An intermittent motion imprinter of the type having a reciprocal marker head suspended from a shaft, an opposed anvil, tape supply and take-up reels, a tape advance mechanism and a reciprocal shuttle driving the head and tape advance mechanism, has a common holder for the head shaft and shuttle with intersecting closed periphery slots respectively receiving and guiding the shuttle and the head shaft. The holder is a two-piece split block defining, when assembled, a transverse slot for the shuttl...

A printhead which high-precisely performs registration adjustment between print dots even in use of plural printheads or a printhead having plural printing element arrays, and a printing apparatus using the printhead. Registration adjustment can be performed with a value equal to or less than a printing resolution in a main-scanning direction by changing the order of nozzle blocks of at least one of two nozzle arrays, in accordance with a stored amount of registration shift, without transmission...

A printhead with a comparatively simple construction, which contributes to reducing the cost of the entire system and development work, effectively utilizes essential constituent devices of a logic circuit of the printhead such as a shift register, while omitting control on the printing apparatus side, and individually performs stable print operation, while suppressing variation of energy inputted to heat generators due to voltage drop by parasitic resistance. A printing apparatus incorporates t...

This invention relates to a printhead in which a plurality of resistors are selectively activated by an external control circuit to produce the ejection of droplets of ink through nozzles located in correspondence with the resistors. Selection and activation are performed according to a matrix having a plurality of vertical lines corresponding to the number of resistors per group of nozzles and a plurality of horizontal lines corresponding to the number of groups of nozzles in the head. The grou...

A printer with a carriage adapted to receive a printhead capable of printing an ink at an effective nozzle density along a medium advance axis. The printhead includes a plurality of substantially parallel columnar arrays of nozzles, each columnar array having an actual nozzle density along the medium advance axis less than the effective nozzle density. An alignment structure in the carriage orients the printhead to print at the actual nozzle density along the medium advance axis such that indivi...

This invention relates to an ink supply arrangement for a printhead of an print engine. The printhead has an array of MEMS ink ejection devices mounted on a surface of a wafer and an ink supply passage extending through the wafer from an opposed surface of the wafer to each ink ejection device. The ink ejection devices are arranged in groups. Accordingly, the ink supply arrangement includes a block of silicon material mountable on the opposed surface of the wafer. The block has a plurality of ch...

An ink jet printhead comprising a channel plate having a plurality of ink channels etched into at least one surface thereof, actuators respectively associated with each of the ink channels for pressurizing ink contained in the ink channels, and means defining an ink reservoir communicating with the ink channels, wherein said ink reservoir is defined by a base member made of a material different from that of the channel plate.

A printhead assembly for a pagewidth drop on demand ink jet printer includes an array of printhead modules extending across the pagewidth. A flexible printed circuit board carries data and power to the modules and also extends across the pagewidth. A pair of busbars is electrically connected to the flexible printed circuit board to carry power to it. The busbars also extend across the pagewidth.

A printhead includes plural print elements grouped in blocks. The blocks are selected by a block selection unit to which an initial value is inputted. The initial value is kept in a memory unit, and the blocks are autonomously and periodically selected by the initial value kept in the memory unit. The initial value is variable, and the block selection unit changes the order of selected blocks using the changed initial value. Thus, displacement in the main scanning direction resulting from the pe...

An integral sensing head includes a single fiber optic faceplate substrate to which are connected photodiode arrays, circuits for selectively controlling the transmission of electronic information signals from the photodiodes and interconnecting conductive lines all disposed on the same fiber optic faceplate substrate which thereby provides the optical lens system for the photodiodes and a supporting substrate to which the active components are mounted and electrically interconnected by conducti...