摘要:
An ink-jet printer having improved print quality and full color printing capability on plain paper media. To accommodate placement of both input and output media trays on the same side of the printer housing for operator convenience, a paper path with a direction reversal is employed. A paper preconditioning preheater with a curved surface and a multi-purpose paper path component accomplish the direction reversal. The paper path component is a unitary component which employs curved ribs to reduce the contact area with the medium and reduce static charge buildup, and has slots formed therein to release water vapor given off by the medium when preheated. The component permits paper to be loaded manually via a second manual feed path, through a housing, and upon opening a rear access door in the housing, such component is easily removable to facilitate operator access to the paper path and electrical components.
摘要:
A printer architecture structure in which a flexible external case is used to compress and sandwich internal printer structure comprised of a rigid metal base and printer chassis structure by nominally compressing resilient pads between the chassis structure and case top and side walls. Additional resilient pads between the base and chassis structure are ordinarily nominally uncompressed by the flexible case except during application of shock loads during shipment or vibrations during printer operation. The construction minimizes transmission of externally applied shock loads through the internal components of the system and assists in containing vibrations and noise generated during printer operation interiorly of the case. The relatively rigid base comprises a metal enclosure for RF shielding of the electronic components.
摘要:
A portable ice storage and dispensing device has a portable container for housing the ice to be dispensed. An opening is formed on the portable insulated container. The opening is used for dispensing the ice out of the portable insulated container. An ice dispenser is located internal to the portable insulated container and extends partially out of the portable insulated container. The ice dispenser is used for moving and directing the ice out of the opening.
摘要:
An ink-jet printer having improved print quality and full color printing capability on plain paper media. To accommodate placement of both input and output media trays on the same side of the printer housing for operator convenience, a paper path with a direction reversal is employed. A low cost radiant print heater with a reflector cavity heats the medium at the print area to increase the ink carrier evaporation rate. The printer provides improved medium control at the print area through an arrangement of small diameter drive and tension shafts and shortened handoff distance between the rollers. The heater is disposed between the drive and tension rollers. To minimize the handoff distance, portions of the drive rollers extend into the reflector cavity. The resulting media advancement mechanism has low inertia, with improved media positioning accuracy.
摘要:
Two printing-medium guide systems restrain the medium. One is in an area upstream (along the direction of medium advance) from the pen, and extending laterally across the width of the medium except in one or more regions laterally near the engagement of a print-medium advancing device. The other guide system is disposed laterally from the pen, and extends laterally across the medium only in one or more regions laterally near the engagement of the advancing device. Preferably these "one or more regions" are only near the lateral edges of the medium--so that (1) the first guide system restrains the medium over an area that stops short (ideally about 11/2 centimeter short) of the lateral edges; and (2) the second guide system is bifurcated, disposed laterally in two directions from the pen, and restrains the medium across only the lateral edges of the medium (most preferably in a strip whose width is a few millimeters, ideally 3 mm). Preferably a human-actuable control selects a print-medium width, and shifts at least one bifurcation of the second guide system. A tensioning system, longitudinally beyond the marking head from the medium advancing device, and generally aligned laterally with that device, tensions the medium away from the advancing device to hold the medium taut at the pen. Preferably the advancing and tensioning devices are very closely spaced upstream and downstream, respectively, from the pen zone. When tensioned, the medium moves a normal distance through the apparatus at each operation of the advancing device; but after a trailing edge of the medium passes the advancing device (so that the medium is advanced only by the tensioner and no longer tensioned), the advance distance is decreased (preferably by about half).
摘要:
An ink-jet printer having improved print quality and full color printing capability on plain paper media. To accommodate placement of both input and output media trays on the same side of the printer housing for operator convenience, a paper path with a direction reversal is employed. A paper preconditioning preheater with a curved surface and a multi-purpose paper path component accomplish the direction reversal. The printer further includes a manual feed path for guiding a manually fed sheet or envelope from a manual feed inlet slot at the top, rear corner of the printer to a path converging location with the primary feed path. The preheater includes a heating portion disposed along the primary path between the path converging location and the-print area, to provide the capability of preheating media fed either from the input tray or the manual feed slot.
摘要:
A piezoelectrically driven ink jet print head for ejecting ink droplets from an ink supply within the print head through a discharge channel onto a writing surface includes a shutter mechanism that may be electromechanically controlled during selected periods of time to seal the ink supply within the print head from the atmosphere and from a high speed laminar flow of air used to accelerate ejected ink droplets.