Abstract:
A HIGH SPEED ELECTROSTATIC PRINTING MECHANISM INCLUDING A HOLLOW TYPE ROLL PRESENTING A CONCAVE MATRIX OF RAISEDFONT ELECTRODES CONFIGURED A DIFFERENT ALPHA-NEMERIC PRINTCHARACHERS. IN ONE EMBODIMENT ROWS OF CHARACTER-FONT ARE PRESENTED, EACH ALONG A RESPECTIVE CONDUCTIVE STRIP, THESE STRIPS BEING ELECTRICALLY-INDEPENDENT AND SURROUNDING AN INNER ROTATING DRIVE ROLL PROVIDED TO ADVANCE DIELECTRIC RECORDING MEDIA PAST THE STRIP MATRIX TO BE SELECTIVELY CHARGE-IMAGED. THE ELECTROSTATIC TRANSFER-POTENTIAL APPLIED ACROSS SELECTED "PRINT-AREAS" OF THE DIELECTRIC CAN BE ARRANGED TO (ELECTROSTATICALLY) IMAGE, EITHER "LINE-BY-LINE" (DRIVING A RECORD REPEATEDLY PAST THE MATRIX, ONE PASS FOR EACH LINE), OR "BY-THE-PAGE" (PROVIDED SUFFICIENT MEMORY STORAGE AND FAST-SWITCHING MEANS ARE AVAILABLE). THE DIELECTRIC IS THEREAFTER DEVELOPED AND COPIED AT A TONER/ TRANSFER STATION.