My HP Color Laserjet 5M prints fine as long it's full-color text or charts.
When printing photos, mixed color or light colors (especially grey) it shows
a few blank lines (less than 1 mm thick)
This printer can print A3 and thus develops an A4 page in landscape more.
On a landscape print, the lines are vertical (horizontal on a portrait
page).
when opening printer it shows these marks in the remaining toner on the drum
as well, ...
What should I replace ? the drum or the developer ??
Thank you for any advice on this.
L.
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