Recorders – Record receivers and/or driving means therefor – Web
Patent
1991-06-24
1998-10-06
Fuller, Benjamin R.
Recorders
Record receivers and/or driving means therefor
Web
83359, 226180, 271 1002, 271 1004, 27125805, 27126502, 271 1007, 355309, G03G 2100
Patent
active
058184708
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
This invention relates to a novel system and unique method for feeding a continuous stream of paper to a printing device without any need for stacking and deshingling individual sheets of paper.
BACKGROUND OF INVENTION
It is desirable to input materials such as paper to a printing operation in continuous form such as fan folded or roll form. The use of a roll, rather than sheets, allows longer intervals between reloading of the paper source. Roll fed paper, cut just prior to feeding, allows sheets to be various sizes without the need to change the size of the paper loaded in the stack. The use of a paper source roll also reduces packaging waste since stacked paper sheets must be stored in a large number of individual boxes. However, many printing devices are specifically designed to accept only stacked, pre-cut sheets of paper. The stack is fed by a deshingler that removes sheets from the stack and delivers them to the printing element. This deshingler operates slowly enough to accommodate the necessary timing of print operations. However, without the deshingler to regulate feeding, the printer cannot generally operate continuously unless some other method of regulating paper feed is provided.
Previous devices, produced by, for example, the Hunkler Company of Switzerland have dealt with the problem of providing a continuous roll source of paper to a printer, designed only for use with stacked paper sheets, by continuously cutting and adding additional sheets from the roll to this input paper stack feed unit. This method has been particularly adapted for the Xerox.TM. 87xx and 97xx series such as the 9700 Laser Printer, and for various duplicators. The problem with this method is that the printer must still deshingle and individually feed sheets of paper from the stack feed unit. The result is increased, rather than decreased overall complexity and a greater chance of system failure due to the need to now accurately cut and stack paper sheets from the roll as well as to subsequently unstack the sheets of paper to feed them to the printer.
Other prior art devices also particularly directed toward the Xerox.TM. 9700 have eliminated the need for shingling and deshingling of paper, thus allowing direct feeding, by modifying the operating software of the printer so that its timing of operation will match that of the feeding device. The problem with such an approach is that the feeding device has lessened versatility with respect to other machines while installation time and expense are increased due to the need to modify software in the printer.
SUMMARY OF THE INVENTION
It is therefore an object of this invention to provide a unique system and method for continuously feeding a printing device from a continuous roll of paper material.
It is another object of this invention to provide a system and method for feeding a printing device that requires no alteration to the operating software of the device.
It is another object of this invention to provide a system and method for feeding a printing device that allows sheets of various sizes and shapes to be accurately fed and printed upon.
It is another object of this invention to provide a system and method for feeding a printing device that requires no shingling or deshingling of the paper between the source and the printer's image conducting belt or drum.
It is another object of this invention to provide a system and method for feeding a printing device that may be attached and detached from the printing device quickly and forms part of a modular system that includes a plurality of different feeding devices.
It is yet another object of this invention to provide a system and method for feeding a printing device that is specifically applicable to the Xerox.TM. 9700 Laser Printer, but may also be adaptable to a variety of other printers.
This unique invention provides a system and method for directly feeding unstacked paper sheets into a printing device having movage image conducting element with a plurality of images for transfer to the pa
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Barlow John
Fuller Benjamin R.
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