Lexmark 4036-304 - Manuals

vi Service Manual 4036-304 Sicherheitshinweise • Dieses Produkt und die zugehörigen Komponenten wurden entworfen und getestet, um beim Einsatz die weltweit gültigen Sicherheitsanforderungen zu erfüllen. Die sicherheitsrelevanten Funktionen der Bauteile und Optionen sind nicht immer offensichtlich. S...

Safety Information vii 4036-304 Informació de Seguretat • Aquest producte està dissenyat, comprovat i aprovat per tal d'acomplir les estrictes normes de seguretat globals amb la utililització de components específics de Lexmark. Les característiques de seguretat d'algunes peces pot ser que no sempre...

Overview 1-1 4036-304 1. Overview This manual is for maintenance engineers. It describes the maintenance areas, installation, disassembly, and the main troubleshooting guides. Take your time to read this manual thoroughly to obtain comprehensive knowledge about the scanner before servicing the unit....

1-2 Service Manual 4036-304 Digital Copier and Full-function Fax Machine When the scanner is connected to a Lexmark printer, it performs convenient digital copying. When connected to telephone line, the scanner performs a full fax function - to send and to receive faxes. Network Scanning The scanner...

Overview 1-3 4036-304 Product Specifications The scanner is designed to meet the following product specifications: Scanner Scanner Type Flatbed Scanner with ADF built in Optical Resolution Flatbed: 300x600 dpiADF: 300x300 dpi Enhanced Resolution 9600x9600 dpi Scan Speed 10 ppm at 300 dpi color for s...

1-4 Service Manual 4036-304 Environment: -Operating -Storage 10°C to 35°C (50°F to 95°F)20% to 80% RH (Relative Humidity)-40°C to 65°C (-40°F to 149°F)10% to 90% RH (Relative Humidity) Random Vibration: -Unpacked non-op -Package -Bump -Drop 10-200Hz, 0.005 p.s.d. (G^2/Hz)5-200Hz, 0.015 p.s.d. -6 dB/...

Overview 1-5 4036-304 Theory of Operation System Description The Lexmark X4500 is a duplexing scanner option which can synchronously scan both the top and bottom sides of a document in color. The major system components include a main scanner control board, an automatic document feeder, flatbed, two...

1-6 Service Manual 4036-304 Auto Document Feeder Operation When using the Auto Document Feeder (ADF) mechanism, a page is fed into the ADF by a pick roller and through the ADF by a feed roller. A separation pad located opposite to the pick roller is used to properly feed the pages one at a time when...

Overview 1-7 4036-304 Scanner Mechanism Overview and Locations This section contains an overview of the major components of the scanner hardware. External View

Overview 1-9 4036-304 Abbreviations ADF Auto Document Feeder CCD Charge-Couple Device CCFL Cold Cathode Fluorescent Lamp CDB Command Descriptor Blocks DMM Digital Multimeter LED Light Emitting Diode MFD Multi Function Device PCBA Printed Circuit Board Assembly UI User Interface

Problem Solving 2-1 4036-304 2. Problem Solving This chapter describes two methods to solve the operational problems. The first relies on the scanner internal diagnostics to report error codes. The second uses troubleshooting techniques to isolate the problem. In many cases, the internal error codes...

Problem Solving 2-5 4036-304 Scanner Errors Scanner Errors are errors detected within the scanner mechanism and auto document feeder assembly. These errors appear on the user interface touch screen along with a number of flashes of the flatbed CCD lamp (the flash sequence is repeated 10 times). See ...

Problem Solving 2-7 4036-304 Troubleshooting The tables in this section provide detailed troubleshooting information. The Power does not come on * Check explains how to check the failed item.To do a visual check observe the part or observe the offline test display on the front panel. To do a tester ...

2-8 Service Manual 4036-304 Scan module does not move to lock position Cause Relevant Unit Check Action Home position sensor board failure CCD board Tester check Replace the CCD PCBA. Motor-main control PCBA connection failure None Visual check Connect the connector. Motor failure Carrier motor Visu...

Problem Solving 2-9 4036-304 Scan module does not move to the home position Cause Relevant Unit Check Action Home position sensor board-main control PCBA connection failure None Visual check Connect the connector. Home position sensor board failure Sensor in the flatbed CCD assembly Tester check Rep...

2-12 Service Manual 4036-304 Reading position deviation Cause Relevant Unit Check Action Motor-main scanner PCBA connection failure None Visual check Connect the connector. Motor failure Carrier motor Visual check Replace the carrier motor. Home position sensor board-main scanner PCBA cable failure ...

Problem Solving 2-13 4036-304 Image unclear Cause Relevant Unit Check Action Lamp too dark Lamp Visual check Replace CCD optical unit. Dirt on calibration reference plate Calibration reference plate Visual check Clean the flatbed glass with isopropyl alcohol. Dirt on the mirrors Mirrors Visual check...

2-14 Service Manual 4036-304 Strange Sound Generated (flatbed) Frequent paper jam, double feed or skew Cause Relevant Unit Check Action Motor unit failure Motor unit Visual check Replace the carrier motor. Main scanner card failure Main scanner card Replace the main scanner card. Replace the main sc...

Maintenance 3-1 4036-304 3. Maintenance This chapter describes cleaning methods maintenance parts replacement, and adjustment and lubrication necessary for normal scanner operation. Perform preventative maintenance in the shorter term either every six months or every 60,000 sheets scanning. Cleaning...

3-2 Service Manual 4036-304 Maintenance Tools The following table describes the tools necessary for the maintenance of this scanner. Removals Parts Replacement 1. Clean the disassembly and assembly location. 2. Turn off the power switch and remove the AC plug from the outlet before disassembly and a...

Maintenance 3-3 4036-304 CCD Board Screws Screws for the CCD board in the optical unit are as shown. These screws have a red coating indicating they should never be loosened. Flatbed CCD Optical Unit ADF CCD Optical Unit

3-4 Service Manual 4036-304 ADF Snap-in Pad Module Removal and Mounting After scanning approximately 100,000 pages through the ADF, the ADF pad module may be worn and you may experience problems with document feeding. In this case, replace the ADF pad module. To remove the ADF snap-in pad module: 1....

Maintenance 3-5 4036-304 Document Cover Removal Lift the document cover to remove the studs from the hinge holes. The studs are loosely attached to the hinge holes to accommodate the depth of the original. ADF Cover Removal Remove the two ADF cover screws and lift the ADF cover.

3-6 Service Manual 4036-304 ADF Optical CCD Unit Removal Warning: Do not loosen any screws with red coating. 1. Remove the ADF cover. Go to “ADF Cover Removal” on page 3-5 . Remove the two screws from the ADF optical CCD unit as shown, and pull out the unit. 2. Use a flat screwdriver to raise the la...

Maintenance 3-9 4036-304 Note: The upper and lower units of the ADF unit can now be separated. User Interface Removal 1. Remove the document output tray and document cover. 2. Place the scanner on its back. 3. Remove the three screws to loosen the user interface from the scanner.

3-12 Service Manual 4036-304 Upper Housing Removal 1. Remove the ADF unit. Go to “ADF Unit (Upper and Lower Unit) Removal” on page 3-7 . 2. Remove the user interface. Go to “User Interface Removal” on page 3-9 . 3. Remove the four rubber pads with a flat screwdriver. 4. Remove the screws beneath the...

3-14 Service Manual 4036-304 Flatbed CCD Optical Unit Removal Warning: Do not loosen any screws with red coating. 1. Remove the upper housing. Go to “Upper Housing Removal” on page 3-12 . 2. Press the pulley on the carriage belt pulley assembly toward the center of the unit and remove the carriage b...

3-16 Service Manual 4036-304 Carriage Motor Assembly Removal 1. Remove the upper housing unit. Go to “Upper Housing Removal” on page 3-12 . 2. Press the pulley on the carriage belt pulley assembly toward the center of the unit and remove the carriage belt from the pulley. 3. Disconnect connector fro...

Maintenance 3-21 4036-304 Main Control Board Removal 1. Remove the MFD controller cage. Go to “MFD Controller Cage Removal” on page 3-16 . 2. Remove the screws securing the main control board. 3. Disconnect the cables and remove the board.

Connector Locations 4-1 4036-304 4. Connector Locations The pin assignments shown are voltages and grounds which can be tested in the field. Use a multimeter grounded to the scanner MFD controller cage when measuring the voltage for the main scanner board. Main Scanner Board ADF Video Circuit J7: AD...

4-2 Service Manual 4036-304 MFD Controller Cage All components within the MFD controller cage are self diagnosed. Any errors are repor ted as MFD controller cage errors. Low Voltage Power Supply The following diagram and chart represents the power supply output connector. Pin No. Wire Color Assignme...

5-2 Service Manual 4036-304 Assembly 1: Upper Scanner 1 2 3 4 5 6 7 9 8 10 11 12 13

Parts Catalog 5-3 4036-304 Assembly 1: Upper Scanner Asm- Index Part Number Units Description 1 56P2717 1 Tray, Document Input 2 56P0024 1 Cover, Scanner Document 3 56P0032 1 Cover, Upper with Glass 4 56P0020 1 User Interface, Complete 5 56P0030 1 Assembly, Lower ADF 6 56P0023 1 Tray, Document Outpu...

5-4 Service Manual 4036-304 Assembly 2: Lower Scanner 1 2 3 4 6 7 8 9 10 13 14 15 16 20 24 5 11 12 17 18 19 21 22 23

Parts Catalog 5-5 4036-304 Assembly 2: Lower Scanner Asm-Index Part Number Units Description 1 56P0036 1 Cable, ADF CCD (6PIN + 14PIN) 2 56P0035 1 Cable, ADF Motor/Sensor (15PIN) 3 56P0033 1 Pulley Assembly, Carriage Belt 4 56P0031 1 Assembly, Flatbed CCD Optical Unit 5 56P1466 1 Lamp, Flatbed CCD 6...

I-1 4036-304 Index A Abbreviations 1-9 C Cleaning ADF Unit 3-1 Cover and Glass 3-1 Touch Screen 3-1 Connector Locations 4-1 E Error Codes MFD Controller 2-1 Scanner 2-5 M Maintenance 3-1 Maintenance Tools 3-2 O Overview 1-1 P Parts Catalog 5-1 Parts Replacement 3-2 Problem Solving 2-1 Product Descri...