Lexmark X940e Owners Manual
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Repair information4-119 7510 Go Back Previous Next 7. Remove the MPF media out actuator (B). Sensor (MPF media out) removal 1. Remove the rear cover assembly. See “Rear cover assembly removal” on page 4-5. 2. Remove the rear left middle cover. See “Rear left middle cover removal” on page 4-6. 3. Remove the MPF feed unit assembly. See “MPF feed unit assembly removal” on page 4-8. 4. Remove the two screws securing the upper frame cover (A). 5. Remove the upper frame cover (A). 6. Release the hooks securing the sensor (MPF media out) (B) to the upper frame cover (A). 7. Remove the sensor (MPF media out) (B). MPF pick roll assembly removal 1. Remove the rear cover assembly. See “Rear cover assembly removal” on page 4-5. 2. Remove the rear left middle cover. See “Rear left middle cover removal” on page 4-6. 3. Remove the MPF feed unit assembly. See “MPF feed unit assembly removal” on page 4-8. 4. Remove the three screws securing the MPF pinch roll assembly (A) to the MPF feed unit assembly (B). 5. Remove the MPF pinch roll assembly (A). 6. Release the two hooks of the two feed shaft cores (B), and move them both outwards in the directions in the arrows. Note: When removing the MPF feed roll assembly (C), do not touch the rubber surface. Hooks A Connector B
4-120Service Manual 7510 Go Back Previous Next 7. Remove the two MPF feed roll assemblies (C) by moving them outward in the direction of the arrows and lifting upwards. Replacement note: When replacing the MPF feed roll assemblies (C), do not touch the rubber surface. Replacement note: When replacing the MPF feed roll assemblies (C), ensure that the directional arrow is properly aligned. Media feed lift motor removal 1. Remove the printer left lower door assembly. See “Printer left lower door assembly removal” on page 4-8. 2. Remove the media feed unit assembly. See “Media feed unit assembly 1 removal” on page 4-31. 3. Disconnect the harness from the media feed lift motor (A). 4. Remove the two screws securing the media feed lift motor to the media feed unit assembly (B). A B C B
Repair information4-121 7510 Go Back Previous Next 5. Remove the media feed lift motor (B). Switch (media size) removal Note: This procedure can be applied to tray 1 or tray 2 switch (media size). 1. Remove media Tray 1 and media Tray 2. 2. Remove one screw securing the switch (media size) (A) to the bracket inside the machine. 3. Remove the connector from switch (media size) (A). 4. Remove the switch (media size) (A). AB Connector Rear BC A Connector Front
4-122Service Manual 7510 Go Back Previous Next Scanner removals Scanner unit assembly removal 1. Remove the platen cushion assembly. See “Platen cushion removal” on page 4-137. 2. Remove the ADF unit assembly. See “ADF unit assembly removal” on page 4-136. 3. Remove the operator panel assembly. See “Operator panel assembly removal” on page 4-126. 4. Disconnect all connections from the scanner unit assembly (A). 5. Remove the two rear screws securing the scanner unit assembly (A) to the machine. 6. Remove the two screws securing the two brackets (B) to the machine. 7. Remove the two brackets (B). 8. Remove the scanner unit assembly (A).
Repair information4-123 7510 Go Back Previous Next Platen cushion removal 1. Open the ADF unit assembly. 2. Gently pull off the platen cushion (A) from the ADF. Note: Before reinstalling the platen cushion (A), position the ADF in its upright position, and place the platen cushion (A) on the large platen glass (B) flush with the left and top edges. Gently close the ADF to attach the platen cushion (A) to the ADF. A A Platen guide 0.5+/-0.2mm 0.5+/-0.2mm
4-124Service Manual 7510 Go Back Previous Next Large platen glass removal 1. Remove the two screws securing the large platen glass retainer (A) to the scanner unit assembly. 2. Remove the large platen glass retainer (A). 3. Gently lift the large platen glass (B) upward, and move it rightward in the direction of the arrow. 4. Remove the large platen glass (B). Warning: Do not drop the large platen glass (B), or damage will occur. Note: Avoid touching the underside of the large platen glass (B). Note: Before reinstalling the large platen glass (B), clean the underside with glass cleaner, and then install the large platen glass assembly (B). After installation, clean the top of the large platen glass (B) with glass cleaner. Scanner left cover removal 1. Remove the two screws securing the scanner left cover (A) to the scanner unit assembly. 2. Disengage the rear side of scanner left cover (A) from the scanner unit assembly, and shift the scanner left cover (A) rearward. 3. Release the two hooks securing the front side of scanner left cover (A), and remove the scanner left cover (A). A B A
Repair information4-125 7510 Go Back Previous Next Scanner right cover removal 1. Remove the two screws securing the scanner right cover (A) to the scanner unit assembly. 2. Disengage the rear side of scanner right cover (A) from the scanner unit assembly, and shift the scanner right cover (A) rearward. 3. Release the two hooks securing the front side of the scanner right cover (A), and remove the scanner right cover (A). Scanner top rear cover removal 1. Open the ADF left cover assembly. 2. Remove the two screws securing the scanner top rear cover (A) to the machine. 3. Remove the scanner top rear cover (A). A
4-126Service Manual 7510 Go Back Previous Next Operator panel assembly removal Replacement warning: In the event of replacement of any one of the following components: •RIP card assembly •Interconnect card assembly Only replace one component at a time. Replace the required component, and perform a POR before replacing a second component listed above. If this procedure is not followed, the printer will be rendered inoperable. Never replace two or more of the components listed above without a POR after installing each one, or the printer will be rendered inoperable. Warning: Never install and remove components listed above as a method of troubleshooting components. Once a component has been installed in a machine, it cannot be used in another machine. It must be returned to the manufacturer. 1. Remove the two screws securing the operator panel assembly (A) to the scanner unit assembly. 2. Remove the two screws securing the two brackets (B) to the operator panel assembly (A). 3. Remove the two brackets (B). 4. Move the operator panel assembly (A) forward. 5. Disconnect the two connectors from the operator panel assembly (A). 6. Remove the operator panel assembly (A). Warning: Do not drop the operator panel assembly (A), or damage will occur. CCD card/lens assembly removal 1. Remove the large platen glass. See “Large platen glass removal” on page 4-124. 2. Loosen the six screws securing the cover (A) to the scanner unit assembly. 3. Remove the cover (A). 4. Disconnect the two connections to the sensor (platen length APS 1) (B) and the sensor (platen length APS 2) (C). 5. Release the harnesses from the clamps. 6. Disconnect the CCD ribbon cable assembly (D) from the CCD card/lens assembly (E). Warning: Do not remove or disturb any red painted screws, or optical misalignment will occur. 7. Remove the four screws securing the CCD card/lens assembly (E) to the scanner unit assembly. Connectors A B
Repair information4-127 7510 Go Back Previous Next 8. Remove the CCD card/lens assembly (E). Note: Ensure that the white connector is plugged into the sensor (platen length APS 1) (B). Blue connector B A C White connector E D Connector
4-128Service Manual 7510 Go Back Previous Next Scanner drive motor assembly removal 1. Remove the platen cushion assembly. See “Platen cushion removal” on page 4-137. 2. Remove the ADF unit assembly. See “ADF unit assembly removal” on page 4-136. 3. Remove the ADF front cover assembly. See “ADF front cover assembly removal” on page 4-138. 4. Remove the ADF rear cover. See “ADF rear cover removal” on page 4-138. 5. Remove the ADF left cover assembly. See “ADF left cover assembly removal” on page 4-139. 6. Remove the document tray assembly. See “Document tray assembly removal” on page 4-144. 7. Remove the scanner left cover. See “Scanner left cover removal” on page 4-124. 8. Remove the scanner right cover. See “Scanner right cover removal” on page 4-125. 9. Remove the scanner top rear cover. See “Scanner top rear cover removal” on page 4-125. 10. Disconnect the connector from the scanner drive motor assembly (A). 11. Release the frame clamp from the machine. 12. Remove the scanner drive motor tension spring (B) from the scanner drive motor assembly (A). 13. Remove the three screws securing the scanner drive motor assembly (A) to the scanner unit assembly. 14. Remove the scanner drive motor assembly (A). Note: To correctly set the scanner drive belt (C) tension, install the scanner drive motor assembly (A) and the scanner drive motor tension spring (B) before completely tightening the three screws. ACB Connector