Disassembly of the HP C4280 printer Remove two screws near the bottom edge of the front subchassis and lift it away. You now have access to the mechanism. If power is connected, the mechanism ...Hp Photosmart C4280 Service Codes - 1: The HP Color LaserJet 3600n and 3600dn printers are not HP PCL5 compatible. However, in at least one case, a *LAN 3812 PJL device description was able to print to an HP Color LaserJet 3600n by setting the Workstation customizing object (WSCST) parameter to QWPDEFAULT in library QSYS..
Replacing a Cartridge - HP Photosmart C4280 All-in-One Printer - HP ... Replacing a Cartridge - HP Photosmart C4280 All-in-One Printer - HP Support Video Gallery