公开(公告)号：US20160332439A1

公开(公告)日：2016-11-17

申请号：US15111247

申请日：2014-01-17

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Ning GE ,  Leong Yap CHIA ,  Wai Mun WONG

IPC: B41J2/045 ,  G11C16/32 ,  G11C16/08

CPC classification number: B41J2/04541 ,  B41J2/04543 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/04586 ,  G11C16/08 ,  G11C16/32

Abstract: Addressing an EPROM on a printhead is described. In an example, a printhead includes an electronically programmable read-only memory (EPROM) having a plurality of cells arranged in rows and columns, each of the cells having a addressing port, a row select port, and a column select port. A conductor is coupled to the addressing portion of each of the plurality of cells, A column shift register is coupled to the column select ports of the plurality of cells, the column shift register having a register location for each column of the plurality of cells and having an input to receive a first input signal. A row shift register is coupled to row select ports of the plurality of cells, the row shift register having a register location for each row of the plurality of cells and having an input to receive a second input signal.

Abstract translation: 描述了在打印头上寻址EPROM。 在一个示例中，打印头包括具有以行和列排列的多个单元的电子可编程只读存储器（EPROM），每个单元具有寻址端口，行选择端口和列选择端口。 一个导体耦合到多个单元的每个单元的寻址部分，列移位寄存器耦合到多个单元的列选择端口，列移位寄存器具有针对多个单元的每一列的寄存器位置， 具有用于接收第一输入信号的输入。 行移位寄存器耦合到多个单元的行选择端口，行移位寄存器具有针对多个单元的每行的寄存器位置，并具有用于接收第二输入信号的输入。