Canon CanoScan 9950F User manual

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 products
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 MOTORUNIT
Apply grease to Motor
gear
MOLYKOTE
EM-50L
(HY9-0007)
Appro
x. 2
min
(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 precedent
model
1-5 Serial Number Indicating Location
Back side of the main doby
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
Replace AC ADAPTER
or replace MAIN PCB ASS’Y
Carriage does not operate Replace MOTOR ASS’Y
or replace MAIN PCB ASS’Y
Acoustic noise Eliminate the foreign substance
or replace MOTOR UNIT
or replace MAIN PCB ASS’Y
or replace CARRIAGE ASS’Y
Malfunction
Scanning lamp does not light up ReplaceCARRIAGE ASS’Y
or replace MAIN PCB ASS’Y
Blurred image Clean PLATEN GLASS ASS’Y
or replace CARRIAGE ASS’Y
or replace MAIN PCB ASS’Y
Solid vertical line Clean PLATEN GLASS ASS’Y
or replace CARRIAGE ASS’Y
Solid horizontal line Check the connection with PC
or replace USB cable
or replace MAIN PCB ASS’Y
Faulty scanned image
Faulty color reproduction Replace 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 Adjustment
/Setting up Verifying operation
MAIN PCB ASS’Y
(FE2-0205-000) Disconnectthepower cord,leavetheunitabout1
minute(to discharge the
stored charge of the
capacitor) and
dismount the part (to
prevent MAINPCBASS’Y
broken)
Enforce
scan operation
CARRIAGE ASS’Y
(FE2-0206-000) Be careful not to touch mirrors or CCD PCBs. Enforce scan operation
PLATEN GLASS ASS’Y
(FE2-0201-000) Be careful not to put dirt or fingerprint on the
document glass.
Enforce
visual inspection
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 drop down ferrite core to be broken.
Be careful not to let electrostatic break electric parts down.
Disconnect the power cord, leave the unit about 1 minute (to discharge the stored charge of the
capacitor) and dismount the part (to prevent MAINPCBASS’Y broken).
Do not stain inappropriate part with TIMING grease. Do not scratch or damage parts and
the unit.
Be careful not to damage or stain external cover.
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) Refer to the below <Check Program Operation>
Scanner Information Refer to the below <Check
Program Operation>
Scanner Self Test Refer to the below <Check
Program Operation>
Scan Refer to the below <Check
Program Operation>
Film Scan Refer to the below <Check
Program Operation>
<Canon Scanner Test functions>
1) Interface Information (Windows only)
Select “Interface Information” form the “Function” menu. The belown shown
window will appear.
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 below shown window
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

3) Scanner Self Test
Select “Scanner Self Test” from the “Function” menu. The below shown window will
appear.
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. Scanner is not connected to the host computer.
Scanner driver is not installed
on the host computer.
Install scanner driver on
the host computer, and
connect the scanner to
the host computer.
Unable to find the scanner. Check if
the cables are connected properly. Scanner is not connected to the host computer. Refer to “Service Troubleshooing by
Symptom”
Failed to read scanner information Scanner is not properly
connected to the host
computer.
Refer to “Service
Troubleshooing by
Symptom”
Failed to create a file.
Failed to open a file.
Canon Scanner Test is started
from a CD-ROM or
write-protected HDD.
Copy the Canon
Scanner Test on a
writable HDD to use.
Scanner has problem.
Failed to execute scanner self test. Scanner is not recognized by the host computer. 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 Feature
(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, and it is contributing swiften film scan.
(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
scan Calibration is not
executed
Execute calibration Solid vertical line on the
image
2 B operation Acoustic noise when
the power turned on
Lock switch is not
released
Release the lock switch Acoustic noise
3 A scan Thumbnail does not
display normally
Film scan
Film scan with overexposure /
underexposure films
Film images are not
recognized as images.
Set Thumbnail “OFF” and
scan
Thumbnail does not appear
* 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.
2 - 2