<Case 1> The DATA indicator remains lit in green but the printer does not print.

The printer has not printed all the data received.

• If no paper is loaded---
  Insert a new sheet of paper.
• If paper is loaded---
  Remove the paper and insert it again. The printer should start printing.
• If the printer does not start printing---
  Turn the printer off, turn it on again, and then print the document again.
• The problem may occur when sending simple ASCII text data to the printer.
  If a line of text is missing a CR/LF or form feed at the end of the line, the printer may be waiting for more data.
  Try printing another page, or pressing the (Feed) button to manually form feed.

<Case 2> The computer program should be sending data to the printer, but the DATA indicator does light in green.

• Make sure that the USB cable is connected firmly and correctly.
• Try using another USB cable.