Abstract: An image forming apparatus includes a body including a recording side to be disposed opposite a recording medium and an operation face opposite the recording side. The image forming apparatus further include an image forming device supported on the recording side and configured to form an image on the recording medium, an operation input device configured to input an image formation instruction, and a power operation device configured to power on and off the image forming apparatus. On the operation face, the operation input device is disposed at a first position shifted from a center position on the operation face in a predetermined direction, and the power operation device is disposed at a second position located on an opposite side of the first position with respect to the center position on the operation face.

Abstract: An image forming apparatus includes a body including a recording face to be disposed opposite a recording medium, a recording device supported by the body and configured to record an image on the recording medium, a rotator including a rotation shaft and configured to contact and rotate on the recording medium, and a rotator holder configured to hold the rotator. The rotator holder includes a tilt restriction portion and a normal direction pressed portion being a different component from the tilt restriction portion. The tilt restriction portion is to restrict a tilt of the rotation shaft of the rotator around a virtual axis orthogonal to the recording face. The normal direction pressed portion is to receive force in a direction normal to the recording face, exerted from the rotator, the normal direction pressed portion being a different component from the tilt restriction portion.

Abstract: An image forming apparatus includes a recording device configured to record an image on a recording medium, a main body configured to house the recording device, and a cover rotatably attached to the main body. The main body includes a recording face to be disposed opposite the recording medium, a first face positioned opposite the recording face, and a second face positioned between the recording face and the first face. The cover includes a first cover portion configured to cover the first face of the main body, and a second cover portion configured to cover at least a portion of the second face, and the second cover portion is configured to house a battery.

Abstract: A hand-held recording apparatus includes a recording section, a housing, and an indicator. The recording section records an image on a recording material in moving in a scanning direction. The housing houses the recording section. The indicator is movable between an indication position at which the indicator opposes the recording material and indicates a recording area of the image of the recording section and a retracted position at which the indicator is retracted from the indication position.

Abstract: An image forming apparatus includes a body, a recording device supported by the body and including a recording section configured to form an image on a recording medium, and two roller portions provided to the body. The two roller portions are configured to rotate on the recording medium while the body is moved in a scanning direction for image formation. The two roller portions are combined into a roller unit to rotate coaxially.

Abstract: A mobile image forming apparatus includes a body, a recording device supported by the body and configured to form an image on a recording medium, a roller provided to the body and configured to rotate on the recording medium while the body is moved in a scanning direction for image formation. The mobile image forming apparatus further includes a switching device configured to switch a state of the mobile image forming apparatus during image formation between a roller contact state in which the roller is in contact with the recording medium and a roller contactless state in which the roller is contactless with the recording medium.

Abstract: A mobile image forming apparatus includes a body; a recording device supported by the body and configured to form an image on a recording medium, and at least one roller provided to the body and configured to rotate on the recording medium while the body is moved in a scanning direction for image formation. The mobile image forming apparatus further includes at least one pressing member disposed in contact with the at least one roller and configured to press the at least one roller in a roller axial direction.

Abstract: A sheet stacker includes a body to stack a sheet, a fence to regulate a position of the sheet, and a support. The body includes a groove extending in a predetermined direction. The support includes a support portion to support the fence and a projection extending in the predetermined direction. The groove engages with the projection in a sheet stacking direction to secure the support. The fence is supported to be rotatable about the support portion of the support.

Abstract: A hand-held recording apparatus includes a recording section, a housing, and an indicator. The recording section records an image on a recording material in moving in a scanning direction. The housing houses the recording section. The indicator is movable between an indication position at which the indicator opposes the recording material and indicates a recording area of the image of the recording section and a retracted position at which the indicator is retracted from the indication position.

Abstract: An image forming apparatus includes a body, an image carrier provided in the body and configured to form an image thereon, a first gear to transmit a rotation driving force to the image carrier, a first rotary shaft to which the image carrier and the first gear are attached, a second gear to mesh with the first gear and transmit the rotation driving force to the first gear, a second rotary shaft to which the second gear is attached, a drive source configured to drive to rotate the image carrier via the first gear and the second gear, a first holder to hold the first rotary shaft of the first gear, and a second holder to hold the second rotary shaft of the second gear, and a relative position between the first holder and the second holder therein is adjustable.

Abstract: An image forming apparatus includes an image forming unit, first and second rotary shafts, a drive source to rotate at a predetermined low velocity and a predetermined high velocity, a first rotary transmitter connected between the drive force and the first rotary shaft, a second rotary transmitter connected between the drive force and the second rotary shaft, and a drive block member connected between the drive source and the second rotary shaft to block transmission of the drive force to the second rotary shaft when the drive source rotates at the predetermined high velocity. When the drive source rotates at the predetermined low velocity, the drive source drives the second rotary shaft using a difference in torque between an upper limit in high velocity rotation and an upper limit in low velocity rotation greater than the upper limit in high velocity rotation.

Abstract: An image forming apparatus includes a body, an image carrier provided in the body and configured to form an image thereon, a first gear to transmit a rotation driving force to the image carrier, a first rotary shaft to which the image carrier and the first gear are attached, a second gear to mesh with the first gear and transmit the rotation driving force to the first gear, a second rotary shaft to which the second gear is attached, a drive source configured to drive to rotate the image carrier via the first gear and the second gear, a first holder to hold the first rotary shaft of the first gear, and a second holder to hold the second rotary shaft of the second gear, and a relative position between the first holder and the second holder therein is adjustable.

Abstract: A sheet feeder stackable in multiple levels and attachable to an image forming apparatus. The sheet feeder includes a drive source, a drive transmission unit, a first drive coupling unit, a second drive coupling unit, a sheet feed roller, and a grip roller. During operation of multiple sheet feeders stacked in the multiple levels, the drive transmission unit and the first drive coupling unit, both provided to a given sheet feeder of the multiple sheet feeders, are coupled to each other, and the first drive coupling unit of the given sheet feeder is coupled to the grip roller of an adjacent sheet feeder disposed immediately below the given sheet feeder to drive the grip roller of each of the multiple sheet feeders substantially in synchrony.

Abstract: A sheet feeder stackable in multiple levels and attachable to an image forming apparatus. The sheet feeder includes a drive source, a drive transmission unit, a first drive coupling unit, a second drive coupling unit, a sheet feed roller, and a grip roller. During operation of multiple sheet feeders stacked in the multiple levels, the drive transmission unit and the first drive coupling unit, both provided to a given sheet feeder of the multiple sheet feeders, are coupled to each other, and the first drive coupling unit of the given sheet feeder is coupled to the grip roller of an adjacent sheet feeder disposed immediately below the given sheet feeder to drive the grip roller of each of the multiple sheet feeders substantially in synchrony.

Abstract: An image forming apparatus includes an image forming unit, first and second rotary shafts, a drive source to rotate at a predetermined low velocity and a predetermined high velocity, a first rotary transmitter connected between the drive force and the first rotary shaft, a second rotary transmitter connected between the drive force and the second rotary shaft, and a drive block member connected between the drive source and the second rotary shaft to block transmission of the drive force to the second rotary shaft when the drive source rotates at the predetermined high velocity. When the drive source rotates at the predetermined low velocity, the drive source drives the second rotary shaft using a difference in torque between an upper limit in high velocity rotation and an upper limit in low velocity rotation greater than the upper limit in high velocity rotation.

Abstract: A probe unit comprising a base in the form of a rectangular plate and a plurality of ultrathin metal wires which are partially secured to the base at a given pitch. Each of the wires comprises a straight portion firmly secured to the base, a bent portion located on an extension of the straight portion, and an inclined portion inclined from the bent portion outwardly of the base toward an inspected surface of an object to be inspected, and an R-shaped portion extending from the front end of the inclined portion outwardly of the base. The bent portion protrudes outwardly from the base and is bent toward the inspected surface. The R-shaped portion forms each probe pin bearing against the inspected surface.

Abstract: A process of producing a solvent useful in coal liquefaction which includes separating the heavy liquid produced from the liquefaction of coal into a fraction boiling at 200.degree. to 210.degree. C., a fraction boiling at 211.degree. to 230.degree. C., and a fraction boiling at not less than 231.degree. subjecting the fraction boiling at 211.degree. to 230.degree. C. to a hydrogenation treatment to produce a hydrogenated fraction, mixing the hydrogenated fraction with the fraction boiling at 200.degree. to 210.degree. C. to form a resultant mixture, and mixing a portion of the resultant mixture with a portion of the fraction boiling at not less than 231.degree. C. Alternately, the solvent is produced from the heavy liquid by separating it into a fraction boiling at 200.degree. C. to 210.degree. C., a fraction boiling at 211.degree. C. to 230.degree. C., a fraction boiling at 231.degree. C. to 250.degree. C., a fraction boiling at 251.degree. C. to 350.degree. C. and a fraction boiling at not less than 351.

Abstract: A solvent useful in coal liquefaction is obtained by separating the heavy liquid resulting from coal liquefaction into a fraction boiling at temperatures of between 200.degree. to 210.degree. C., a fraction boiling at temperatures between 211.degree. to 250.degree. C., and a fraction boiling at not less than 250.degree. C., subjecting the fraction boiling at between 211.degree. C. to 250.degree. C. to two hydrogenation treatments, mixing the hydrogenated product with the fraction boiling at between 200.degree. to 210.degree. C. which optionally has been hydrogenated to form a resultant mixture and mixing a portion of the resultant mixture with the fraction boiling at not less than 250.degree. C. which has been optionally hydrogenated.

Abstract: An impregnated carbonaceous material which can be mixed with basic coal to form a mixture which, once roasted, forms an effective shaft furnace coke. The impregnated carbonaceous material is formed by finely crushing an inert carbonaceous material such as powdered coke, coal gasification char, coal liquifaction residue coal, oil coke, and semi-dry-distilled char, and mixing and impregnating the crushed carbonaceous material with an aromatic pitch such as coal tar, coal tar pitch, asphalt, and pitch obtained by heat-treating or solvent extracting an asphalt. The mixing is conducted at a temperature above the aromatic pitch melting point. The impregnated carbonaceous material contains preferably 50 to 95 parts by weight of crushed inert carbonaceous material and 5 to 50 parts by weight aromatic pitch.

Abstract: A method of manufacturing blast furnace coke wherein said coke is obtained by a process in which coal to be used for making briquettes is mixed with a caking substance having a softening point of 40.degree.-250.degree. C. with or without a solvent having fluidity at the mixing temperature and dissolvable to said caking substance, the resultant mixture being mixed by means of a powerful mixer capable of applying mixing energy of 0.01KW/Kg or more at a temperature of 40.degree.-250.degree. C. for 1-10 minutes, while a heating medium such as steam is passed therethrough and is then subjected to briquetting with a roll press. The briquette obtained is either carbonized directly or after blending with coal ready for coke oven charging.