L7680 When on a network, printer always busy, Wait will try again

you have to reinstall the driver again ,full software, hope was helping you .

Mohamed Hejazi

Replace LIU card(modem card)

Sometimes the printer locks itself up and sits in a sort of limbo.

Just pull the power cord out of the back of the printer, wait 10 seconds and plug the power back in...

The printer should come back on and go through a self test for a few minutes before you are able to print again.

Make sure there are no print jobs stuck in the queue then unplug the power adapter from the printer. The power adapter is the black box behind the printer where the power cord is attached. Wait at least 30 seconds before plugging it back in. When the printer's ready, try printing again. If the problem persists, I suggest you contact Lexmark Technical Support to further investigate the problem. Thanks.

to get to the root cause of the problem . you can try printing from the notepad and check it prints fine from the notepad . if it prints fyn then there can be some issues with the software compatibility.. which version you have for microsoft office.

First do the cut circuit: Unplug your power supply from your printer wait 10 sec. plug it back and try again.

scroll through the menu of the machine and come to the fax settings and then and chck if the line in use is line 1 or not,the DRP is set properly according to your telephone service provider,you have the phone line connected to line 1 port of the machine,you are not using a digital line for the fax machine,if you have a TAM then set the printer to picj\k up fax calls at two more rings than your telephone.

if you want a technician to do the entire troubleshooting for you.You may get in touch with one of the techbuddies,they offer free technical support for such issues.
you may get them at http://tinyurl.com/m7ghqz

You can download the manual here:
http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us&product=2512009&lang=en&

The best way to install the HP L7680 is to ignore the disk and install manually..

This guide is one I contributed to sometime back but it covers all the basics and should get you going

TRY WITH SCAN SOFTWARE INSTEAD OF SCAN BUTTON ON THE PRINTER