Perforating device of stamp unit

Details Perforating device of stamp unit Perforating device of stamp unit

1995-12-26

1996-09-24

Tran, Huan H.

Incremental printing of symbolic information

Thermal marking apparatus or processes

347186, B41J 232

Patent

active

055595456

ABSTRACT:
A perforating device used by a stamp unit for perforating a desired character string pattern on a print face portion of the stamp unit which incorporates an ink impregnation member covered with heat sensitive stencil paper including a thermoplastic film. The perforating device includes: a thermal head having a plurality of heating elements selectively powered and heated to reach a first temperature to melt the thermoplastic film and perforate the heat sensitive stencil paper based on the character string pattern. A moving mechanism moves the thermal head and the print face portion relative to each other after the thermal head has performed the perforation. A head driving circuit powers the heating elements to reach a second temperature lower than the first temperature while the thermal head and the print face portion are being moved by the moving mechanism relative to each other.

REFERENCES:
patent: 5019836 (1991-05-01), Iwata et al.
patent: 5184549 (1993-02-01), Imamaki et al.
patent: 5251567 (1993-10-01), Fuwa
patent: 5253581 (1993-10-01), Miki et al.

Affiliated with

Also associated with

Rating

Perforating device of stamp unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1932307