Ink-backup mode

Use the ink-backup mode to operate the printer with only one print cartridge. The ink- backup mode is initiated when a print cartridge is removed from the print cartridge cradle.

Ink-backup mode output

Exiting ink-backup mode

Ink-backup mode output

Printing in ink-backup mode slows the printer and affects the quality of printouts.

Installed print cartridge

Black print cartridge

Tri-color print cartridge

Photo print cartridge

Result

Colors print as grayscale.

Colors print but black is grayed and is not a true black.

Colors print as grayscale.

Note HP does not recommend using the photo print cartridge for ink-backup mode.

Exiting ink-backup mode

Install two print cartridges in the printer to exit ink-backup mode.

For instructions about installing a print cartridge, see the print cartridge installation page.

Automatic Paper-Type Sensor

The Automatic Paper-Type Sensor automatically selects the print settings that are appropriate for the media that is being printed on, particularly when HP paper and media are being used.

For more information, see How the Automatic Paper-Type Sensor works.

How the Automatic Paper-Type Sensor works

When the Automatic Paper-Type Sensor is engaged, the printer uses a red optical sensor light to scan the first page of a document and determine the best paper-type setting. After the paper-type setting is determined, the document is printed.

For more information, see Using the Automatic Paper-Type Sensor.

Caution Do not place the printer in direct sunlight. Direct sunlight can interfere with the Automatic Paper-Type Sensor.

User's Guide

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HP 5740 - Color Inkjet manual Automatic Paper-Type Sensor, Ink-backup mode output, Exiting ink-backup mode