Lexmark X940e Owners Manual
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Repair information4-129 7510 Go Back Previous Next Exposure lamp removal 1. Remove the large platen glass. See “Large platen glass removal” on page 4-124. 2. Gently move the scanner carriage (A) to the large opening of the frame to provide access to the front side of the exposure lamp (B). 3. Release the hook, and disconnect the connector from the exposure lamp (B). 4. Remove the screw securing the exposure lamp to the scanner carriage (A). 5. Pull out the harness of the exposure lamp (B) from the square opening in the scanner carriage. 6. Remove the exposure lamp (B). Warning: Do not touch the glass surface of the exposure lamp, or failure will occur (B). Note: Before reinstalling the exposure lamp (B), ensure that the indexing pin on the end of the exposure lamp (B) is inserted into the hole on the scanner carriage (A). Note: Ensure that the exposure lamp (B) is properly reconnected. Exposure lamp PS card assembly removal 1. Remove the large platen glass. See “Large platen glass removal” on page 4-124. 2. Remove the screw securing the exposure lamp PS card assembly (A) to the scanner carriage (B). 3. Move the exposure lamp PS card assembly rearward, then release the two hooks securing it to the scanner carriage (B). 4. Remove the exposure lamp PS card assembly (A). 5. Disconnect the exposure lamp (C) from the exposure lamp PS card assembly (A). 6. Disconnect the exposure lamp PS ribbon cable (D) from the exposure lamp PS card assembly (A). 7. Remove the two screws securing the exposure lamp PS card assembly to the insulator bracket (E). B A Connector
4-130Service Manual 7510 Go Back Previous Next 8. Remove the insulator bracket (E). Note: Before reinstalling the exposure lamp PS card assembly (A), ensure that all connections are properly connected. Note: Ensure that all harnesses and cables move freely without binding. Note: Ensure that the exposure lamp PS card assembly is securely mounted to the scanner carriage (B). Scanner controller card assembly removal 1. Remove the scanner top rear cover. See “Scanner top rear cover removal” on page 4-125. 2. Remove the large platen glass. See “Large platen glass removal” on page 4-124. 3. Gently move the scanner carriage assembly completely to the left to provide access to the screws. 4. Remove the three screws securing the cover (A) to the scanner unit assembly. 5. Move the cover (A) forward then upward in the direction of the arrow. 6. Remove the cover (A). 7. Remove the four card mounting screws (B) securing the scanner controller card assembly (C) from the rear of the scanner unit assembly. 8. Remove the screw from the rear securing the scanner controller card assembly (C) to the assembly. 9. Disconnect the four connections from the scanner controller card assembly (C). 10. Remove the seven screws securing the scanner controller card assembly (C) to the scanner unit assembly. 11. Remove the scanner controller card assembly (C). CDE A B A
Repair information4-131 7510 Go Back Previous Next Sensor (scanner HP) removal 1. Remove the scanner top rear cover. See “Scanner top rear cover removal” on page 4-125. 2. Remove the large platen glass. See “Large platen glass removal” on page 4-124. 3. Gently move the scanner carriage (A) rightward to provide access to the sensor (scanner HP) (B). 4. Release the hooks securing the sensor (scanner HP) (B) to the scanner unit assembly. 5. Disconnect the connector from the sensor (scanner HP) (B). 6. Remove the sensor (scanner HP) (B). B Connectors Connector ConnectorC ConnectorBA
4-132Service Manual 7510 Go Back Previous Next ADF angle actuator 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 scanner left cover. See “Scanner left cover removal” on page 4-124. 4. Remove the scanner right cover. See “Scanner right cover removal” on page 4-125. 5. Remove the scanner top rear cover. See “Scanner top rear cover removal” on page 4-125. 6. Remove the large platen glass. See “Large platen glass removal” on page 4-124. 7. Remove the screw securing the ADF angle actuator assembly (A) to the scanner unit assembly. 8. Remove the ADF angle actuator assembly (A). Sensor (ADF angle) 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 scanner left cover. See “Scanner left cover removal” on page 4-124. 4. Remove the scanner right cover. See “Scanner right cover removal” on page 4-125. 5. Remove the scanner top rear cover. See “Scanner top rear cover removal” on page 4-125. 6. Remove the large platen glass. See “Large platen glass removal” on page 4-124. 7. Remove the ADF angle actuator assembly. See “ADF angle actuator assembly removal” on page 4-132. 8. Release the hooks securing the sensor (ADF angle) (A) to the scanner unit assembly. 9. Disconnect the connector from the sensor (ADF angle) (A). A
Repair information4-133 7510 Go Back Previous Next 10. Remove the sensor (ADF angle) (A). Scanner PS card 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 scanner left cover. See “Scanner left cover removal” on page 4-124. 4. Remove the scanner right cover. See “Scanner right cover removal” on page 4-125. 5. Remove the scanner top rear cover assembly. See “Scanner top rear cover removal” on page 4-125. 6. Remove the two screws securing the scanner PS card assembly (A) to the machine. 7. Disconnect all the connectors from the scanner PS card assembly (A). ConnectorA
4-134Service Manual 7510 Go Back Previous Next 8. Remove the scanner PS card assembly (A). Scanner PS cooling fan removal 1. Remove the platen cushion assembly. See “Platen cushion removal” on page 4-137. 1. Remove the ADF unit assembly. See “ADF unit assembly removal” on page 4-136. 2. Remove the scanner left cover. See “Scanner left cover removal” on page 4-124. 3. Remove the scanner right cover. See “Scanner right cover removal” on page 4-125. 4. Remove the scanner top rear cover assembly. See “Scanner top rear cover removal” on page 4-125. 5. Remove the two screws securing the scanner PS cooling fan assembly (A) to the machine. 6. Disconnect the connector from the scanner PS cooling fan assembly (A). A Connector
Repair information4-135 7510 Go Back Previous Next 7. Remove the scanner PS cooling fan assembly (A). Connector A
4-136Service Manual 7510 Go Back Previous Next ADF removals ADF unit assembly removal Warning: The ADF is very heavy; do not drop it, or damage will occur. 1. Remove the platen cushion assembly. See “Platen cushion removal” on page 4-137. 2. Open the ADF to its full upright position. 3. Remove the connection from the ADF to the rear of the scanner unit assembly. 4. Remove the two ADF mounting screws (A). 5. Move the ADF slightly rearward, and then lift upward in the direction of the arrow. 6. Remove the ADF unit assembly. AA A Connectors
Repair information4-137 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
4-138Service Manual 7510 Go Back Previous Next ADF rear cover removal 1. Open the ADF left cover assembly. 2. Lift the document tray assembly. 3. Remove the three screws securing the ADF rear cover (A). 4. Lift the ADF rear cover (A) upward. 5. Remove the ADF rear cover (A). ADF front cover assembly removal 1. Open the ADF left cover assembly. 2. Remove the screw securing the ADF front cover assembly (A). 3. Lift the ADF front cover (A) upward. 4. Remove the ADF left cover assembly (A). A Rear A Front