What is error 30 on sharp fax fo51

SOURCE: fax problem

Hi Fatimo25,
The screen on your fax machine displays how the machine is set to receive calls. TEL MODE means the machine will not auto-answer incomming calls and will operate as a normal telephone device, it will still however be able to send a fax in this setting.
Place your message on the original tray and pick up the handset, dial the number and when the distant machine answers press the start key or ask for their fax machine and when you hear the high pitched fax tone press start.
There is a button on the panel that will allow you to change the reception mode of your machine to the other settings.
Your machine is of a model that doesn't come into this country so I have no manuals to forward you. You can try however to access the SHARP web site www.sharp.ae
Hope this helps you
regards
Gavin

SOURCE: sharp fo 4700 display error ( polygon )

You have a bad printhead unit(laser unit) . The polygon mirror is not rotating within a specific amount of time. I recommend you to replace your fax unless your willing to spend between 200 to 500 dollars.

SOURCE: Sharp UX-117 display Wait a moment on power on and then no signal

I have not worked on a sharp ux-117 before, however most sharp fax machines are all alike when it comes to resetting this code. Turn the fax on while holding down the stop and start key don't let go until you see 1 =yes, 2=no for memory clear. press 1=yes. Some of the sharp fax machines have a small white rounded reset button. No guarantee but you have nothing to lose.

SOURCE: sharp fax in download mode

u have to install firmware to ur fax by using firmware update tool