Abstract: A printing apparatus includes a first feeding part configured to feed print media from a first support part supporting the print media, a second feeding part configured to feed print media from a second support part supporting the print media, and a print head configured to print on the print media fed by the first feeding part or the second feeding part. Further, the printing apparatus includes a first conveying path where the print media fed by the first feeding part are conveyed to the print head, and a second conveying path where the print media fed by the second feeding part are conveyed to the print head. At least a part of the second feeding part protrudes in a predetermined spatial area within the first conveying path during a feed operation of feeding print media from the second support part.

Abstract: A print media feeding apparatus includes a stacking part configured to stack print media; a feeding roller which is movable to an abutting position at which the feeding roller contacts the print media stacked on the stacking part and to a separated position separated from the print media stacked on the stacking part and configured to feed a print medium by rotating at the abutting position; a separation member configured to separate the print media; and a return unit configured to perform a return operation of returning the print medium other than a top print medium which the feeding roller abuts. The feeding roller moves to the separated position after feeding the print medium from the stacking part. The return unit performs the return operation upon the feeding roller moving to the separated position. After the return operation, the feeding roller stops at the abutting position.

Abstract: A sheet feeding device and a printing apparatus capable of estimating a number of remaining sheets without error include a loading member on which sheets are loaded, a lift unit that moves the loading member up and down, a position detection unit that detects a lift-up position to which the loading member moves up, a sheet detection unit that detects that a sheet at an uppermost position of the sheets loaded on the loading member has moved up to a feeding position by an upward movement of the loading member, a feeding roller that feeds a sheet at the feeding position, and an estimation unit that estimates the number of remaining sheets loaded on the loading member based on a combination of detection results of the sheet detection unit and the position detection unit.

Abstract: Provided is a technique that enables application of additional conveyance force to a print medium and conveyance of various sizes of print media without multi-feed. A conveyance device includes a feed unit, a first conveyance unit that conveys a print medium, and a second conveyance unit that conveys a print medium fed by the feed unit to the first conveyance unit, and is capable of correcting the skew of a print medium by causing the second conveyance unit to convey the print medium with its leading edge in abutment with the first conveyance unit. This conveyance device is configured to cause the feed unit to apply conveyance force to a print medium conveyed by the second conveyance unit, depending on the size of the print medium in the conveyance direction.

Abstract: To shorten the time to be taken to start executing a process to handle conveyance trouble of a print medium after the occurrence of the conveyance trouble, a printing apparatus of the present invention, upon sensing of conveyance trouble by a sensing unit during a printing operation, stops the conveyance of the print medium in the conveyance trouble and any print medium located upstream of it, and moves a printing head from a first position at which the printing head performs printing on a print medium to a second position to which the printing head is retreated from the first position, in parallel with a discharge operation for conveying, to a discharge unit, any print medium located downstream of the print medium in the conveyance trouble.

Abstract: An object of the present invention is to prevent the ends of print media fed continuously from colliding with each other. The present invention is a printing apparatus including: a printing unit configured to perform print operation; a detecting unit configured to detect conveyance abnormality; a conveying unit configured to convey a preceding print medium and a succeeding print medium; a conveying path having a first area including a curved portion at which a conveying direction of the print medium is curved and a second area upstream of the first area; and an opening unit capable of opening the first area of the conveying path, wherein, in a case where a leading edge of the succeeding print medium is located in the second area at the time of the detecting unit detecting conveyance abnormality of the preceding print medium, the conveying unit conveys the succeeding print medium so that the leading edge of the succeeding print medium reaches the first area.

Abstract: Provided is a printing apparatus that allows the user to easily perceive that the cover is unlocked. In the printing apparatus that includes: a cover unit configured to expose the conveying path, along which the printing medium is conveyed, to the outside when the cover unit is opened and that shields the conveying path when the cover unit is closed; and a locking configured to lock the cover unit to keep it closed, and that performs printing on the printing medium being conveyed along the conveying path, the cover unit is urged by an urging unit in the opening direction. In addition, when the locking unit unlocks the cover unit the cover unit is opened by a predetermined degree by the urging force of the urging unit.

Abstract: Provided are a sheet feeding device and a printing apparatus that are capable of estimating the number of remaining sheets without errors. The sheet feeding device includes: a loading member on which sheets are loaded; a lift unit that moves the loading member up and down; a position detection unit that detects a lift-up position to which the loading member moves up; a sheet detection unit that detects that a sheet at an uppermost position of the sheets loaded on the loading member has moved up to a feeding position by an upward movement of the loading member; a feeding roller that feeds a sheet at the feeding position; and an estimation unit that estimates the number of remaining sheets loaded on the loading member, based on a combination of detection results of the sheet detection unit and the position detection unit.

Abstract: A printing apparatus includes a first feeding part configured to feed print media from a first support part supporting the print media, a second feeding part configured to feed print media from a second support part supporting the print media, and a print head configured to print the print media fed by the first feeding part or the second feeding part. Further, the printing apparatus includes a first conveying path where the print media fed by the first feeding part are conveyed to the print head, and a second conveying path where the print media fed by the second feeding part are conveyed to the print head. At least a part of the second feeding part protrudes in a predetermined spatial area within the first conveying path during a feed operation of feeding print media from the second support part.

Abstract: A print media feeding apparatus includes: a stacking part configured to stack the print media; a feeding roller which is movable to an abutting position at which the feeding roller contacts the print media stacked on the stacking part and to a separated position separated from the print media stacked on the stacking part and configured to feed a print medium by rotating at the abutting position; a separation member configured to separate the print media; and a return unit configured to perform a return operation of returning the print medium other than a top print medium which the feeding roller abuts. The feeding roller moves to the separated position, after feeding the print medium from the stacking part. The return unit performs the return operation upon the feeding roller moving to the separated position. After the return operation, the feeding roller stops at the abutting position.

Abstract: For a printing apparatus, a first conveyance speed for a first printing medium is determined according to first print data to be printed on the first printing medium and a second conveyance speed for a second printing medium is determined according to second print data to be printed on the second printing medium that follows the first printing medium along a conveying path. In a case where the second conveyance speed is equal to the first conveyance speed, a conveyance operation of the second printing medium is started before the first printing medium is discharged from the conveying path. In a case where the second conveyance speed is different from the first conveyance speed, the conveyance operation of the second printing medium is started after the first printing medium is discharged from the conveying path.

Abstract: A printing apparatus capable of easily performing jam processing is provided. For this purpose, once support of a platen supporting member is released, then the platen will automatically turn to a predetermined angle.

Abstract: Disclosed is an oil-in-water type emulsion composition which has excellent temporal and temperature stability and exerts a good feeling of use; and a method of producing the same. Emulsification is carried out through a specific intermediate phase formed by mixing a surfactant capable of forming an L? phase, a surfactant capable of forming an H1 phase, and water. The intermediate phase preferably has an interfacial tension of 0.01 to 8 mN/m in terms of relative value with respect to polyperfluoromethylisopropyl ether. The oil-in-water type emulsion composition is produced by a production method that includes the step of sequentially adding an oil phase component and an aqueous phase component to the intermediate phase.

Abstract: A power transmission system transmits power from an internal combustion engine to a first and a second auxiliary device through an endless transmitting member. Prior to issuing of an engine start request, the first auxiliary device is actuated to move a tensioner pulley to a given position to increase the degree of tension of the endless transmitting member. The actuation of the first auxiliary device as an engine starter upon the issuing of the engine start request, therefore, enables a drive shaft of the engine to be rotated immediately within a required time to crank the engine. This achieves a quick start of the engine and results in a decrease in amount of time between the issuing of the engine start request and the actual start of the engine.

Abstract: A power transmission system transmits power from an internal combustion engine to a first and a second auxiliary device through an endless transmitting member. Prior to issuing of an engine start request, the first auxiliary device is actuated to move a tensioner pulley to a given position to increase the degree of tension of the endless transmitting member. The actuation of the first auxiliary device as an engine starter upon the issuing of the engine start request, therefore, enables a drive shaft of the engine to be rotated immediately within a required time to crank the engine. This achieves a quick start of the engine and results in a decrease in amount of time between the issuing of the engine start request and the actual start of the engine.

Abstract: A particulate concentration detector including a detection mechanism having a light emission unit and light reception unit. The particulate concentration detector detects the concentration of particulates suspended in a liquid from the light amount detected by the detection mechanism. The detection mechanism includes a first light guide, a second light guide, a liquid chamber, and a third light guide. The first light guide is arranged at a location facing toward a light emission surface of the light emission unit. The second light guide is arranged at a location facing toward a light reception surface of the light reception unit. The liquid chamber is formed between the first light guide and second light guide and allows the liquid to flow therein. The third light guide is arranged in an oscillatable manner in the liquid chamber so as to face toward the first light guide and the second light guide.

Abstract: A liquid fuel property detection apparatus includes a fuel passage, a light emitting device for emitting a light including a plurality of predetermined wavelengths toward the fuel in the passage, a light receiving device for receiving the light passing through the fuel, and a calculation unit for calculating the concentration of at least one of aroma, paraffin and olefin, which are hydrocarbon component components contained in the fuel. The calculation unit calculates the concentration of a specific component, which is one of aroma, paraffin and olefin, based on the reference transmittance of light in the specific component and the actual transmittance calculated from the amount of light emitted by the light emitting device and the amount of light received by the light receiving device with respect to each wavelength of the light.

Abstract: A particulate concentration detector including a detection mechanism having a light emission unit and light reception unit. The particulate concentration detector detects the concentration of particulates suspended in a liquid from the light amount detected by the detection mechanism. The detection mechanism includes a first light guide, a second light guide, a liquid chamber, and a third light guide. The first light guide is arranged at a location facing toward a light emission surface of the light emission unit. The second light guide is arranged at a location facing toward a light reception surface of the light reception unit. The liquid chamber is formed between the first light guide and second light guide and allows the liquid to flow therein. The third light guide is arranged in an oscillatable manner in the liquid chamber so as to face toward the first light guide and the second light guide.

Abstract: A liquid fuel property detection apparatus includes a fuel passage, a light emitting device for emitting a light including a plurality of predetermined wavelengths toward the fuel in the passage, a light receiving device for receiving the light passing through the fuel, and a calculation unit for calculating the concentration of at least one of aroma, paraffin and olefin, which are hydrocarbon component components contained in the fuel. The calculation unit calculates the concentration of a specific component, which is one of aroma, paraffin and olefin, based on the reference transmittance of light in the specific component and the actual transmittance calculated from the amount of light emitted by the light emitting device and the amount of light received by the light receiving device with respect to each wavelength of the light.