HP Deskjet 6940 - Manual (Page 19)

Exit 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 HP automatic paper-type sensor detects the paper in the printer, and then selects
optimal print settings for that media. The result is fewer mouse clicks to start printing,
and automatic optimal print quality on plain, photo, brochure and other high-quality
papers. The sensor also checks the paper width to ensure it matches the size selected
in the printer software. If the widths are different, the printer warns you so that you do
not waste a sheet of paper.
When the auto 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 and check
paper width. If the paper width is different from the printer software, the printer warns you
and gives you the opportunity to stop printing. If the width matches, the printer determines
the paper-type setting and the page is printed.
Note The Automatic Paper-Type Sensor is not available for documents that are
printed from the 250-Sheet Plain Paper Tray Accessory or the Auto Two-Sided
Print Accessory with Small Paper Tray.
For more information about using the automatic paper-type setting, see Select a paper
type .
Caution Do not place the printer in direct sunlight. Direct sunlight can interfere
with the auto paper-type sensor.
Quiet mode
Use the Quiet mode feature when you require quieter printing, such as when a baby is
sleeping nearby, or when clients are in the office. To activate Quiet mode, open the
Printer Properties dialog box, click the Paper/Quality tab, and then click Quiet
Printing. By activating Quiet mode, the speed and sound level of the print job is reduced.
To resume normal printing speed, click Quiet Printing again to clear this feature.
Quiet mode can be used in Normal, Fast Normal, and Draft print modes.
User's guide 17