Error 3 is showing it also says swith off and on

my Daedwoo DWF-806 MP machine when i swith on shows figure 49 and not figure 0, and it also making noise like Buzz in between when the machine is ON. Can anybody help me to resolve this defect
thanks

P04-513 is an ink overflow error.
the easiest way to fix it is to run the drum dry.
here is how:
1. turn the machine off by the power swith.
2. hold the left and right print position buttons and turn on the machine.
3. when the machine starts it will show you some numbers.. perss either the clear or yellow reset button to show 0000
4. now enter 81 and press start and the machine will make a master.
5. once the machine is done press the clear or yellow clear button to return to 0000
6. next make suer you have plenty of paper and enter 888 and press start.. the machine will start making copies of the test pattern. (if it jams a lot you may want to use speed 1 or go to step 4 and use code 80 instead)
once the copies start coming out light you can press the stop button and when the machine stops turn it off and back on normally.

maybe it needs to be formatted,or sometimes there is a really small slider swith thingy that locks it so it cant be used or erased.

My printer's reference is Riso EZ 201E, It's showing an error os A-06-403 and a tray feed paper is lighting number 1.

please I need the help.

Yes this is the red light error it is a hardware error and to fix this you need a guide that will show you how to fix it. Either use a top rated guide or send it in and get it fixed.

tray to format with push * + 3 + send button +power on togather for awile till show formatting on screen.let the format done and your phone restart.if do not show formatting swithing off than tray again.

tray to powering off the printer wait about 10 second then swith on 
i use to be too

this error belogs to temperture error

*replace the tharmister (white color componet it comes in fuser unit ) it will work

Usually shows when the process unit is not right at home and also doors open reseat OPC and Toner close all doors, maybe a door swith out of position
Jafdee

First clear the error.
Press usermode star and release,press no2 and 8 at the time and release and press usermode star again and release,then you are in maintenance mode.
select copier,funcktion,clear,select error press ok,swiths the machine off at the main switch and on again.
That will release the errors