Pen recorder

Abstract

A pen recorder for writing characters and graphic patterns with recording pens on a sheet of recording paper by moving the recording pens in an X-axis direction and moving the sheet of recording paper in a Y-axis direction. When a desired key on a keyboard is depressed, the recording pens and the sheet of recording paper are moved to write a character corresponding to the depressed key on the sheet of recording paper. The size of the character can relatively freely be selected by operation switches for selecting horizontal and vertical character sizes. The pen recorder is automatically controlled for the same operability when the character size is changed in any of horizontal and vertical directions. Where the character size is changed horizontally, an alarm is issued prior to the completion of recording in a recording position a prescribed number of characters prior to a preset right margin. Where the character size is changed vertically, a line spacing commensurate with the changed character size is produced in one line feed operation. Bold characters can freely be produced by recording one character twice in slightly shifted positions.