Ribbon advance monitor

Details Ribbon advance monitor Ribbon advance monitor

1992-11-16

1994-05-17

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

400225, G01N 2186

Patent

active

053130715

ABSTRACT:
Print drums are described wherein a special "alignment character" is placed, along with print-symbols, on the surface of the print drum, mixed-in with at least one of the character sets.

REFERENCES:
patent: 4924240 (1990-05-01), Herbert et al.
patent: 4969761 (1990-11-01), Gibson-Saxty
patent: 4970531 (1990-11-01), Shimizu et al.
patent: 4973985 (1990-11-01), Genno et al.

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