Printing ribbon spool

Details Printing ribbon spool Printing ribbon spool

1985-10-01

1987-10-20

Burr, Edgar S.

Typewriting machines

Including interposed inking device for record-medium

Renovation of used ribbon

400242, B41J 3114

Patent

active

047010622

ABSTRACT:
A printing ribbon spool is disclosed for maintaining the print-out density or consistency of a printing ribbon. The spool contains a sealed reservoir of ink. Within the reservoir there is provided a sealed container of ink which communicates with the reservoir when it is desired to use the spool.

REFERENCES:
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patent: 3819026 (1974-06-01), Ploeger, Jr. et al.
patent: 3987137 (1976-10-01), Neumann et al.
patent: 4115012 (1978-09-01), Ploeger, Jr. et al.
patent: 4506807 (1985-03-01), Anderson

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