Hi all have a hp3530 giving grey/black background on all copies @ prints . Have changed the black drum cartridge and seem to be ok for about 500 prints/copies then starts to come back checked & cleaned all contacts to the drum.
When you do print quality test its on all colours ,ie cyan yellow magenta with a grey background. any help welcome
When you do print quality test its on all colours ,ie cyan yellow magenta with a grey background. any help welcome
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