Created attachment 676561 [details]
output of emerge --info
After a recent upgrade in Google-Chrome, the print dialogue ignores the paper size (4"x6") and directs cups off to a long (60 second typical) rendering process that results in the document printing to the page in a huge font that takes two 4x6 pages. The print dialog box has no effect.
Sorry, but I can't really help with this. Assuming CUPS works in other programs, you would need to seek support from Google.