Ribbon meandering preventing device for thermal printers

(19)

(11)

EP 0 135 693 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	19.03.1986 Bulletin 1986/12

(43)	Date of publication A2:
	03.04.1985 Bulletin 1985/14

(21)	Application number: 84108431

(22)	Date of filing: 17.07.1984

(84)	Designated Contracting States:
	DE FR GB SE

(30)

Priority:

10.09.1983 JP 13962583

(71)	Applicant: Kabushiki Kaisha Sato
	()

(72)	Inventor:
	Oikawa, Tadahisa 19-chiwari 18-banchi ()

(54)	Ribbon meandering preventing device for thermal printers

(57) Herein disclosed is a ribbon meandering preventing device for use with a thermal printer which has a thermal head at the feed side of a heat-sensitive transfer carbon ribbon. A ribbon correcting plate is disposed to have its free end for supporting elastically and dragging the carbon ribbon before the carbon ribbon is guided to run side by side with a paper web of labels so that it may be heated to have its carbon transferred to print the labels one by one. The remaining base end of the ribbon correcting plate is cantilevered to the thermal printer such that the free end of the same is held to abut against the carbon ribbon for tensing the same to absorb the slackness and/or meandering run of the carbon ribbon. The ribbon correcting plate is stepped to ensure the elasticity and has its free end rounded to allow the carbon ribbon to smoothly run thereon while retaining the dragging action.

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