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:
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:
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:
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:
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:
The present invention provides a preset counter apparatus for a copying machine wherein input keys are capable of independently controlling the numerical value of the number of copies to be made and displayed. Thus, an operator can activate one key to change the digit positions of units and another key to change the digit position of tens. The control of the number of copies to be made is specifically designed to facilitate operator use and to avoid operator errors. Simultaneous activation of more than one key prevents any change in any values in both the units and tens positions.
摘要:
An image duplicating apparatus in which data representative of operational conditions in accordance with which a document sheet is to be duplicated are entered by the user and the natures of document sheets to be duplicated are detected. The data are stored in memory areas of a memory which are respectively assigned to the natures of document sheets. Any one of the memory areas is selected from the memory for the data representative of the operational condition for one of the natures of document sheets written into a selected one of the memory areas and is then read from the storage device for the individual detected natures of document sheets. The copying operation is performed in accordance with the operational conditions represented by the data read by the data read arrangement.
摘要:
A preset counter apparatus is provided for copying machines having a plurality of key inputs for increasing or decreasing the number of copies to be made. The timer is used to measure a predetermined increment of time for changing the numerical value upon the continuation of a key input. The rate of change of the number of copies to be reproduced can be progressively increased, at least across a predetermined number of increments of values, by the continued activation key member.