You may want to try outputting PDFs of the jobs, then printing those PDFs from Adobe Acrobat.   When I create landscape-format books, I occasionally have InDesign printed output flopped. If I run the same job from Acrobat with a generated PDF, it fixes my pagination anomalies on Xerox printers and runs cleanly every time.   Hope this helps you,   Randy ... View more

Maybe not helpful, and not direct, but — Duplex printing has always been a weak point for SOHO printers. The print management tends to be glitchy, and as the paper path/rollers wear, the flip cycle gets sloppy. If the problem is "misalignment" it may just be mechanical wear over a year ago. InDesign's booklet printing feature is not one of its strongest. The usual recommendation is to export to PDF and let Acrobat handle the job — but there are reports that doesn't always work well, either. There are just enough reports like this to make me conclude that changes to ID, OS printer support and specific printer drivers occasionally get far enough out of step that complex operations like booklet pagination/printing just don't work right. Nothing short of a set of updates to bring everything back into harmony fixes it. But, of course, making sure the print drivers are up to date and have any patches for ID/OS changes would be a first step. ... View more