公开(公告)号：DE3167577D1

公开(公告)日：1985-01-17

申请号：DE3167577

申请日：1981-06-03

Applicant: IBM

Inventor： BOLCAVAGE RICHARD DONALD ,  HRYCK MICHAEL DAVID ,  KAUCZKA WILLIAM BERNARD ,  KINTER HAROLD BLAINE

IPC: B41J9/44 ,  B41J1/20 ,  B41J9/54 ,  B41J29/393 ,  G06K15/07 ,  G06K15/08 ,  G06F3/12 ,  B41J9/00

Abstract: A method and apparatus for testing print elements of a printer, such as a belt printer, in which the print element operating circuits are energized at an energy level insufficient to cause printing but sufficient to generate feedback signals for checking operativeness by a microprocessor.