Browse Prior Art Database

Serial Printing

IP.com Disclosure Number: IPCOM000084456D
Original Publication Date: 1975-Nov-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 64K

Publishing Venue

IBM

Related People

Gilbreth, FM: AUTHOR [+2]

Abstract

Serial printers which utilize either rotating disks or disks which stop prior to printing are well known. The stop-start disk printer shown has print fonts 10 on the circumference of a low-inertia printed-circuit Serial printers which utilize either rotating disks or disks which stop prior to printing are well known. The stop-start disk printer shown has print fonts 10 on the circumference of a low-inertia printed-circuit motor armature 11 This configuration integrates the motor and the print carrier. A hammer 12 (shown schematically) strikes the back of the font 10 and the font then strikes a ribbon-paper combination 15.

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Serial Printing

Serial printers which utilize either rotating disks or disks which stop prior to printing are well known. The stop-start disk printer shown has print fonts 10 on the circumference of a low-inertia printed-circuit Serial printers which utilize either rotating disks or disks which stop prior to printing are well known. The stop-start disk printer shown has print fonts 10 on the circumference of a low-inertia printed-circuit motor armature 11 This configuration integrates the motor and the print carrier. A hammer 12 (shown schematically) strikes the back of the font 10 and the font then strikes a ribbon-paper combination 15.

Alternatively, the printer could be configured as a back printer in which a hammer is positioned so as to strike the paper which in turn hits the font.

The integrated print carrier/print motor device is combined with an electronically controlled servo system, not shown, for rapidly starting and stopping the motion of the motor. The disk can be stopped at the time of printing; hence, there is no relative transverse motion between the hammer 12 and print carrier at the moment of hammer impact and the print quality can be high. Further, there will be less noise and less wear than in an on-the-fly printer, since the velocity of the print hammer 12 can be lower than required in the case where the print carrier 11 must be in motion at the time of hammer impact.

A further point is that the placement of fonts 10 on the periphery of the d...