HP OfficeJet Pro K850 User Manual

NOTEThis information is intended to be an easy-to-read summary of the full HP warranty
statement. To read the full warranty statement, go to 
www.hp.com/support/inkjet_warranty
and select your supply.
Is your product covered under warranty?
If you believe your ink supply or printhead is defective, you may return it for a refund or replacement
provided that ALL of the following are true:
●Ink supply: It is not out of ink.
●Printhead: It has not exceeded its warranted usage:
●Black printhead: 530 ml
●Color...

See Expiration date (Y-M-D) located in the Ink Cartridge Status section of the configuration page.
See 
Printing a configuration page.
●Expiration has nothing to do with the product warranty. For information about the warranty on
your ink cartridge, see 
www.hp.com/support/inkjet_warranty.
●Expiration prevents damage from old ink. When ink cartridges expire, they stop working and
must be replaced.
How do you return a product?
There are two ways to return a product under warranty:
●Visit the retailer...

8 Printer lights reference
The printer lights indicate printer status and are useful for diagnosing printing problems. This section
contains information about the printer lights, what they indicate, and what action to take if necessary.
Control panel lights
1
Power button and light
2
Cancel button
3
Resume button and light
4
Paper Jam light
5
Door Open light
6
Out of Paper light
7
Color indicator lights
8
Printhead light
9
Ink Cartridge light
Network connector lights (HP Officejet Pro K850dn Color...

Interpreting control panel lights
This section briefly explains some of the messages that might appear on the printer lights display.
Printer light indicationExplanation and recommended action
No lights are on.The printer is off.
▲
Press 
 (Power button).
The Power light is on.The printer is ready.
▲No action is required.
The Power light blinks.The printer is turning on or off or
processing a print job, or a print job has
been cancelled.
▲No action is required.
The printer is pausing for the ink to dry....

Printer light indicationExplanation and recommended action
The Power light is on and the Resume light and Paper Jam light blink.Print media is jammed in the printer.
●
Press 
 (Resume button) to eject the
jammed media.
●Remove all media from the output tray.
Locate and clear the jam (see 
Clearing
jams). After clearing the jam, press 
(Resume button) to continue the print
job.
The Power light is on and the Resume light and Out of Paper light blink.The printer is out of paper.
▲
Load paper and then press...

Printer light indicationExplanation 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...

Printer light indicationExplanation and recommended action
button) three times. All lights except
the Power light go off. Damage that
results to the printer from using this
cartridge is not covered under the
warranty.
The Power light blinks. All control panel lights are on.One or more printer errors have occurred.
●Cancel all jobs from the printer queue.
●Turn the printer off and wait for about
10 seconds before turning on the
printer again. Try printing again.
●If the problem persists, see 
Supportand...

110 Chapter 8   Printer lights reference ENWW
 

9 Printer specifications
This section provides information on physical, system, and functional specifications for the printer.
ENWW111
 

Physical specifications
For media and media-handling specifications, see Selecting print media.
Available models and physical
dimensionsSize (width by depth by height)610 by 376.8 by 205 mm (24 by 14.8
by 8.1 inches)
▲With duplex unit: 610 by 524.8 by
205 mm (24 by 20.6 by 8.1 inches)
Weight (does not include printheads or
ink cartridges)12.3 kg (27.1 lbs)
▲With duplex unit: 14.3 kg (35.1 lbs)
112 Chapter 9   Printer specifications ENWW