Abstract: A segmented flexible heater disposed adjacently to a paper path in a printing machine for heating a recording medium before printing and during printing. The segmented flexible heater includes a curved first portion for preheating the paper and a substantially planar second portion for heating the paper in a print zone wherein the second portion generates heat energy having a temperature greater than the heat energy generated by the first portion. The first portion includes apertures for accommodating drive rollers for moving the recording medium into the print zone area heated by the second portion. The apertures in the flexible heater provide for continuous heating of the recording medium before and during heating. The second portion is preferably at least two printing swaths wide to prevent thermal shock to the portion of the printing medium being printed on.

Abstract: An ink jet apparatus is provided for printing on both surfaces or one surface of a sheet-shaped printing medium by using an ink jet head including a plurality of ink ejecting ports facing the printing medium and energy generating elements.

Abstract: Individual printheads are joined together in a manner to provide improved alignment and registration. The multiple printhead assembly is then installed and removed from the printer as a single unit. According to a preferred method of forming the assembly, individual printheads are temporarily mounted on a holddown plate. The location and position of the printheads is monitored and a fast-cure adhesive used to monolithically join the individual printheads together as a unitary assembly. Once the adhesive is cured, the temporary securing of the individual printheads is removed and the entire assembly removed as a single unit from the holddown plate.

Abstract: This disclosure describes an improved ink seal between a print cartridge body and an inkjet printhead. In a preferred embodiment, a nozzle member containing an array of orifices has a substrate, having heater elements formed thereon, affixed to a back surface of the nozzle member. Each orifice in the nozzle member is associated with a single heating element formed on the substrate. The back surface of the nozzle member extends beyond the outer edges of the substrate. Ink is supplied from an ink reservoir to the orifices by a fluid channel within a barrier layer between the nozzle member and the substrate. The fluid channel in the barrier layer may receive ink fl owing around two or more outer edges of the substrate or may receive ink which flows through a hole in the center of the substrate.

Abstract: Disclosed herein is an ink-jet recording process which comprises using at least color inks of yellow, magenta and cyan colors and a black ink, and ejecting out the inks on a recording material to record a color image on the recording material, wherein the color inks contain a penetrability-imparting surfactant and/or a penetrable solvent, and the black ink contains a pigment as a coloring material. An ink set and an instrument for use in such a process are also disclosed.

Abstract: An ink jet recording medium has a recording portion prepared by forming a transparent ink absorption layer as an upper layer of an opaque base, and a to-be-detected portion which is at least transparent and corresponds with the detection position of detection means. Even an opaque sheet can be recorded in the same mode as a transparent OHP sheet.

Abstract: Disclosed herein is recording paper suitable for use in recording making use of a water-based recording liquid containing a dye which varies from water-soluble to water-insoluble according to the change of pH, wherein the recording paper is neutral or alkaline, and the surface pH of the paper is adjusted to a value not higher than the pH at which the dye turns water-insoluble.

Abstract: An information processing apparatus apparatus comprising a first and second housings fold-up on each other, and provided with a means for protecting the recording head or carriage from shock due to the incidental falling or collision during storage or conveyance, thereby preventing rattles caused by vibration, and also preventing incorrectness of standby position or erroneous control of movement upon being reused.

Abstract: Wetting an absorber material in the bottom of a spittoon in a service station employed in a thermal ink-jet device, such as a facsimile machine, prevents formation of stalagmites of ink and ensures trouble-free operation of the service station. The absorber, which comprises a material having a high capacity for absorbing the liquid ink, is wetted with a sufficient quantity of a liquid having both a low vapor pressure and capable of wetting the absorber material. Such a liquid comprises a hydrocarbon material, such as a paraffin oil.

Abstract: A process for the preparation of toner compositions comprising: forming a mixture comprised of at least one free radical reactive monomer, a colorant, a stabilizer compound containing a stable free radical reactive group, and a liquid vehicle; and heating the mixture from about 75.degree. to about 200.degree. C. to effect polymerization of said monomer, wherein there results stabilized core resin particles containing said colorant and wherein said stabilized core particles are stabilized by said stable free radical reactive stabilizer compounds being bonded directly to the core particles.

Abstract: The present invention has as its object to detect the termination of ink reliably and highly accurately in an ink jet recording apparatus. An ink cartridge 2 has an opening 5 for connection to a recording head 1, and is comprised of a negative pressure generating member containing portion 14 containing a negative pressure generating member 13 and having an atmosphere communicating port 10, and an ink containing portion 16 which is adjacent to the negative pressure generating member containing portion 14 and communicates therewith at the bottom 11 of the ink cartridge. Ink detecting means 3 is provided below the ink containing portion 16. When the detecting means 3 detects a reduction in the remain in the ink containing portion 16, ink remains only in the negative pressure generating member containing portion 14 and the remainder can be substantially estimated.

Abstract: A method of recording an image on a recording sheet is disclosed which comprises the step of jetting an ink from a nozzle onto the recording sheet, wherein the ink comprises a dye capable of co-ordinate bonding with a metal ion in two or more coordination positions and the recording sheet comprises a compound containing a metal ion which is capable of co-ordinate bonding with the dye in two or more coordination positions to record the image on a recording sheet.

Abstract: An ink jet recording head manufacturing method for manufacturing ink jet recording head having an ink passage, wherein a droplet of ink is ejected through the passage from an ink ejection outlet at an end of a passage onto a recording material. Ions are injected into a surface having the ink ejection outlet to change a surface property of the surface.

Abstract: Disclosed is a method to optimize the operation of an ink-jet printer provided with a circuit to collect the ink not used for the printing, comprising a gutter connected to an imperviously sealed ink tank by a conduit placed in a state of depression by a constant flow pump checking the flow rate of ink in the conduit by the measurement of the pressure in the ink tank and controlling the operation of the pump either at its minimum suction rate compatible with efficient collection of the ink or at its maximum suction rate during anomalies of collection.

Abstract: An ink jet printhead has improved resistance to the corrosive effects of ink by coating ink sensitive areas with a photo-imageable benzocyclobutene (BCB) polymer. The BCB can be patterned so as to provide a protective coating over selected areas while leaving other areas uncoated. In one described embodiment, a thermal ink jet printer is formed by bonding together a channel plate and a heater plate. Resistors and electrical connections are formed in the surface of the heater plate. A BCB layer is formed so as to overlie the heater plate to protect the electrical elements while providing pit structure for the heater and for ink flow bypass.

Abstract: Provided is an ink jet printing method for printing inks of at least two colors on a cloth by an ink jet system which comprises at least three steps of:(a) the step of printing, on the cloth, the inks of at least two colors of a black ink and an another ink of at least one color selected from the group consisting of yellow, orange, red, magenta, blue and cyan so that the inks may at least partially overlap,(b) the step of thermally treating the cloth printed with the inks, and(c) the step of washing the thermally treated cloth,said cloth comprising a polyamide fiber,said black ink containing, as a dyestuff, at least one selected from the group consisting ofC. I. Acid Black 24, 26, 52, 52:1, 109, 155, 172 and 222,C. I. Direct Black 19, 62 and 113, and a dyestuff represented by the formula (1) ##STR1## wherein M is an alkaline metal, ammonium or an amine, or the formula (2) ##STR2## wherein X is a hydrogen atom, a lower alkyl group or a phenyl group which may be substituted by an SO.sub.

Abstract: A recording apparatus includes a mounting unit for mounting a discharged sheet material, elastic guide members capable of being curved/restored in order to receive end portions of the sheet material in the direction of the width being discharged onto the mounting unit, and pressing members for providing/releasing a pressing force for the elastic guide members. The sheet material being discharged onto the mounting unit is held by curved portions of the elastic guide members when the elastic guide members are curved, and the holding of the sheet material is released when the elastic guide members return to their restored state so that the sheet material drops into the mounting unit.

Abstract: Indicia is affixed to an enamel band on a substrate. An ink suitable for use in known ink jet printers containing inorganic pigments and no frits is applied in a predetermined, easily changeable, pattern to the surface of an enamel band found on a substrate such as plastic or glass. Subsequently the substrate having the enamel band and ink thereon may be heated to a temperature sufficient to cause the frits in the enamel band to adhere to the inorganic pigment in the ink to form permanent opaque indicia on the enamel band in the form of a separate and distinct layer.

Abstract: In a jet recording method, a normally solid recording material is placed in a heat-melted state in a path defined by a nozzle leading to an ejection outlet and, in a recording step, is imparted with a thermal energy corresponding to a recording signal to generate a bubble, thus ejecting a droplet of the recording material out of the ejection outlet. As an improvement, prior to the recording step, the recording material is sucked or pressurized to be ejected out of the ejection outlet and, in the recording step, the bubble is communicated with ambience. As a result, the recording is started or resumed without discharge failure even after a long time of non-use or standing state.

Abstract: A dot matrix ink or bubble jet-type desktop printer is adapted to be connected to a personal computer by an RS-232 serial connector, and is able to simultaneously print on both sides of a sheet of paper. The double-sided printer includes a platen-less paper transport system which secures a sheet of paper to be printed in a substantially rigid plane with both sides of the paper exposed to printing. The paper transport system includes pick-up pinch roller assemblies arranged in contacting, opposed, counter rotating fashion, and tension roller assemblies, spaced-apart from the pinch roller assemblies which cooperate to define a substantially rigid plane between the sets of roller assemblies in which the paper is tensioned. Two print head carriage assemblies, each including a print head, are provided, in mirror-image relationship, on either side of the paper plane.