Thermal head recording device

Details Thermal head recording device Thermal head recording device

1982-09-24

1984-10-02

Hartary, Joseph W.

Recorders

Thermal recording

358296, G01D 1510, H04N 122

Patent

active

044751141

ABSTRACT:
A thermal head recording device includes a thermal head adapted to print a sheet, a source of information alternately producing coded image signal having an arbitrary length and coded EOL signal, decoder for decoding the coded image signal and coded EOL signal into image signal having a predetermined length and EOL signal, respectively. The image signal is transmitted to the thermal head in response to a driving pulse produced from driving pulse generator. The driving pulse generator includes a measuring circuit for measuring cycle length between two consecutive EOL signals, a circuit for detecting temperature of the thermal head, a circuit for determining pulse duration based on both the cycle length between two consecutive EOL signals measured by the measuring circuit and the temperature of the thermal head, a circuit for producing at least one reference pulse having a predetermined frequency, and a circuit for producing a driving pulse having a frequency determined by the reference pulse producing circuit and a pulse duration determined by the determining circuit.

REFERENCES:
patent: 4264933 (1981-04-01), Kurahayashi et al.
patent: 4309712 (1982-01-01), Iwakura
patent: 4347518 (1982-08-01), Williams et al.
patent: 4348667 (1982-09-01), Williams et al.
patent: 4409599 (1983-10-01), Yasuda et al.

Affiliated with

Also associated with

Rating

Thermal head recording device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermal head recording device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal head recording device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-528617