公开(公告)号：US5541629A

公开(公告)日：1996-07-30

申请号：US312489

申请日：1994-09-26

申请人： Michael B. Saunders ,  Andre Garcia ,  S. Dana Seccombe ,  Rajeev Babyal ,  James R. Hulings

发明人： Michael B. Saunders ,  Andre Garcia ,  S. Dana Seccombe ,  Rajeev Babyal ,  James R. Hulings

IPC分类号： B41J2/01 ,  B41J2/05 ,  B41J29/00 ,  G06K15/10

CPC分类号： B41J2/04521 ,  B41J2/04541 ,  B41J2/04543 ,  B41J2/04546 ,  B41J2/0458 ,  G06K15/10 ,  G06K2215/0077

摘要： The interconnections for transmitting print commands from a printer to a printhead are reduced by the use of on-printhead circuitry. In a basic embodiment, the printhead driver circuitry includes a matrix of drivers controlled by gates, power and control interconnections. Interconnections are reduced by enabling rows and columns of drivers with the power and control interconnections. A multiplexer may also be added to further reduce control interconnections. In an advanced embodiment, the printhead driver circuitry includes a register for converting a serial stream of print enable signals from the printer into a format for applying such signals concurrently to switching devices for one or more heater resistors. An address generator on the printhead generates address signals in response to an address generating signal from the printer. The printer provides constant power to the printhead so that energizing of the heater resistors is a function of the address and print enable signals and not of the power. Variations on the basic and advanced embodiments are also shown and described.

摘要翻译： 通过使用打印头电路来减少从打印机向打印头传送打印命令的互连。 在基本实施例中，打印头驱动器电路包括由门，功率和控制互连控制的驱动器矩阵。 通过启用功率和控制互连的驱动器行和列来减少互连。 还可以添加多路复用器以进一步减少控制互连。 在高级实施例中，打印头驱动器电路包括用于将来自打印机的打印使能信号的串行流转换为用于同时向一个或多个加热电阻器的切换装置施加这种信号的格式的寄存器。 打印头上的地址发生器响应于来自打印机的地址产生信号而产生地址信号。 打印机为打印头提供恒定的电力，以便加热电阻器的通电是地址和打印使能信号而不是功率的功能。 还显示和描述了基本和高级实施例的变化。

公开(公告)号：US5363134A

公开(公告)日：1994-11-08

申请号：US886641

申请日：1992-05-20

申请人： George Barbehenn ,  James R. Hulings ,  Rajeev Badyal ,  Ross R. Allen ,  Michael B. Saunders

发明人： George Barbehenn ,  James R. Hulings ,  Rajeev Badyal ,  Ross R. Allen ,  Michael B. Saunders

IPC分类号： B41J2/01 ,  B41J2/05 ,  B41J2/175 ,  G06F13/366 ,  G06K19/07

CPC分类号： B41J2/17546 ,  B41J2/04506 ,  B41J2/04541 ,  B41J2/04543 ,  B41J2/04563 ,  B41J2/0458 ,  B41J2/175 ,  G06K19/07 ,  B41J2202/17

摘要： An integrated circuit for use in the printhead of an ink jet printer includes an array circuit for heating an ink reservoir to produce a pattern of ink jets, the array circuit including a plurality of resistor cells arranged into rows and columns. A corresponding number of row and column lines are coupled to the integrated circuit array for selecting and energizing the resistor cells according to the desired printing pattern. An identification circuit integrated into the same substrate as the array circuit includes one or more programmable paths, the programmable paths corresponding and coupled to each row line. The programmable paths each include the serial combination of a programmable fuse and an active device. The opposite end of the programmable paths are coupled together at a common node, which in turn is coupled to an output circuit for providing a single output signal in response to a polling of the row lines. The identification circuit can be programmed and polled without adversely affecting or energizing the array circuit.

摘要翻译： 用于喷墨打印机的打印头的集成电路包括用于加热墨水储存器以产生喷墨图案的阵列电路，该阵列电路包括布置成行和列的多个电阻单元。 相应数量的行和列线耦合到集成电路阵列，用于根据期望的打印模式选择和激励电阻单元。 集成在与阵列电路相同的衬底中的识别电路包括一个或多个可编程路径，可编程路径对应并耦合到每条行线。 可编程路径各自包括可编程保险丝和有源器件的串行组合。 可编程路径的相对端在公共节点处耦合在一起，该公共节点又耦合到输出电路，以响应于对行线的轮询来提供单个输出信号。 可以对识别电路进行编程和轮询，而不会对阵列电路造成不利影响或激励。