摘要:
Apparatus for color printing on a re-inkable belt, the re-inkable belt being moveable along an endless path and trained about a transport roller and including an ink transfer layer where an ink can be transferred to a moveable receiver and the moveable receiver moves into ink transfer relationship with the re-inkable belt at a nip position for transferring ink imagewise from the re-inkable belt to the receiver. The depleted ink is replenished and the re-inkable belt is arranged so that ink will be diffused into the ink transfer surface, and tension is adjustedly applied at two spaced locations to the transport roller and including two spaced steering actuators which, when actuated, apply tension to opposite positions on the transport roller, a sensor for determining the position of the re-inkable belt, and a computer coupled to the sensor for selectively actuating the steering actuators so as to apply tension to the transport roller which compensates for lateral distortion of the re-inkable belt.
摘要:
Apparatus for color printing on a moveable receiver includes a re-inkable belt including an ink transfer layer where an ink can be transferred; a structure for causing the moveable receiver to move into proximate contact with the re-inkable belt at a nip position for transferring ink imagewise to the moveable receiver; and an interface capillary spaced from the re-inkable belt and for receiving ink and including pumping structure operating on the ink in the interface capillary for forming a meniscus in such space which engages the re-inkable belt so that ink will be diffused into the ink transfer surface. The apparatus further forms a meniscus when the re-inkable belt passes by the interface capillary to cause ink to diffuse into the ink transfer layer when the ink transfer layer is saturated with ink.
摘要:
A microfluidic printing apparatus including at least one ink reservoir; a structure defining a plurality of chambers arranged so that the chambers form an array with each chamber being arranged to form an ink pixel; a plurality of microchannels connecting the reservoir to a chamber; a plurality of microfluidic pumps each being associated with a single microchannel for supplying ink from an ink reservoir through a microchannel for delivery to a particular chamber; and a structure for controlling the starting times of the microfluidic pumps and the time of separation of the receiver from the ink chambers so that the correct amount of ink is delivered from each chamber to each pixel on the receiver.
摘要:
A microfluidic printing apparatus comprising at least one ink reservoir; a structure defining a plurality of chambers arranged so that the chambers form an array with each chamber being arranged to form an ink pixel; a plurality of microchannels connecting the reservoir to a chamber; and a plurality of microfluidic pumps each being associated with a single microchannel for supplying ink from an ink reservoir through a microchannel for delivery to a particular chamber. The apparatus provides relative movement between the microchannels and the structure so that the arrays can be effective in two positions; a blocking position for preventing the flow of ink from the microchannel to the chamber, and a printing position for aligning the chambers with the microchannels for permitting the flow of ink from microchannels into associated chambers to regulate the ink flow into the chambers. The apparatus further controls the microfluidic pumps and causes arrays to be in printing position when the microfluidic pumps supply ink through the microchannels to the chambers so that the correct amount of ink is delivered into each chamber.
摘要:
Apparatus for replenishing dye from a re-inkable belt after such apparatus has transferred dye to form an image in response to image signals on a moveable receiver includes a re-inkable belt moveable along an endless path and having a plurality of separated ink patches each one being adapted to receive and transfer a different colorant and a re-inking turret having a plurality of rollers each one of has different transferable colorant and corresponds to a particular ink patch. The receiver is moved into proximate contact with the ink patches at a nip position. The apparatus responds to the image signals for applying energy to the re-inkable belt at the nip position to imagewise transfer colorant from the re-inkable belt to the receiver depleting colorant in an imagewise pattern and imagewise replenishment of depleted colorant on the ink patches of the ink belt to transfer colorant into the ink transfer surface includes a structure responsive to the image signals and the position of the re-inkable belt to cause particular rollers to engage corresponding moving ink patches at an ink transfer position for transferring ink to such patches such that the transfer of colorant from each roller to the corresponding patches is in synchronization with the movement of the re-inkable belt.
摘要:
A microfluidic printing apparatus for printing ink pixels on a receiver includes at least one ink reservoir and plurality of microchannels each connected to the ink reservoir. The apparatus further includes a plurality of chambers associated with at least one microchannel which includes a resilient material which, in an ink delivery position, permits ink to be delivered from the microchannel to a chamber and in an ink printing position blocks the flow of ink from the microchannel to the chamber and reduces the size of the chamber to expel ink for printing on the receiver.
摘要:
Apparatus having an array of print heads for transmitting energy to a colorant donor element to cause colorant to transfer to produce color filter array patterns in an image-receiving layer of a color filter array includes a structure for locating the colorant donor element and the image-receiving layer a precise sublimation gap G from the image-receiving layer surface; and for maintaining this sublimation gap G to compensate for dimensional variations in the image-receiving layer.
摘要:
Apparatus for printing on a moveable receiver images corresponding to a digital image includes a re-inkable belt which includes a polymer support layer and an ink transfer layer having a plurality of colored patches provided over the polymer support layer wherein ink can be transferred to and from the ink transfer layer, the polymer support layer including heating elements disposed in the colored patches in the re-inkable belt which, when a potential is applied to them, heats their corresponding patch the ink transferable layer to facilitate ink transfer. The apparatus selectively applies potential to the heating elements in the re-inkable belt at an image transfer system and causes the moveable receiver to move into proximate contact with the re-inkable belt at an image transfer position. The apparatus further applies energy to selected heating elements to heat an appropriate patch of the re-inkable belt at the image transfer position to facilitate ink transfer and responsive to the digital image to imagewise transfer ink from the re-inkable belt to the receiver.
摘要:
A microfluidic display apparatus responsive to an image file for displaying a plurality of colored pixel, having at least one color for each pixel includes at least one fluid display chamber for displaying a color; a microchannel connected to the display chamber and including a first colored fluid which, when such fluid is moved to the display chamber, displays the first color as a pixel and a second colored fluid which, when moved to the display chamber, displays the second color as a pixel; and microfluidic pumps for each microchannel. A computer controls the microfluidic pumps in response to a particular pixel of the image file for selectively controlling the flow of fluid to the chamber for selectively displaying either the first or second colors or a fraction of each color thereof.
摘要:
Printing apparatus for radiation thermal transfer of colorant from a donor to a receiver, including a flash tube for emitting high intensity radiation; a polarizer for receiving high intensity radiation from the flash tube and polarizing such radiation; and liquid crystal cells disposed to receive polarized radiation from the polarizer. Electrodes modulate the liquid crystal cells so that they change the polarization of the radiation passing through them. A second polarizer receives radiation from the liquid crystal cells and is arranged to pass different intensities of radiation depending on their polarization. The colorant donor and the receiver are positioned in colorant transfer relationship with the second polarizer at a colorant transfer position so that radiation which passes through the second polarizer illuminates the colorant donor so that colorant is transferred to the receiver.