The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 1997
Filed:
Aug. 24, 1995
Shigeki Fukai, Tokyo, JP;
Riso Kagaku Corporation, Tokyo, JP;
Abstract
A stencil-making-type printing machine in which, even if rotary cylindrical drums having printing regions of different sizes are frequently used while being replaced with one another, the machine accurately detects when a used-stencil accommodating box is filled with used stencil, and notifies the operator. In the stencil-making-type printing machine, a CPU 200 determines the type of a rotary cylindrical drum loaded therein from output signals of dip switches 133 and 135 which are applied to it through electrical connectors 137 and 139. When a stencil discharging operation is carried out according to the type of the rotary cylindrical drum thus determined, the CPU 200 operates to add a numerical value corresponding to the length of a used stencil removed from the drum to the result of the previous addition stored in a RAM 202 to obtain the latest result of addition, and to compare the latest result of addition thus obtained with a fill-up reference data indicating that a used-stencil accommodating box is filled up with used stencil. When the latest result of addition reaches the fill-up reference data, the CPU 200 applies an instruction signal to a display drive circuit 170 to cause a display section 16 to display the fact that the used-stencil accommodating box is filled with used stencils.