Abstract: A printer containing at least one support for a roll of printing paper web, a printer station including a print head, means for conveying the printing paper web from the roll to the printer station, driving means adapted for selectively driving the conveying means in a downstream conveying direction or an upstream conveying direction, a cutting station downstream of the printer station for cutting the printing paper web, means for detecting the passage of an end location on the end portion of the printing paper supplied from the roll and conveyed in the downstream direction to the printer station, controlling means for controlling the print head including means for entering and storing a printing job, the controlling means further including means for receiving a signal from the detecting means indicating the passage of the end location of the roll of the paper web and then to interrupt the printing job and to deactivate the driving means so as to hold the printed paper web upstream of the cutting means for a

Abstract: A printhead assembly is provided, comprising at least one printhead module comprising at least two printhead integrated circuits, each of which has nozzles formed therein for delivering printing fluid onto the surface of print media, and a support member supporting and carrying the printing fluid for the at least two printhead integrated circuits, and a casing in which the at least one printhead module is removably mounted by having a first side thereof slidably received in a longitudinally extending groove of the casing and a second side thereof clamped to the casing by a clamping arrangement.

Abstract: A print engine controller for an inkjet printhead assembly includes a data bus. A data interface and a memory interface are connected to the data bus for loading compressed page data into the data bus. Contone expansion circuitry is connected to the data bus to expand a contone layer of the compressed page data. Bi-level expansion circuitry is connected to the data bus to expand a bi-level layer of the compressed page data. Tag encoder circuitry is connected to the data bus to establish infrared tag data according to protocols associated with that page. Halftoner and compositor circuitry is connected to the expansion and tag encoder circuitry to halftone and composite the expanded contone and bi-level layers and the infrared tags. Printhead interface circuitry is connected to the halftoner and compositor circuitry and is configured to receive the halftoned and composited data and to generate print data suitable for printing by a micro-electromechanical printhead.

Abstract: A method of printing cartridge maintenance including determining remaining useful life of a printing cartridge, and refilling at least a portion of the printing cartridge if the remaining useful life is above a predetermined threshold.

Abstract: A system for adjusting the angular orientation in a first plane of a plurality of print head cartridges or groups of cartridges arranged adjacent to each other on a carriage which can be reciprocated in a Y-direction, wherein each of said cartridges or group of cartridges is mounted on said carriage to be tiltable in said first vertical plane, wherein for each of said cartridges or groups of cartridges said carriage is provided with first adjustors for adjusting the angular orientation of the respective cartridge or group of cartridges, said system being provided with second adjustors arranged remote from said carriage for adjusting said angular orientation of said cartridge or group of cartridges, said second adjustors selectively, operatively communicating with said first adjustors of a selected one of said cartridges or group of cartridges.

Abstract: A method of determining and applying a protective ink amount to be printed in addition to a plurality of colored ink amounts to make colored pixels in an image including determining a first protective ink amount responsive to the colored ink amounts, determining multitoned colored ink amounts using a multitone processor responsive to the colored ink amounts, and determining a second protective ink amount responsive to the multitoned colored ink amounts. The method also includes determining the protective ink amount responsive to the first protective ink amount and the second protective ink amount to provide adequate durability for the image, and applying using an inkjet printer the colored ink amounts and the protective ink amount to make the colored image pixels.

Abstract: A droplet discharging method for discharging a liquid inside a pressure chamber as a droplet from a nozzle, by applying a drive waveform to an actuator for causing change in volume of the pressure chamber filled with the liquid, is characterized by that: by taking volume of the pressure chamber as V, taking cross-sectional surface area of the nozzle as A, taking a length of the nozzle as l0, taking a density of the liquid to be discharged as ?, taking viscosity coefficient of the liquid to be discharged as ?, and taking rate of transmission of a pressure wave transmitted through the liquid inside the pressure chamber as c, these respective factors are established in such a manner that a condition expressed by the following inequality expression is satisfied: c 2 V < 16 ? ? 2 · µ 2 · l 0 A 3 · ? 2 .

Abstract: A cap moving mechanism for moving a cap for sealing a liquid ejecting head for ejecting liquid to a target, includes a pushing-up part for moving the cap upwards or downwards by rotating, a cam shaft provided integrally with the pushing-up part as a rotating shaft of the pushing-up part, a cam shaft gear including a drive region, which rotates integrally with the cam shaft taken as a rotating shaft, whereby a driving force of a motor for driving the cam shaft is transmitted, and a non-drive region whereby the driving force of the motor is not transmitted and a driving force transmission gear for transmitting the driving force of the motor to the cam shaft gear in order that the cap can be moved downwards from a state in which the cap has been completely moved upwards, after the motor rotates by a predetermined amount from when the cap has been completely moved upwards, and transmitting the driving force of the motor to the cam shaft gear in order that the cap can be moved upwards from a state in which the cap

Abstract: In a discharging state determination method and apparatus for detecting discharging state from each nozzle of a printhead which discharges droplets, each of the nozzles of the printhead is driven, and the discharging state from each driven nozzle is detected and stored as a physical amount in a memory. A threshold for determining whether the discharging state of each nozzle of the printhead is normal or abnormal is calculated by using the physical amount corresponding to each nozzle and stored in the memory. The physical amount corresponding to each nozzle is evaluated on the basis of the threshold, and it is determined whether the droplet discharging state of each nozzle is normal or abnormal.

Abstract: Systems and methods for identifying a device using a programmable memory circuit having at least one partially blown fuse are described herein. A fluid ejection apparatus includes an electronic controller. The electronic controller is configured to determine a resistance associated with a partially blown fuse in a programmable memory circuit and to determine an identifier based on the resistance.

Abstract: A printmode for an inkjet printer including a plurality of print nozzles and an edge guide projecting into a printzone into which at least one of the plurality of print nozzles may be transported for deposition of a fluid onto a print media, the printmode including a printmask defining a print disable zone corresponding to a pre-selected area of the printzone that includes an area of the edge guide that projects into the printzone.

Abstract: A printed circuit board is provided comprising an integrally formed spring portion. This printhead circuit board can be used in as a connector arrangement in a circuit assembly comprising a plurality of other printed circuit boards arranged in a linearly aligned manner. Further, a printhead assembly is provided comprising at least one printhead module comprising at least two printhead integrated circuits, each of which has nozzles formed therein for delivering printing fluid onto the surface of print media, a support member supporting and carrying the printing fluid, and an electrical connector for connecting electrical signals to the printhead integrated circuits, and comprising the circuit assembly electrically connected to the printhead integrated circuits via the electrical connector. The printhead assembly further comprises a casing comprising a support frame on which the printhead module and the circuit assembly are removably mounted.

Abstract: An object of this invention is to provide an ink jet printing apparatus that can detect a state causing a printing operation failure without adding a sensor and also enhance the ease of handling on the part of the user while keeping an apparatus cost from rising. For this purpose, in a serial type ink jet printing apparatus, a travel range in which the print head can be moved is detected and it is decided whether the detected travel range is a proper travel range. When, for example, the travel range is determined to be less than a preset range, it is decided that there is an obstacle in a path of the print head and a decision result is displayed. When the travel range is determined to be a certain range, it is decided that the ink tank is not properly mounted on the print head and the corresponding indication is made.

Abstract: An ink-jet head control circuit is provided that includes a latch circuit which respectively stores a first data block and a second data block following the first data block, for ink liquid drop discharge, and a data determination unit which calculates a state transition data block based on the stored first and second data blocks. If the first data block is the same as the second data block, the data determination unit outputs a state transition data block having a first value (Low), and if the first data block is different from the second data block, the data determination unit outputs a state transition data block having a second value (High).

Abstract: A printhead assembly is provided, comprising at least one printhead module comprising at least two printhead integrated circuits, each of which has nozzles formed therein for delivering printing fluid onto the surface of print media, and a support member supporting and carrying the printing fluid for the at least two printhead integrated circuits, a casing in which the at least one printhead module is removably mounted, and a capping member capping a terminal end of the support member of the at least one printhead module.

Abstract: A method of assembling a printhead module for a printhead assembly is provided, the method comprising mounting at least two printhead integrated circuits to an upper surface of at least one fluid distribution member, the at least two printhead integrated circuits each having nozzles formed therein for printing fluid onto the surface of print media, and fixedly attaching with an adhesive material a lower surface of the at least one fluid distribution member onto an upper surface of a support member having fluid delivery channels for the nozzles of the at least two printhead integrated circuits, so as to form a unitary arrangement of the support member, the at least two printhead integrated circuits and the at least one fluid distribution member.

Abstract: A printhead assembly is provided comprising at least one printhead module comprising at least two printhead integrated circuits, each of which has nozzles formed therein for delivering printing fluid onto the surface of print media, a support member supporting and carrying the printing fluid for the at least two printhead integrated circuits, and an electrical connector for connecting electrical signals to the at least two printhead integrated circuits, drive electronics incorporating at least one controller for controlling the printing operation of at least one of the at least two printhead integrated circuits, a plurality of longitudinally extending electrical conductors arranged to provide power from a power supply to the drive electronics and the at least two printhead integrated circuits, and a casing in which the at least one printhead module, the drive electronics and the plurality of electrical conductors are removably mounted.

Abstract: Apparatus for printing and memory tag application onto a base medium includes a print head for printing onto the base medium, and a memory tag dispenser movable relative to the base medium for applying memory tags to the base medium. The print head may also be moveable relative to the base medium.

Abstract: The present invention provides a portable ink jet recording apparatus of mobile type in which the user does not pay attention to reservation of an electric power required for driving the recording apparatus. A detachable and exchangeable supplies container containing a recording material, recording fluid and fuel for a fuel cell is provided, and a hybrid cell comprised of a compact fuel cell and a secondary cell is used as a power supply system so that, when the ink jet recording apparatus is not driven, an electric power generated by the fuel cell is stored in the secondary cell.

Abstract: Embodiments of the present invention provide a modular printing system. In one embodiment, the modular printing system includes a first printer and a second printer. The modular printing system further includes a connector system adapted to interchangeably connect the first printer to the second printer and a control link adapted for communications between the first printer and the second printer to process a print job without user intervention.