Abstract: A liquid ejecting head is operable to eject liquid toward a target medium. A light emitter is operable to emit light. A light receiver is adapted to receive the light emitted from the light emitter, and operable to output a signal in accordance with an amount of the received light, thereby detecting a position of the liquid ejecting head. A transparent member is elongated in a first direction and disposed between the light emitter and the light receiver. A line pattern is provided with the transparent member so as to oppose the light emitter, and including light transmitting sections and light shielding sections which are alternately arranged in the first direction with a first pitch. Each of the light transmitting sections is adapted to allow the light emitted from the light emitter to pass through. Each of the light shielding sections is adapted to shield the light emitted from the light emitter.

Abstract: An ink cartridge having a container for storing ink therein and having an ink supply port formed at a leading end side in an insertion direction of the container, a memory device disposed on a first of two opposite surfaces parallel to the insertion direction of the container, the memory device having an electrode for electrical connection to the recording device; a retaining member disposed on the first surface and located at a trailing end side relative to the memory device in the insertion direction, the retaining member serving to selectively engage with the recording device; and another retaining member disposed on the second surface and which also serves to selectively engage with the recording device.

Abstract: A retention device for an ink cartridge for engaging and retaining a locking lever when the ink cartridge is attached to a carriage such that a contact between conductive connection portions of a cartridge-side substrate of the ink cartridge and contact terminals of a connector is in a desired state, the retention device includes: a position regulation portion that is provided at a mounting place of the ink cartridge in the carriage, and that is brought into contact with a part of the locking lever and regulates an engagement position of the locking lever when the ink cartridge is attached to the carriage.

Abstract: A recording apparatus has a recording medium feeding mechanism for feeding a recording medium by one at a time, a recording head for performing recording, a discharging roller having a discharging driven roller and a discharge driving roller and a recording medium stacker capable of being changed to a first position in which recording is performed on a hard recording medium and a second position in which recording is performed on a recording medium fed by the recording medium feeding mechanism, wherein the discharging driven roller is in contact with the discharge driving roller in case the recording medium stacker is in second position, and the discharging driven roller is separated from a recording medium transfer path in case the recording medium stacker is in first position.

Abstract: An ink cartridge having a container for storing ink therein and having an ink supply port formed at a leading end side in an insertion direction of the container, a memory device disposed on a first of two opposite surfaces parallel to the insertion direction of the container, the memory device having an electrode for electrical connection to the recording device; a retaining member disposed on the first surface and located at a trailing end side relative to the memory device in the insertion direction, the retaining member serving to selectively engage with the recording device; and another retaining member disposed on the second surface and which also serves to selectively engage with the recording device.

Abstract: An ink cartridge having a container for storing ink therein and having an ink supply port formed at a leading end side in an insertion direction of the container, a memory device disposed on a first of two opposite surfaces parallel to the insertion direction of the container, the memory device having an electrode for electrical connection to the recording device; a retaining member disposed on the first surface and located at a trailing end side relative to the memory device in the insertion direction, the retaining member serving to selectively engage with the recording device; and another retaining member disposed on the second surface and which also serves to selectively engage with the recording device.

Abstract: An ink cartridge has pivotable levers connected to walls of a container, and both pawls and protruded guide portions formed on the levers. The pawls are engageable with an ink cartridge holder. The protruded guide portions contact the ink cartridge holder to move the levers in the opening direction. Further, protruded stopper portions are formed to permit pivoting movement of the levers to such a degree as to disengage the pawls from the ink cartridge holder.

Abstract: A liquid ejecting head is operable to eject liquid toward a target medium. A light emitter is operable to emit light. A light receiver is adapted to receive the light emitted from the light emitter, and operable to output a signal in accordance with an amount of the received light, thereby detecting a position of the liquid ejecting head. A transparent member is disposed between the light emitter and the light receiver. A first line pattern is provided with the transparent member so as to oppose the light emitter, and includes first light transmitting sections and first light shielding sections which are alternately arranged in a first direction with a first pitch. A first actuator is operable to move either the light receiver or the transparent member in a second direction perpendicular to the first direction, thereby varying a distance between the transparent member and the light receiver.

Abstract: A position detecting device, includes a light emitting portion that includes a light emitting surface which emits light, a light receiving portion that includes a light receiving surface which receives the light from the light emitting portion, a scale that is arranged between the light emitting surface and the light receiving surface, and a cleaning member that is fixed to the scale to clean at least one of the light emitting surface and the light receiving surface.

Abstract: A liquid ejecting head is operable to eject liquid toward a target medium. A light emitter is operable to emit light. A light receiver is adapted to receive the light emitted from the light emitter, and operable to output a signal in accordance with an amount of the received light, thereby detecting a position of the liquid ejecting head. A transparent member is elongated in a first direction and disposed between the light emitter and the light receiver. A line pattern is provided with the transparent member so as to oppose the light emitter, and including light transmitting sections and light shielding sections which are alternately arranged in the first direction with a first pitch. Each of the light transmitting sections is adapted to allow the light emitted from the light emitter to pass through. Each of the light shielding sections is adapted to shield the light emitted from the light emitter.

Abstract: A position detecting device for detecting a position of an object, includes a light emitting portion that emits light, a light receiving portion that receives the light from the light emitting portion, and a scale that is arranged between the light emitting portion and the light receiving portion, and includes a position detecting pattern and a smear detecting pattern. The position detecting pattern has a first light transmitting portion for transmitting the light from the light emitting portion and a first light interception portion for intercepting the light from the light emitting portion which are alternately arranged in a detection range of the object. The smear detecting pattern for detecting smear of the scale has a second light transmitting portion for transmitting the light from the light emitting portion and a second light interception portion for intercepting the light from the light emitting portion which are alternately arranged.

Abstract: A light emitter is operable to emit light. A light receiver is adapted to receive the light emitted from the light emitter, and operable to output a signal in accordance with an amount of the received light, thereby detecting a position of an object. At least one transparent member is disposed between the light emitter and the light receiver. A first line pattern is provided with the transparent member so as to oppose the light emitter, and includes first light transmitting sections and first light shielding sections which are alternately arranged in a first direction with a first pitch. A second line pattern is provided with the transparent member so as to oppose the light receiver, and includes second light transmitting sections and second light shielding sections which are alternately arranged in the first direction with a second pitch. Each of the first light transmitting sections is adapted to allow the light emitted from the light emitter to pass through.

Abstract: A method of obtaining a correction value of an optical sensor detecting an edge of the medium so as to generate detection information, includes: acquiring edge information on an edge position of one of opposite edges of the medium based on the detection information; forming on the medium a correction value obtainment pattern including lines that are arranged at a fixed interval in a first direction and parallel to a second direction perpendicular to the first direction so as to form a step shape and that include a reference line spaced a first distance from the edge position in the first direction and parallel to the second direction, based on the edge information; specifying a line spaced the first distance from the edge position in the first direction and corresponding to one of the lines of the correction value obtainment pattern, by means of actual measurement performed by an operator; obtaining a second distance in the first direction between the specified line and the reference line, based on line infor

Abstract: An ink cartridge has pivotable levers connected to walls of a container, and both pawls and protruded guide portions formed on the levers. The pawls are engageable with an ink cartridge holder. The protruded guide portions contact the ink cartridge holder to move the levers in the opening direction. Further, protruded stopper portions are formed to permit pivoting movement of the levers to such a degree as to disengage the pawls from the ink cartridge holder.

Abstract: A light emitter is operable to emit light. A scale comprises a transparent main body and a plurality of marks. The transparent main body has a first face and the second face which is opposite to the first face. The plurality of marks is provided on at least one of the first face and the second face and formed at a predetermined interval, and adapted to reflect or intercept the light emitted from the light emitter. A light detector is operable to detect light reflected by the marks or light passing through a plurality of regions each of which is defined between adjacent ones of the marks. The main body of the scale is formed with a plurality of through holes each of which connects the first face and the second face at one of the regions.

Abstract: There is provided a liquid ejecting apparatus for ejecting liquid to a printing material, having a platen for supporting the printing material, an ejection head for ejecting the liquid to the printing material by reciprocating on the printing material supported by the platen, an optical sensor reciprocating together with the ejection head and having a light emitting section for emitting light toward the printing material and the platen and a light receiving section for receiving light reflected from the printing material to optically detect whether or not the printing material exists, a usage measuring section for measuring usage of the liquid ejecting apparatus and a correcting section for correcting a result detected by the optical sensor based on the usage measured by the usage measuring section.

Abstract: An ink cartridge has pivotable levers connected to walls of a container, and both pawls and protruded guide portions formed on the levers. The pawls are engageable with an ink cartridge holder. The protruded guide portions contact the ink cartridge holder to move the levers in the opening direction. Further, protruded stopper portions are formed to permit pivoting movement of the levers to such a degree as to disengage the pawls from the ink cartridge holder.

Abstract: A chain guide improves bending rigidity while satisfying requirements for compactness and weight reduction of an engine and restricting cost increases. The chain guide includes a guide body having an engaging protrusion capable of engaging with a long engaging hole formed in an engine block in a longitudinally slidable manner and a shoe fixed over the guide body and having a chain sliding surface. In this case, an upward support of the engaging protrusion of the guide body in the engaging hole of the engine block results in an increase in the bending rigidity of the whole chain guide. Moreover, the engaging protrusion of the guide body is only inserted into the engaging hole of the engine block. This does not cause an increase in size and weight, and causes only a slight change of a mold, leading to less cost increases.

Abstract: An ink cartridge has pivotable levers connected to walls of a container, and both pawls and protruded guide portions formed on the levers. The pawls are engageable with an ink cartridge holder. The protruded guide portions contact the ink cartridge holder to move the levers in the opening direction. Further, protruded stopper portions are formed to permit pivoting movement of the levers to such a degree as to disengage the pawls from the ink cartridge holder.

Abstract: The present invention relates to a liquid ejecting apparatus including: a movable head provided with a plurality of nozzles for ejecting a liquid; a carry unit for carrying a medium in a predetermined carrying direction; and a sensor for detecting an edge of the medium, the liquid ejecting apparatus controlling ejection of the liquid from the plurality of nozzles in accordance with a result of the detection of the sensor. In this liquid ejecting apparatus, the position, in the carrying direction, of the sensor is at the same position of or on an upstream side of a nozzle located most upstream in the carrying direction, of among the plurality of nozzles. In this way, it is possible to arrange the sensor for detecting the edge of the paper at the most suitable position, and to suppress waste of ink that is ejected from the nozzles.