Abstract: There is provided a cutting method for cutting a work by rotating a rotary tool with a circular cutting edge around an axis while a cutting fluid is supplied thereto. Cutting is performed by means of the rotary tool which is rotated in the same rotational direction as an outflow direction of chips, and the rotary tool is rotated at a rotational speed of the rotary tool at which a circumferential speed of the cutting edge is higher than an outflow speed of the chips. Thus, the area of direct solid contact between the rotary tool and the chips is reduced with the aid of a dynamic pressure effect, and the abrasion of the rotary tool is suppressed.

Abstract: There is provided a cutting method for cutting a work by rotating a rotary tool with a circular cutting edge around an axis while a cutting fluid is supplied thereto. Cutting is performed by means of the rotary tool which is rotated in the same rotational direction as an outflow direction of chips, and the rotary tool is rotated at a rotational speed of the rotary tool at which a circumferential speed of the cutting edge is higher than an outflow speed of the chips. Thus, the area of direct solid contact between the rotary tool and the chips is reduced with the aid of a dynamic pressure effect, and the abrasion of the rotary tool is suppressed.

Abstract: An inkjet recording apparatus provides an improved printing speed and improved convenience of use. A recording head discharges droplets of a recording liquid onto a paper so as to form an image on the paper. A belt conveyance mechanism has a belt onto which the paper is electrostatically attached. The paper attached onto the belt is conveyed in a direction perpendicular to a carding direction of the paper.

Abstract: An inkjet recording apparatus provides an improved printing speed and improved convenience of use. A recording head discharges droplets of a recording liquid onto a paper so as to form an image on the paper. A belt conveyance mechanism has a belt onto which the paper is electrostatically attached. The paper attached onto the belt is conveyed in a direction perpendicular to a carding direction of the paper.

Abstract: In an image forming device comprising an image forming part forming an image on a recording sheet, a sheet ejection part provided above the image forming part and stacking the recording sheet on which the image is formed by the image forming part, and an image reading part provided above the sheet ejection part and reading an image of an original document, the sheet ejection part is provided with a cover which is capable of being opened or closed to the sheet ejection part.

Abstract: A head cleaner is disclosed that includes a blade that has a top face and wipes the nozzle face of a liquid droplet ejecting head that ejects liquid droplets from nozzles, and a cleaning part that cleans the top face of the blade.

Abstract: An image forming apparatus includes a head part having a jet opening part configured to jet ink, a moisture retention cap configured to maintain moisture by covering the jet opening part, and a suction part configured to suction ink situated at the jet opening part. A suction cap having the suction part is provided separately from the moisture retention cap. The image forming apparatus includes a shutter member configured to open or close an opening part of the suction cap. The shutter member comes in contact with a perimeter of an edge part forming the opening part of the suction cap in a case where the shutter member is closed.

Abstract: An image forming apparatus has a recording head forming an image on paper by jetting ink, a conveying part conveying the paper to a position opposite to said recording head, and a reversing ejection part provided downstream in a paper conveyance direction with respect to the position opposite to the recording head, and said reversing ejection part reversing the paper so that a recorded side thereof on which an image has been recorded may face downward and ejecting the paper on an ejecting table.

Abstract: An image forming apparatus includes a maintenance-recovery mechanism including a suction pump. The suction pump includes a tube, a housing, a pressing member, a rotating member, and a regulating member. The tube channels a liquid drawn from. a recording head through one end of the tube by the suction pump and discharges the liquid at another end of the tube. The housing includes an inner wall holding the tube along the inner wall. The rotating member includes a groove engaged with a shaft of the pressing member to guide the pressing member between a first position at which the pressing member presses the tube towards the inner wall of the housing while the pressing member moves along the tube and a second position at which the pressing member does not press the tube. The regulating member coaxially rotates with the rotating member to regulate movement of the pressing member in a circumferential direction.

Abstract: An image forming apparatus includes a head part having a jet opening part configured to jet ink, a moisture retention cap configured to maintain moisture by covering the jet opening part, and a suction part configured to suction ink situated at the jet opening part. A suction cap having the suction part is provided separately from the moisture retention cap. The image forming apparatus includes a shutter member configured to open or close an opening part of the suction cap. The shutter member comes in contact with a perimeter of an edge part forming the opening part of the suction cap in a case where the shutter member is closed.

Abstract: In an image forming device comprising an image forming part forming an image on a recording sheet, a sheet ejection part provided above the image forming part and stacking the recording sheet on which the image is formed by the image forming part, and an image reading part provided above the sheet ejection part and reading an image of an original document, the sheet ejection part is provided with a cover which is capable of being opened or closed to the sheet ejection part.

Abstract: An inkjet recording apparatus provides an improved printing speed and improved convenience of use. A recording head discharges droplets of a recording liquid onto a paper so as to form an image on the paper. A belt conveyance mechanism has a belt onto which the paper is electrostatically attached. The paper attached onto the belt is conveyed in a direction perpendicular to a carding direction of the paper.

Abstract: A head cleaner is disclosed that includes a blade that has a top face and wipes the nozzle face of a liquid droplet ejecting head that ejects liquid droplets from nozzles, and a cleaning part that cleans the top face of the blade.

Abstract: An image forming apparatus has a recording head forming an image on paper by jetting ink, a conveying part conveying the paper to a position opposite to said recording head, and a reversing ejection part provided downstream in a paper conveyance direction with respect to the position opposite to the recording head, and said reversing ejection part reversing the paper so that a recorded side thereof on which an image has been recorded may face downward and ejecting the paper on an ejecting table.

Abstract: An image forming apparatus which uses rolled paper pulls the paper around a decurling roller in order to straighten the paper to allow the paper to remain flat. One or more torque limiting devices which provides a constant angular force against the unrolling of the paper is utilized to provide a force which straightens out or decurls the rolled paper which increases as the radius of the roll of paper decreases. The torque limiting device can be implemented using a spring which grips a rotating cylindrical surface as the surface rotates, a viscous-elastic fluid which provides a resistance against rotation, frictional surfaces, or magnets. The torque limiting device may also be implemented using two springs which provide different resistance against rotation in order to provide different rotational resistance, depending on the direction the roll of paper is rotating.

Abstract: An information recording medium loading/unloading apparatus includes a holder for detachably holding a casing containing the medium. Two pairs of first pins project out from both side surfaces of the holder, each pair being spaced apart from each other in the mounting/removed locus of the casing to the holder. A rocking member is rotatably connected to each first pin, and a second pin projects out from the rocking member at a position spaced apart from the first pin. Two guide members are arranged on both outer sides of the holder and each guide member includes first and second guide slots into which one first pin and one second pin associated thereto on one rocking member. Each guide slot has an inverted L shape with its intersection between a horizontal and vertical extending portions thereof being constituted by a circular curve. The first and second pins in each of the first and second slot are so arranged that the first pin is closer to the vertical portion than the second pin.

Abstract: An optical information detection circuit having first and second photodiodes (referred to as "PD") and two resistances so that a power voltage Vcc is divided by the two resistances. A potential difference between the power voltage Vcc and the connection point between the two resistances is applied as a reverse bias to the first PD, and the potential at the connection point is applied as a reverse bias to the second PD. The photomagnetic signals respectively input to the first and second PD systems of a differential optical detection system have an opposite phase relation therebetween. The first PD and second PD obtain signals from a cathode and an anode, respectively. The currents from the first PD and second PD thus have an in-phase relation, are converted into voltages by the two resistances and summed, as well as being output as a photomagnetic signal from an output terminal at the connection point.

Abstract: A facsimile machine uses cut sheets ofrecording paper of a predetermined size. If data to be recorded requires a cut sheet of paper of a size larger than the cut sheets of paper of the predetermined size set in the facsimile machine for use, then upon completion of recording part of the data on one of the cut sheets of recording paper of the predetermined size, a predetermined number of lines recorded at the end of the one of the cut sheets of paper are once again recorded at the beginning of the next following cut sheet of paper prior to recording of the following portion of the data to be recorded. In this manner, since that portion of data, which is divided between the two consecutive pages, is recorded twice in accordance with the present invention, no information will be lost even if the data to be recorded is significantly long.

Abstract: A phase compensation circuit for use in an automatic control system is disclosed. An input terminal is connected via a first adder, a signal line and a second adder to an output terminal, a series circuit of a variable resistor and a capacitor is connected between the signal line and ground potential, a voltage at a junction between the resistor and capacitor is fed back to the first adder via a first active circuit having an amplification of (1-.beta.) and fed forward to the second adder via a second active circuit having an amplification of (.alpha.-1). When the amplifications (1-.beta.) and (.alpha.-1) of the first and second active circuits are adjusted under the condition of .alpha..beta.=1, a phase angle of a phase-frequency characteristic at a center frequency can be directly controlled, and when the variable resistor is adjusted, the center frequency can be controlled independently from the phase angle.