Printer with printing drum

Details Printer with printing drum Printer with printing drum

1981-09-01

1983-07-19

Coven, Edward M.

Printing

Selective or progressive

Bed and platen machines

101 99, B41J 144

Patent

active

043937705

ABSTRACT:
A table calculator provided with printer is disclosed. The printer comprises a printing drum having a group of odd digit types and a group of even digit types arranged shifted from each other in the direction of line. A pulse generator generates timing pulses corresponding to the odd digit types on the drum. Another pulse generator generates timing pulses corresponding to the even digit types. When any selected type on the drum comes into the printing position, the drum is stopped to effect printing. Printing is carried out on the basis of the timing pulse corresponding to even digit when odd digit type is to be printed. When even digit type is to be printed, the printing is carried out on the basis of timing pulse corresponding to odd digit.

REFERENCES:
patent: Re26240 (1967-07-01), Wasserman
patent: 3461796 (1969-08-01), Belson et al.
patent: 3855923 (1974-12-01), Foley
patent: 3921517 (1975-11-01), Barcomb et al.
patent: 4152983 (1979-05-01), Toyomura et al.
patent: 4303013 (1981-12-01), Shimodaira
patent: 4317412 (1982-03-01), Bolcavage et al.

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