Page 1
CS9900F
SER VICE
MANUAL
Canon
Page 2
SERVICE
MANUAL
REVISION 0
CanoScan 9900F
JPN 8132A001AA
USA 8132A002AA
EUR 8132A003AA UYW000001UK 8132A004AA
AUS 8132A005AA
CAN/CLA 8132A006AA
FEB. 2003
JY8-1322-00Z
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 3
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)
Page 4
CONTENTS
CHAPTER 1 : GENERAL DESCRIPTIONS
I. SPECIFICATIONS....................... 1-1
II. PARTS CONFIGURATION ........... 1-2
A. Front View .......................... 1-2
B. Back View ........................... 1-4
III. SETTING UP THE SCANNER ...... 1-5
A. Precautions ......................... 1-5
CHAPTER 2 : OPERATION AND TIMING
I. BASIC OPERATION .................... 2-1
A. Functions............................ 2-1
B. Electrical System ................ 2-2
C. Main PCB Input and Output. 2-4
D. Document Scanning Sequence
........................................... 2-5
B. Unlocking the Lock Switch .. 1-6
C. Connecting the Cables ......... 1-6
D. Scanning ............................. 1-8
IV. CUSTOMER’S DAILY MAINTENANCE
......................................... 1-12
III. IMAGE PROCESSING ............... 2-12
A. Outline .............................. 2-12
B. Image Processing ............... 2-13
IV. CONTROL SYSTEM .................. 2-20
A. Control System Diagram .... 2-20
B. Main PCB .......................... 2-20
II. OPTICAL SYSTEM ..................... 2-6
A. Outline ................................ 2-6
B. Lamp Lighting Circuit ......... 2-7
C. FARE (Film Automatic Retouch-
ing and Enhancement) ......... 2-9
D. Motor Control Circuit ........ 2-11
CHAPTER 3 : MECHANICAL SYSTEM
I. PARTS REPLACEMENT .............. 3-1
A. Precautions ......................... 3-1
II. EXTERNALS .............................. 3-2
A. Removing the Film Adapter Unit
........................................... 3-2
B. Removing the Top Cover and
Document Glass Unit ........... 3-3
V. INTERFACE ............................. 2-21
A. USB ................................... 2-21
B. IEEE 1394 ......................... 2-24
VI. POWER SUPPLY....................... 2-24
E. Attaching the Front Panel ...3-9
III. PCBs ....................................... 3-11
A. Removing the Main PCB .... 3-11
IV. OPTICAL SYSTEM ................... 3-14
A. Removing the Scanning Unit,
Pulley Unit, and Motor Unit 3-14
B. Removing the Motor Unit .. 3-22
C. Attaching the Top Cover...... 3-6
D. Removing the Front Panel ... 3-7
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
C. Attaching the Motor Unit .. 3-23
Page 5
CHAPTER 4 : MAINTENANCE AND SERVICING
I. PERIODICAL REPLACEMENT
PARTS ....................................... 4-1
II. CONSUMABLE PARTS
DURABILITY .............................. 4-1
CHAPTER 5 : TROUBLESHOOTING
I. INTRODUCTION ........................ 5-1
A. Initial Check ....................... 5-1
B. Others ................................. 5-1
II. TROUBLESHOOTING FLOWCHART
........................................... 5-2
A. Power LED Failure ............... 5-2
B. Communication Failure ....... 5-3
III. PROBLEM, CAUSE AND
CORRECTIVE ACTION ............... 5-4
A. Power LED Not Lighting....... 5-4
B. Communication Failure ....... 5-4
III. PERIODICAL SERVICING ........... 4-1
IV. SPECIAL TOOLS ........................ 4-1
V. SOLVENTS AND LUBRICANTS .... 4-1
C. Scanning Unit Movement Failure
........................................... 5-5
D. Poor Image Quality .............. 5-5
E. Acoustic Noise ..................... 5-5
IV. CANON SCANNER TEST ............. 5-6
A. Outline ................................ 5-6
B. Operating Environment ....... 5-6
C. Functions ............................ 5-7
D. Functions Descriptions ....... 5-8
E. Error Message ................... 5-18
CHAPTER 6 : PARTS CATALOG
FIGURE 001 .............................. 6-2
APPENDIX
I. GENERAL CIRCUIT DIAGRAM .... A-1
II. MAIN PCB CIRCUIT DIAGRAM ... A-2
COPYRIGHT 2002 CANON INC. CANOSCAN 8000F REV.0 OCT. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
FIGURE 100 .............................. 6-4
III. CCD PCB CIRCUIT DIAGRAM ... A-11
Page 6
CHAPTER 1
GENERAL DESCRIPTIONS
I. SPECIFICATIONS....................... 1-1
II. PARTS CONFIGURATION ........... 1-2
A. Front View .......................... 1-2
B. Back View ........................... 1-3
III. SETTING UP THE SCANNER ...... 1-4
A. Precautions ......................... 1-4
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
B. Unlocking the Lock Switch .. 1-4
C. Connecting Cables ............... 1-5
D. Scanning ............................. 1-6
IV. CUSTOMER’S DAILY MAINTENANCE
........................................... 1-9
Page 7
I. SPECIFICATIONS
Scanner Main Unit
Type : Flatbed image scanner
Scanning Part
Image sensor : 14,240-pixel 6-line CCD
Light source : Cold cathode fluorescent lamp
Document type : Sheet, Book
Document alignment position : Right-end corner
Max. document size : A4/Letter size (216 x 297mm)
Image output mode : Color 16-bit/ 8-bit for RGB each
Grayscale 16-bit/ 8-bit
Optical resolution : 3200 dpi x 6400 dpi
Scanning time : 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)
CHAPTER 1
Film Scanning Part
Film type : Color and monochrome, negative and positive
Film size : 35mm sleeve (6 frames x 8)
35mm slide mount (24 frames)
Brownie
4X 5 inch
Light source : Cold cathode fluorescent lamp
IR LED (for FARE function)
Scanning time : USB2.0/IEEE1394:2.16-138.24msec/line
USB1.1:2.16-146.88ms/line
(automatically selected depending on films)
Interface Part
Interface : USB connector (Universal Serial Bus 2.0)
IEEE-1394 connector
Power connector (for AC adapter)
FAU connector (6-pin)
Front Panel
Scanner button : 4 buttons (COPY, SCAN, FILE, E-MAIL) on the scanner
unit
Others
Operating environment : Temperature : 10 to 35 degrees
Relative humidity : 10 to 90%RH
Air pressure : 613 to 1013 hPa
Power source : 100V to 120V
220V to 240V
Power consumption : 21W max. (during operation)
8W (during standby)
Dimensions : 290.0 (Width) x 509.0 (Depth) x 127.3 (Height) mm
Weight : Approximately 5.3kg
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
1 - 1
Page 8
CHAPTER 1
II. PARTS CONFIGURATION
A. Front View
4
1
2
3
5
q Document Cover
w Protective Sheet
e Film Adapter Unit
r Document Glass
t COPY Button
y SCAN Button
u FILE Button
i E-MAIL Button
o Alignment Mark
!0 Lock Switch
10
6
7
8
9
1 - 2
Figure 1-1
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 9
B. Back View
CHAPTER 1
1
2
3
4
5
q Power Connector
w FAU Cable
e FAU Connector
r IEEE-1394 Connector
t USB Connector
Figure 1-2
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
1 - 3
Page 10
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.
q Lock Switch
Figure 1-3
Note : Ensure to lock the lock switch during transport.
1
1 - 4
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 11
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.
6
q USB Connector
w IEEE-1394 Connector
e Power Connector
r USB Cable
t IEEE-1394 Cable
y AC Adapter
1
2
3
4
5
Figure 1-4
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
1 - 5
Page 12
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.
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
1 - 6
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 13
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
Page 14
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)
Page 15
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
Page 16
CHAPTER 2
OPERATION AND TIMING
I. BASIC OPERATION .................... 2-1
A. Functions ............................ 2-1
B. Electrical System ................ 2-2
C. Main PCB Input and Output. 2-4
D. Document Scanning Sequence
........................................... 2-5
II. OPTICAL SYSTEM ..................... 2-6
A. Outline ................................ 2-6
B. Lamp Lighting Circuit ......... 2-7
C. FARE (Film Automatic Retouching
and Enhancement) .............. 2-9
D. Motor Control Circuit ........ 2-11
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
III. IMAGE PROCESSING ............... 2-12
A. Outline .............................. 2-12
B. Image Processing ............... 2-12
IV. CONTROL SYSTEM .................. 2-17
A. Control System Diagram .... 2-17
B. Main PCB .......................... 2-17
V. INTERFACE ............................. 2-18
A. USB ................................... 2-18
B. IEEE 1394 ......................... 2-19
VI. POWER SUPPLY....................... 2-20
Page 17
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
Host
Computer
Control
System
BGR
Lamp
B
G
R
CCD
FARE Unit
Figure 2-1
Scanning Unit
Lens
Image Processing System
Optical System
Drive Motor
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2 - 1
Page 18
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
+24V
AC adapter
Scanning
Lamp
Inverter
PCB
CCD
PCB
FARE
Unit
J2
JP1
Regulator
Analog IC
USB
Controller
JP9
JP9
ASIC
IEEE-1394
Controller
JP9JP9
Home
Position
Sensor
DRAM
Motor
Driver
J1
JP2
JP8
FAU
Inverter
PCB
FAU Lamp
Button PCB
Scanner Button
Power LED
Drive
Motor
2 - 2
Figure 2-2
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 19
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
CHAPTER 2
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
Page 20
CHAPTER 2
C. Main PCB Input and Output
AC Adapter
Scanning Unit
J2-1
JP1-1
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
-21
-22
-23
-24
-25
-26
-27
-28
-2
-3
-4
-5
-2
-3
-4
-5
-6
-7
-8
-9
+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
Main PCB
XPA
FAU_LED
FAU_DET
NC
LMP_PWR
XPAGND
NC
XPAGND
Vbus
D+
GND
VP
VG
TPBN
TPB
TPAN
TPA
J1-1
-2
-3
-4
To Film Scanning
-5
Unit
-6
-7
-8
JP9-1
D-
-2
To Host
-3
Computer
-4
JP9-1
-2
To Host
-3
Computer
-4
-5
-6
COPY
SCAN
FILE
E-MAIL
Power
LED
Home Position
Scanner
Button PCB
Sensor
Drive motor
button
Power Switch
JP2-1
JP6-1
-2
-3
-4
-5
-6
-7
-8
-2
-3
-4
HOTKEY0
HOTKEY1
HOTKEY2
HOTKEY3
LED
DGND
DGND
PWRSW
OUT1B
OUT1A
OUT2A
OUT2B
"H" when Scanner button is
pressed
"H" when power LED is ON
"H" when scanning unit is in
home position
Drive motor drive signal
2 - 4
Figure 2-3
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 21
D. Document Scanning Sequence
1. Document Scanning Sequence
Scan Command
CHAPTER 2
Home Position
Sensor
Scanning Lamp
ON Signal
Drive Motor
Interface Signal
Seqence
Sequence
Standby
(Scans 9 lines for
RGB each)
Operation
Setup
Figure 2-4
Scanning Unit forward
Purpose
Scanning Unit
backward
Standby
Remarks
Standby
Setup
Scanning Unit
Forward
Scanning Unit
backward
After the scanner self test is
completed until the scanner
receives a scan command from
the host computer
From the scanner receives a
scan command until it starts
scanning
After the scanner starts scanning
until whole scan area specified
by the host computer is scanned
After the scanning unit starts
moving backward until it returns
to the home position
To maintain the scanner ready
for scan
To execute calibration for setting
light exposure time, gain data and
shading data
To execute image processing
according to the command from
the host computer while scanning
and send imada data to the
host computer
To return the scanning unit to the
home position to ready for the
next scan
Table 2-1
The data is stored in DRAM
Home position is detected
by the home position sensor
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2 - 5
Page 22
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.
Scanning Lamp
CCD
Lens
FARE Unit
Figure 2-5
2 - 6
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 23
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
Host
Computer
Main PCB
ASIC
Lens
LAMP
FARE Unit
GND
Scanning Lamp
CCD
PCB
GND
CCD
Scanning Unit
Inverter
PCB
Figure 2-6
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2 - 7
Page 24
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.
Host
Computer
FAU
Inverter PCB
Scanner
XPA
Main PCB
FAU Lamp
IRLED
IRLED
ASIC
Reflective Film
Light Guide Plate
1st Diffusive Film
Brightness
Enhancement Film
2nd Diffusive Film
Transparent Plate
Scanning Unit
2 - 8
Figure 2-7
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 25
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.
Light
Source
Film
Lens
CCD
Scanned
Image
(FAU LAMP)
(IR LED)
Figure 2-8
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2 - 9
Page 26
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
Film
Lens
Refraction Glass
(FARE Unit)
CCD
FAU Lamp
IR LED IR LED
Figure 2-9-1 Figure 2-9-2 Figure 2-9-3
2 - 10
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 27
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
ASIC
Main PCB
I01
I02
I11
I12
I21
I22
I31
I32
Motor
Driver
Figure 2-10
OUT1B
OUT1A
OUT2A
OUT2B
JP8-1
-2
-3
-4
Drive Motor
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2 - 11
Page 28
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.
2 - 12
Figure 2-12
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 29
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
Analog IC
A/D Converter
Digital data
To ASIC
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
Blue Image Signal
Green Image Signal
Red Image Signal
Reference Voltage
+5V
A/D Converter
CCD_B
CCD_G
CCD_R
Vref
Output
Vcc
01
01
01
01
01
01
01
01
Figure 2-14
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2 - 13
Page 30
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)
Page 31
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
Image
Density
Image
Density
BCD(A+B)/2 (B+C)/2 (C+D)/2
1 pixel
Interpolation processing
1 pixel
Figure 2-15
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2 - 15
Page 32
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
data
Output
image
data
ABCD
A
Thinned data
BCD
EFGH
EFGH
CCD
reading
data
Output
image
data
ABCD
A'
Averaged data=(A+B+C+D)/4
EFGH
E'
Figure 2-16
2 - 16
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 33
IV. CONTROL SYSTEM
A. Control System Diagram
Host
Computer
Control
Program
CHAPTER 2
B. Main PCB
USB
Controller
DRAM
Main PCB
IEEE-1394
Controller
ASIC
Motor
Driver
Drive Motor
Analog
IC
Figure 2-17
+12V
AC Adapter
Scanning Unit
Inverter &
Scanning Lamp
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
Page 34
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
Signal
V
BUS
D-
D+
Signal GND
Chassis GND
Chassis
12
34
Table 2-2
3. Interface Connection
USB connector has two plugs: A plug for upper layer and B plug for lower layer.
2 - 18
A Plug
To Host Computer
B Plug
To Scanner
Figure 2-18
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 35
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
BUS
V
GND
Data B-
Data B+
Data A-
Data A+
42
1365
Table 2-3
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
2 - 19
Page 36
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
+5V Regulator
24V to16.8V
Regulator
Motor Driver
+12V Regulator
Inverter
Digital Circuit
Home Position
Sensor
Analog IC
Scanning Lamp
CCD PCB
16.8V to 12V
Regulator
Drive
Motor
CCD
2 - 20
Inverter
FAU Lamp
IR LED
FAU
Figure 2-19
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 37
CHAPTER 3
MECHANICAL SYSTEM
I. PARTS REPLACEMENT .............. 3-1
A. Precautions ......................... 3-1
II. EXTERNALS .............................. 3-2
A. Removing the Film Adapter Unit
........................................... 3-2
B. Removing the Top Cover and the
Document Glass Unit ........... 3-3
C. Attaching the Top Cover...... 3-4
D. Removing the Front Panel ... 3-5
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
E. Attaching the Front Panel ... 3-9
III. PCBs ....................................... 3-11
A. Removing the Main PCB .... 3-11
IV. OPTICAL SYSTEM ................... 3-14
A. Removing the Scanning Unit
......................................... 3-14
B. Removing the Motor Unit .. 3-22
C. Attaching the Motor Unit .. 3-23
Page 38
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
Page 39
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.
q FAU Cable
w Film Adapter Unit
2
1
3 - 2
Figure 3-1
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 40
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.
q Screw
w Top Cover
e Hook
2
3
3
Figure 3-2
1
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3 - 3
Page 41
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)
Page 42
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
CHAPTER 3
q Hook
w Screw
e Long Screw
3
2
Figure 3-4
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3 - 5
Page 43
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
q Front Panel
w Button PCB Unit
e Hook
2
3
Figure 3-5
3 - 6
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 44
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
Page 45
CHAPTER 3
8) Remove three screws and remove the button cable board.
1
2
q Screw
w Button PCB
e Lower Button Cover
3
Figure 3-7
3 - 8
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 46
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
CHAPTER 3
q Cable Band
Figure 3-8
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3 - 9
Page 47
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)
Page 48
III. PCBs
A. Removing the Main PCB
1) Turn the scanner over and remove four screws.
CHAPTER 3
1
q Screw
w Main PCB
2
Figure 3-10
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3 - 11
Page 49
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)
Page 50
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
Page 51
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)
Page 52
1) Remove the main PCB.
2) Remove the top cover and the document glass unit.
3) Remove two screws and remove the cable cover.
CHAPTER 3
q Screw
w Cable Cover
1
2
Figure 3-14
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3 - 15
Page 53
CHAPTER 3
4) Slide the scanning unit from the home position by holding the edge of the unit as shown in
Figure 3-15.
3 - 16
Figure 3-15
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 54
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 Grounding Cable
w Screw
e Spring
r 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
Page 55
CHAPTER 3
7) Remove two screws that hold the motor unit to the main frame.
2
q Grounding Cable
w Screw
1
Figure 3-17
3 - 18
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 56
8) Push the sliding rod toward the front panel and slide the edge of the rod aside.
CHAPTER 3
Figure 3-18
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
3 - 19
Page 57
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
q Document Scanning Unit
w Sliding Rod
e Motor Connector
3
Figure 3-19
3 - 20
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 58
10) Remove the sliding rod and the timing belt from the scanning unit.
1
2
CHAPTER 3
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
Page 59
CHAPTER 3
B. Removing Motor Unit
1) Remove the main PCB.
2) Remove the top cover and the document glass.
3) Remove the scanning unit.
4) Remove a screw that holds the sliding rod to the motor unit.
2
q Sliding Rod
w Screw
e Motor Unit
3
1
Figure 3-21
3 - 22
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 60
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
Page 61
CHAPTER 4
MAINTENANCE AND SERVICING
I. PERIODICAL REPLACEMENT
PARTS ....................................... 4-1
II. CONSUMABLE PARTS
DURABILITY .............................. 4-1
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
III. PERIODICAL SERVICING ........... 4-1
IV. SPECIAL TOOLS ........................ 4-1
V. SOLVENTS AND LUBRICANTS .... 4-1
Page 62
I. PERIODICAL REPLACEMENT PARTS
None
II. CONSUMABLE PARTS DURABILITY
None
III. PERIODICAL SERVICING
None
IV. SPECIAL TOOLS
CHAPTER 4
None
V. SOLVENTS AND LUBRICANTS
Grease used for disassembly and reassembly of the scanner.
Name : MOLYKOTE EM-50L
Tool No. : HY9-0007
Usage : 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
Page 63
CHAPTER 5
TROUBLESHOOTING
I. INTRODUCTION ........................ 5-1
A. Initial Check ....................... 5-1
B. Others ................................. 5-1
II. TROUBLESHOOTING FLOWCHART
........................................... 5-2
A. Power LED Failure ............... 5-2
B. Communication Failure ....... 5-3
III. PROBLEM, CAUSE AND
CORRECTIVE ACTION ............... 5-4
A. Power LED Not Lighting....... 5-4
B. Communication Failure ....... 5-4
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
C. Scanning Unit Movement Failure
........................................... 5-5
D. Poor Image Quality .............. 5-5
E. Acoustic Noise ..................... 5-5
IV. CANON SCANNER TEST ............. 5-6
A. Outline ................................ 5-6
B. Operating Environment ....... 5-6
C. Functions ............................ 5-7
D. Functions Descriptions ....... 5-8
E. Error Message ................... 5-16
Page 64
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
Page 65
CHAPTER 5
II. TROUBLESHOOTING FLOWCHART
A. Power LED Failure
Unlock
Lock Switch
Connect
AC Adapter
Power LED is ON ?
No
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)
Page 66
B. Communication Failure
CHAPTER 5
Scan
Communication
failed ?
No
Scanning Unit
failed to move ?
No
Poor
image quality ?
No
Yes
Table 5-2
Yes
Table 5-3
Yes
Table 5-4
Acoustic noise
originated ?
No
End
Yes
Table 5-5
Figure 5-2
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
5 - 3
Page 67
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
from the outlet
AC Adapter cable is
disconnected from the scanner
AC adapter output voltage
failure
Button PCB failure
Main PCB failure
Main PCB connection failure
B. Communication Failure
Possible Cause Related Parts
USB cable connection failure
Scanner communication failure
Scanning unit failure
Related Parts
None
None
AC Adapter
Button PCB
Main PCB
None
Table 5-1
USB cable
Main PCB
Scanning unit
Check Method
Visual check
Visual check
Output voltage
(+24V) check
Tester check
Tester check
(+24V, GND)
Visual check
Check Method
Visual check
Trial replacement
Trial replacement
Corrective Action
Plug the AC adapter into
the outlet
Connect the AC adapter cable
to the power connector on the
scanner
Replace the AC adapter
Replace the button PCB
Replace the main PCB
Properly connect the main PCB
Corrective Action
Connect the USB cable
properly
Replace the main PCB
Replace the scanning unit
5 - 4
Table 5-2
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 68
C. Scanning Unit Movement Failure
Possible Cause Related Parts Check Method Corrective Action
Drive belt broken or worn
Gears broken or worn
Scanner button failure
Drive motor failure
Drive belt
Pulley Unit
Button PCB
Motor unit
D. Poor Image Quality
Trial replacement
Trial replacement
Trial replacement
Trial replacement
Table 5-3
CHAPTER 5
Replace the drive belt
Replace the pulley unit
Replace the button PCB
Replace the motor unit
Possible Cause
Scanning lamp does not light
or blinks
Dirt on document glass
Main PCB failure
CCD PCB failure
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
Related Parts
Scanning unit
Document glass
Main PCB
Scanning unit
Table 5-4
Motor unirt
Main PCB
Scanning unit
None
Document glass
unit
Check Method Corrective Action
Visual check
Visual check
Trial replacement
Trial replacement
Trial replacement
Trial replacement
Trial replacement
Visual check
Trial replacement
Replace the scanning unit
Clean the document glass
Replace the main PCB
Replace the scanning unit
Replace the motor unit
Replace the main PCB
Replace the scanning unit
Clean the sliding rod
Replace the document glass
unit
Table 5-5
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
5 - 5
Page 69
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)
Page 70
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
Page 71
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 : Manufacture of the scanner, "Canon Inc."
* Device Description : Product name, "CanoScan 9900F"
* Port Name : Port name of the scanner recognized by Windows
* Local Name : Product name, "CanoScan 9900F"
* USB Version : USB version (USB1.1/USB2.0) that the scanner is operating with.
5 - 8
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 72
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 : Manufacturer name of the scanner "CANON"
* Product ID : "IX-32015H"(CanoScan 9900F)
* ROM Version : 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
Page 73
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
5 - 10
Figure 5-7
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 74
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
Page 75
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
5 - 12
Figure 5-11
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 76
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
Page 77
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
5 - 14
Figure 5-13
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 78
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
Page 79
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)
Page 80
PRINTED IN JAPAN (IMPRIME AU JAPON) 0203N0.03-1
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
CANON INC.
Loading...