Abstract: A printing apparatus and a printing method capable of preventing stacks of printed sheets from falling apart which can occur when continuously printing stacks of sheets of different sheet sizes. A printing press is controlled to suspend printing for removal of printed sheets, to change the storage destination of the printed sheets or to change printing order, based on a result of sequential or simultaneous comparisons between print sizes of a plurality of print data and a previously determined permissible limit.

Abstract: The invention relates to a method for exact pile formation in printing press deliveries, which comprises printing, or printing and coating sheets in a printing press, transporting the printed or printed and coated sheets to a sheet delivery pile, releasing the sheets above the delivery pile, compacting the delivery pile by applying mechanical or pneumatic pressure thereonto, and removing the thus compacted delivery pile, and to apparatus for carrying out the foregoing method.

Abstract: A hollow cylinder is fitted with a piston, whose hollow rod or shank protrudes downward from the cylinder to apply lifting suction to print media. The upper end of the cylinder communicates with a suction system. In the cylinder side walls, main passageways and reapportioning passageways apply suction to the underside of the piston when the piston is less than fully extended, drawing the piston down to extend the shank. When the shank is fully extended the piston blocks the reapportioning passageways--reallocating more of the available suction to other feet, in the same system, that remain unextended.

Abstract: A delivery system in a sheet-fed rotary printing press includes at least one main sheet pile, and at least one auxiliary pile for an inspection-sheet delivery; a conveying device for transporting sheets; release members for releasing the sheets from the conveying device above one of the main and auxiliary piles; a sensor device for detecting the position of the respective sheets, the sensor device having a capability of emitting electrical pulses to an electronic computer for controlling the printing press, the electronic computer being actuatable for recording measured data, for documenting the measured data with respect to pertinence thereof to respective inspection sheets, for automatically delivering inspection sheets and for setting an inspection-sheet delivery cycle.

Abstract: The stacker for stacking sets of cards comprises a container for receiving a set of boarding passes and a stacking section for stacking these boarding passes in the container in the fixed orientation. In the stacker, the container has first and second walls opposing each other, and the stacking section includes a first ejecting portion for ejecting the boarding pass into the container from the second wall side, such that front of the boarding pass faces the first wall, a second ejecting portion for ejecting the boarding passes into the container from the first wall side, such that the back of the boarding pass faces the second wall, and a feeder for supplying the passes to one of the first and second ejecting portions sequentially.

Abstract: A method and apparatus for splicing a fresh stack of continuous pin-feed forms in a high-speed printer having fed therethrough an expended stock of continuous pin-feed forms, where the printer includes an input station at a recessed area. A slidable tray for supporting the fresh stack is pulled out of the printer, and a splicing station which is hingedly coupled to an upright wall portion attached to the tray is deployed external to the printer for splicing ease. The splicing station includes a spool of splicing tape which is disposed within a locating groove of a controlled depth, the forms being registered on locating pins on either side of the groove for accurate splicing upon pressing them centered on the tape. When the splice is complete, the spliced stack is fan-folded upon the tray, the splicing station folded back against the upright wall portion, and the tray returned within the recessed area.

Abstract: A document printer in which a print drum is driven by a direct current electric motor whose voltage is controlled by a first voltage regulator circuit for supplying a first voltage to the motor during a non-printing operating condition and a voltage boost circuit for supplying a higher voltage to the motor during a printing operating condition so that the same document feed rate is maintained throughout the operation of the device.