Abstract: 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.

Abstract: An image forming apparatus that is capable of providing various copy ratios includes an original table that can receive an original document from an image carrier. The original is then illuminated, and a focusing lens system is capable of focusing reflected light from the original document onto a photosensitive member. The focusing lens system is movable. A drive assembly can cause relative movement of the original and a light system for illuminating the original, while a second drive member can vary the distance from the original to the focusing lens system whereby the image stays within the fixed focal length of the optical system while accommodating the speed necessary for a specified copy ratio.

Abstract: Disclosed herein is a device for setting a copying magnification in an electrophotographic copying apapratus. 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.

Abstract: 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.

Abstract: A copying apparatus including a numeric value input device, a numeric memory, a numeric display unit, an arithmetic device, an operating device for actuating the arithmetic device, a control device for causing the numeric memory to store an arithmetic result obtained by an arithmetic operation of the arithmetic device, and a magnification control device for controlling operations of the copying apparatus on the basis of the arithmetic result.

Abstract: A data transmission system includes a host CPU having an output terminal for repeatedly producing a predetermined number of data blocks in a predetermined sequence in a repeated manner. Each data block is defined by a sequence code for identifying each data block and specific data followed by the sequence code. A plurality of slave CPUs are provided. The host CPU is connected to each slave CPU through a bus structure for the mutual data transmission. Each slave CPU receives all the data blocks and selectively extracts only the necessary data for use in each slave CPU and produces data from its output terminal at a given period within one cycle of the predetermined sequence. The given period for one slave CPU differs from that of another slave CPU, thereby transmitting data to the host CPU without any interferences.

Abstract: 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.

Abstract: A programmable copying apparatus is provided which permits an operator to be informed of the exact time that the copying operation input by him into the machine will be completed, even with multiple copying operations.

Abstract: An image editing system which comprises a memory device capable of storing editing data in memory, copying device to perform edited-image copying based on data stored in the memory device which is attached to the copying device, and an input device, which is separate from the copying device, for entering edited data in the memory device.

Abstract: An integral document processing apparatus comprising an electrophotographic copying system and a facsimile transmission system. A document fed from a common document storing unit is guided selectively to a first document read unit included in the electrophotographic copying system or to a second document read unit included in the facsimile transmission system by a document feed passage changeover mechanism which is operated selectively by an operator. A document delivered to the first document read unit is copied by the electrophotographic copying system. A document delivered to the second document read unit is converted into a corresponding electric image signal, and then the electric image signal is applied to a communications line.

Abstract: A copying machine wherein a magnification ratio can be changed substantially continuously within a predetermined range, comprising means for setting a longitudinal magnification ratio of a copied image against an original and a lateral magnification ratio of a copied image against the original independently, image shifting means for shifting an image projected on a photosensitive drum in a direction away from a paper separation belt, first calculating means for calculating a lateral magnification factor, second calculating means for calculating a longitudinal magnification factor, and means for modifying the longitudinal and lateral copy magnification ratios respectively using the selected magnification ratio, the longitudinal and lateral magnification factors, whereby an image can be formed on the copy paper, preventing image drop out.

Abstract: 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.

Abstract: The copying rate of an electrophotographic copying machine of constant paper advance speed including a toner image fixing unit which is selectively preset to predetermined values in increment inverse relationship to the thickness of the copy sheets employed, so that copy sheets of greater thickness are fed to the fixing unit for lesser feed rate than the thinner standard sheets, whereby the copy sheets are adequately heated at the different thicknesses. Following the termination of a copy sequence of thicker sheets at reduced feed rate, the copy machine automatically reverts to its rate setting for standard thickness sheets. In copying with standard thickness sheets, the period of the first copying cycle is greater than that for subsequent sheets and the copying rate with the thicker sheets is the same as that for the first copy with standard thickness sheets. A microcomputer network with a rate selector switch programs the copying machine in the above manner.

Abstract: An operation device for use in a copying machine which comprises a visual display unit on a copy start button of the copying machine for displaying various operational states of the copying machine by different figures or patterns representing the contents of the states of the copying machine. The patterns of the display unit is controlled in response to signals fed from a control device of the copying machine.

Abstract: 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 memory means having a plurality of memory locations, selection key means for selecting one from the plurality of memory locations and control means for storing a numerical value input by the numerical value input means in said one of the memory locations selected by the selection key means, so that the copying apparatus operates to set a copying magnification by a numerical value stored in said one of the memory locations.

Abstract: A copying machine includes a drive motor for driving the copying machine, a device for generating a start signal for starting the drive motor, an auto-shut device for stopping the drive motor a predetermined period of time after the completion of a copying operation, and a mechanism for carrying out a multi-copying operation in which a plurality of copying operations are carried out sequentially.

Abstract: A copier including a detector for detecting malfunctions in the copier or nonoperative conditions of the copier; and a system for storing voice signals corresponding to the detected malfunctions and nonoperative conditions and a voice producer for producing a voice corresponding to each of the stored voice signals. When an operator attempts to operate the copier, a voice is produced to inform the operator of the malfunction or nonoperative condition of the copier. Voice is produced only when manual-starting or door-opening is sensed.

Abstract: A copying apparatus includes a switch checking system for examining whether or not a switch to be operated through the operation of the copying apparatus is normally operated. The copying apparatus is provided with a switch to be operated through the operation of a movable member and a controlling apparatus having a program set to output a given controlling signal through judgement of the operating condition of the switch. The controlling apparatus has a controlling mode for switch checking operation and a program for displaying the switching condition when the switch has been operated in the controlling mode and the switch checking is adapted to be performed through the mode switching of the controlling apparatus.

Abstract: An improved operator controlled system for a copying machine to minimize user error and to provide a compact control console. An information display member is capable of sequentially displaying an identification of discrete operating features, such as number of copies, etc. A memory is capable of storing a predetermined set of first command signals for each discrete operating feature. A common set of control members permits the user to selectively generate second input command signals relative to any specific operating feature. These same control members are capable of inputing signals for a number of different operating features. The copying machine is capable of discriminating between the input command signals and the particular operating feature. The resulting operation of the copying machine would be in accordance with the predetermined standard set of machine functions or any combination thereof of operator inputed command functions.

Abstract: An improved paper transport control device for use in a mechanical arrangement including a manual paper feeding mechanism, in which at least one of the mechanical operations, such as jam detection, is caused to be inoperative when the paper is drawn out within a predetermined period of time after the paper has been fed manually, so as to enable the immediate resumption of the next mechanical operation even if the paper is drawn out after the manual paper feeding has been started, thus significantly improving the working efficiency of the device.