JPS5841736U - Paper end processing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the device of the present invention, and FIG. 2 is a block diagram showing a control circuit. In the figure, 1 is a printing device, 2 is a paper post-processing device, 3 is paper, 4 is a tractor, 5 to 9 are rollers, 14 is a tractor,
15 and 17-19 are rollers, 20 is a tractor, 21
22 and 23 are sensors, 31 and 32 are AND gates, 33 is a flip-flop, and 34 is a counting controller.

Claims (1)

[Claims for Utility Model Registration] A printing device, a post-processing device that performs processing such as cutting and stacking printing paper discharged from the printing device, and a post-processing device provided between the printing device and the post-processing device, of. A buffer that absorbs paper accumulation caused by a difference in processing speed; a paper feeding means provided on the inlet side of the buffer that feeds the paper into the buffer by driving the buffer, and holds the end of the paper by stopping the buffer; Presence/absence detection means provided on the printing device side for detecting the presence or absence of paper and generating an output when there is no paper, and detecting the amount of paper in the buffer;
a paper amount detection means that generates an output when the amount is less than a predetermined amount, and drives the paper feeding means to move the end of the paper into the buffer only when the presence/absence detection means and the paper amount detection means both generate an output. A paper end processing device characterized by feeding.