초록 ▼

In an impact printing apparatus including a carriage which carries a rotary type element, the length of time required for a motor drive system for the carriage stop hunting and stabilize at a desired printing position depends on variables including the distance the carriage was moved, character pitc

In an impact printing apparatus including a carriage which carries a rotary type element, the length of time required for a motor drive system for the carriage stop hunting and stabilize at a desired printing position depends on variables including the distance the carriage was moved, character pitch and the like. The apparatus senses these variables and delays hammering of the type element for printing for a length of time calculated to reduce the displacement of the carriage from the desired printing position caused by hunting to an acceptable value while maximizing the effective printing speed.

대표청구항 ▼

An impact printing apparatus including a movable carriage, a rotary type element mounted on the carriage, drive means for driving the carriage to and stopping the carriage at a desired printing position and hammer means for hammering the type element for printing at the desired printing position, ch

An impact printing apparatus including a movable carriage, a rotary type element mounted on the carriage, drive means for driving the carriage to and stopping the carriage at a desired printing position and hammer means for hammering the type element for printing at the desired printing position, characterized by comprising: delay means for controlling the hammer means to hammer the type element at the expiration of a variable delay time which begins when the carriage has been driven to the desired printing position by the drive means; and control means responsive to a distance of movement of the carriage from a previous position to the desired printing position and setting the delay time of the delay means in accordance with a predetermined function thereof.