Developer Unit Removal - Lexmark X548 Series Service Manual

After replacing the ITU, be sure to enter the 16-digit numeric value of the new ITU:
•
1. Enter the Diagnostics Menu:
Turn off the printer.
a.
b. Press and hold 3 and 6.
Turn on the printer.
c.
Release the buttons when the progress bar appears.
d.
Navigate to PRINTER SETUP > ITU Barcode.
2.
Enter the 16-digit value.
3.
4. Touch Submit to save the changes.
CHECK SUM DOES NOT MATCH appears if the value entered is incorrect. Check and re-enter the value.
5.

Developer unit removal

The developer units are not FRUs.
1. Raise the scanner unit, and remove the toner cartridges.
Remove the imaging unit. See
2.
Warning: Do not touch the underside of the imaging unit. This could damage the developer units.
Remove the developer unit you need.
3.
"Imaging unit (IU) removal".
7525-63x
Repair information
4-47
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