This means you have problems with either your Toner Ctg, Developer Unit or worst Drum Cartridge I would start with Toner do you remember which toner ctg you installed or recently replaced ?
how much would it be to check the light path on an Infocus Lp640 projector? It lights up but there...
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how much would it be to check the light path on an Infocus Lp640 projector? It lights up but there is minor discoloration on half of the projected image.