Hello! My name is*****
I am sorry for the printer issue! A red light refers to a various printer problems. It could point to something simple such as jammed paper, open cover, etc; but it could also point to a hardware error, such as the fuser error.
For detailed description of the red light error, click on THIS LINK
My suggestion is to check under all covers to make sure no papers are stuck. Also, blow the dust away if you see it. Turn off the printer from the electrical outlet and then leave it unplugged for about 2 minutes. Re-plug it and turn it on. If you notice the printer (fuser) is not heating up as usual, it means it is a hardware issue and you will most likely have to have the fuser replaced. For that, you will need to contact the Samsung support.
I am following up with you to see if you require further assistance. If you do, let me know.
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