The present invention is to provide a sheet conveying device capable of reducing noise. The sheet conveying device includes an endless belt that gives a conveying force to a sheet and a rotating member engaged with an outer peripheral portion of the endless belt. The endless belt has, on its outer peripheral portion, a plurality of convex portions arranged in a peripheral direction thereof, the convex portions each extending in a width direction thereof. The rotating member has a contact portion that contacts the outer peripheral portion of the endless belt and deforms a plurality of points of each of the convex portions in the width direction.

The present invention is to provide a sheet conveying device capable of reducing noise. The sheet conveying device includes an endless belt that gives a conveying force to a sheet and a rotating member engaged with an outer peripheral portion of the endless belt. The endless belt has, on its outer peripheral portion, a plurality of convex portions arranged in a peripheral direction thereof, the convex portions each extending in a width direction thereof. The rotating member has a contact portion that contacts the outer peripheral portion of the endless belt and deforms a plurality of points of each of the convex portions in the width direction.

A method for checking intermediate, part or end products during the production process without using marks is disclosed. The print image of the intermediate, part or end product produced on a digital printing press is scanned at least after a predetermined production step in order to subsequently compare the scanned print image with stored product data. Based on the comparison, the check of the previous processing steps and/or the calculation of the subsequent control actions for the order allocated to the intermediate, part or end product and the control actions by the production device are carried out.

A method for checking intermediate, part or end products during the production process without using marks is disclosed. The print image of the intermediate, part or end product produced on a digital printing press is scanned at least after a predetermined production step in order to subsequently compare the scanned print image with stored product data. Based on the comparison, the check of the previous processing steps and/or the calculation of the subsequent control actions for the order allocated to the intermediate, part or end product and the control actions by the production device are carried out.

A booklet making method includes: cutting a web of paper on one side and on another side into first and second continuous sheets, alternately bonding the first and second continuous sheets widthwise with a setting paste and a throwaway paste to form a double set continuous sheet of paper, and cutting the double set continuous sheet of paper into split double sheets of a selected longitudinal length. A plurality of split double sheets is integrally bound with an integrating paste to form a booklet-like product. Portions of the booklet-like product which are pasted and bonded with the throwaway paste are cut off to provide a plurality of booklets. Thus, by the booklet making method, booklets having an odd number of leaves or pages are formed without waste of paper and with reduced paper jams.

A booklet making method includes: cutting a web of paper on one side and on another side into first and second continuous sheets, alternately bonding the first and second continuous sheets widthwise with a setting paste and a throwaway paste to form a double set continuous sheet of paper, and cutting the double set continuous sheet of paper into split double sheets of a selected longitudinal length. A plurality of split double sheets is integrally bound with an integrating paste to form a booklet-like product. Portions of the booklet-like product which are pasted and bonded with the throwaway paste are cut off to provide a plurality of booklets. Thus, by the booklet making method, booklets having an odd number of leaves or pages are formed without waste of paper and with reduced paper jams.