Retractable platen control in check endorsing machines

Claim 1

IN A PRINTING APPARATUS, A SHEET GUIDEWAY, A PRINT WHEEL POSITIONED ALONG SAID GUIDEWAY, A ROTATABLE PLATEN POSITIONED ALONG SAID GUIDEWAY FOR COOPERATION WITH SAID PRINT WHEEL, SAID PLATEN MOUNTED FOR BODILY MOVEMENT RELATIVE TO SAID PRINT WHEEL FROM A PRINT POSITION ADJACENT SAID PRINT WHEEL TO A NORMALLY RETRACTED POSITION, A SETTABLE STOP MEMBER NORMALLY LIMITING MOVEMENT OF SAID PLATEN FROM SAID PRINT WHEEL TO SAID RETRACTED POSITION, AN ACTUATOR OPERATIVELY CONNECTED TO SAID PLATEN, SAID ACTUATOR OPERABLE ON ACTIVATION THEREOF TO MOVE SAID PLATEN FROM SAID NORMALLY RETRACTED POSITION TO SAID PRINT POSITION ADJACENT SAID PRINT WHEEL, MEANS URGING SAID PLATEN TOWARD SAID STOP MEMBER AND EFFECTIVE UPON DEACTIVATION OF SAID ACTUATOR, SAID SETTABLE STOP MEMBER SETTABLE AT THE WILL OF AN OPERATOR TO EXTEND ITS DISTANCE FROM SAID PRINT WHEEL TO ESTABLISH AN INACTIVE POSITION OF SAID PLATEN, A FIRST CONTROL MEMBER OPERATIVELY CONNECTED TO SAID ACTUATOR TO EFFECT ACTUATION THEREOF AND RESPONSIVE TO THE PASSING OF A SHEET ALONG SAID GUIDEWAY, AND A SECOND CONTROL MEMBER OPERATIVELY CONNECTED TO SAID ACTUATOR AND OPERABLE TO DISABLE SAID ACTUATOR IRRESPECTIVE OF THE OPERATION OF SAID FIRST CONTROL MEMBER.