We have a booklet laid out and ready in indesign. When we go to the print booklet function, it looks correct. We are printing to a Savin c4503 printer and to the document server on that printer. When we go to the printer to print the job, it's changing the paper from 8.5x11 to 11x17. Our booklet is a 5.5 x 8.5 page so it should be printing on 8.5x11. Does anyone know what might be causing it to bump up to the larger size?
Do you have bleeds and crop marks applied?
Have you tried exporting to PDF and printing from there using Print Booklet in Acrobat? https://helpx.adobe.com/acrobat/kb/print-booklets-acrobat-reader.html
Are you also setting the printer to do bookletting? It should be either ID or the printer, not both.