HP 3840 - Manual (Page 79)

1. Power light
What the flashing light means
The Power light can flash for several reasons:
• The printer cover is open.
• The printer is out of paper.
• There is a problem with the printer, such as a
paper jam or a problem with a
print cartridge.
If an error message appears
Read the error message explaining the problem and its solution.
11.9 Document prints slowly
Several variables can slow the printer's performance.
Multiple software applications are open
The computer does not have sufficient resources for the printer to print at its
optimum speed.
To increase printer speed, close all unnecessary software programs when printing.
Complex documents, graphics, or photographs are printing
Documents containing graphics or photographs print slower than text documents.
Best or Maximum dpi print mode is selected
The printer prints slower when Best or Maximum dpi is selected as the print quality.
To increase the printer speed, select a different print quality mode.
Printer driver is outdated
An outdated printer driver may be installed.
For information about updating the printer driver, visit the HP Web site at
www.
hp.com/support .
Printer is in ink-backup mode
The printer might print more slowly if it is in ink-backup mode .
To increase the print speed, use two print cartridges in the printer.
HP Deskjet 3840 series printer User's Guide
79