HP Officejet Pro K850dn Printer - Manual (Page 116)

Printer light indication Explanation and recommended action
The Power light, the Printhead light, and one or more of the color indicator
lights are on. One or more of the printheads is missing.
● Make sure that the protective tape on
the printhead has been removed.
● Reinstall the printheads, close all
covers, and then try to print.
The Power light is on and one or more of the color indicator lights is on. An ink cartridge is low on ink and will need
to be replaced soon.
▲ No action is required.
The Power light is on and one or more of the color indicator lights blinks. An ink cartridge is out of ink and must be
replaced before you can continue printing.
▲ Replace the ink cartridge indicated.
See
HP supplies and accessories for
information about ordering supplies.
The Power light, the Ink Cartridge light, and one or more of the color indicator
lights are on. One or more of the ink cartridges is missing.
● Install the ink cartridges and try to print.
● If the error persists, replace the ink
cartridge or cartridges indicated. See
HP supplies and accessories for
information about ordering supplies.
The Power light is on, and the Ink Cartridge light and one or more of the color
indicator lights blink. One or more of the ink cartridges is faulty
or has expired.
▲ Replace the ink cartridge indicated.
See
HP supplies and accessories for
information about ordering supplies.
The Power light and one or more of the color indicator lights are on, and the
Ink Cartridge light blinks. A non-HP ink cartridge is installed.
CAUTION Damage to the printer
that results from modifying or
refilling the ink cartridges, or from
using non-HP ink cartridges, is not
covered under the warranty.
● If you thought that this ink cartridge
was an HP ink cartridge, return it to
the place where you purchased it. Buy
and install an HP ink cartridge.
● If you choose to use a non-HP ink
cartridge, press and hold down
(Power button) and press (Resume
108 Chapter 8 Printer lights reference ENWW