摘要:
An automatic paper feeding arrangement for use in a copying machine and the like having a plurality of stages of paper feeding sections for feeding the paper at a selected one of the paper feeding sections. The automatic paper feeding arrangement includes a circuitry for detecting the presence of the paper at each of the paper feeding sections, and a control circuit for cancelling the designation of the paper feeding section previously effected, based on the signal from the detecting circuit when the paper becomes absent in each of the paper feeding sections, and also for designating the paper feeding section in which the paper is initially loaded, based on the signal from the detecting circuit when the paper is loaded in any of the paper feeding sections.
摘要:
A trouble detecting system is incorporated in an copying machine having an illumination lamp for projecting light beams onto an original, optical path for transmitting the reflected light beams from the original onto a photoreceptor surface and a scanning device for scanning the original. The trouble detecting system includes a first detector which is disposed along the scanning path of the lamp for detecting the scanning movement of the lamp and a second detector which is coupled with a driving motor for driving the scanning device for detecting the actuation of the driving motor.
摘要:
A computer-controlled paper feeder comprises at least first and second supply units from which respective recording materials are supplied one at a time towards a processing station. There is provided a size detector for detecting the size of the recording material contained in respective cassettes inserted in the associated first and second supply units and an emptiness detector for detecting the presence and absence of the recording material in any one of the cassettes in the first and second supply units. These detectors are so correlated with micro-computer that, when the recording material in one of the cassettes has been consumed and the size of the recording material in the other of the cassettes has been found equal to that in the one of the cassettes, the corresponding supply unit is brought into operation to feed the recording material out of the other of the cassettes towards the processing station until the recording material in the other of the cassettes is completely consumed.
摘要:
An electrophotographic copying apparatus is equipped with an indication device for the maximum area to be covered by copying, i.e. the area available for copying or copying coverage. The copying coverage indication device which includes a micro-computer is arranged to indicate the area to be covered by copying according to the sizes of copy paper sheets and copying magnifications for preventing use of copy paper sheets of unnecessarily large or small sizes, and is capable of warning an operator of the necessity for exchanging sizes of copy paper sheets.
摘要:
A copying apparatus which is equipped with a scanning system control device including means for judging sizes of copy paper sheets employed, means for detecting copying magnifications, and means for controlling movement of the scanning system of the copying apparatus so as to correspond to the area available for copying or copying coverage to be determined by the judged size and detected copying magnification. The movement of the scanning system is not controlled by the size of the original or copy paper sheet itself, but is regulated to correspond to the area available for the copying on an original platform to be determined by the copy paper size and copying magnification.
摘要:
Sequential control circuit for sequentially controlling the operation of mechanical equipment, for example, an electrophotographic copying apparatus including various devices having respective smaller devices is characterized in that a first train of clock pulses having a fixed predetermined frequency is converted into a third train of clock pulses whose respective pulses are in synchronism with respective pulses of a second train of clock pulses sequentially generated in accordance with respective driven rates of the sequentially driven devices, so that a respective digital timer circuit which is preset with operational time data of its respective device is capable of successively performing the decrement of the predetermined time in response to the respective pulses of the respective third train of clock pulses.
摘要:
This invention is directed to a paper jam detecting device for use in an electrophotographic copying machine which comprises a plurality of paper detector located along the passage of the copy paper transported during copying process, first timer adapted to count the first period of time so as to detect the leading edge of the copy paper by any one of the paper detector and second timer adapted to count the second period of time so as to detect the trailing edge of the copy paper by said one of the paper detector, whereby paper jam can be detected in case where no paper is detected on the first period of time or in case where a paper is detected on the second period of time.
摘要:
Disclosed herein is a device for setting a copying magnification in an electrophotographic copying apparatus. The device comprises means for manually inputting a numerical value, a plurality of memory means, selection key means for selecting one from the plurality of memory means and control means for memorizing a numerical value input by the numerical value input means in said one of memory means selected by the selection key means, so that the copying apparatus operates to set a copying magnification by numerical value memorized in said one of memory means.
摘要:
Disclosed herein is a device for setting a copying magnification in an electrophotographic copying apparatus. The device comprises means for manually inputting a numerical value, a plurality of memory means, selection key means for selecting one from the plurality of memory means and control means for memorizing a numerical value input by the numerical value input means in said one of memory means selected by the selection key means, so that the copying apparatus operates to set a copying magnification by a numerical value memorized in said one of memory means.
摘要:
An improved copying magnification capacity is provided to an electrophotographic copying apparatus. The copier has a numeric data display that can disclose numeric data that can be manually input into the machine. The numeric data can be stored in a memory as a predetermined copying magnification value. The copier has the capability of establishing a copying magnification value that can be easily adjusted when the magnification of an actually obtained copy deviates from an established desired value. The stored numeric value can be used in the control for setting a magnification value.