what causes a printer to print the whole page gray overcast
Grey print may also be caused by the low air density found at high altitudes. This is incredibly rare, but some models of laser printer have exhibited problems in high altitude locations in South America. Grey Background. If the page is contaminated with toner on the blank areas of the page the paper will have a faintly grey appearance. This is normally caused by excess toner because the print density setting is too high. Most small laser printers have a print density control, either a knob or a setting on the control panel.