Lexmark MX931
Printed/copied images present in a gritty dark band in paper feeding direction
Replace the imaging unit.
To order the imaging unit, follow these steps:
Go to Lexmark.com.
Click Supplies & Accessories. In the dropdown menu, click Find Supplies.
In the search bar, type the printer model or supploes part number. Click Find my supplies.
In the product page, scroll down and look for the Supplies tab.
Choose the product to order and Add to Cart.
Paper leading edge damaged at pick
This document shows how to fix if dark streaks appear following the paper feeding direction for MX931.