PRINTER SUCH AS A COMPUTER PRINTER HAVING A SPACING ADJUSTMENT APPARATUS FOR THE PRINT HEAD

摘要

A computer printer which has a print head and a printing bed plate comprises an apparatus to adjust the distance between the print head and the printing bed plate to thereby allow for printing on charts which are not of uniform thickness. The distance adjustment apparatus comprises a rigidly mounted sensing roller and/or a leading or trailing feeler lever, which electronically controls the print head distance.