The contrast becomes uneven during printing

1. Check 1 

   Has the paper feed rate been calibrated properly?

   Adjust the feed amount.

    Adjusting Feed Amount

2. Check 2 

   Is the media type specified in the printer driver the same as the media type loaded in the printer?

   Load the printer with the media type specified in the printer driver.

    Loading the Upper Roll on the Printer

    Loading Sheets in the Printer

   Follow the steps below to match the media type in the printer driver to the media type loaded in the printer.

   1. To stop printing, press the Stop button.

   2. Change the type of paper in the printer driver and try printing again.