: Check the green drum surface for scratches; it is usually the first part to wear out and cause streaks.
: Use a specialized vacuum or compressed air to remove old toner. instruktsiia po razborke q2612
Unscrew the two screws holding the side cover of the drum unit. : Check the green drum surface for scratches;
Заправка картриджа HP Q2612A (12A) - ThePrint.ru instruktsiia po razborke q2612
Disassembling the toner cartridge—commonly used in printers like the HP LaserJet 1010, 1018, and 1020—is a standard procedure for refilling or replacing parts. Step-by-Step Disassembly Remove the Protective Drum Cover Place the cartridge on a flat surface.
: When reassembling, ensure the tension spring is correctly positioned, or the cartridge may only print on one side.