Increase the number of characters that can be printed in text editor me22n

Hi SAP gurus,

im new with abap and i need your help to solve a problem.
Thanks in advance

When i run me22n and change the text item with the text editor, if i paste a text with more than 348 chars when i try to vizualize the print preview the text is cut. How can i solve this problem and configute the text size that the editor can receive?

thanks,
best regards