Colortrac SmartLF Cx40m User manual

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Cx40 Service Manual
Page 2 of 80
SmartLF Cx40 Scanner
Cx40m, Cx40c & Cx40e
Service Manual
Revision 1.0
©Colortrac Ltd 2006
This document should not be copied without
prior permission from:
Colortrac Ltd.
Kings Hall,
St. Ives Business Park,
St. Ives,
Huntingdon,
Cambridgeshire,
PE17 4WY.
United Kingdom.
Tel: [phone]
Fax: [phone]
www.colortrac.com
Colortrac Ltd makes no warranty with respect to this document and disclaims any implied warranties of
merchantability or fitness for a particular purpose. Information in this document is subject to change
without notice. Colortrac Ltd assumes no responsibility for errors that may appear in this document.

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Cx40 Service Manual
Page 3 of 80
Contents
Chapter Description Page
1 Introduction 4
1.1 Models Covered By This Manual 4
2 Tools Required 5
3 How To Contact Technical Support 5
4 Safety 6
4.1 Safety Warnings 6
4.2 EMC Testing 6
5 Removing & Replacing Panels From Scanner 7
5.1 Removing The Left Hand Cover 7
5.2 Removing The Right Hand Cover 8
5.3 Opening Access Panel 9
5.4 Removing Top Lid Cover 11
5.5 Removing Paper Guide Assembly 15
5.5.1 Replacing Paper Guide Assembly 16
6 Replacing Boards And Components 20
6.1 Replacing Control Panel Or Display Board 20
6.2 Replacing Scan Glass Or CIS 26
6.3 Removing Combined Main Board 36
6.3.1 Inserting Combined Main Board 37
6.4 Removing PSU From Scanner 40
6.4.1 Inserting PSU 43
6.5 Replacing The Main Timing Belt 47
6.6 Replacing Paper Hold Down Roller 49
6.7 Replacing Pinch Roller Assembly 54
6.8 Replacing Motor 60
6.9 Replacing Drive Rollers and Paper Sensor Cables 63
7.0 Replacing Paper Sensors 75
8 Fault Analysis 79

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Cx40 Service Manual
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1 Introduction
1.1 Models covered by this manual
This manual contains information to assist in the repair and maintenance of the SmartLF
scanners from Colortrac.
It acts as a reference to service engineers who are approved by Colortrac.
There are 3 models:
SmartLF Cx40m
Monochrome
Scan width of 40” with handling for 44” media width. Optical resolution of 600dpi. Mono
and Greyscale scanning only.
SmartLF Cx40c
Colour
Scan width of 40” with handling for 44” media width. Optical resolution of 600dpi. RGB
(24-bit and 48-bit captured), Mono and Greyscale scanning at reduced speed.
SmartLF Cx40e
Enhanced
Scan width of 40” with handling for 44” media width. Optical resolution of 600dpi. RGB
(24-bit and 48-bit captured), Mono and Greyscale scanning with enhanced speed.
This manual shows how to replace the boards that make up the SmartLF Cx scanners.

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2 Tools Required.
To work on the SmartLF scanners, certain tools will be required. See list below. The
acquisition of these tools is strongly recommended.
1. Medium sized Pozi-drive screwdriver
2. 5.5mm Nut Spinner.
3. 7mm Nut-spinner.
4. 1mm Allen Key
5. 2.5mm Allen Key
6. Cleaning fluid
7. Lint free wipes
Services CD's are available from the Colortrac support department. Please send an e-mail to
the support address (see below) giving company name and address to send disk to. These
CD’s are ONLY available for approved engineers and will NOT be issued to end-users
3 How to contact Technical Support
Although Colortrac technical support group will do their best to help any service engineer in
difficulties in the field, we accept no responsibility if a non-approved distributor/engineer
damages any part of the scanner during a field visit. Or if an end user removes any panels
under instruction from a distributors engineer or on his own accord.
When contacting support with a support issue, please include the following with initial e-mail:
•Scanner .dat file created as described in ‘SmartLF CxUtils’ program, this is important as it
contains ALL the information the support department needs to analyse the problem
•Serial Number
•Exact problem
Contact numbers for the Technical Support Group:
Tel No: [phone]
Fax No: [phone]
E-mail address:
[email protected]
Support site:
www.colortrac.com/smartdownload
s
Contact [e-mail] for user name and password.

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Cx40 Service Manual
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4. Safety
4.1 Safety Warnings
ELECTRICAL
Do NOT remove this cover from the scanner while it is turned on or
operate the scanner with this cover removed
It is very important to allow the scanner to discharge before removing cover
and the boards. The boards can hold a charge and can give a shock if
touched.
MECHANICAL
The mechanism that operates the lid and the paper handling assembly
can trap fingers please handle with care
WEIGHT
Since the weight of the scanner is approximately 26.5Kg (without the stand, and 34.8kg with
the stand) and is recommend a minimum of two people to lift it safely.
ROTATING ROLLERS
The scanner operates two sets of rollers to move the image across the scanner.
These rollers, will grip ties and any other similar articles of clothing, as well as long
hair if put near the rollers during operation.
4.2 EMC Testing
All Colortrac scanners, which includes the
 model, have under gone and conform to
EMC and FCC .The EMC test is carried out to assure that no signals that could cause
interference are emitted from the scanner or that no external signal will interfere with the
scanner. See back for full information.
NOTE: PLEASE FOLLOW ANTI-STATIC PRECAUTIONS AT ALL
TIMES WHEN HANDLING COLORTRAC AND  BOARDS.

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5 Removing and Replacing Panels from the Scanner.
5.1 Removing The Left Hand End Cover.
To remove the Left Hand end cover, that covers the control panel of the
scanner:
1. Remove the 5 x M5 Pan Head Screws holding end cover to the
scanner.
2. Remove the end cover and keep it, with the 5 x screws, in a safe
place ready for re-assembling.

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5.2 Removing The Right Hand End Cover.
To remove the Right Hand end cover, that covers the control panel of the
scanner:
1. Remove the 5 x M5 Pan Head Screws holding the end cover to the
scanner.
2. Remove the end cover and keep it, with the 5 x screws, in a safe
place ready for re-assembling.

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5.3 Opening Access Panel.
To open the rear access panel to be able to get to the Main Processor
board and the PSU (power supply unit):
1. Unplug mains lead and USB Connector.
2. Remove the 8 x M3 Black Anodised Pan Head screws holding the
rear panel in place. Make sure you are holding the panel up as you
remove the last screw.

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3. Gently lower the panel down. The panel is hinged so will not need
to be totally removed.
4. Make sure that none of the cables are being pulled tight or have
caught on anything while in the lowered position.

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5.4 Removing Top Lid Cover.
To remove the top lid cover to gain access to the inside of the paper
guide assembly:
Remove the top cover to gain access to the pinch rollers and paper hold
down rollers.
1. Open paper guide assembly by releasing the 2 x latches at either
end.
2. Lift the whole paper guide assembly.

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3. Prop the lid open with the safety lever. On the Left Hand side of
scanner.
4. Use a pozi-drive screw driver, remove the 2 x countersunk screws
at either end on the paper guide assembly.

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5. Completely remove the lid cover to reveal the inner cover plate.
6. Release the safety lever and gently lower paper guide assembly.

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7. Remove the 14 x pan head screws from the inner cover plate.
8. Store the cover plates somewhere to avoid damage until needed
from re-assembling.
9. Re-assembly in reverse order.

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5.5 Removing Paper Guide Assembly.
To completely remove paper guide assembly:
1. Remove the Left Hand end cover as in chapter 5.1 page 7.
2. Remove the Right Hand end cover as in chapter 5.2 page 8
3. Using a flat head screwdriver, loosen the hinge pins on either side
of the paper guide assembly.
4. Remove the hinge pin out of the paper guide assembly and store
safely.

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5. Lift the complete paper guide assembly out of the scanner, and
store safely to prevent damage.
6. Replace as described in chapter 5.5.1 page16
5.5.1 Replace the Paper Guide Assembly.
1. Make sure the safety lever is moved across the front of the paper
tray so that it is not in the way when placing paper guide assembly
back in place.

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2. Position the paper guide assembly back on to the scanner. Make
sure the levers are at the front and the hinge is at the back.
3. Make sure the front levers are on top of the locking pin before fixing
the paper guide assembly into place.

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4. The holes in the paper guide assembly needs to be in-line with the
threaded bush of the scanner end cast for the hinge pin to go
through. Using a screwdriver through the hole, move the holes in
line with each other.
5. Reinsert the hinge pins at either end of the paper guide assembly.

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6. Tighten hinge pin using flat screwdriver.
7. Replace the Left Hand end cover in the reverse order of chapter
5.1 Page 7.
8. Replace the Right Hand end cover in the reverse order in chapter
5.2 Page 8.

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6 Replacing Boards and Components.
6.1 Replacing Control Panel or Display Board
1. Remove the Right Hand end cover as shown in Chapter 5.2 page
8.
2. To remove display board, first disconnect the ribbon cable at the
front of board.
3. Remove the 4 x M3 nuts underneath the display board using the
5.5mm nut-spinner. Being careful to catch and retrieve the spacers
that will drop as the board is removed.