: Rejoin the two halves and reinsert the metal pins. If you drilled holes, seal them with flexible black silicone. Common Troubleshooting
: Wipe the magnetic roller and doctor blade to ensure consistent print density. hp 1200 instruktsiia po zapravke
: The waste toner chamber must be emptied before refilling to prevent gray streaks or backgrounding on prints. : Rejoin the two halves and reinsert the metal pins
If print quality declines after refilling, consult technical papers like the Cartridge Repair Guide for these signs: hp 1200 instruktsiia po zapravke
Do not confuse the classic LaserJet 1200 with the series. The Neverstop models use a modern Toner Reload Kit (like the HP 103A ) that avoids disassembly. You simply insert a plunger-style kit into a reload port on the printer and rotate it 180 degrees to inject the toner.