If you print a coupon and the yellow dots are missing in the Expiration Date field, most likely it is caused by low ink level.
This is how a valid print should look:

This is incorrect, without the yellow dots:

1
Check your ink level. There should be sufficient level of ink to print this water mark.
2
Consider updating your printer driver software. Visit the printer manufacturer website and get the latest software update for your printer model and series.
4
If possible, use a different browser or update your browser to its latest version. You may download the latest version of the browser from the links below:
Windows:
Internet Explorer
Firefox
Chrome
Macintosh:
Safari
Firefox
Chrome