Color Printhead Electronic Alignment - Lexmark C78x Service Manual

Color printhead electronic alignment

After replacing a color printhead:
1.
Select Alignment from the Diagnostics Menu.
2.
Select the color of printhead you are replacing.
3.
Select Quick Test.
Test pages are printed.
4.
Adjust the Step 1 settings, based on the Test pages.
•
Follow Step 1 of the instruction on the Test pages. The goal is to change the values until the Test
page shows A is within ±1 from B.
Note: If fine adjustment lines do not line up, then use coarse alignment.
•
For Step 1 (top margin), press
submit the change. Press
•
After each adjustment, print another set of Test pages by pressing
verify the change.
•
Repeat Step 1 until A is within ±1 from B, then go to step 2.
5.
Adjust the Step 2 settings.
•
Follow Step 2 of the instructions on the Test pages. The goal is to change the value until the Test
page shows A and B are within ±1.
•
For Step 2 (top margin), press
•
Press or
•
After each adjustment, print the Quick Test pages to verify the change.
•
Repeat Step 2 until A and B are within ±1, then go to step 3.
6.
Adjust the Step 3 settings.
•
Follow Step 3 of the instructions on the Test pages. The goal is to change the value for both the left
and right margins until the Test page shows C and D within ±6.
•
After each adjustment, print another set of Test pages to verify the change.
•
Round any fractional numbers up to the nearest whole number. For example: (1+2)/2 = 1.5 rounds to
2.
•
Repeat Step 3 until C and D are within ±6. When they are, you are done.
7.
Exit Diagnostics mode.
Installation note: Be sure to replace all cable ties.
or on the operator panel to adjust the top margin. Press
or to adjust the right margin. Press
or to adjust the top margin. Press
to adjust the right margin. Press
to submit the change.
and selecting Quick Test to
to submit the change.
to submit the change.
Repair information
5061
to
4-79