43results about How to "No ejection error" patented technology

The impact accuracy of ejected droplets, the quality of printed images, and print speed can be improved in a print head having an ink channel for which the width thereof in a direction orthogonal to an ink supply direction in which ink is supplied from an ink supply port to a pressure chamber is smaller than that of a pressure chamber. In the print head, the center of a heater along the ink supply direction is offset from the center of the pressure chamber along the ink supply direction, toward the side of the pressure chamber far from the ink supply port in the ink supply direction.

An improved photoimaged nozzle plate for a micro-fluid ejection head, a micro-fluid ejection head containing the nozzle plate, and methods for making a micro-fluid ejection head. The improved nozzle plate is provided by a photoresist nozzle plate layer applied to a thick film layer on a semiconductor substrate containing fluid ejector actuators. The photoresist nozzle plate layer has a plurality of nozzle holes therein. Each of the nozzle holes are formed in the nozzle plate layer from an exit surface of the nozzle plate layer to an entrance surface of the nozzle plate layer. Each of the nozzle holes has a reentrant hole profile with a wall angle greater than about 4° up to about 30° measured from an axis orthogonal to a plane defined by the exit surface of the nozzle plate layer.

A method of manufacturing a display device includes forming a thin film transistor on an insulating substrate, forming an electrode electrically connected to the thin film transistor, forming a wall surrounding the electrode, ejecting ink comprising an organic material and a first solvent on the electrode, and supplying a second solvent to the ink. Thus, an organic layer of uniform quality is formed in the display device formed by the method.

The injector for injecting a flexible intraocular implant comprises: a channel (14) having a main portion (18, 30) of diameter D1, an open end portion (34) of diameter D2 (with D2<D1), and a transition portion (32); a rigid piston (16) movable along the channel to push the folded implant in the channel, and a substantially circularly symmetrical thrust part (40) made of a material that is hydrophobic and elastically deformable, said thrust part having an outside diameter D3 not less than D1, said part (40) being placed in said channel between the folded implant (1) and the end of said piston (16) without being mechanically connected to said piston. When the implant is pushed in the channel by the piston, said thrust part can deform elastically to penetrate in part into the end portion of the channel, thereby expelling the implant from the channel, and remaining jammed in said end portion of the channel when the piston is withdrawn.

The invention provides methods and devices for preparing frozen vitrified samples for transmission electron microscopy. By reducing the volume of sample from microliter scale to picoliter scale, the requirement for blotting of excess fluid is minimized or eliminated.

An elastic tubular sleeve (8) in engagement with a tubular supporting element (9) is set to a substantially coaxial position around one of the electric cables (2a, 2b). Subsequently, the conductors (3a, 3b) of the cables (2a, 2b) are mutually connected to obtain a splicing region between said cables. The tubular sleeve (8) in engagement with the supporting element (9) is positioned around the splicing region. By use of a suitable apparatus (100, 101, 102) previously engaged on the sleeve (8) and the supporting element (9), the supporting element (9) is drawn out of the tubular sleeve (8) so as to cause a radial elastic shrinkage of the tubular sleeve (8) capable of inducing an axial ejection thrust on the supporting element (9) itself. Counter devices (12) associated with the apparatus (100, 101, 102) counteract the axial ejection thrust so as to allow the speed at which the supporting element (9) is drawn out of the sleeve (8) itself to be controlled.

An apparatus and method for controlling a urea injection amount of a vehicle provides precision improvement of urea injection by determining a urea injection amount according to a collection amount of soot that is collected at an SCR integral diesel particulate filter and an accumulation amount of ash. The method includes: detecting a collection amount of soot that is collected at the SCR integral diesel particulate filter and calculating an effective volume of the SCR integral diesel particulate filter according to enlargement of an accumulation amount of ash; calculating an NH3 target storage amount by reflecting the soot collection amount and an effective volume decrement according to ash accumulation; and providing urea injection by determining an NH3 storage control amount and determining a urea necessary injection amount according to the NH3 target storage amount.

An ink jet printing apparatus having excellent throughput can continue a printing operation without interruption if one or more line heads falls into an unprintable state when the apparatus is printing images of the same color using a plurality of line heads. For this purpose, image data for images of the same color is divided and the divided image data is supplied to such a line head of the plurality of line heads intended to form images of the same color that is capable of ejecting ink properly, so that the ink ejectable line head performs the printing operation according to the supplied image data.

A method of splicing first and second cables may include providing an elastic tubular sleeve, supported by at least one supporting element, in a radially expanded condition; arranging the sleeve in the radially expanded condition around one cable; connecting the cables to obtain a splicing region; positioning the sleeve in the radially expanded condition around the splicing region; axially moving the at least one supporting element relative to the sleeve to cause radial elastic shrinkage of the sleeve capable of inducing axial ejection thrust on the at least one supporting element; counteracting the axial ejection thrust; and adjusting axial movement speed of the at least one supporting element to adapt the axial movement speed to a speed of the elastic shrinkage. Counteracting the axial ejection thrust may include applying axial reaction force to one end of the at least one supporting element axially projecting from the sleeve.

The invention provides systems or apparatuses for dispensing aqueous materials for electron microscopy (EM). The systems allow dispensing of aqueous materials onto an EM sample grid at individual specimen locations in an ordered array of specimen locations, with each individual specimen location in the array of locations. The systems contain a holder for reversibly receiving an EM sample grid, and a dispenser containing one or more dispensing elements that are configured to discretely dispense one or more aqueous solutions from the dispensing elements onto a plurality of individual specimen locations. The dispenser is able to provide an ordered array of discrete specimen locations discontinuous with one another. In the systems, at least one dispensing element is configured to dispense picoliter volumes of one or more of the aqueous solutions. Additionally, the systems contain a drive mechanism to position the EM sample grid relative to the one or more dispensing elements, as well as one or more reservoirs operably linked to the dispenser for holding the one or more aqueous solutions to be discretely dispensed onto each individual specimen location in the array of locations.

A method of continuously mounting clips to first and second rods, which are abutted and crossed with each other, includes the steps of a) providing a clip dispensing gun; b) providing clips each having a first rod clipping portion fittable with the first rod and a second rod clipping portion fittable with the second rod; c) loading clips into a clip guiding portion of the clip dispensing gun; d) pushing one of the clips by a clip feeding member of the clip dispensing gun to advance one clip to a ready-to-be-fired position, and e) ejecting the clip in the ready-to-be-fired position out of the clip dispensing gun by using a striker of the clip dispensing gun for enabling first and second rod clipping portions of the ejected clip to be fitted with the first and second rods respectively.

The injector for injecting a flexible intraocular implant comprises: a channel having a main portion of diameter D1, an open end portion of diameter D2 (with D2<D1), and a transition portion; a rigid piston movable along the channel to push the folded implant in the channel, and a substantially circularly symmetrical thrust part made of a material that is hydrophobic and elastically deformable, said thrust part having an outside diameter D3 not less than D1, said part being placed in said channel between the folded implant and the end of said piston without being mechanically connected to said piston. When the implant is pushed in the channel by the piston, said thrust part can deform elastically to penetrate in part into the end portion of the channel, thereby expelling the implant from the channel, and remaining jammed in said end portion of the channel when the piston is withdrawn.

The present invention discloses a multi-channeled grading machine with trajectory tracking sensor network for grading objects into multiple grades in a single pass based on external characteristics viz. size, shape, color, texture, surface properties or any other possible external characteristics by continuously tracking the trajectory of objects. The grading machine comprises of hopper; at least one feeding unit; multiple optics units multiple conduits; multiple sensor networks in multiple conduits; at least one master controller; at least one ejector unit comprising of arrays of single-angled or multiple angle ejectors in each conduit; multiple vacuum creators placed respectively opposite to each ejector; multiple collecting chutes; and multiple collecting locations. The grading machine is extremely simple, accurate, and automated, power-efficient and cost-effective.