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2-6

Design MG52D

CIS Construction, Electronic

CIS Unit.

Warning: The CIS unit is factory mounted and designed to be disassembling further than replacing

Scanner Control Unit, Paper/Lid sensors, Glass plate and USB cable.

Ignoring this warning may cause failures that can not be corrected in the field.

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Содержание XD2490

Страница 1: ...Technical Service Guide for XD2490 FSM TSG 002 1 1 ...

Страница 2: ...Revision table 1 0 Original Issue of Document October 9th 2009 CDM 1 1 New illustrations Text December 1st 2009 CDM ii ...

Страница 3: ...al evalu ation This restriction does not limit the Recipients right to use information contained in the data if it is obtained from another source without restriction Document Title MG52D Technical Service Guide Doc No FSM TSG 001 Prepared by CDM Authorized by JR Distribution Tegningsarkiv Svendborg Issue revision date 1 1 1st December 2009 Scanners covered by this Service Guide MG52D XD2490 iii ...

Страница 4: ... Sequence 3 2 Dust problems 3 3 Stitching problems 3 3 Banding problems 3 4 Image quality problems 3 4 Part Replacement MG52D 4 1 Identifying parts 4 2 Complete list of parts 4 3 Scanner Control Unit SUL 4 4 Operators Panel and RHS cover 4 5 Power Supply 4 5 CIS Unit 4 6 USB Cable 4 6 Stepper Motor Assy 4 7 Belt Tension 4 8 Tacho Sensor 4 8 LHS End Cover 4 9 Gas Spring for CIS Unit 4 10 Paper and ...

Страница 5: ... v Appendix B B 1 Firmware Download walk through B 1 Appendix C C 1 Scanner Terms C 1 Appendix D D 1 Error Codes D 1 ...

Страница 6: ...vi ...

Страница 7: ... 1 1 Introduction Introduction to CIS Technology CIS Element CIS Element buildup Focus Light 1 1 Introduction 1 1 Introduction Example of a CIS Element Contact Image Sensor ...

Страница 8: ...ual Monochrome sensors The purpose of the lens is to channel the light from the pixels on the image to the sensors There is no magnification in the lens 1x1 1 2 Introduction 1 2 Introduction The LEDs flash one at the time capturing one color at a time Due to the very short focal length the focus depth is limited The original has to be in contact with the surface of the glass plate in order to be i...

Страница 9: ... 2 1 Design MG52D Design MG52D Electronics Block Diagram Wire Diagram Circuit board layout s CIS Construction ...

Страница 10: ...2 2 Design MG52D Block Diagram ...

Страница 11: ... 2 3 Design MG52D Wiring Diagram ...

Страница 12: ... points SMPS Voltage on CN2 can be measured while connected or disconnected CN2 GND pin 1 2 pin 3 4 24V 2V Scanner Control Unit layout and measuring points SUL SUL Board Markings From Factory When Replaced MG52D SULxdd SULFdd Where dd Board Revision no ...

Страница 13: ... Value TP1 Main 5 V 5 TP2 VCC 5 V 5 TP3 VCC 12 V 5 TP6 VCC 2 5 V 5 TP7 VCC 1 8 V 5 TP8 VCC 3 3 V 5 TP15 VTT 0 9 V 5 Measured to ground J8 pin 3 VCC Voltage at the Common Collector positive electrical connection VTT Voltage Termination ...

Страница 14: ...IS Unit Warning The CIS unit is factory mounted and designed to be disassembling further than replacing Scanner Control Unit Paper Lid sensors Glass plate and USB cable Ignoring this warning may cause failures that can not be corrected in the field ...

Страница 15: ...ore replacing any electrical parts such as SUx Scanner Control Unit or the CIS Unit the parameter block should be erased and the scanner calibrated This will solve the problem in most cases especially if the reported problem is about image quality or identifying the calibration sheet The Pressure Rollers and the Glass Plate should also be inspected for wear and tear ...

Страница 16: ...g Troubleshooting Sequence This is a suggested Trouble shooting Sequence and will work in most cases There are always some gray zones espe cially if the problem is related to image quality See Appendix C for Error Codes ...

Страница 17: ...t related to HW errors but are instead related to either in sufficient cleaning bad calibration or limitations of the CIS technology Strikes that run in scan direction witch that come and goes during the scan is like to be dust Clean scanner and original The strikes are often a darker shade of the color Strikes that run in scan direction that are color dependent or a lighter shade of the color are...

Страница 18: ...ner is often taken as a defect on the scanner where it is actually a limitation of the used technology Due to the very short dis tance from sensor to surface of the original also called Focal Length we also have a very short Focus Depth meaning if the original is NOT in contact with the glass plate it is very likely to be out of focus Image quality problems ...

Страница 19: ...ly Stepper Motor Assy Paper Sensor Power Entry Module Mechanics Gas Spring for CIS Unit Identifying parts Complete list of parts Tools needed Torx 9 Straight Torx 10 Straight Torx 15 Straight Angled Torx 20 Straight Angled Torx 25 Straight Torx 30 Straight Wrench 5 5 mm Wrench 7 0 mm Slotted 0 6 x 10 x 75 mm ...

Страница 20: ...4 2 Part replacement MG52D 4 2 Part replacement MG52D Identifying parts ...

Страница 21: ...263D017R01 Stepper Motor Assy x 4 06 4 Stepper Motor x Rubber Damper x 0090B087R01 USB Cable x 4 12 4 0075A050R01 Tacho Sensor x 4 08 4 0075A160R01 Paper Lid Sensor 1 pcs x 4 07 4 5229A031R02 Pressure Rollers 3 pcs x 4 09 4 6705D264R01 Gas Spring for CIS Bridge x 4 11 4 5202D009R01 Cover Assy Contex x 4 10 4 Operators Panel including Ribbon cable 5202A003R01 LHS End Cover x 4 13 4 Consumables 5229...

Страница 22: ...Scanner off and disconnect from power source and PC prior to any repair 1 Unplug Cables 2 Release lock tabs and remove cover Install the new SUL board and reverse the steps Type in the serial no in Scantest clean the scanner and run scanner Maintenance 1 Unplug Ribbon Cables by releasing the black lock on the CIS connectors 2 Remove screws and remove SUL board ...

Страница 23: ... back the ribbon cable with the Opera tors Panel 1 Remove screws while holding the cover Replace the Operators Panel and RHS cover and reverse steps Remove RHS cover see page 4 5 Power Supply Switch Scanner off and disconnect from power source and PC prior to any repair 1 Disconnect Cables 2 Remove screws Install the new Power Supply reverse the steps Allow the Power Supply to discharge by waiting...

Страница 24: ...see page 4 4 1 Unplug Cables 2 Remove screws Pull USB and Keypad cable back in HW box pull Power Motor and Sensor cables out with the CIS unit 1 Release connector lock under cable 2 Pull out USB cable Pull carefully the USB cable out and into the HW box module and disconnect cables USB Cable Switch Scanner off and disconnect from plower source and PC prior to any repair Open CIS unit see page 4 24...

Страница 25: ...page 4 5 Stepper Motor Assy Switch Scanner off and disconnect from power source and PC prior to any repair 1 Loosen screw 2 Release tension on belt by lifting upward and tighten nut again 3 Disconnect cable 4 Remove screws and motor 1 Remove screws 2 Remove motor mount Install the new Motor and reverse the steps Adjust Belt tension see page 4 8 ...

Страница 26: ...C prior to any repair 1 Disconnect Cable 2 Loosen screw and remove metal plate 3 Remove metal plate 4 8 Part replacement MG52D Belt Tension To insure correct belt tension 1 Loosen screw torx15 2 Let spring apply correct tension 3 Turn belt wheel 1 4 1 2 turn 4 Tighten screw again Remove RHS cover see page 4 5 Tilt open CIS unit ...

Страница 27: ...o Sensor and reverse the steps 1 Release locks 2 Carefully tilt the sensor out LHS End Cover Switch Scanner off and disconnect from power source and PC prior to any repair 1 Remove Screws 2 Remove LHS Cover Replace LHS Cover and reverse the steps ...

Страница 28: ...essure on Gas Spring 3 Remove Screws 4 Remove Gas Spring Remove LHS cover see page 4 9 Click open CIS Unit so it stand in a vertical position Replace Interconnection Board and reverse steps Interconnection Board Switch Scanner off and disconnect from power source and PC prior to any repair 1 Disconnect ribbon cable 2 Release lock and pull out flex cable 3 Remove screws Remove RHS cover see page 4 ...

Страница 29: ...t from power source and PC prior to any repair 1 Remove Screws to access Exit and Lid Sensor remover roller cover 2 Remove screws to access Entry sensors remover roller cover 1 Disconnect the sensor 2 Remove the screw Replace the sensor and reverse the steps Click open CIS Unit so it stand in a vertical position ...

Страница 30: ...k tabs in 2 Push Power entry module slightly out Repeat the for other side and pull out module and disconnect cables Install the new Power Entry module reverse the steps Pressure Rollers Switch Scanner off and disconnect from power source and PC prior to any repair 1 Pull out Pressure Roller Replace Pressure Roller and reverse the steps 1 Remove screws and pull out Pressure Roller cover ...

Страница 31: ...lk though Description of each individual test in SCANtest Since this chapter is not scanner specific some of the illustrations may apply completely to the scanner you are working on like number of CIS element and transition areas ...

Страница 32: ...s panel will flash one at a time Test 3 Key Test The Paper LED will light up when a button is pressed Test 4 Original Sensor Test The Paper LED will light up when one of the paper or the lid sensors is activated CIS lid need to be open block sensor with finger one by one Overview of tests in SCANtest Note Before running any tests make sure the CIS Unit in closed position and that there is no docum...

Страница 33: ... data from the CIS module Corrected light profile shows the cali brated data See note about dpi B 5 Test 11 Stitching Vertical Align Allow you to adjust either Alignment or Stitching between 2 CIS modules 1 Select Alignement or Stitching 2 Select the transition area AB BC 3 Use the arrows to either increase or decrease the value If the DPI is changed it requires a rescan See note B 5 Alignment hav...

Страница 34: ...A 4 Appendix A Test 12 Adjust Y axis Scaling Here can the X and Y scaling be ad justed Scan a known size image measure in Nextimage compare and adjust The correction is done in of the deviation ...

Страница 35: ...create a still picture of what the CIS elements is looking at The generated SCANdump con can extracted and view with SCANtest installed SCANdump is a very use full tool when a problem is being escalated to support 600 dpi and 1200 dpi scan modes The CIS module is able to scan in binning mode When scanning resolution between 1200 and 600 dpi it uses the 1200 dpi scan mode When scanning at 600 dpi o...

Страница 36: ...A 6 Appendix A ...

Страница 37: ... the downloaded file The name on the downloaded file will change according to the firmware version The latest Firmware can be obtained from www contex com Identify the scanner model and download 1 Verify the firmware version 2 Press Download 3 Press YES if you want to continue to Upgrade the Firmware 4 Press OK to proceed Example of firmware file ...

Страница 38: ... the Firmware has started Download process can be followed in the window Firmware download has completed successfully 5 Press Exit After Firmware Upgrade Downgrade the scanner firmware it is important to run Scanner Maintenance ...

Страница 39: ...gy that allows the scanner pressure platen to be raised to accommodate thick originals and then lowered both actions performed by pressing a key from the operators panel Sensors in the platen detect when perfect pressure is applied to the the original and automatically stop the downwards motion of the platen so it rests on the original with an optimal grip Bitmap An image format made from a matrix...

Страница 40: ...f color options The number of potential color options for a pixel is called color bit depth For example a 4 bit pixel would have 16 color options and an 8 bit pixel would have 256 color options while a 24 bit pixel would have 16 777 216 color options Color Cast An image is said to have a color cast if its colors are not true A color cast will usually be described by stating the particular color pr...

Страница 41: ...h dpi A measure of dots in a square inch where the individual ele ment is a round dot on the printed page DPI Dots Per Inch equivalent to Pixels Per Inch An expression of resolution of a scanned image DSP Digital Signal Processor does image enhancement in real time while scanning Dual 2D Adaptive Enhancement Enhancement processing on the foreground and background separately Processing is performed...

Страница 42: ...tensity of light illuminat ing the object Hue A named color In discussions of color that relate to photogra phy scanning and printing six hues are especially important red yellow green cyan blue and magenta These hues make up every color we can see and are the designated hues on color wheels Hue is also a measurement of color that can be related by pointing towards a certain color on the color whe...

Страница 43: ...e set of colors available for an image PICT A file format for pictures used primarily on the Macintosh Pixels Per Inch ppi A measurement of resolution for scanners where the individu al element is a square picture element pixel Pixels The word pixel is a combination of the two words picture and element It is the smallest building block within a scanned line art or photographic image A pixel is the...

Страница 44: ...ore intense than the same color with less Scale To reduce or enlarge the size of a picture proportionally Scanner Calibration A program that helps adjust the scanner to achieve stable colors and work with a printer Calibration gives better scan ning results The program should be run whenever changing printing equipment toner and inks and whenever getting poor results when printing pictures Screen ...

Страница 45: ...sents the dark portions of a picture and an upward bend will typically lighten the shadows Similar capabilities exist by working with the middle or highlight parts of the curve In this way it is possible to alter only certain tonal ranges of an image without making un wanted changes to other parts of the image Tone Any color or neutral that is denser than white True color True color systems provid...

Страница 46: ... Z have been standardized by the CIE based on statistics from experiments involving human observers XYZ tri stimulus values can describe any color Zoom The ability to enlarge or shrink the view of the picture in a window Zoom does not alter the size of the final scanned pic ture it only provides a better view while creating a selection border on the screen ...

Страница 47: ...or 55 121 Description Unknown error Corrective Action Try the following Restart the system System Error 55 302 Description Failed to initialize Basic Calibration Corrective Action Try the following Check sheet pressure rollers and glass plate Clean if needed System Error 55 319 Description The calibration sheet was not recognized as the right sheet for this scanner Corrective Action Try the follow...

Страница 48: ...ile is not accessible Corrective Action Try the following If you have received a new Calibration Sheet please allow application to find reference file over the internet If problem persists reinstall the software to correct the issue System Error 55 513 Description The IT8 reference file could not be found on the internet Corrective Action Try the following Brows to it manually www contex com and r...

Страница 49: ... 125 Description Incorrect scanner status Corrective Action Try the following Please check the paper path and reload the media System Error 100 126 Description Communication SCSI USB time out Corrective Action Try the following Reboot system Check connections Replace Interface board IMx System Error 100 128 Description The scanner has paper jam Corrective Action Try the following Clear paper path ...

Страница 50: ...been positioned System Error 100 1006 Description The scanner has paper jam Corrective Action Try the following Clear paper path Please reload the media System Error 100 1010 Description Read past end of medium Corrective Action Try the following Please reload the media System Error 100 2005 Description Time out on request Corrective Action Try the following If problem persist reboot system System...

Страница 51: ...llowing Please clean the white background Pressure rollers and the glass plate Then calibrate the scanner System Error 100 3003 Description Unable to adjust camera B up CIS 3 or 4 Corrective Action Try the following Please clean the white background Pressure rollers and the glass plate Then calibrate the scanner System Error 100 3004 Description Unable to adjust camera C up CIS 5 or 6 Corrective A...

Страница 52: ...5 or 6 Corrective Action Try the following Please clean the white background Pressure rollers and the glass plate Then calibrate the scanner System Error 100 3019 Description Error calibrating Corrective Action Try the following Please clean the white background Pressure rollers and the glass plate Then calibrate the scanner System Error 100 3051 Description The scanner s ID switch has been set to...

Страница 53: ...ply Replace the Fan Replace the Driver Board or Power Supply System Error 100 4003x 4004x Description Error on Camera Board CIS controller board Corrective Action Try the following Run SCANtest test 9 to verify the error See appendix A Check that all the cables are connected correctly Run SCANtest test 9 and check the light profiles See appendix A Run the Scanner Maintenance Replace the CIS Elemen...

Страница 54: ...les are connected correctly Run SCANtest test 9 and check the light profiles See Appendix A Run the Scanner Maintenance Replace the CIS Element If CIS element 1 2 or 3 or 5 6 is affected replace CIS Unit System Error 100 50088 Description Hardware identification error Corrective Action Try the following Check that all the cables are connected correctly to the Scanner Controller board SUI Run Scann...

Страница 55: ...lock erasure failed Corrective Action Try the following Please download new firmware Replace the Scanner Controller SUI System Error 100 50094 Description SUx Profile block write failed Corrective Action Try the following Please download new firmware Replace the Scanner Controller SUI System Error 100 50095 Description SUx Flash block erasure failed Corrective Action Try the following Please downl...

Страница 56: ...combination for this scanner Check that all the cables are connected correctly to the Cameras Boards Update the firmware Run SCANtest test 9 See Appendix A Replace the CIS Unit Run SCANtest test 9 See Appendix A Replace the Scanner Controller SUI System Error 100 50231 Description Firmware download is in progress Corrective Action Try the following System Error 100 50232 Description Firmware is in...

Страница 57: ...ed Corrective Action Try the following Reboot system System Error 100 50300 Description Unable to set scanner model Corrective Action Try the following Check Scanner Controller ID switch Reload Firmware System Error 100 50303 Description Scanner has no serial number Corrective Action Try the following Run SCANtest test 1 See Appendix A System Error 100 50505 Description SUx FRAM Error Corrective A...

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