JPH02124150U

JPH02124150U -

Info

Publication number: JPH02124150U
Application number: JP3285389U
Authority: JP
Priority date: 1989-03-23
Filing date: 1989-03-23
Publication date: 1990-10-12

Description

[Brief explanation of drawings]

第１図は本考案の好適な一実施例の要部の構成
説明図、第２図は本考案の第２の実施例の構成説
明図、第３図ａ及びｂは従来のプリンタの印字機
構の全体説明図及びその一部拡大説明図、第４図
ａ及びｂは夫々ドラムが一回転する間におけるド
ツトピツチ変動量及びスキユー量を示す図である
。１……プラテンドラム、２，３……送りローラ
、４……駆動ローラ、５……記録紙搬送ベルト、
７……記録紙先端挟圧爪、８……サーマルヘツド
、１０……インクシート、１１……ソレノイド、
１２……押えローラ、１３……記録紙押え手段、
２０……押え手段、２５，２６，２７……押えロ
ーラ、３０……ローラ支持体。 Fig. 1 is an explanatory diagram of the main parts of a preferred embodiment of the present invention, Fig. 2 is an explanatory diagram of the composition of a second embodiment of the invention, and Figs. 3 a and b are conventional printer printing mechanisms. 4A and 4B are diagrams showing the amount of dot pitch fluctuation and the amount of skew, respectively, during one revolution of the drum. 1...Platen drum, 2, 3...Feed roller, 4...Drive roller, 5...Recording paper conveyance belt,
7...Recording paper tip pinch claw, 8...Thermal head, 10...Ink sheet, 11...Solenoid,
12... Pressing roller, 13... Recording paper holding means,
20... Pressing means, 25, 26, 27... Pressing roller, 30... Roller support.

Claims

[Scope of Claim for Utility Model Registration] (1) In a thermal printer that transfers ink on an ink sheet to recording paper wound around a platen drum by heating with a thermal head, the recording paper at the rear in the rotational direction of the platen drum. 1. A drum transfer type thermal printer characterized in that a pressing means made of an elastic body is arranged at a position immediately before the material enters a printing section. (2) The presser means is a plurality of presser rollers that are elastically pressed against each other, and the pressurizing force of each presser roller against the platen drum is set to decrease sequentially toward the presser rollers closer to the print section. A drum transfer type thermal printer according to claim 1.