Lexmark X940e Owners Manual
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Repair information4-269 7510 Go Back Previous Next 3Analyze the fine skew setup. 1. Enter the Diagnostics Menu. 2. Touch ENGINE ADJUST. 3. Touch RegCon adjust 4. Touch Control setup cycles 5. Touch Cycle result values Locate the following new values for the following settings: Patch-B in Patch-B out Is the value for both of the above settings a “4”?Go to step 4. Go to step 6. 4Perform the skew rough setup. 1. Enter the Diagnostics Menu. 2. Touch ENGINE ADJUST. 3. Touch RegCon adjust 4. Touch Control setup cycles 5. Touch Skew rough setup Does the above test pass?Go to step 5. Go to step 6. Step Check Yes No
4-270Service Manual 7510 Go Back Previous Next 5Perform the skew rough setup printhead adjustment. 1. Enter the Diagnostics Menu. 2. Touch ENGINE ADJUST. 3. Touch RegCon adjust 4. Touch Control setup cycles 5. Touch Cycle result values Locate the following new values for the following settings: Y- Skew adjustment M- Skew adjustment C- Skew adjustment K- Skew adjustment Turn the appropriate printhead adjustment screws, located behind the waste toner cartridge, the number of clicks (rotation until a snap sound is heard and felt) based on the above settings. +values require turning the screw Clockwise - values require turning the screw Counter Clockwise. EG: Y-Skew adjustment 10. Turn the screw CW 10 clicks. EG: Y-Skew adjustment -10. Turn the screw CCW 10 clicks. Have the appropriate printhead adjustment screw been adjusted?Re-perform step 1. If the test fails then replace the printhead. See “Printhead assembly removal” on page 4-104. Once the printhead is replaced then re- perform the entire RegCon procedure. See “” on page 4-264.Go to step 6. 6Check the image density sensor assembly connection. Is the above component properly connected?Go to step 7. Replace the connection. Step Check Yes No K C M Y Printhead adjusting screw
Repair information4-271 7510 Go Back Previous Next 7Check the image density sensor assembly for toner contamination. Is the above component dirty or contaminated?Remove and clean the image density sensor assembly. See “Image density sensor assembly removal” on page 4-55.Go to step 8. 8Re-Perform the Skew fine setup. 1. Enter the Diagnostics Menu. 2. Touch ENGINE ADJUST. 3. Touch RegCon adjust 4. Touch Control setup cycles 5. Touch Skew fine setup Does the above test pass?Perform the In/Out setup. See “In/out setup” on page 4-272.Replace the image density sensor assembly. See “Image density sensor assembly removal” on page 4-55. 9Re-Perform the Skew fine setup. 1. Enter the Diagnostics Menu. 2. Touch ENGINE ADJUST. 3. Touch RegCon adjust 4. Touch Control setup cycles 5. Touch Skew fine setup Does the above test pass?Perform the In/Out setup. See “In/out setup” on page 4-272.Contact next level of support. Step Check Yes No
4-272Service Manual 7510 Go Back Previous Next In/out setup Step Check Yes No 1Perform the In/out setup: 1. Enter the Diagnostics Menu. 2. Touch ENGINE ADJUST. 3. Touch RegCon adjust 4. Touch Control setup cycles 5. Touch In/out setup Does the above test pass?Perform the Center setup. See “Center setup” on page 4-276.Go to step 2. 2Analyze the In/out setup. 1. Enter the Diagnostics Menu. 2. Touch ENGINE ADJUST. 3. Touch RegCon adjust 4. Touch Control setup cycles 5. Touch Cycle result values Locate the following new values for the following settings: Y- Skew adjustment M- Skew adjustment C- Skew adjustment K- Skew adjustment Is the value for all of the above settings a “0”?Go to step 3. Go to step 5. 3Perform the skew rough setup. 1. Enter the Diagnostics Menu. 2. Touch ENGINE ADJUST. 3. Touch RegCon adjust 4. Touch Control setup cycles 5. Touch Skew rough setup Does the above test pass?Go to step 4. Go to step 7.
Repair information4-273 7510 Go Back Previous Next 4Perform the skew rough setup printhead adjustment. 1. Enter the Diagnostics Menu. 2. Touch ENGINE ADJUST. 3. Touch RegCon adjust 4. Touch Control setup cycles 5. Touch Cycle result values Locate the following new values for the following settings: Y- Skew adjustment M- Skew adjustment C- Skew adjustment K- Skew adjustment Turn the appropriate printhead adjustment screws, located behind the waste toner cartridge, the number of clicks (rotation until a snap sound is heard and felt) based on the above settings. +values require turning the screw Clockwise - values require turning the screw Counter Clockwise. EG: Y-Skew adjustment 10. Turn the screw CW 10 clicks. EG: Y-Skew adjustment -10. Turn the screw CCW 10 clicks. Have the appropriate printhead adjustment screw been adjusted?Re-perform step 1. If the test fails then replace the printhead. See “Printhead assembly removal” on page 4-104. Once the printhead is replaced then re- perform the entire RegCon procedure. See “” on page 4-264.Go to step 7. Step Check Yes No K C M Y Printhead adjusting screw
4-274Service Manual 7510 Go Back Previous Next 5Perform the In/out skew setup printhead adjustment. 1. Enter the Diagnostics Menu. 2. Touch ENGINE ADJUST. 3. Touch RegCon adjust 4. Touch Control setup cycles 5. Touch Cycle result values Locate the following new values for the following settings: Y- Skew adjustment M- Skew adjustment C- Skew adjustment K- Skew adjustment Turn the appropriate printhead adjustment screws, located behind the waste toner cartridge, the number of clicks (rotation until a snap sound is heard and felt) based on the above settings. +values require turning the screw Clockwise - values require turning the screw Counter Clockwise. EG: Y-Skew adjustment 10. Turn the screw CW 10 clicks. EG: Y-Skew adjustment -10. Turn the screw CCW 10 clicks. Have the appropriate printhead adjustment screw been adjusted?Go to the Center setup. See “Center setup” on page 4-276.Adjust the printhead adjustment screw then go to Center setup. See “Center setup” on page 4-276. 6Check the image density sensor assembly connection. Is the above component properly connectedGo to step 7. Replace the connection. Step Check Yes No K C M Y Printhead adjusting screw
Repair information4-275 7510 Go Back Previous Next 7Check the image density sensor assembly for toner contamination. Is the above component dirty or contaminated?Remove and clean the image density sensor assembly. See “Image density sensor assembly removal” on page 4-55.Go to step 8. 8Re-Perform the In/out setup. 1. Enter the Diagnostics Menu. 2. Touch ENGINE ADJUST. 3. Touch RegCon adjust 4. Touch Control setup cycles 5. Touch In/out setup Does the above test pass?Perform the Center setup. See “Center setup” on page 4-276.Replace the image density sensor assembly. See “Image density sensor assembly removal” on page 4-55. 9Re-Perform the In/out setup. 1. Enter the Diagnostics Menu. 2. Touch ENGINE ADJUST. 3. Touch RegCon adjust 4. Touch Control setup cycles 5. Touch In/out setup Does the above test pass?Perform the Center setup. See “Center setup” on page 4-276.Contact next level of support. Step Check Yes No
4-276Service Manual 7510 Go Back Previous Next Center setup Step Check Yes No 1 Warning: Ensure that the image density sensor assembly is moved to the center position or the test will not function. Move the image density sensor assembly to the center position. 1. Open the Printer front door. 2. Remove the waste toner cartridge. 3. Remove the printhead cleaning tool from the printer front door. 4. Place the hook on the end of the printhead cleaning tool into the front of the image density sensor assembly as shown in the diagram. 5. Remove the screw as shown in the diagram. 6. Push the image density sensor assembly toward the center of the machine as far as it will go using the printhead cleaning tool. 7. Gently detach the printhead cleaner from the image density cleaning assembly. 8. Replace the waste toner cartridge. 9. Close the printer front door assembly. Have all of the above steps been performed?Go to step 2. Repeat step 1. Screw Projection Printhead cleaning tool Image density sensor assembly
Repair information4-277 7510 Go Back Previous Next Transfer belt lift mechanism adjustment 2Perform the center setup: 1. Enter the Diagnostics Menu. 2. Touch ENGINE ADJUST. 3. Touch RegCon adjust 4. Touch Control setup cycles 5. Touch Center setup Does the above test pass?Move the image density sensor back to its original position. The color registration (RegCon) procedure is now complete.Go to step 3. 3The image density sensor is not properly set in the center position. Ensure the image density is placed in the center position. Is the image density placed in the center position.Go to step 2. Repeat step 3. Step Check Yes No 1Access the transfer belt lift latch assembly. 1. Open the printer front door. 2. Release the transfer belt lift latch assembly. 3. Lower the transfer belt lift handle assembly. Does the transfer belt lift handle assembly lower and raise smoothly (without binding)?Go to step 7. Go to next step. Center setup Step Check Yes No
4-278Service Manual 7510 Go Back Previous Next 2Check that the right transfer belt lift assembly and the left transfer belt lift assembly plungers (A) move when the handle is raised and lowered. Are both plungers moving when the handle is raised and lowered?Go to step x. Go to next step. Step Check Yes No