Canon CS 9950F Service Manual

CS 9950F

SER VICE
MANUAL

Canon

Copyright 2004, Canon U.S.A. This technical publication is the proprietary and confidential information of Canon U.S.A. which
shall be retained for reference purposes by Authorized Service Facilities of Canon U.S.A. Its unauthorized use is prohibited.

CanoScan 9950F
SERVICE MANUAL

REVISION 0

JY8-1323-000

COPYRIGHT2004 CANON INC. CANON CanoScan 9950F 082004

Application

This manual has been issued by Canon Inc. to provide information necessary to self-study
techniques, setting-up, maintenance and repair to technicians who service the target products. This
manual covers all locations where the target products are sold. For this reason, there may be
information in this manual that does not apply to your locality.

Revision

This manual might include technically incorrect descriptions or misprints because the target produ cts
may be improved or changed. For this reason, service information is being published in case of any
changes in this manual. If this manual is having a significant change, in long or in short term, a
revised edition will be carried out.

The following paragraph does not apply to any countries where such provisions are inconsistent with
local law.

Trademarks

The product names and company names described in this manual are the registrered trademarks or
tradmards of the individual companies.

Copyright

The copyright of this manual belongs to Canon Inc. Under the copyright law, this manual may not

be copied,reproduced or translated into another language, in whole or in part, without the written
consent of Canon Inc., always excepting the cases where copying a part of this manual is needed
by business necessity.

Copyright 2004 by Canon Inc.
Canon Inc.
Ink Jet Scanner Quality Assurance Division
5-1, Hakusan 7-Chome, Toride-City, Ibaraki 302-8501, Japan

I. Outline

This manual is provided into 4 sections providing each necessary information to service the target
product.

Part 1: Maintenance
Maintenance and repair related information of the target product

Part 2: Technical references
Technical matters such as new techniques and FAQ of the target product

Part 3: Parts catalog
Parts catalog of the target product

Part 4: Appendix
Block diagrams and specifications of the target product

II. Content

Page Part 1: Maintenance

1 - 1 1. Maintenance
1 - 1 1-1 Service Engineer adjustment/Periodic Replacement/Periodic Inspection/Replacement of

Consumable
1 – 1 1-2 Customer Maintenance
1 – 1 1-3 Product Life
1 – 1 1-4 Special Tools
1 – 1 1-5 Serial Number Indicating Location
1 – 2 2. Service Troubleshooting by Symptom
1 – 2 2-1 Service Troubleshooting by Symptom
1 – 3 3. Servicing
1 – 3 3-1 Advisory for Replacement of Service Part
1 – 4 3-2 Instruction for Servicing

(1) Mounting Carriage Unt
(2) Mounting Button Circuit Board

(3) Grease Applying Position
1 – 6 4. Canon Scanner Test
1 –12 5. TransPort

Page Part 2: Technical Reference

2 – 1 1. New Features
2 – 2 2. Product FAQ

Page Part 3: Parts Catalog

3 – 1 Figure 1 Cable
3 – 3 Figure 2 MAIN BODY

Page

Part 4: Appendix

4 – 1 1. Block Diagram
4 – 2 2. Specifications

Part 1

Maintenance

1. Maintenance

1-1 Service Engineer Adjustment/Periodic Replacement/Periodic

Inspection/Replacement of Consumable

(1) Adjustment

item period purpose tool time

Apply grease Replacing MOTOR UNIT

(2) Periodic Inspection

item period purpose tool Time

N/A

(3) Periodic Replacement

item period purpose tool Time

N/A

(4) Replacement of Consumable

item period purpose tool Time

N/A

1-2 Customer Maintenance

item period purpose tool Time

N/A

1-3 Product Life

(1) Main Body

Scan Count:30,000 scan

1-4 Special Tools

Name Tool Number Purpose remarks

MOLYKOTE
EM-50L

HY9-0007-000 Apply to Motor gear sliding part Diverted from

1-5 Serial Number Indicating Location

Back side of the main body

Apply grease to Motor
gear

MOLYKOTE
EM-50L
(HY9-0007)

precedent
model

Appro
x. 2
min

1 - 1

2. Service Troubleshooting by Symptom

2-1 Service Troubleshooting by Symptom

symptom Action Remarks

Unit does not turn the power on
Spontaneously shuts down right
after turned on

Malfunction

Carriage does not operate Replace MOTOR ASS’Y

Acoustic noise Eliminate the foreign substance

Scanning lamp does not light up

Faulty scanned image

Blurred image Clean PLATEN GLASS ASS’Y

Solid vertical line Clean PLATEN GLASS ASS’Y
Solid horizontal line Check the connection with PC

Faulty color reproduction

Replace AC ADAPTER
or replace

or replace
or replace MOTOR UNIT

or replace
or replace

ReplaceCARRIAGE ASS’Y

or replace

or replace
or replace

or replace CARRIAGE ASS’Y
or replace USB cable

or replace
Replace

MAIN PCB ASS’Y

MAIN PCB ASS’Y

MAIN PCB ASS’Y
CARRIAGE ASS’Y

MAIN PCB ASS’Y
CARRIAGE ASS’Y

MAIN PCB ASS’Y

MAIN PCB ASS’Y

MAIN PCB ASS’Y

1 - 2

3. Servicing

3-1 Advisory for Replacement of Service Part (also for disassembly and assembly)

Replacing Service Part Note for replacement*1

MAIN PCB ASS’Y
(FE2-0205-000)

CARRIAGE ASS’Y
(FE2-0206-000)

Disconnect the power
cord,leave the unit about 1
minute (to discharge the
stored charge of the
capacitor) and
dismount the part (to
prevent MAIN PCB ASS’Y
broken)

Be careful not to touch

mirrors or CCD PCBs.

Adjustment

/Setting up

Enforce

Enforce

Verifying operation

scan operation

scan operation

PLATEN GLASS ASS’Y
(FE2-0201-000)

1:Note for entire work

Have a careful look on the wiring arrangement of flexible cable and harness, and
connection of connectors. [Refer to 3-2 Instruction for Servicing (1) Wiring arrangement
of flexible cable and harness, and connection of connectors]

Be careful not to put dirt

or fingerprint on the
document glass.

Enforce

visual inspection

1 - 3

3-2 Instruction for Servicing

1) Mounting Carriage unit
When Carriage unit is being mounted, be careful definitely not to touch CCD nor Lamp.

2) Mounting Button circuit board
Ferrite core is placed at the end of the Button circuit board. When Button circuit board is being

mounted, push Ferrite core toward backside of main body and then mount Button circuit board.

1 - 4

3) Grease applying position

Part Position Grease/Oil Dose

MOTOR ASS’Y 1 Motor gear sliding part MOLYCOTE EM-50L 1/2 rice-grain

amount

Note: 1 rice-grain amount : 9 - 18mg

1 - 5

4. Canon Scanner Test

Functions Procedure Remarks

Interface information
(Windows only)

Scanner Information Refer to the below <Check
Scanner Self Test Refer to the below <Check
Scan Refer to the below <Check
Film Scan Refer to the below <Check

<Canon Scanner Test functions>

1) Interface Information (Windows only)
Select “Interface Information” form the “Function” menu. The screen
below will appear.

Refer to the below <Check
Program Operation>

Program Operation>
Program Operation>
Program Operation>
Program Operation>

Vender Description

Manufacturer name of the scanner, “Canon Inc.”

Device Description

Product name

Port Name

Port name of the scanner recognized by Windows

Local Name

Product name

USB Version

USB version

1 - 6

2) Scanner Information
Select “Scanner Information” from the “Function” menu. The screen
below will appear.

Vender ID

Manufacturer name of the scanner “Canon”

Product ID

Scanner name “IX-48015H(CanoScan 9950F)”

ROM Version

Firmware version of the control program of the scanner

1 - 7

appear.

3) Scanner Self Test

Select “Scanner Self Test” from the “Function” menu. The screen below will

Click “OK” to start scanner self test. When completed normally, a dialog box shown
below will appear.

When an error occurs, refer to “6.Error Message” to take a corrective action.

1 - 8

4) Scanning Original

Select “Scan” from the “Function” menu. The display will appear.

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 75/150/300/600dpi, the entire
area of the document glass is scanned. When set at 1200/2400dpi, the area of
10mm 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.tit” file, and “img2.tif” file.

File space to be saved is as follow:
75 dpi : 1.6MB

150 dpi : 6.6MB
300 dpi : 26MB
600 dpi : 105MB
1200 dpi : 15MB
2400 dpi : 59MB

1 - 9

5) Film Scan

Select “Film Scan” from the “Function” menu. The window shown below will appear.
Only an upper right frame of the 35mm sleeve film guide can be scanned.

Scan count

Set a number to be scanned ranging from 1 to 100.

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 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.

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 subject to the image
processing yet.

1 - 10

6) Error Message

Indication Cause Corrective Action
Canon Scanner Test does not
activate.

Unable to find the scanner. Check if
the cables are connected properly.

Failed to read scanner information Scanner is not properly

Failed to create a file.
Failed to open a file.

Scanner has problem.
Failed to execute scanner self test.

Scanner is not connected to the
host computer.
Scanner driver is not installed
on the host computer.
Scanner is not connected to the
host computer.

connected to the host
computer.
Canon Scanner Test is started
from a CD-ROM or
write-protected HDD.
Scanner is not recognized by
the host computer.

Install scanner driver on
the host computer, and
connect the scanner to
the host computer.
Refer to “Service
Troubleshooing by
Symptom”
Refer to “Service
Troubleshooing by
Symptom”
Copy the Canon
Scanner Test on a
writable HDD to use.
Refer to “Service
Troubleshooing by
Symptom”

1 - 11

5. Transport

When a unit, such as after repairing, is being transported, it needs a few cares in preparation for

transport.

1) Turn on the power switch of scanner and return Carriage unit to home position.

2) Move the lock switch to ON side to fix Carriage unit.

3) Fix the scanner body with tape. [See the figure below]
Note:Use a fixing tape almost equivalent to the polyester one used for shipping product.

(A tough, not easily peelable tape which would not leave its glue after peeled. )

1 - 12

Part 2

Technical Reference

1. New Features (1) 30 frames continuous scan (35mm strip film)

Maximum 30 frames of 35mm strip film (6 frames x 5 strips) is available with a continuous scan,
and maximum 12 frames for 35mm slide film.

(2) 2 kinds of film guide (for 120 format)

2 kinds of film guide for 120 format are accompanied.

One of the 120 format exclusive use guide deals with wide films: maximum 22 cm
The other one which deals with maximum 6 x 9cm film helps to scan the image evenly.

(3) Mobile light source system FAU

Newly adopted Mobile light source system FAU enabled to acquire twice light amount than ever
before.

(4) FARE Level 3

Backlight correction function is newly added to FARE and it has become FARE Level 3.

2 - 1

2. Product FAQ (Particular problems and their corrective actions)

Item Frequency* Function Symptom Condition Cause Corrective action Expected Call/Complaint

1 B scan Solid vertical line on

the image

2 B operation Acoustic noise when

the power turned on

3 A scan Thumbnail does not

display normally

* Occurrence frequency

A: Comparatively high frequency is possible (caution needed)
B: Possibly occurs under a certain condition, but actually the frequency is expected to be very low.
C: Not recognizable to general users and so harmless level is expected.

scan Calibration is not

executed
Lock switch is not

released
Film scan
Film scan with overexposure /
underexposure films

Film images are not

recognized as images.

Execute calibration Solid vertical line on the

image

Release the lock switch Acoustic noise

Set Thumbnail “OFF” and
scan

Thumbnail does not appear

2 - 2

CanoScan 9950F SPECIFICATIONS
<Scanner Main Unit>

Type Flatbed image scanner
Image sensor 6-line CCD
Optical resolution 4800dpi x 9600dpi

Light source White cold cathode fluorescent lamp

Document type Sheet, Book
Document alignment position Right-end corner

Max. document size A4/Letter size (216mm x 297mm)
Image mode
Preview time Approximately 3.6 sec

Color 16-bit input for RGB each, 16-bit/8-bit output
Grayscale 16-bit input, 8-bit output

Scanning time
(Color)

Scanning time
(Gray)

Power supply AC adapter

Interface
Scanner button 4 buttons (COPY, SCAN, PDF, MAIL) on the scanner unit
Operating environment

Power source

Power consumption

Dimensions 290 x 509 x 128mm
Weight Approximately 5.8kg

1 1.0 msec/line

1 1.0 msec/line

UB2.0 Hi-Speed
USB Full-Speed (USB1.1 equivalent)
IEEE1394a (Macintosh only)

Temperature: 10 to 35 degrees
Relative humidity: 10 to 90RH (Non condensing)
Air pressure: 613-1013hPa
100-120V 50/60Hz
220-240V 50/60Hz
During operation: 28W
During standby: 6W
During power off: 0.1W(100V), 0.3W(200V)

4 - 2

<Film Scanning Part>

Light source Cold cathode fluorescent lamp

FARE FARE Level 3

35mm strip

Film size

Image mode
Optical resolution 4800 x 9600 dpi

Scanning time 5.5-80 msec/line
Operating

environment

35mm slide
120 format (Maximum 6 x 22cm)

4”x 5”
16-bit input for RGB each, 16-bit/8-bit output
Grayscale 16bit input, 16bit/8bit output

Temperature: 10 to 35 degrees

Relative humidity: 20 to 80%RH (Non condensation)

4 - 3