| 摘要 |
PURPOSE:To eliminate slippage by providing a generating means for a timing signal having a delay corresponding to the speed of a hammer bank in a line printer which prints while giving a head an asynchromesh traverse motion. CONSTITUTION:The following means are provided: a means 10-14 to detect an instantaneous location of a head bank in motion at a fixed distance interval and generate a position timing pulse (Gi) when each hammer is located at a prearranged distance from the next printing dot location; a means 16 to generate a lumped voltage (Ki) with a prearranged gradient in response to said pulse (Gi); a means 18 to generate a DC voltage signal (J) having a level which changes in accordance with the pulse period of the pulse (Gi) through the conversion of the pulse (Gi) frequency to a voltage; a means 24 to generate a printing drive timing signal (Mi) having a delay time (Ti) which meets the speed of the hammer bank against each pulse (Gi); and a means 26, 28 to selectively drive each hammer in response to the signal (Mi). |
