pylon:
Wait for about 2 seconds before sending anything to the Arduino. The opening of the serial interface resets the Arduino and it's waiting then on the serial interface for new sketches to be uploaded. If you wait 2 seconds before sending anything the bootloader ends it's work and gives control to your sketch which then can read your text and prints it to the printer.
Thanks for the reply. Doest this mean i should throw another delay() at the start of the loop?
Btw i had a semi success by submitting the words between single quotes. (ex: 'Lorem') But the printer doesn't always respond. Sometimes it prints out the words sometimes its not.
Is it some sort of overflow issue? Printing speed is rather slow as well. It could also be an encoding issue since putting the words between single quotes partially solves the problem.