Abstract:
An inkjet recording apparatus includes a holding face, an inkjet head including plural nozzles arranged along a predetermined direction correspondingly with a predetermined resolution, a first moving mechanism which performs a first movement of moving at least one of the inkjet head and the holding member in a direction perpendicular to the predetermined direction, a second moving mechanism which performs a second movement of moving the holding member in the predetermined direction, and a first movement controlling unit which controls the first moving mechanism to perform the first movement first and second times. In the second time, the inkjet head and the holding member are moved in directions that are opposite to directions in the first time. A second movement controlling unit controls the second moving mechanism to, after the first movement for the first time, perform the second movement by one half of a distance corresponding to the predetermined resolution.
Abstract:
An ink-jet recording apparatus comprises a first roller, a second roller, a looped conveyor belt, a conveyance face formed on the conveyor belt to convey a record medium, an ink-jet head, and a roller supporter. The conveyor belt is wrapped around the first and second rollers to be stretched between the first and second rollers. The ink-jet head has an ink ejection face on which nozzles each of which ejects ink are formed. The roller supporter supports the first roller so that the first roller can be swung between a conveyance position where the conveyance face is opposed to the ink ejection face in a state wherein the conveyance face is parallel to the ink ejection face, and a withdrawal position where the conveyance face is distant from the ink ejection face by a distance larger than the distance between the conveyance face and the ink ejection face when the first roller is at the conveyance position, with a swing radius shorter than the distance between the axes of the first and second rollers when the first roller is at the conveyance position.
Abstract:
When a sheet cassette having a roll of paper is attached to a body of a printer, a leading edge of a sheet is always brought to position at a certain position. When the sheet cassette is not attached to the printer body, a stopper, provided near an end of a lever, protrudes to the outside from an opening, so that the leading edge of the sheet, which has passed between a pair of correcting rollers, abuts against the stopper. When the sheet cassette is attached to the printer body, the lever rotates in a clockwise direction, so that the stopper retracts in the opening.
Abstract:
A conveyor unit in an image recording apparatus can convey a record medium, being unwound from a roll, in either of a first direction in which the roll is unwound and a second direction reverse to the first direction. The image recording apparatus includes first and second contact mechanisms capable of bringing the record medium into close contact with a conveyor member at positions distant in the respective first and second directions from an image recording position where an image recording head records an image on the record medium. The first contact mechanism brings the record medium, being conveyed in the first direction, into close contact with the conveyor member. The second contact mechanism brings a part of the record medium, being conveyed in the second direction, into close contact with the conveyor member, which part was beyond the conveyor member in the first direction when the conveyance direction of the record medium by the conveyor member was switched from the first direction to the second direction.
Abstract:
A supporting apparatus for moving an attachment apparatus, such as a display apparatus, relative to a basic apparatus, such as a printing apparatus, to a desired position for an operator. A vertical shaft for supporting the display apparatus can be shifted from an engaging position to a release position by the rocking operation of an operation member around its supporting shaft through a pivot pin projecting from the bottom portion of the vertical shaft. At the release position, the vertical shaft is allowed free rotation, which in turn sets the display apparatus to the desired swivel position. At the engaging position, a swivel positioning means is enabled so as to prevent the rotation of the vertical shaft, thus fixing the display apparatus at the set swivel position.
Abstract:
A typewriter with a character erasing apparatus capable of consecutively erasing a series of characters as well as a single character once printed on a sheet of printing paper. The typewriter is provided with a retaining crank movable to first, second and third positions. In the first position the retaining crank retains a ribbon vibrator supporting an erase ribbon in non-operative status. In the second position the retaining crank permits the ribbon vibrator to operate while interrupting transmission of power for moving a platen. The retaining crank is automatically restored to the first position in response to return movement of the ribbon vibrator after the single character erasing. The retaining crank is moved to and held at the third position by a manual member for permitting the ribbon vibrator to operate consecutively. The retaining member does not interrupt the transmission of the power for moving the platen. Therefore, while the retaining crank is in the third position a series of characters are consecutively erased by usual typing.
Abstract:
A pump includes a case, a rotor, and a partition member. The case has a hollow inside defined by an inner wall surface thereof and includes a suction inlet through which fluid is sucked in the hollow and an exhaust outlet through which the fluid is ejected from the hollow. The rotor is rotatable in the hollow. The partition member is supported with respect to the rotor in the direction across the rotor such that two ends make constant contact with the inner wall surface defining the hollow, and is rotatable with the rotor. When the rotor is rotated, the partition member slides in the direction across the rotor and expands and shrinks in the same direction, thereby the two ends of the partition member make constant contact with the inner wall surface of the case. Accordingly, the fluid is sucked through the suction inlet in the hollow and the sucked fluid is ejected through the exhaust outlet from the hollow.
Abstract:
An ink jet printer is provided, which intermittently dispenses cleaning liquid onto ink that is adhered to an endless belt that carries printing sheets. A cleaning liquid dispenser is driven by a rotator that rotates in association with the rotation of the endless belt. The rotation position of the rotator is set as a reference, in order to control the feed timing. In this way, a gap can be maintained between two printing sheets that are carried by the endless belt, ink can be jetted toward the gap, and cleaning liquid can be dispensed on the gap. A print process and a flushing process can be sequentially repeated.
Abstract:
An ink-jet recording apparatus comprises a first roller, a second roller, a looped conveyor belt, a conveyance face formed on the conveyor belt to convey a record medium, an ink-jet head, and a roller supporter. The conveyor belt is wrapped around the first and second rollers to be stretched between the first and second rollers. The ink-jet head has an ink ejection face on which nozzles each of which ejects ink are formed. The roller supporter supports the first roller so that the first roller can be swung between a conveyance position where the conveyance face is opposed to the ink ejection face in a state wherein the conveyance face is parallel to the ink ejection face, and a withdrawal position where the conveyance face is distant from the ink ejection face by a distance larger than the distance between the conveyance face and the ink ejection face when the first roller is at the conveyance position, with a swing radius shorter than the distance between the axes of the first and second rollers when the first roller is at the conveyance position.
Abstract:
An image forming apparatus for forming an image on a photosensitive recording medium by exposing the photosensitive recording medium to light by way of a mask member which is placed on an exposure station. The apparatus comprises a first transport device which transports the mask member through the exposure station and a second transport device which transports the photosensitive recording medium through the exposure station. A first exposure unit irradiates light upon the photosensitive record medium by way of said mask member at the exposure station to record an image formed on the mask member on the photosensitive recording medium. Alternatively, when a mask member is not used, a second exposure unit directs light through an auxiliary member having a light-passing image thereon to project and record the light-passing image onto the photosensitive recording medium.