Hammer-impression mechanisms

BPERFORMING OPERATIONS TRANSPORTING B41Printing, stamps B41JTYPEWRITERS SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS

B41J9/00Hammer-impression mechanisms

B41J9/02Hammers Arrangements thereof B41J9/04of single hammers B41J9/06of stationary hammers B41J9/08engaging more than one type-carrier B41J9/10of more than one hammer B41J9/12each operating in more than one character position B41J9/127Mounting of hammers B41J9/133Construction of hammer body or tip B41J9/14Means for selecting or suppressing individual hammers B41J9/16Means for cocking or resetting hammers B41J9/18Cams B41J9/20Springs B41J9/22Fluid-pressure means B41J9/24Electromagnetic means B41J9/26Means for operating hammers to effect impression B41J9/28Cams B41J9/30Springs B41J9/32arranged to be clutched to snatch roll B41J9/34Fluid-pressure means B41J9/36in which mechanical power is applied under electromagnetic control B41J9/38Electromagnetic means B41J9/40including an electro-adhesive clutch B41J9/42with anti-rebound arrangements B41J9/44Control for hammer-impression mechanisms B41J9/46for deciding or adjusting hammer-firing time B41J9/48for deciding or adjusting hammer-drive energy B41J9/50for compensating for the variations of printer drive conditions B41J9/52for checking the operation of print hammers B41J9/54for checking the breakage of print hammers