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My fax model is UX105 Sharp I want to buy a main board and modem for repair it please help

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Re: My fax model is UX105 Sharp I want to buy a main...

It will most likely be more cost effective if you just purchase a new fax machine this is not a high end model.

You can do a web serch type in "parts for sharp fax machine UX105. good luck

Posted on Jan 13, 2008

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I am looking for a repair manual for a sharp fo-6550 fax machine

i have found a service (repair) manual for your machine here:
unfortunately it is not free, but it looks as if it would be quite good.
i didn't stop here and this one here:
is free. just click on the "start download" button at the bottom of the page, the other just above it, is for some different "unzipping" software.
hope this is helpful, if so would you please register that with fixya

Jan 21, 2015 | Sharp Fax Machines

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Our office uses a Sharp FO-4470 fax machine. this morning it is flashing an error on the display of High Voltage Error. Can anyone help with this?

It probably means that the high voltage driver board is blown. You'll have to take it to a service center for repair.

Feb 18, 2011 | Sharp FO-4400 Fax

2 Answers


install winfax program on your pc.then when you want to print with your fax,inprint menu choose winfax,and then you can print .

Jun 07, 2010 | Sharp UX B700 Plain Paper Inkjet Fax

1 Answer

Sharp ux-bd90 Please explain the meaning of message "no service"

The No service basically means there is no line signal coming into teh modem board check your cable connections and rest line by plugging a phone into teh same socket check the cable is plugged into the line socket on teh back of the fax and not the phone socket

Oct 16, 2009 | Sharp UX B700 Plain Paper Inkjet Fax

1 Answer

Fax modem does not transmit. We recently had a bad storm and it was connect to a powerline phone jack. The phone jack was fried during the storm and i think the modem was too. I think the modem needs... nedd the proper HP Modem, and unless this is a relatively high end (several hundred dollar) machine -because you have not listed the model, then you might as well use it for a really big paper weight now, and buy another one, because repair will be far more, than cost of machine -I recommend buying a good surge supressor at the same time too (and i'm not talking about a power bar)

Jul 31, 2009 | HP Fax Machines

1 Answer

Sharp Fax Machine UX-485 recipiant receives black page

If you receive clear copies. Make a test copy. If it come out all black. Yes replace your fax . you have a bad scanner . cheaper to buy a new fax.

May 21, 2009 | Sharp UX 510 Plain Paper Thermal transfer...

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How do you send a fax with a fo 760?

It asn't my fax, I as doing it for a freind. I own mainly HP products and I gotta tell you the online help from HP is very good, after tying to find out just how to fax a peice of paper from sharp I would never buy a sharp machine.Regards Paul.

Dec 14, 2008 | Sharp FO 760 Plain Paper Thermal transfer...

1 Answer


The main board is the processor in the fax machine, Sorry the ETI number is just a reference to an engeneering note and V34, it pretty much the standard modem put in a fax machine, it is adjustable at I think the speeds are 9600 baud,14,4. 28.8 and 33 k. Also it can run in a mode called G3 which I am not really sure of.
It's a pretty versitle modem used in most faxes.
I am sorry, I sent the information directly from the technical tips.
Should have specified, but when time is short, sadly as many people do I took a shortcut.
If you have any other questions here is my e-mail.
Ask away..will be glad to help.

Apr 21, 2008 | Xerox WorkCentre Pro 555 Plain Paper Laser...

2 Answers

No Dial tone

Have you had an electric storm or power failure? A power surge can cause no dial tone also. It can be the main PCB in the machine or NCU PCB(board for phone cord). Unplug the machine from the wall, put your finger on the menu key first, plug the machine while holding the menu key, the light will flash and display will say maintenance. Press number 82, if there is a DF error the main board will need to replaced. The main board is the brain of the machine and is one of the most expensive parts of the unit. It is hard to distinguish if it is the modem or the main board on this unit that is causing the unit not to have a dial tone. It may be better to take it to a service center.

Aug 15, 2007 | Brother 2440C Colour Plain Paper Inkjet...

2 Answers

Sharp UX105

I just have one thought. You may have accidentaly turned off the auto recieve function. This is normally a program function on the display panel. Make sure it is set for auto recieve. Thats all I can think of.

Mar 31, 2007 | Sharp UX B700 Plain Paper Inkjet Fax

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