HP Deskjet 9800 Printer series - Manual (Page 129)

Printer light indication Explanation and recommended action
Right print cartridge light blinks, Power light on. Black or photo print cartridge is damaged or missing.
■ Reinstall the print cartridge. If the error persists, replace the
print cartridge. See
Installing or replacing the print cartridges .
■ You can still print with one print cartridge. See Printing with a
single print cartridge .
Left and right print cartridge lights blink,
Power light on. The left (tri-color) and right (black or photo) print cartridges are
both damaged or missing.
■ Reinstall the print cartridge. If the error persists, replace the
print cartridge. See
Installing or replacing the print cartridges .
Understanding the printer lights 119