Printing machines with shifting roller platen

摘要: Imprinting of forms with fixed and variable data from printing elements comprising two distinct groups characters. A bed retains the form, a roller platen moves home position in first path across form to an actuated back second perform cycle. The is shiftable between such that as moved it operative imprint single line only one group characters, opposite direction other thereby compensate for imprinting pressure result rolling contact characters without reaching any adjacent