
Do you have a question about the HP 3840 and is the answer not in the manual?
Covers Hewlett-Packard company notices, copyright information, and acknowledgements of trademarks.
Defines terms used in the guide and explains the meaning of cautions, warnings, and notes.
Details the printer's physical features such as buttons, lights, paper trays, print cartridges, and ink-backup mode.
Provides instructions on unfolding and folding the printer's paper trays.
Describes the available print cartridges and their uses.
Details how to connect the printer to a computer using a USB cable.
Provides tips and software features for improving digital photo quality.
Describes the benefits and use of the six-ink photo print cartridge for high-quality photos.
Guidelines and preparation steps for printing photos without borders.
Instructions for preparing and printing emails.
Guidelines and preparation steps for printing envelopes.
Explains booklet printing, which arranges and resizes pages for folding.
Step-by-step guide for printing documents on both sides of the paper manually.
Guide on how to select the correct paper type for higher quality documents.
Explains the different print quality settings like FastDraft, Normal, Best, and Maximum dpi.
Instructions on using the Page Setup dialog box to modify document layout.
Details on using the Print dialog box to adjust various print settings.
Tasks related to managing the printer, including choosing and setting it as default.
Instructions on installing and replacing tri-color, black, and photo print cartridges.
Steps to align print cartridges for optimal print quality after installation.
Detailed instructions for manually cleaning print cartridges and the cradle.
Checks and solutions for when the printer is not printing or does not turn on.
Step-by-step guide to clear paper jams from the printer.
Solutions for poor print quality, including streaks, faded print, and blank pages.
Troubleshooting steps for various error messages, including 'out of paper' and USB port errors.
Information on paper types, print speeds, resolutions, and power requirements.
Information on HP's program for recycling used ink cartridges.
List of available HP paper types, including part numbers and sheet counts.
Loading...