I have my printer up and working. I have tried a sample with the printer hooked directly to the arduino without any of the circuitry and sketches and it will print fine. However, when I set up the circuit just like the github page and try to send content it only prints blanks. The yellow light turns on when the data is being received and the green light turns on when it is ready to print. Then I press the button and the printer acts like its printing but the page is blank. Any suggestions? I was thinking it may be a power problem but I can't seem to find a solution. Thanks in advance!