Constant ghosting in colour

[dylan_cms]

I've checked the drum (no visible marks, waste etc.), emptied the waste drum but still see the hosting per the attached image (see top centre before table 1 and bottom right next to table 3).

I've tried different paper and different paper settings to no avail.

Any ideas to debug this?

[Valsimot]

Looks like you will need to replace the drum. Is the printer used every day or it is unused for a longer period?

[dylan_cms]

That's pretty disappointing given it's only 18 months old, and I print, on average, 20-30 pages per week,

Does 18 months sound average for this - if so it seems I should research better for sure,.