公开(公告)号：US5577172A

公开(公告)日：1996-11-19

申请号：US299010

申请日：1994-08-31

申请人： Danny J. Vatland ,  Jeff D. Pagel

发明人： Danny J. Vatland ,  Jeff D. Pagel

IPC分类号： G06F3/12 ,  H04L29/06 ,  G06K15/00

CPC分类号： H04L69/26 ,  G06F3/1293

摘要： A network protocol facilitates high speed transmission of raster data from a server to a client. The protocol defines a first sub-protocol for negotiating a connection and preparing to transmit a print job, and a second sub-protocol for transmitting a large quantity of raster data. The second sub-protocol allows the recipient of the data to dictate the order in which various types of data are transmitted, while allowing for efficient error correction of lost and/or corrupted packets. In one embodiment, a server is configured to transmit data to a client using the protocol of the present invention. In another embodiment, a client is configured to receive data from the server according to the protocol of the present invention. The protocol minimizes handshaking by sending a large number of data packets between acknowledgements.

摘要翻译： 网络协议便于从服务器到客户端的光栅数据的高速传输。 协议定义用于协商连接并准备传送打印作业的第一子协议，以及用于发送大量光栅数据的第二子协议。 第二子协议允许数据的接收者指示传送各种类型的数据的顺序，同时允许丢失和/或损坏的分组的有效纠错。 在一个实施例中，服务器被配置为使用本发明的协议向客户端发送数据。 在另一个实施例中，客户端被配置为根据本发明的协议从服务器接收数据。 协议通过在确认之间发送大量数据包来最大限度地减少握手。

公开(公告)号：US5805183A

公开(公告)日：1998-09-08

申请号：US337074

申请日：1994-11-10

申请人： Steven L. Lidke ,  Jeff D. Pagel ,  Paul R. Erickson

发明人： Steven L. Lidke ,  Jeff D. Pagel ,  Paul R. Erickson

IPC分类号： B41J2/175 ,  B41J2/21 ,  B41J11/00 ,  B41J19/20 ,  B41J25/304 ,  G06K15/10 ,  B41J2/145 ,  B41J29/38

CPC分类号： B41J25/304 ,  B41J11/00 ,  B41J19/207 ,  B41J2/175 ,  B41J2/2132 ,  G06K15/105 ,  B41J19/142 ,  B41J2/17593

摘要： A scanning head ink jet printer utilizes variable paper advance interlacing. The printer includes a plurality of heads each having a plurality of rows of uniformly spaced ink jets which print different colors. A printing medium is advanced in a series of non-uniform distances (d.sub.1, d.sub.2, d.sub.3, d.sub.4) the sum of which is equal to the total number of uniformly-spaced ink jets (n) of one of the colors times the uniform spacing (s) of one pixel row from an adjacent pixel row. In a specific embodiment, a total advance of the printing medium is equal to the total number of uniformly-serial spaced ink jets of one color is 48, the spacing is four pixels, and the non-uniform distances include 49, 49, 45 and 49 pixels.

摘要翻译： 扫描头喷墨打印机利用可变纸张提前隔行扫描。 打印机包括多个头部，每个头部具有多行排列均匀间隔的喷墨头，其打印不同的颜色。 打印介质以一系列不均匀的距离（d1，d2，d3，d4）前进，其总和等于一种颜色的均匀间隔的喷墨（n）的总数乘以均匀间隔 （一个或多个）来自相邻像素行的一个像素行。 在具体实施例中，打印介质的总进给量等于一个颜色的均匀串行间隔喷墨的总数为48，间隔为四个像素，并且不均匀的距离包括49,49,45和 49像素。

公开(公告)号：US5790150A

公开(公告)日：1998-08-04

申请号：US197966

申请日：1994-02-17

申请人： Steven L. Lidke ,  Paul R. Erickson ,  Jeff D. Pagel

发明人： Steven L. Lidke ,  Paul R. Erickson ,  Jeff D. Pagel

IPC分类号： B41J2/21 ,  G06K15/10 ,  B41J2/15 ,  B41J23/00

CPC分类号： B41J2/2132 ,  G06K15/107

摘要： A printer controller for an ink jet printer controls a print head to selectively print only a portion of the print dots at pixels locations in a print swath during each pass of a print carriage across a print medium. At least four passes are made before the print medium is advanced to a new print swath. The portion of the pixel locations for each pass are chosen such that no pixel location to be printed on that pass is orthogonally or diagonally adjacent to any other pixel location to be printed in the same pass. To improve linear print speed, the print carriage is moved across the print medium at a speed that is greater than a maximum firing rate for the print head divided by a print dot density for the ink jet printer.

摘要翻译： 用于喷墨打印机的打印机控制器控制打印头，以便在打印托架穿过打印介质的每次通过期间，仅在打印条纹中的像素位置仅打印打印点的一部分。 在打印介质前进到新的打印条纹之前至少进行四次通过。 选择每个通道的像素位置的部分，使得不要在该通道上打印的像素位置在相同的通过中与要打印的任何其它像素位置正交或对角地相邻。 为了提高线性打印速度，打印托架以大于打印头的最大喷射速度除以喷墨打印机的打印点密度的速度在打印介质上移动。