公开(公告)号：US3672297A

公开(公告)日：1972-06-27

申请号：US3672297D

申请日：1970-06-30

Applicant: IBM

Inventor： BERGLUND NEIL C ,  KING ROBERT W ,  SWEARINGEN KENT W

IPC: B41J9/14 ,  B41J5/30

CPC classification number: B41J9/14

Abstract: A high speed printer of the chain type in which the type characters on the chain are spaced apart a distance greater than the distance between adjacent print positions and in which the number of firing hammers is less than the number of print positions such that each hammer services several print positions. The attachment or control for the printer maintains identity of the type character in front of a print position optioned to print by modifying a type character counter in accord with scan being taken, print position and position of the firing hammers.

Abstract translation: 一种链式高速打印机，其中链条上的类型字符间隔开大于相邻打印位置之间的距离的距离，并且其中击发锤的数量小于打印位置的数量，使得每个锤子服务 几个打印位置。 打印机的附件或控件通过根据拍摄的扫描，打印位置和拍摄锤的位置修改类型字符计数器来维持打印位置前面的类型字符的身份。

公开(公告)号：US3680480A

公开(公告)日：1972-08-01

申请号：US3680480D

申请日：1971-04-26

Applicant: IBM

Inventor： BERGLUND NEIL C

IPC: B41J9/14 ,  B41J9/00 ,  B41J1/20 ,  G06F7/00

CPC classification number: B41J9/14

Abstract: Circuitry for controlling the hammers of a chain type printer which is effective for maintaining each hammer set or energized for a period greater than the time of one print scan (the time between alignments of successive print characters on the chain with the same print position) and less than the time of two print scans. An address, having a predetermined relationship with the address in main storage of a byte to be printed, in the form of a particular character is stored in a hammer address register; and the address in this register is applied to a set decoder for causing a hammer to be fired and is also applied to a reset decoder for causing resetting of a hammer. The decoders decode the address in the hammer address register differently so that the hammer remains set or energized for the period mentioned.

Abstract translation: 用于控制链式打印机的锤子的电路，其有效地保持每个锤组的设置或通电一段时间大于一次打印扫描的时间（链条上相继的打印字符在相同打印位置的对准之间的时间）和 少于两次打印扫描的时间。 以特定字符的形式具有与要打印的字节的主存储器中的地址的预定关系的地址存储在锤地址寄存器中; 并且该寄存器中的地址被应用于用于引起锤击的设置解码器，并且还将其施加到复位解码器以引起锤的重置。 解码器以不同的方式对锤位地址寄存器中的地址进行解码，以便在所述期间锤保持置位或通电。

公开(公告)号：US3691947A

公开(公告)日：1972-09-19

申请号：US3691947D

申请日：1971-05-13

Applicant: IBM

Inventor： BERGLUND NEIL C ,  PETRICKA GERALD H

IPC: B41J9/14 ,  B41J9/38 ,  B41J1/20

CPC classification number: B41J9/14

Abstract: Circuitry for controlling the hammers of a chain type printer which is effective for maintaining each hammer set for a period greater than the time of one print scan (the time between alignments of successive print characters on the chain with the same print position) and less than the time of two print scans. The data to be printed by each hammer is obtained from a print buffer. After firing of a print hammer, within a time less than one print scan, a substitute piece of data is written in the location in the buffer from which the data printed by the hammer is derived, and the circuitry recognizes this substitute piece of data and does not reset the hammer at this time. Subsequently, the circuitry recognizes this substitute data and inserts still another piece of substitute data, this occurring one print scan subsequent to hammer firing. The circuitry recognizes the second substitute piece of data so that when the hammer is again addressed, a fraction of a print scan time later, the hammer is reset.

Abstract translation: 用于控制链式打印机的锤的电路，其有效地保持每个锤组的时间大于一次打印扫描的时间（链上连续的打印字符在相同打印位置的对准之间的时间）小于 两次打印扫描的时间。 每个锤子要打印的数据从打印缓冲器获得。 在打印打印锤之后，在不到一次打印扫描的时间内，将替代数据片写入缓冲器中由锤子打印的数据导出的位置，并且电路识别该替代数据片段，并且 此时不重设锤子。 随后，电路识别该替代数据并插入另一片替代数据，这在锤击后发生一次打印扫描。 电路识别第二个替代数据，以便当锤子再次被寻址时，打印扫描时间的一小部分稍后，锤被复位。