This printer spits out too many pages according to my customer and she's right. It appears that some pages do not fully exit and for brief instant you can see the red warning light flicker and almost read a jam message before it disappears and the printer ejects that page and then reprints it like it assumes it did jam. The only error codes were for a drum heating up too quickly and some other code that's not even in the book. It does have a n7t jam code though. I replaced the pick assembly and retard roller and tested again but no change. Paper type and quality have not changed according to the customer. A smaller amount in the tray did not change anything either. Help on this one would be appreciated. Thanks.