HP OfficeJet Pro K850dn User Manual

Configuring the printer (Mac OS) 
You can use the printer with a single Macintosh computer using a USB cable, or you can share the
printer among other users on a network.
Installing the software for network or direct connection
To install the software for network or direct connection
1.Connect the printer to the computer with the USB cable or to the network with a network cable.
2.Insert the Starter CD into the CD-ROM drive.
3.Click Install Driver and follow the onscreen instructions.
4.Select your...

To share among computers with the same operating system
1.Turn on printer sharing on the Macintosh computer (the host) that is connected to the printer:
Open System Preferences, click Sharing, click Services, and then select the Printer Sharing
check box.
2.To print from the other Macintosh computers (the clients) on the network, preselect the printer in
Sharing. Then, choose the neighborhood where the printer is shared and select the printer.
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Uninstalling the printer software
Uninstalling the printer software (Windows)
If you are using Windows 2000 or Windows XP, you must have administrator privileges to uninstall
the printer software.
To uninstall the printer software
1.If the computer is connected directly to the computer using a USB cable, disconnect the printer.
2.Close any applications that are running.
3.From the Windows desktop, click Start, and then click Control Panel.
4.Double-click Add/Remove Programs.
5.Select the printer software...

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5 Maintaining and troubleshooting
This section provides information on maintaining ink cartridges and printheads, calibrating color and
line feed, using the configuration page, and troubleshooting various problems.
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Replacing the ink cartridges
You can check the ink levels from the Toolbox (Windows) or the embedded Web server. For
information about using these tools, see 
Overview of printer management tools.
After removing a cartridge from its package, install it right away. Do not remove a cartridge from the
printer for long periods of time.
CAUTIONHP recognizes customers choice, but cannot guarantee the quality or reliability of
non-HP ink cartridges. Printer services or repairs required as a result of using...

2.Remove the ink cartridge that requires replacement by grasping it between your thumb and
forefinger and pulling it firmly toward you.
3.Remove the new ink cartridge from its package.
4.Insert the cartridge into its own color-coded slot. Press down firmly on the cartridge to ensure
proper contact.
5.Close the ink cartridge cover.
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Maintaining the printheads
If printed characters are incomplete, or dots or lines are missing from printouts, this might be caused
by clogged ink nozzles and you might need to clean the printheads. To find out which printheads
work with your printer, see 
HP supplies and accessories.
When the quality of printouts deteriorates, complete the following:
●Check the health of the printheads. See 
To check printhead health.
●Align the printheads. See 
To align the printheads.
●Initiate the automatic printhead...

Toolbox (Windows)
▲Click the Printer Services tab, and then click Align Printheads.
HP Printer Utility (Mac OS)
▲Open Information And Support , click Align, and then follow the onscreen instructions.
Embedded Web server
1.Open the embedded Web server.
2.Click the Settings tab.
3.Click Maintenance in the left pane.
4.In the Printhead section, click Align printheadsin the drop-down list.
Control panel
1.
Hold down 
 (Power button).
2.Press 
 (Resume button) two times.
To clean printheads automatically...

Control panel
1.
Press and hold 
 (Power button).
2.While holding down the button, do one of the following.
NOTEPerform the next level of cleaning only if results from the previous level are not
satisfactory.
a.For level 1 cleaning: Press  (Resume button) five times.
b.For level 2 cleaning: Press 
 (Resume button) six times.
c.For level 3 cleaning: Press 
 (Resume button) seven times.
3.
Release 
 (Power button). The printer begins the cleaning process.
To clean the printhead contacts manually...