Only the Cover Is Discharged During Saddle Stitching (JAM129)
In the folding process of saddle stitching, the bundle of paper is folded in the middle by pinching it between paper folding rollers on the crease from top to bottom, and while folded in the middle by the paper folding rollers, it is transported.
During the folding process, the front cover is folded and transported due to the friction between the paper folding rollers and the paper; paper other than the cover is folded and transported due to the friction between sheets of paper.
However, if the print density of an image is high, such as with a solid image, it lowers the friction coefficient between sheets of paper [A], which can result in slipping during the folding process of paper other than the cover as the transport pressure drops; in such case, only the cover is discharged and other paper is left behind in the saddle stitch process tray, resulting in a paper remaining jam error (JAM129).
This is likely to occur if:
A high density image is printed in the fold line.
15 or more sheets are bound.
In a low humidity/temperature environment
Solution:
Select "Magazine" for the booklet printing method and set the binding margin to 5mm or greater.
Setting by Operation Panel
Press [Dup./ Combine/ Series] on Copier screen.
Select [Booklet] under “Magazine”.
[Edit/Color] > [Margin Adj.], set as follows.
Front Side: Left 5mm
Back Side: Right 5mm
Also can be set with SP6-200-001 to 18: Adj Booklet Staple Position.
