HP 1050c Service Manual - Page 66

HP No.80 Ink Supplies Troubleshooting 3 Press the ↑ or ↓ key until the front panel highlights "Printhead info". Press the Enter key. Ink System options Replace printhead Replace Ink cartridge Ink cartridge info... Printhead info... 4 Press the ↑ or ↓ key until the front panel highlights the color that you want to see information on. Press the Enter key. Printhead info. Cyan printhead info... Magenta printhead info... Yellow printhead info... Black printhead info... 5 The front panel displays information on the selected printhead. Cyan printhead info HP No.80 printhead Status=OK Part Number=C4821AW Usage time=50h Ink consumed=3ml Mfg. month=5/1998 The information supplied is: n The make of the printheads (HP No.80 are recommended). n The current status of the printhead. n Re-order part number of the printhead. n The time that the printhead has been operating in the printer. n How much ink has been consumed by the printhead. Note: It is possible for a printhead to consume more than one ink cartridge. n The year and the month that the printhead was manufactured. 3-10 HP DesignJets 1050C and 1055CM Printers Service Manual