HP Deskjet 6840 Color Inkjet Printer - Manual (Page 155)

• Photo paper and envelopes can be printed on one side by using the small paper
tray.
• Print two-sided documents automatically .
If the Auto Two-Sided Print Accessory with Small Paper Tray is not included with
your printer, it can be purchased separately from an authorized HP dealer.
The accessory only supports certain paper types. For a list of supported paper types,
see the Auto Two-Sided Print Accessory with Small Paper Tray specifications .
Note: The Auto Two-Sided Print Accessory with Small Paper Tray is not available
in all countries/regions.
Learn how to install and enable the accessory.
Learn how to configure the printer to use the accessory when printing from a digital
camera .
Follow these tips to solve printing problems when using the accessory.
12.3.1 Installing the Auto Two-Sided Print Accessory with Small Paper
Tray
Use these steps to install the Auto Two-Sided Print Accessory with Small Paper
Tray:
1. Push the two latch handles on the printer rear access door toward each other,
and then remove the door.
Do not discard the rear access door. In order to print, the accessory or the rear
access door must be attached to the printer.
2. Insert the accessory into the back of the printer until both sides snap into place.
HP Deskjet 6800 series printer User's Guide
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