![background image](https://i.inkjetdoc.com/HP Deskjet 6840 Printer series/en/HP Deskjet 6840 Printer series_en003.png)
3 Getting started
For an overview of the printer features, see the
printer features
page.
Click the appropriate topic below for a description of a printer feature:
•
Buttons and lights
•
Print Cartridge Status lights
•
Paper trays
•
Photo/envelope feeder
•
Print cartridges
•
Ink-backup mode
•
Automatic Paper Type Sensor
•
PictBridge port
For a description of the optional accessories, see the
optional accessories
page.