Abstract: An inkjet recording apparatus including: a recording head; a recording medium moving section; a position information detecting section synchronized with a movement of the recording medium moving section; a mark recording section for recording a mark on the recording medium; a mark detecting section for detecting the mark recorded; an analog-to-digital conversion section for converting an output signal; and a control section for obtaining a reference mark position of the mark based on a signal outputted from the mark detecting section and the position information detected, and for determining the amount of recording medium movement on the basis of reference detection position of the mark; wherein analog-to-digital conversion is applied to the output signal from the mark detecting section to get a sampling data, in exact timing with an output of position information, and the control section calculates the reference detection position from the sampling data.

Abstract: An inkjet recording apparatus including: a recording head; a recording medium moving section; a position information detecting section synchronized with a movement of the recording medium moving section; a mark recording section for recording a mark on the recording medium; a mark detecting section for detecting the mark recorded; an analog-to-digital conversion section for converting an output signal; and a control section for obtaining a reference mark position of the mark based on a signal outputted from the mark detecting section and the position information detected, and for determining the amount of recording medium movement on the basis of reference detection position of the mark; wherein analog-to-digital conversion is applied to the output signal from the mark detecting section to get a sampling data, in exact timing with an output of position information, and the control section calculates the reference detection position from the sampling data.

Abstract: An ink jet head, comprises partition walls made of an piezoelectric material and for dividing ink chambers; and driving electrodes provided on the partition walls, wherein lead conductors each of which is provided at a bottom portion of each ink chamber and is connected with a driving circuit, each lead conductor connected with the driving electrode so that a voltage is applied from the driving circuit through the lead conductor to the driving electrodes for each ink chamber, whereby the partition walls are deformed by shearing forces and an ink is jetted from each ink chamber.

Abstract: In a liquid jetting apparatus provided with a head provided with a liquid jetting section; a feeding section for feeding a liquid to the head; and a control section for controlling the liquid jetting section to jet the liquid such that a jetting trace of the liquid is recorded on a recording medium; the liquid jetting apparatus is further provided with a liquid ejecting section for varying a pressure in the head in plural steps so as to eject the liquid in the head from the liquid jetting section.

Abstract: An ink jet head, comprises partition walls made of an piezoelectric material and for dividing ink chambers; and driving electrodes provided on the partition walls, wherein lead conductors each of which is provided at a bottom portion of each ink chamber and is connected with a driving circuit, each lead conductor connected with the driving electrode so that a voltage is applied from the driving circuit through the lead conductor to the driving electrodes for each ink chamber, whereby the partition walls are deformed by shearing forces and an ink is jetted from each ink chamber.

Abstract: In an ink jet printer provided with a printing head having an ink chamber, a piezoelectric element and a nozzle tip; the printer is further provided with a drive signal generating circuit for generating drive signals corresponding to image information, a temperature sensor for measuring the temperature of the printing head; and a heating signal generating circuit for generating a heating signal on the basis of the temperature of the printing head measured by the temperature sensor. The piezoelectric element vibrates in response to the heating signal and generates heat so that the ink in the ink chamber is heated.

Abstract: A driving apparatus for a printer, includes: a first memory for successively storing pixel data by one pixel on the basis of data of a plurality of bits constituting one pixel which represents gradation, which are inputted in parallel, and after storing a predetermined number of pixel data, for outputting in parallel the stored pixel data; a position information signal outputting device provided in accordance with each of outputs from the first memory for outputting a position information signal within a pixel according to each pixel data of the first memory; and a recording device provided in accordance with each of outputs from the position information signal outputting device and driven according to the position information signal within the pixel.

Abstract: An electric circuit provided with an abnormal condition detector for a motor, for use in a toner image forming apparatus, includes a current detection circuit for detecting a presence of a current when a power supply circuit is switched OFF; a test circuit for confirming a line connection between a control circuit and a switch by transmitting a test signal between the control circuit and the switch and a control circuit for determining an abnormal section causing an abnormal condition of a motor.

Abstract: A method of indicating a setting screen of an image forming machine on which a touch-panel is displayed, wherein automatic setting conditions and a manual mode button are displayed on an initial screen; and when a touch operation is conducted on the manual mode button, a manual setting screen is indicated and an operating condition can be manually set by a touch operation on the manual setting screen.

Abstract: A sorter, which sorts sheets transferred from an image forming apparatus to form a plurality of sheet stacks and staples each sheet stacks, is disclosed herewith. The sorter is provided with a plurality of bins arrayed in an upright direction for stacking the sorted sheets, and is provided also with a stapler to staple each sheet stack. The bin is adapted to swing horizontally between a first angular position to stack the sorted sheets and a second angular position to undergo the stapling of the sheet stack by the stapler. The stapler is adapted to move along the upright direction through a plurality of stapling positions, and staples each sheet set at each stapling position.

Abstract: A sorter provided with a stapler for use with an image forming apparatus, in which there are provided a plurality of bins each for accommodating various widths of recording sheets delivered from the image forming apparatus, the center of the sheets being positioned in the center of the bins. An aligner aligns the accommodated sheets by pushing the sides of the sheets toward a reference stop wall on each of the bins, and a casing to house the bins is integrated into a unit. The casing is movable in a direction at right angles to a feeding direction of the sheets, and is moved to correspond with the width of the sheets. The home position of the casing is set to a position where the minimum width of sheets are accommodated.

Abstract: The invention provides a copying apparatus for producing a required number of copy sets of two-sided copy from document sheets of an original by selecting one of ADF mode in which the required number of copy sets are produced simultaneously and RDH mode in which the required number of copy sets are produced one set by one set.

Abstract: An automatic document conveyer for use with a photoelectric copier which copies an image of a document at a platen of the photoelectric copier onto a copying sheet. The document conveyor includes a first conveyor part for conveying the documents one by one to the platen, and a second conveyor part for conveying the documents from the platen to the outside of the photoelectric copier after a copying operation. The first conveyor part conveys the documents at either a fast speed or a slow speed, and conveys the documents at the slow speed while a forwarded document is placed at the platen.

Abstract: An automatic document feeding apparatus in which a plurality of documents are sequentially fed to an image exposure section. Before the completion of the exposure of a foregoing document, the feeding of a following document is started to place the document on a given position before the image exposure section and stopped thereon temporarily for stand-by. The position of the temporary stop of the following document can be varied in accordance with document size detecting signals from a document size detector or selected in such a manner that the distance between the trailing end of the foregoing document and the leading end of the following document becomes constant substantially irrespective of the size of the document.

Abstract: A document feeding apparatus having a conveyor belt which moves documents along a platen glass plate of a photoreproducing machine, first and second rollers which support the conveyor belt, a driving source connected to the first roller, and a member for driving the second roller so that it prevents the conveyor belt from slackening. In preferred forms of the device, the first roller is connected to the second roller by a one-way clutch and the line speed of the first or second roller on the document feed side is greater than the line speed of the first or second roller on the discharge side.

Abstract: A recorded sheet handling apparatus includes an intermediate holding section as a stacker for holding a set of recorded sheets externally fed one by one and stacked in a feeding order, a handling unit for selectively punching and/or stapling the set of recorded sheets held in the intermediate holding section at a holding position, a storage tray for storing the handled recorded sheets, first convey rollers for conveying the recorded sheets prior to handling to the intermediate holding section, and second convey rollers for conveying the handled recorded sheets to the storage tray.

Abstract: A paper discharge apparatus for a recording system includes a plurality of vertically movable bins, arranged vertically stepwise, for receiving a recorded sheet discharged from a recording system main body, a lifting mechanism, a shifting unit, and a selection shift selecting unit, and a shift operation control unit. The lifting mechanism moves the bins upward/downward stepwise in synchronism with a sheet discharging operation in a sort mode. The shifting unit transversely shifts a discharging direction of a recorded sheet from a normal discharging direction. The selection shift selecting unit selects a shift mode or a non-shift mode as a discharge mode.

Abstract: An apparatus with a document feeder for sequentially copying plural sheets of documents. When a document longer than a predetermined length is detected by a sensor, a stopper for aligning the document at a predetermined position is withdrawn in order to prevent the document from being damaged. At the same time, an indicator is turned on, warning the operator of jamming.

Abstract: A recorded sheet handling apparatus includes a holding unit for temporarily holding a set of recorded sheets externally fed one by one, a pair of side plates for moving the recorded sheets by a predetermined distance in a direction perpendicular to a recorded sheet convey direction prior to stapling when a size of the recorded sheets is a predetermined size, a punching machine and staplers for punching or stapling the set of recorded sheets while the sheets are held by the holding unit, and a conveying unit for conveying the punched or stapled copied sheets so as to exhaust the sheets.

Abstract: A document feeding apparatus wherein a member for regulating the rear end of a document is provided movably in non-stepped manner substantially in a document feeding direction at the back of a document stacker having a paper feeding unit at the forward portion thereof. The movement of the rear end regulating member is controlled by a control device. A movable paper discharging device is provided. The movable paper discharging device has a discharging member, which is trained so as to surround the rear end portion of the document stacker in the shape of letter "C".