Flying printing system using type belt

Details Flying printing system using type belt Flying printing system using type belt

1976-08-13

1978-02-14

Robinson, Thomas A.

Telegraphy

Systems

Printing

101 9314, B41J 100, H04L 1534

Patent

active

040740684

ABSTRACT:
A flying printing system using a type belt, in which in order to determine a type pitch M different from a predetermined print pitch N determined by the pitch of type hammers, the respective numbers d.sub.1 and d.sub.2 (d.sub.1 >d.sub.2) of print pitches N and type pitches M per a unit length L selected to be an integral of the print pitch N are selected so that M=N.multidot.d.sub.1 /d.sub.2. Types are arranged on the type belt in the order such that respective telegraph codes of the successively arranged types successively increase or decrease in binary numbers. Type-corresponding codes are shifted in a shift register in response to shift pulses synchronized with shifting of each type of the type belt. The type-corresponding codes in the shift register and input codes to be printed are compared with each other at time intervals d.sub.1 /d.sub.2 times the pulse intervals of the shift pulses to obtain a coincidence output to thereby drive the corresponding type hammers. Accordingly, the drive power capacity of the type hammer can be effectively reduced.

REFERENCES:
patent: 2993437 (1961-07-01), Demer et al.

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