal. A/D converter outputs “0” when input signal is 5V, and
outputs “255” when input signal equals to reference voltage. 1 pixel signal is converted into
image data with 65536 tone for each colors including red, green and blue.
Image Data
A/D Converter
Blue Image Signal
Green Image Signal
Red Image Signal
Reference Voltage
CCD_B
CCD_G
CCD_R
Vref
0 1
0 1
0 1
0 1
Output
0 1
0 1
+5V
Vcc
0 1
0 1
Figure 2-14
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2 - 13
CHAPTER 2
3. Calibration
When scanning a document of even density, the image signal corresponding to each pixel may
be uneven due to the following reasons:
* Uneven light intensity of the scanning lamp
* Variation in the sensitivity of the light phototransistors
* A slight output from the light phototransistors with no light
Calibration corrects these variations with the following three steps:
Offset Calibration
Coarse-gain Calibration
Programmable Gain Amplifier (PGA).
1) Offset Calibration
Normalize the output data from each pixel at the value of 0 or near 0 by using data aquired
with no light.
2) Coarse-Gain Calibration
Finds the optimum gain setting to have the output voltage from all pixels within in the
adjustment range of Programmable Gain Amplifier.
3) Programmable Gain Amplifier (PGA)
Calculates a gain coefficient to make output constant by correcting the output difference
among pixels.
4. Filter Processing
Changing the resolution and the scaling tends to reduce the image quality. To prevent this,
the filter processing needs to be performed according to the resolution. The filter processing
includes interpolation processing and averaging.
2 - 14
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2
1) Interpolation Processing
When scanning at higher resolution, the image quality tends to be reduced. This is because
one pixel output from the CCD is treated as two image data in the horizontal scanning
direction, and one line output of the CCD is treated as two image data in the vertical scanning
direction. The interpolation processing is performed to prevent the image quality reduction.
Figure 2-15 shows a change in image density by the interpolation processing.
A
(A)
B
(B)
C
(C)
D
Interpolation processing
A
(A+B)/2
B
(B+C)/2
C
(C+D)/2
D
Image
Density
1 pixel
Interpolation processing
Image
Density
1 pixel
Figure 2-15
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2 - 15
CHAPTER 2
2) Averaging
When scanning at lower resolution, the quality of output tends to be deteriorated. This is
because data thining occures more frequently at lower resolution. Averaging is a process to
average the data to be thinned and the data to be actually output to prevent the image
deterioration.
CCD
reading
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
B
C
D
E
F
G
H
data
Output
image
data
Thinned data
CCD
A
reading
data
Output
image
data
A'
E'
Averaged data=(A+B+C+D)/4
Figure 2-16
2 - 16
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2
IV. CONTROL SYSTEM
A. Control System Diagram
Host
Computer
Control
Program
USB
Controller
IEEE-1394
Controller
+12V
Analog
IC
ASIC
DRAM
Main PCB
AC Adapter
Scanning Unit
Inverter &
Scanning Lamp
Motor
Driver
Drive Motor
Figure 2-17
B. Main PCB
The scanner is not equipped with CPU. Control program in the device driver installed in the
host computer includes a control program works as CPU. Control program sends a command
to the ASIC in the main PCB, and the ASIC controls the entire scanning operation.
The main PCB consists of ASIC, DRAM, USB controller, analog I/C and motor driver.
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2 - 17
CHAPTER 2
V. INTERFACE
A. USB
1. Outline of USB standard
CanoScan 9900F employs USB2.0.
Features of USB include:
1. USB is an interface to connect peripheral devices to a host computer.
2. Tree-structure can connect 127 devices to a single host computer by using "hub".
3. USB has three data transfer modes including "full speed mode" at 12Mbps, "low speed
mode" at 1.5Mbps, and "high speed mode" at 480Mbps (new standard of USB 2.0.)
CanoScan 9900F supports USB2.0's "high speed mode".
4. Hot plug (connectable/disconnectable with power supplied) is available.
5. Power source is supplied via USB.
2. Signal Definitons
USB uses only two identification signal lines (D+ and D-) to communicate with the host
computer.
Pin
1
2
3
4
Shell
Chassis
Signal
VBUS
DD+
Signal GND
Chassis GND
2
3
1
4
Table 2-2
3. Interface Connection
USB connector has two plugs: A plug for upper layer and B plug for lower layer.
A Plug
To Host Computer
B Plug
To Scanner
Figure 2-18
2 - 18
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2
B. IEEE 1394
1. Outline of IEEE 1394 Standard
IEEE is a standard for high-speed serial interface called "Firewire" or "i.LINK"
Features of IEEE 1394 includes:
1. No host computer is necessary as communication between peripherals is possible.
2. IEEE uses daisy chain as a connection method, and maximum 63 connections are
possible.
3. IEEE transfers data with high-speed serial transfer with three kinds of transfer speed
including 100Mbit/s (noted as S100), 200Mbit/s (S200), and 400Mbit/s (S400).
CanoScan 9900F supports S100.
4. Hot plug is available.
5. Two kinds of connectors are available: 6-pin-connector with power supply and 4-pinconnector without power supply
2. Signal Definition
CanoScan 9900F uses 6-pin-connector as an interface.
PIN
1
2
3
4
5
6
SIGNAL
VBUS
GND
Data BData B+
Data AData A+
2
1
4
3
6
5
Table 2-3
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2 - 19
CHAPTER 2
VI. POWER SUPPLY
DC power is supplied from the supplied AC adapter. Through power regulator, four DC power
sources (+3.3V, +5V, +12V and +16.8V) are used in the circuit. +3.3V and +5V are supplied for
the digital circuit and linear chip, +5V is for the Analog IC and home position sensor, +16.8V is
for the CCD PCB, +12V is for the scanning lamp, and +24 for the motor drive.
Main PCB
24V
AC Adapter
12V
+3.3V Regulator
Digital Circuit
+5V Regulator
Home Position
Sensor
Analog IC
CCD PCB
16.8V to 12V
24V to16.8V
Regulator
Regulator
CCD
Drive
Motor
Motor Driver
+12V Regulator
Inverter
Scanning Lamp
FAU Lamp
Inverter
IR LED
FAU
Figure 2-19
2 - 20
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3
MECHANICAL SYSTEM
I.
PARTS REPLACEMENT .............. 3-1
E. Attaching the Front Panel ... 3-9
A. Precautions ......................... 3-1
III. PCBs ....................................... 3-11
II. EXTERNALS .............................. 3-2
A. Removing the Main PCB .... 3-11
A. Removing the Film Adapter Unit
IV. OPTICAL SYSTEM ................... 3-14
........................................... 3-2
A. Removing the Scanning Unit
B. Removing the Top Cover and the
......................................... 3-14
Document Glass Unit ........... 3-3
B. Removing the Motor Unit .. 3-22
C. Attaching the Top Cover ...... 3-4
C. Attaching the Motor Unit .. 3-23
D. Removing the Front Panel ... 3-5
COPYRIGHT  2003 CANON INC.
CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3
I. PARTS REPLACEMENT
A. Precautions
* Disconnect the AC adapter, USB cable, and FAU cable from the scanner before replacing the
parts.
* Wear anti-static gloves and grounding strap around the wrist during the work.
* Follow the instructions. Do not remove any screw from the parts that need no replacement.
* Store the removed parts in a clean place and do not displace them.
* Assemble the scanner by following the replacement procedures backward, unless otherwise
specified.
* After replacement, check the quantity and shape of the replaced parts.
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-1
CHAPTER 3
II. EXTERNALS
A. Removing the Film Adapter Unit
1) Disconnect the FAU cable.
2) Lift the film adapter unit as shown in Figure 3-1 to remove it.
1
2
q FAU Cable
w Film Adapter Unit
Figure 3-1
3-2
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3
B. Removing the Top Cover and the Document Glass Unit
1) Remove two screws that hold the Top Cover .
2) Remove the Top Cover by holding the front part of the cover and turning it toward the
outside.
1
2
3
3
q Screw
w Top Cover
e Hook
Figure 3-2
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-3
CHAPTER 3
3) Slide the document glass unit backward and lift it. Remove the glass from the scanner.
1
q Document Glass Unit
Figure 3-3
C. Attaching the Front Panel
1) Make sure that corners of the Top Cover and the Bottom Cover are aligned when screw them
to the scanner.
3-4
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3
D. Removing the Front Panel
1) Remove the Front Panel from the scanner.
(Refer to III-A Removing the Main PCB)
2) Remove the Top Cover and the Document Glass.
3) Remove the Carriage Unit and the Motor Unit
(Refer to IV OPTICAL SYSTEM)
4) Remove a long screw in the center and two short screws on the edge.
5) Press two hooks until they make a snapping sound.
1
2
3
2
q Hook
w Screw
e Long Screw
Figure 3-4
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-5
CHAPTER 3
6) Press two hooks on both sides of the front panel inward. Remove the front panel and the
button PCB unit from the main frame.
1
3
2
3
q Front Panel
w Button PCB Unit
e Hook
Figure 3-5
3-6
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3
7) Cut off cable bands and disconnect cables from the main frame. Remove the button PCB
unit.
1
q Cable Band
Figure 3-6
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-7
CHAPTER 3
8) Remove three screws and remove the button cable board.
1
2
3
q Screw
w Button PCB
e Lower Button Cover
Figure 3-7
3-8
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3
E. Attaching the Front Panel
1) Pass the button cables through the main frame.
2) Fix cables to the main frames with cable bands as shown in Figure 3-8
1
q Cable Band
Figure 3-8
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-9
CHAPTER 3
3) Attach the button PCB unit to the main frame.
4) Insert the hook of the front panel to the main frame as shown in Figure 3-9.
1
1
q Hook
Figure 3-9
5) Push the front part of the front panel until it makes a snapping sound.
3 - 10
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3
III. PCBs
A. Removing the Main PCB
1) Turn the scanner over and remove four screws.
1
2
q Screw
w Main PCB
Figure 3-10
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3 - 11
CHAPTER 3
2) Lift the main PCB as shown in Figure 3-11 and disconnect the button cable and the motor
unit cable.
2
1
q Motor Unit Cable
w Button Cable
Figure 3-11
3 - 12
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3
3) Turn the main PCB over. Remove screw that holds grounding and the flat cable.
Remove the main PCB from the main frame.
3
2
1
q Main PCB
w Flat Cable
e Screw
Figure 3-12
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3 - 13
CHAPTER 3
IV. OPTICAL SYSTEM
A. Removing the Scanning Unit
Note: Lens and mirrors of the scanning unit are factory adjusted.
Do not touch the lamp, mirrors, and CCD PCB (shaded area shown in Figure 3-13) of
the scanning unit.
Figure 3-13
3 - 14
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3
1) Remove the main PCB.
2) Remove the top cover and the document glass unit.
3) Remove two screws and remove the cable cover.
1
2
q Screw
w Cable Cover
Figure 3-14
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3 - 15
CHAPTER 3
4) Slide the scanning unit from the home position by holding the edge of the unit as shown in
Figure 3-15.
Figure 3-15
3 - 16
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3
5) Remove two screws that hold the gear plate 2 . Remove spring from the gear plate 2.
6) Remove screw that holds grounding.
2
1
3
4
q
w
e
r
Grounding Cable
Screw
Spring
Gear Plate 2
Figure 3-16
Note: When installing the gear plate 2, adjust the tension of the timing belt by spring
hooked on the gear plate. Then fasten the gear plate on the sliding rod with screws.
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3 - 17
CHAPTER 3
7) Remove two screws that hold the motor unit to the main frame.
2
1
q Grounding Cable
w Screw
Figure 3-17
3 - 18
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3
8) Push the sliding rod toward the front panel and slide the edge of the rod aside.
Figure 3-18
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3 - 19
CHAPTER 3
9) Slide the slidng rod backward and lift it as shown in Figure 3-19.
Disconnec the motor connector. Remove the sliding unit first and the scanning unit out of
the main frame.
1
2
3
q Document Scanning Unit
w Sliding Rod
e Motor Connector
Figure 3-19
3 - 20
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3
10) Remove the sliding rod and the timing belt from the scanning unit.
1
2
q Scanning Unit
w Sliding Rod
Figure 3-20
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3 - 21
CHAPTER 3
B. Removing Motor Unit
1)
2)
3)
4)
Remove
Remove
Remove
Remove
the main PCB.
the top cover and the document glass.
the scanning unit.
a screw that holds the sliding rod to the motor unit.
2
1
3
q Sliding Rod
w Screw
e Motor Unit
Figure 3-21
3 - 22
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3
C. Attaching the Motor Unit
1) Apply grease (EM-50L) to the shaft of the gear when attaching the motor unit to the main
frame. Make sure that no grease be applied to other parts.
Figure 3-22
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3 - 23
CHAPTER 4
MAINTENANCE AND SERVICING
I.
PERIODICAL REPLACEMENT
III. PERIODICAL SERVICING ........... 4-1
PARTS ....................................... 4-1
IV. SPECIAL TOOLS ........................ 4-1
II. CONSUMABLE PARTS
V.
SOLVENTS AND LUBRICANTS .... 4-1
DURABILITY .............................. 4-1
COPYRIGHT  2003 CANON INC.
CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 4
I. PERIODICAL REPLACEMENT PARTS
None
II. CONSUMABLE PARTS DURABILITY
None
III. PERIODICAL SERVICING
None
IV. SPECIAL TOOLS
None
V. SOLVENTS AND LUBRICANTS
Grease used for disassembly and reassembly of the scanner.
Name
Tool No.
Usage
: MOLYKOTE EM-50L
: HY9-0007
: To be applied to the shaft of the gear of the motor unit and pulley unit.
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
4-1
CHAPTER 5
TROUBLESHOOTING
I.
INTRODUCTION ........................ 5-1
C. Scanning Unit Movement Failure
A. Initial Check ....................... 5-1
........................................... 5-5
B. Others ................................. 5-1
D. Poor Image Quality .............. 5-5
II. TROUBLESHOOTING FLOWCHART
E. Acoustic Noise ..................... 5-5
........................................... 5-2
IV. CANON SCANNER TEST ............. 5-6
A. Power LED Failure ............... 5-2
A. Outline ................................ 5-6
B. Communication Failure ....... 5-3
B. Operating Environment ....... 5-6
III. PROBLEM, CAUSE AND
C. Functions ............................ 5-7
CORRECTIVE ACTION ............... 5-4
D. Functions Descriptions ....... 5-8
A. Power LED Not Lighting ....... 5-4
E. Error Message ................... 5-16
B. Communication Failure ....... 5-4
COPYRIGHT  2003 CANON INC.
CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5
I. INTRODUCTION
A. Initial Check
Check if the operating environment conforms to the following conditions.
*
*
*
*
*
Line voltage is within ±10% of the rated value.
Ambient temperature and humidity conform to the operating environment. (Refer to
CHAPTER 1, I. SPECIFICATIONS)
The scanner is not placed near a water faucet, boiler, humidifier, open flame, or in dusty
place.
The scanner is not exposed to direct sunlight. If it is inevitable to place the scanner in a
sunny place, hang a curtain to shield it from direct sunlight.
The scanner is set up in a well-ventilated place.
B. Others
When moving the scanner from a cold place to a warmer place, condensation may be formed
on the metal parts. Using the scanner with condensation on the body may result in a faulty
operation.
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
5-1
CHAPTER 5
II. TROUBLESHOOTING FLOWCHART
A. Power LED Failure
Unlock
Lock Switch
Connect
AC Adapter
No
Power LED is ON ?
Table 5-1
Yes
Connect
USB cable
Figure 5-2
Figure 5-1
5-2
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5
B. Communication Failure
Scan
Communication
Yes
Table 5-2
failed ?
No
Scanning Unit
failed to move ?
Yes
Table 5-3
No
Yes
Poor
Table 5-4
image quality ?
No
Acoustic noise
originated ?
Yes
Table 5-5
No
End
Figure 5-2
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
5-3
CHAPTER 5
III. PROBLEM, CAUSE AND CORRECTIVE ACTION
Defects of CanoScan 9900F may fall into one of five categories listed below:
*
*
*
*
*
Power LED not lighting
Communication failure
Scanning unit movement failure
Poor image quality
Acoustic noise
A. Power LED Not Lighting
Possible Cause
AC adapter is unplugged
Related Parts
Check Method
None
Visual check
Corrective Action
Plug the AC adapter into
the outlet
from the outlet
AC Adapter cable is
Visual check
None
Connect the AC adapter cable
to the power connector on the
disconnected from the scanner
scanner
AC adapter output voltage
AC Adapter
failure
Output voltage Replace the AC adapter
(+24V) check
Button PCB failure
Button PCB
Tester check
Replace the button PCB
Main PCB failure
Main PCB
Tester check
Replace the main PCB
(+24V, GND)
Main PCB connection failure
Visual check
None
Properly connect the main PCB
Table 5-1
B. Communication Failure
Possible Cause
USB cable connection failure
Related Parts
USB cable
Check Method
Visual check
Corrective Action
Connect the USB cable
properly
Scanner communication failure Main PCB
Scanning unit failure
Scanning unit
Trial replacement Replace the main PCB
Trial replacement Replace the scanning unit
Table 5-2
5-4
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5
C. Scanning Unit Movement Failure
Possible Cause
Related Parts
Check Method
Corrective Action
Drive belt broken or worn
Drive belt
Trial replacement Replace the drive belt
Gears broken or worn
Pulley Unit
Trial replacement Replace the pulley unit
Scanner button failure
Button PCB
Trial replacement Replace the button PCB
Drive motor failure
Motor unit
Trial replacement Replace the motor unit
Table 5-3
D. Poor Image Quality
Related Parts
Scanning lamp does not light Scanning unit
Possible Cause
Check Method
Visual check
Corrective Action
Replace the scanning unit
or blinks
Dirt on document glass
Main PCB failure
CCD PCB failure
Document glass Visual check
Clean the document glass
Main PCB
Trial replacement Replace the main PCB
Scanning unit
Trial replacement Replace the scanning unit
Table 5-4
E. Acoustic Noise
Possible Cause
Related Parts
Check Method
Corrective Action
Motor unit failure
Main PCB failure
Scanning unit failure
Dirt on sliding rod
Reference sheet is
improperly positioned
Motor unirt
Main PCB
Scanning unit
None
Document glass
Trial replacement
Trial replacement
Trial replacement
Visual check
Trial replacement
Replace the motor unit
Replace the main PCB
Replace the scanning unit
Clean the sliding rod
Replace the document glass
unit
unit
Table 5-5
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
5-5
CHAPTER 5
IV. CANON SCANNER TEST
A. Outline
Canon Scanner Test is a utility software to check if faulty operation of CanoScan 9900F is
caused by the hardware or the communication with the host computer.
Windows : scantest.exe (Use of an English version or a Japanese version is determined by the
Windows.)
Macintosh : chk9900e (English)
chk9900j (Japanese)
B. Operating Environment
The Canon Scanner Test requires following environment:
Windows platform
* CanoScan 9900F
* PC/AT Compatibles (Pentium or later)
* Windows 98/Me/2000/XP OS
* CanoScan 9900F Device Driver
Macintosh platform
* CanoScan 9900F
* Power Macintosh
* Macintosh OS (Version 9.0 - 9.2)
* CanoScan 9900F Device Driver
Note: Install CanoScan 9900F device driver before the Canon Scanner Test.
5-6
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5
C. Functions
1. USB Information (Windows only)
Information of the scanner connected to the USB port on the PC is displayed. If
communication between the scanner and the host computer fails, no information will be
displayed.
2. Scanner Information
Control program of CanoScan 9900F connected to the PC is displayed. If communication
between the scanner and the host computer fails, no information will be displayed.
3. Scanner Self Test
CanoScan 9900F self test is executed.
4. Scan
An image is scanned at any resolution and saved as an image file in the folder of Canon
Scanner Test.
5. Film Scan
Scann 35mm sleeve negative film by FAU lamp and scann it by IR LED with FARE function.
Save the two scanned images files in the folder of Canon Scanner Test. Scann one frame at
upper right in the sleeve film holder with resolution fixed at 1600dpi.
Note: Calibration cannnot be used with CanoScan 9900F. (Calibration function is in light
gray and unable to click it. )
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
5-7
CHAPTER 5
D. Functions Descriptions
1. USB Information (Windows only)
Select “USB Information” from the “Function” menu. The window shown in Figure 5-3 will
appear.
Figure 5-3
*
*
*
*
*
Vendor Description
Device Description
Port Name
Local Name
USB Version
5-8
:
:
:
:
:
Manufacture of the scanner, "Canon Inc."
Product name, "CanoScan 9900F"
Port name of the scanner recognized by Windows
Product name, "CanoScan 9900F"
USB version (USB1.1/USB2.0) that the scanner is operating with.
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5
2. Scanner Information
Select “Scanner information” from the “Function” menu The window shown in Figure 5-4
(Windows) or Figure 5-5 (Macintoch) will appear.
Figure 5-4
Figure 5-5
* Vendor ID
* Product ID
* ROM Version
: Manufacturer name of the scanner "CANON"
: "IX-32015H"(CanoScan 9900F)
: Firmware version of the control program of the scanner
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
5-9
CHAPTER 5
4. Scan
Select "Scan" from the "Function" menu. The window shown in Figure 5-6 (Window) or Figure
5-7 (Macintosh) will appear.
Figure 5-6
Figure 5-7
5 - 10
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5
Click "OK" to start scanner selftest. When completed normally, a dialog box shown in Figure
5-8 (Windows) or Figure 5-9 (Macintosh) will appear.
Figure 5-8
Figure 5-9
When an error occurs, refer to "E. Error Message" to take a corrective action.
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
5 - 11
CHAPTER 5
4. Scanning Original
Select “Scan” from the “Function” menu. The display will be either Figure 5-10 (Windows) or
Figure 5-11 (Macintosh).
Figure 5-10
Figure 5-11
5 - 12
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5
* Scan count
Set the number to be scanned ranging from 1 to 100.
* Resolution (dpi)
When the resolution for scanning an image is set at 67/200/400dpi, the entire area of
the document glass is scanned. When set at 800/1600/3200dpi, the are of 5mm
in width from the reference sheet of the document glass is scanned.
* Image handling
When “Read in memory (no file)” is selected, the image is read into the memory and be
destroyed.
When “Save to TIFF file” is selected, the image is stored in the file called “img0.tif” in the
folder of the Canon Scanner Test.
When scan count is set at 2 or larger number, the scanned images are saved in more than
one file including “img0.tif” file, “img1.tif” file , and “img2.tif” file.
File space to be saved is as follow:
67 dpi : 1.3MB, 200 dpi : 11.2 MB, 400 dpi : 44.9 MB
800 dpi : 2.4 MB, 1600 dpi : 9.7 MB, 3200 dpi : 29.3 MB
Note : Make sure that there are more disk space on HDD with Canon Scanner Test
installed than ones specified above before scanning.
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
5 - 13
CHAPTER 5
5. Film Scan
Select “Film Scan” from the “Function” menu. The window shown in Figure 5-12 (Windows)
or Figure 5-13 (Macintosh) will appear.
Figure 5-12
Figure 5-13
5 - 14
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5
Only an upper right frame of the 35mm sleeve film guide can be scanned (the first frame
shown in Figure 5-14.)
Figure 5-14
* Scan count
Set a number to be scanned ranging from 1 to 100. When 2 or larger number is set and "Save
to TIFF file" is selected, only a file of specified scanning is saved.
* Image handling
When “Read in memory (no file)” is selected, the image is read into the memory and be
destroyed.
When “Save to TIFF file” is selected, an image file scanned by FAU lamp and and an image file
scanned by IR LED are saved. The images scanned by FAU lamp is stored in "Color24_0.tif"
file, and the image scanned by IR LED is stored in "IR_0.tif" file. Both files are included in the
folder of the Canon Scanner Test.
IR.tif is an infrared image scanned with FARE function working. If FARE function works
normally, only dirt or dust on the film will be scanned as an image. If FARE function does not
work well, IR.tif image will be all in black.
When scan count is set at 2 or larger number, the scanned images are saved in more than
one file including Color24_0.tif/IR_0.tif, Color24_1. and tif/IR_1.tif.
File space to be saved is as follow.
Color24_0.tif (1600 dpi) : 10 MB, IR_0.tif (1600 dpi) : 3.3 MB
Note: When scanning a film, the color of the scanned image may appear lighter than that of
the original film. This is because the image is not subjec to the image processing yet.
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
5 - 15
CHAPTER 5
E. Error Message
1. “Unable to find the scanner. Check if the cables are connected properly.”
Cause : Scanner is not detected by the host computer.
Corrective Action : Refer to the “II. Troubleshooting Flowchart”.
2. “Failed to read scanner information.”
Cause : Scanner is not detected by the host computer.
Corrective Action : Refer to the “II. Troubleshooting Flowchart”.
3. “Failed to create a file.” “Failed to open a file.” “Failed to close a file.” “Failed to
write-in a file.”
Cause : Canon Scanner Test is started from a CD-ROM or write-protected HDD.
Corrective Action : Copy the Canon Scanner Test on a writable HDD to use.
4. “Scanner has problem.” “Failed to execute scanner self test.”
Cause : Scanner is not recognized by the host computer.
Corrective Action : Refer to the “II. Troubleshooting Flowchart”.
5. “Failed to allocate memory.”
Cause : Scanner is not recognized by the host computer.
Corrective Action : Refer to the “II. Troubleshooting Flowchart”.
5 - 16
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
PRINTED IN JAPAN (IMPRIME AU JAPON)
0203N0.03-1
CANON INC.
COPYRIGHT  2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)