The printer Okidata ML 420 does not print characters correctly, by making the space between characters too wide or too narrow.
This behavior is present when a process report is sent directly to the printer.
This Dot Matrix printer does not format correctly text in columns, expanding the spaces between each character, causing that text on the description column is hidden behind columns on the right.
Preview each Quote or Invoice and send to print from the preview window. This process will send a full image to the printer instead of separate sections.