Lexmark X940e Owners Manual

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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...

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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...

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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...

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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...

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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...

4-274Service Manual 7510 
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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...

Repair information4-275
 7510
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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...

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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...

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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...

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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