Colortrac SmartLF Gx25m User manual








































             

   
C
Co ol lo or rt tr ra ac c i is s t th he e T Tr ra ad di in ng g N Na am me e o of f C Co ol lo or rt tr ra ac c L Lt td d a an nd d C Co ol lo or rt tr ra ac c I In nc c, , i in nc co or rp po or ra at ti in ng g T Ta an ng ge en nt t a an nd d A AN NA At te ec ch h. .
C
Co ol lo or rt tr ra ac c L Lt td d R Re eg gi is st te er re ed d n no o. . 2 24 44 43 30 08 87 7 i in n E En ng gl la an nd d. . R Re eg gi is st te er re ed d O Of ff fi ic ce e: : 1 11 15 5c c M Mi il lt to on n R Ro oa ad d, , C Ca am mb br ri id dg ge e, , U UK K

Notes:
Page 2 of 107
SmartLF Gx Service Manual
SmartLF Gx Scanners
Gx25m, Gx25c & Gx25e
Gx42m, Gx42c & Gx42e
GxT25m, GxT25c & GxT25e
GxT42m, GxT42c & GxT42e
Service Manual
Revision 2.0
©Colortrac Ltd 2008
This document should not be copied without
prior permission from:
Colortrac Ltd.
Kings Hall,
St. Ives Business Park,
St. Ives,
Huntingdon,
Cambridgeshire,
PE27 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.

Notes:
Page 3 of 107
SmartLF Gx Service Manual
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 Scanner Panels 7
5.1 Removing Left Hand End Cover 7
5.2 Removing Right Hand End Cover 8
5.3 Opening Rear Access Panel 9
5.4 Remove Rear Panel 10
5.5 Removing Paper Tray Extrusion and Support Extrusion 12
5.6 Removing Paper Tray 15
5.7 Removing Scan Glass 17
5.8 Removing Extrusion Covers 20
6 Replacing Scanner Components 23
6.1 Replacing Lamps 23
6.2 Replacing Main Board 26
6.3 Replacing PSU 30
6.4 Replacing Lamp Ballast Board 36
6.5 Replacing Main Timing Belt 40
6.6 Removing Drive Rollers 44
6.7 Replacing Paper Sensors 48
6.8 Replacing Camera Unit 49
6.8.1 Replacing Gx Camera Board 54
6.8.2 Aligning the Gx Camera 58
6.8.3 Focus of Gx Cameras 68
6.9 Replacing Control Board 71
6.10 Replacing The Paper Hold Down Roller 74
6.11 Setting up the Paper Hold Down Roller 80
6.12 Replacing the Right Hand Raising Lid Belt 81
6.13 Replacing the Left Hand Raising Lid Belt 87
7 Voltages 93
7.1 PSU Output 93
8 Utilities Software 94
8.1 Installation of the SmartLF Gx Utilities Program 94
8.2 Running the Utilities in the Engineering Menu 94
8.3 Normalisation 95
8.4 Auto / Manual Stitch 97
8.5 Motor Speed 104
8.6 USB 105
8.7 Updating the firmware & Driver 106

Notes:
Page 4 of 107
SmartLF Gx Service Manual
1 Introduction
1.1 Models covered by this manual
This manual contains information to assist in the repair and maintenance of the SmartLF Gx
scanners from Colortrac.
It acts as a reference to service engineers who are approved by Colortrac.
There are 12 models consisting of two types:
Standard lid (Gx)
Raising lid (GxT):
SmartLF Gx25m & GxT25m
Monochrome
Scan width of 25". Optical resolution of 1200 x 600dpi. Mono and Greyscale scanning only.
SmartLF Gx25c & GxT25c
Colour
Scan width of 25". Optical resolution of 1200 x 600dpi. RGB (24-bit and 48-bit captured),
Mono and Greyscale scanning at reduced speed.
SmartLF Gx25e & GxT25e
Enhanced
Scan width of 25". Optical resolution of 1200 x 600dpi. RGB (24-bit and 48-bit captured),
Mono and Greyscale scanning with enhanced speed.
SmartLF Gx42m & GxT42m
Monochrome
Scan width of 42". Optical resolution of 1200 x 600dpi. Mono and Greyscale scanning only.
SmartLF Gx42c & GxT42c
Colour
Scan width of 42". Optical resolution of 1200 x 600dpi. RGB (24-bit and 48-bit captured),
Mono and Greyscale scanning at reduced speed.
SmartLF Gx42e & GxT42e
Enhanced
Scan width of 42". Optical resolution of 1200 x 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 Gx range of
scanners. The GxT42e scanner was used for photos, and is representative of all the scanner
models, so images and component quantities may vary slightly for each model.

Notes:
Page 5 of 107
SmartLF Gx Service Manual
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. 1.5 mm 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:
•Serial Number
•Scanner Model and type (Gx or GxT, 25 or 42)
•Exact problem
•Firmware / driver version.
Contact numbers for the Technical Support Group:
Tel No: [phone]
Fax No: [phone]
E-mail address:
[email protected]
Support Downloads site:
www.colortrac.com/smartdownload
s
User name: smartlf
Password: support
Support FTP site:
www.colotracsupport.co.uk
user name: colortrac
password: service

Notes:
Page 6 of 107
SmartLF Gx Service Manual
4. Safety
4.1 Safety Warnings
ELECTRICAL
Do NOT remove covers 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 49Kg (without the stand, and 57Kg with
the stand) and is must have 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, could 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
 Gx model, have under gone and conform
to EMC and FCC .The EMC test is carried out to assure that no stray 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.

Notes:
Page 7 of 107
SmartLF Gx Service Manual
5 Removing Scanner Panels
5.1 Removing Left Hand End Cover
1. Remove the 5 x M5 pan head screws that hold the cover to
the scanner.
2. Remove the end cover and keep it in a safe place, along with
the 5 x M5 screw until re-assembling.

Notes:
Page 8 of 107
SmartLF Gx Service Manual
5.2 Removing Right Hand End Cover
1. Remove the 5 x M5 pan head screws holding the end cover to
the scanner
2. Remove the end cover and keep it in a safe place, along with
the 5 x M5 screw until re-assembling.

Notes:
Page 9 of 107
SmartLF Gx Service Manual
5.3 Opening Rear Access Panel.
Always disconnect the USB and power cable before carrying out
any work on the scanner.
1. Remove the 5 x M3 pan head screws that are holding the
panel in place. It is recommended that the central screw is the
last to be removed, and even then it is not full removed until
the access panel is supported.
2. Supporting the access panel with you hand, fully remove the
last screw and gently lower the panel down. Do not allow this
panel to drop down under it's own weight, as some cables
may be damaged by this action.

Notes:
Page 10 of 107
SmartLF Gx Service Manual
5.4 Removing Rear Panels.
1. Open rear access panel as described in chapter "5.3 Opening
Rear Access Panel" Page 9.
2. Remove the 9 x M3 black anodised screws from the back of
the scanner.
3. Remove the black rear panel and store in a safe place for re-
assembly.

Notes:
Page 11 of 107
SmartLF Gx Service Manual
4. Remove the 10 x M3 screws from inner rear panel
5. Remove the inner rear panel and store in a safe place for re-
assembly.

Notes:
Page 12 of 107
SmartLF Gx Service Manual
5.5 Removing Paper Tray Extrusion and Support Extrusion
1. Remove the Left Hand End cover as described in chapter 5.1
"Removing Left Hand End Cover" on page 7
2. Remove the Right Hand End Cover as described in chapter
5.2 "Removing Right Hand End Cover" on page 8
3. Remove the 2 x M5 pan head screw at the front of the Right
Hand end plate.
4. Remove the 2 x M5 pan head screws at the front of the Left
Hand end plate.

Notes:
Page 13 of 107
SmartLF Gx Service Manual
5. Remove paper tray extrusion from scanner and store in a safe
place to prevent damage until re-assembly.
6. To remove the paper tray support extrusion, first remove the 2
x M5 pan head screws from the Right Hand end plate.

Notes:
Page 14 of 107
SmartLF Gx Service Manual
7. Remove the 2 x M5 pan head screws from the Left Hand end
plate.
8. Remove the paper tray support extrusion and store in a safe
place to prevent damage until re-assembly.

Notes:
Page 15 of 107
SmartLF Gx Service Manual
5.6 Removing Paper Tray
1. Remove paper tray extrusion as described in chapter 5.5
"Removing Paper Tray Extrusion and Support Extrusion" page
12. The support extrusion may not need to be removed unless
it is being replaced.
2. Remove extrusion cover as described in chapter 5.8
"removing Extrusion Covers" page 20.
3. Remove the M5 pan head screw from the Left Hand end plate.
4. Using an extra long pozi-drive, carefully go between the
control panel and the display board and remove the M5 pan
head screw from the Right Hand end plate.

Notes:
Page 16 of 107
SmartLF Gx Service Manual
5. Remove the 5 x M5 pan head screw from along the top of the
extrusion that holds the paper tray to the scanner.
6. Completely remove the paper tray and store in a safe place to
prevent damage until re-fitting.

Notes:
Page 17 of 107
SmartLF Gx Service Manual
5.7 Removing Scan Glass.
1. Release the paper guide assembly by lifting the two catches at
either end.
2. Raise the PGA (paper guide assembly) open and secure with
the safe lever on the Left Hand side.

Notes:
Page 18 of 107
SmartLF Gx Service Manual
3. Using the special tool provided with every Gx scanner…..
4. … insert the tool at one end of the scan glass into the slots
near the glass.

Notes:
Page 19 of 107
SmartLF Gx Service Manual
5. Lift the glass up and out and store in a safe place to prevent
damage until re-fitting.
NOTE: If replacing the scan glass, slot the cleaned new piece in
place at this point making sure the edge with the largest chamfer
goes towards the front of the scanner. Then close the PGA down
and recalibrate the scanner using the utilities software.
Towards front of
scanner

Notes:
Page 20 of 107
SmartLF Gx Service Manual
5.8 Removing Extrusion covers.
1. Remove the scan glass as described in chapter 5.7
"Removing Scan Glass" page 17.
2. Remove 4 x M4 black pan head screw holding the cover over
both ends of the lamps, and remove covers at both ends,
storing them safely to prevent damage until re-fitting.
3. Place a cloth under the tip of a flat head screw driver and
position under the lip of the extrusion cover at one end.