Letter printing method for a packaging machine

(19)

(11)

EP 0 727 315 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	09.04.1997 Bulletin 1997/15

(43)	Date of publication A2:
	21.08.1996 Bulletin 1996/34

(21)	Application number: 96102208.4

(22)	Date of filing: 14.02.1996

(51)	International Patent Classification (IPC)⁶: B41J 3/00

(84)	Designated Contracting States:
	DE FR GB NL

(30)

Priority:

20.02.1995 JP 68493/95

(71)	Applicant: Daisey Kikai Co., Ltd.
	Tsurugashima-shi, Saitama-Ken (JP)

(72)	Inventor:
	Sogabe, Masuo, c/o Dausey Kikai Co., Ltd. Tsurugashima-shi, Saitama Ken (JP)

(74)	Representative: Hering, Hartmut, Dipl.-Ing.
	Patentanwälte Berendt, Leyh & Hering Innere Wiener Strasse 20 D-81667 München D-81667 München (DE)

(54)	Letter printing method for a packaging machine

(57) There is provided a simply applicable printing method for a letter printing on a film in a packaging machine which makes sealing as it changes transfer velocities of a letter printing object. A transfer velocity of a packaging film (8) is detected by a rotary encoder (7). A carbon tape (2) unwound from a carbon tape roll (1) and the packaging film (8) are placed between a head supporting platen roller (6) and a line thermal head (5) and a necessary printing is made on the packaging film (8). An electric supply to the thermal head (5) is controlled synchronously with the transfer or moving velocity of the packaging film (8) detected by the rotary encoder (7).

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