摘要:
A printhead capping assembly includes a cap holder, a printhead cap and a pin. The pin includes a head and a shaft. The shaft has a proximal end and a distal end, with the proximal end being adjacent to the head. The head has an outer periphery, and a bottom surface extending outwardly from the shaft toward the outer periphery. The pin has a channel including a first channel portion and a second channel portion. The first channel portion extends from the outer periphery of the head to the shaft. The first channel portion is connected to the second channel portion. The pin is inserted through the second hole and into the first hole to place the head in contact with the second base of the printhead cap. The second base of the printhead cap seals along the first channel portion to define a first vent path portion.
摘要:
A printhead capping assembly includes a cap holder and a printhead cap. The cap holder defines a cavity and a vent exit. The printhead cap has a base and a lip portion extending from the base. The lip portion defines an open interior region. The base is inserted into the cavity of the cap holder. The base includes a serpentine channel extending from the open interior region to the vent exit of the cap holder.
摘要:
A method of performing printhead maintenance firing in an ink jet printer that has a printhead carrier that carries an ink jet printhead, the ink jet printer having a waste ink receptacle, includes the steps of decelerating the printhead carrier from a first velocity after printing print data; and controlling a firing of the printhead during the decelerating in accordance with maintenance data so that ink droplets ejected from the printhead during the decelerating are received by the waste ink receptacle.
摘要:
A printhead maintenance cap includes a base and a wall portion. The wall portion is defined by a plurality of adjoining walls, and has a proximal end and a distal end, the plurality of adjoining walls defining an interior region. The proximal end is coupled to the base. A first lip extends from the distal end of the wall portion by a first extent in a direction non-orthogonal to the base, the first lip defining a first perimetrical sealing surface. A second lip extends from the distal end of the wall portion by a second extent, the second lip being spaced apart from the first lip, the second lip defining a second perimetrical sealing surface.
摘要:
A waste ink accumulation system in an ink jet printer includes a rotatable body having an ink-collecting surface and a plurality of projections extending from the ink-collecting surface. An actuating mechanism rotates the body.
摘要:
An ink tank for an inkjet printing device that includes a housing for containing ink, first and second chambers within the housing, and a partition separating the first and second chambers. The ink tank also includes a communication port connecting the first chamber in fluid communication with the second chamber, a tank outlet disposed within a wall of the housing, and a high capillary pressure producing member in direct communication with the outlet. The ink tank may be configured such that the ink may flow from the free ink space through the capillary pressure producing member and exit the outlet without having to travel through the communication port.
摘要:
An imaging apparatus includes a printhead carrier configured for reciprocating motion along a main scan axis. A printhead assembly is mounted to the printhead carrier. An ink tank is mounted to the printhead assembly. An ink tank interface is formed between the printhead assembly and the ink tank. The ink tank interface is formed by engagement of two angled porous surfaces oriented angularly with respect to a direction of ink flow.
摘要:
An ink mist controller for a maintenance station including spit louvers and a spit wheel which serve as accumulating surfaces. A flow of air directs ink mist through the louvers and around the spit wheel. Mist that is not attracted to a surface is carried to a manifold which filters, then exhausts, air to the environment, thereby preventing contamination of articles surrounding the printer. Color ink droplets are ejected onto the spit louvers. Low pressure is created between and below the louvers, which increases air and mist velocity over the entire spit zone. An unrestricted air curtain occurs on three sides of the color printhead to further control the location of mist deposit. Black ink is ejected onto the spit wheel which holds the mist deposit during evaporation. At defined intervals, the spit wheel rotates a fraction of a revolution. A scraper removes the non-volatile residue from the wheel during rotation. An air curtain is created on all four sides of the spit wheel to direct mist to this surface. As with the color ink, contaminated air is filtered prior to being exhausted to the environment.
摘要:
An ink jet printer has a maintenance station in which a movable sled starts from a known position due to a diagonally disposed return spring. A cam profile near the uppermost portion of vertical movement of a movable sled is produced in accordance with a quadratic equation. This quadratic designed equation profile reduces the force required to move the movable sled up the cam profile to its uppermost position. The return spring, which holds the movable sled in the known position by urging a front wall of the movable sled against a front wall of a support housing, also absorbs energy to decrease the noise level of the printer.
摘要:
A microfluid ejection system includes a fluid path having proximate and distal ends, the proximate end having an inlet to receive fluid from a fluid supply, a vacuum chamber for suctioning of air from both the proximate and distal ends of the fluid path, and a pre-ejection chamber disposed in the fluid path between a proximate end and a distal end. The pre-ejection chamber includes a ceiling inclined upward toward each of the proximate and distal ends from a low point to direct air toward either the proximate or distal end for suctioning from the pre-ejection chamber. The microfluid system further includes a first and second air chambers disposed respectively at the proximate and distal ends of the fluid path to receive and direct air to the vacuum chamber.