Dirty paper edge check

Print Quality Defect: Dirty Paper Edge

A thin line of toner seen down the very left side edge of the page (simplex printing). Predominately yellow but can be any colors.

This issue may require a stack of pages to see if the line is on the very edge of each sheet. See sample image below:

This issue happens in the following circumstances:

Mid-late life on High Yield Imaging Unit (Earliest seen in ~25K pages, most in 100K pages or later)

Letter width media (A4 and narrower media do not exhibit issue)

Printing from input option trays only

Simplex side only

Skewed pages can be worse

Try printing letter width media from tray 1 if possible.

Ensure that the tray side guides are tight against media.

Should the issue persist, replace the specific color Developer Unit.

LEGACY ID: SO8630