Question about Samsung SCX 4521F All-In-One Laser Printer

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No faxes outgoing

My samsung scx-451 is connected to a phone outlet but does not fax. I have replaced the cables and plugged the machine into my functioning phone line but when I press the dial tone button, I hear NO dial tone.

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Re: no faxes outgoing

Turn the machine round and make sure that you haven't fitted the telephone cable into the phone slot. if you have remove the cable from the machine and plug into the other slot that is usually indicated by a letter L. Once done this try the on hook dial and hopefully there will be a dial tone. If there is not then try a different telephone cable if still the same problem then unfortunately the modem card is faulty and will need replacing.

Thanks J

Posted on Jan 12, 2008

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1- Have you set the fax machine up to auto receive in the settings and

2- Have you plugged in the Phone line to the machine and made sure that both ends are plugged in the jacks. This is not the network cable but a seperate jack that uses a phone line.

Aug 19, 2014 | Samsung SCX 4521F All-In-One Laser Printer

1 Answer

I am using Samsung SCX-4521F machine in which I am able to receive fax messages but unable to send fax using this machine. what should I do to get the problem resolved and to use the machine for both...

Please to assure that the cable from your wall connection go into the printer first and then from there with another cable to your phone. Second set up the printer as fax by using the original soft ware cd or download the programm from samsung webside. Make sure the phone and the fax are compatibile!

Apr 18, 2011 | Samsung SCX 4521F All-In-One Laser Printer

1 Answer

I want to know how i can use my copy machine to a fax so i can use it for incoming or outgoing?

Install software
Make sure all cables plugged: phone cable, USB cable to computer

Send fax from computer:
- print your document to printer HP .... FAX

Send "traditional" fax:
- put your document into scanner input
- type phone number on HP Officejet keyboard
- push button "Send"

If your HP Officejet if connected to phone line, it reseiving faxes automatically.

Hope this helps

Nov 12, 2010 | HP Officejet 4215v All-in-One Printer

1 Answer

Samsung scx-4521F just moved it, reconnected phone lines - now not able to fax

unplug from the wall and reboot fax machine.connect phone 1st before you plug it in. this sometimes fixs these type of problems.

Sep 08, 2009 | Samsung SCX 4521F All-In-One Laser Printer

1 Answer

Setup FAX...

Plug a phone cord into the LINE port of your machine. Ideally it should be a dedicated phone number, but you can share a line.

Sending a fax is just like making a phone call.

Load your original face down , dial the fax number, press send or start.

Receiving will be automatic.

Mar 15, 2009 | Samsung SCX 4521F All-In-One Laser Printer

1 Answer

Fax not going out/coming in

connect a phone with 4521 in the back side jack of phoneout,
for outgoing fax
place original in the adf or glass for fax
Press hookdial and dial your sending fax number in 4521 after number dialing pull the phone handset to ear when you leason fax tone from the dialing number press start button to send fax.

for incoming fax (in not automoated)
press hook dial and press start to receive

Mar 01, 2009 | Samsung SCX 4521F All-In-One Laser Printer

1 Answer


There are two sockets on the machine for telphone cable connection. one is for tyhe machine to be connected to exchange and other is for a phone set to mbe connected to machine. connect the line from exchange to the plug marked with "LINE". also check if your telephone company atually support fax communication. some comanies do not support sending of fax on there network. There is no software to be installed for fax. Good Luck,

Jun 01, 2008 | Samsung SCX 4521F All-In-One Laser Printer

2 Answers

How to set Ans/Fax receiving mode of SCX-4521F?

Try setting the receive mode to FAX/ANS. If you want the fax not to pickup before a phone call comes in, you should set the number of fax rings to a higher number, like "5" for instance. Set the answering machine rings less and the fax higher. The machine will usually record a message first and then detect a fax tone.

Jan 24, 2008 | Samsung SCX 4521F All-In-One Laser Printer

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