Solving Printer Problems - HP RP7 Model 7800 Maintenance And Service Manual

Sound from headphones is not clear or muffled.
Cause
Headphones are plugged into the rear audio output
connector. The rear audio output connector is for powered
audio devices and is not designed for headphone use.
Computer appears to be locked up while recording audio.
Cause
The hard disk may be full.
Line-in jack is not functioning properly.
Cause
Jack has been reconfigured in the audio driver or application
software.
There is no sound or sound volume is too low.
Cause
The application is set to use a different audio device than
speakers.
Some applications can select which audio output device is
used.
The operating system controls may be set to use a different
audio device as the default output device than what is
expected.
Speakers muted in On-Screen Display (OSD) settings.

Solving printer problems

If you encounter printer problems, see the documentation that came with the printer and to the
common causes and solutions listed in the following table.
Table F-8 Solving printer problems
Printer will not print.
Cause
Printer is not turned on and online.
148 Appendix F Troubleshooting Without Diagnostics
Solution
Plug the headphones into the headphone connector on the
front of the computer.
Solution
Before recording, make sure there is enough free space on
the hard disk. You can also try recording the audio file in a
compressed format.
Solution
In the audio driver or application software, reconfigure the
jack or set the jack to its default value.
Solution
Make sure the correct device is being used.
Make sure the application has selected the correct audio
device.
Set the operating system to use the correct audio device.
Make sure the speakers are not muted in the OSD.
Solution
Turn the printer on and make sure it is online.