I have a business home print HP LaserJet Pro MFP M426fdw and I print court documents.

I have been having issue with slow print where if I print large PDF packets 40 to 50 pages 37.7MB it will only print 1 page every 30 sec... The specs are that it Prints up to 40 pages per minute.

I have only notice that this happens when I print anything over 30 pages.

Any suggestion on what I need to do to get this to print large packets, in the specs that it said it will do?