JPH01146958U

JPH01146958U -

Info

Publication number: JPH01146958U
Application number: JP4402388U
Authority: JP
Priority date: 1988-03-31
Filing date: 1988-03-31
Publication date: 1989-10-11

Description

[Brief explanation of the drawing]

第１図は本考案に係る切替機構を備えたプリン
タの概略構成図、第２図はフイードローラとピン
チローラの斜視図、第３図ａ〜ｄは各切替用カム
の正面図、第４図はプリンタの外観斜視図、第５
図は動作タイミングを示す図である。１……プリンタ本体、２……連続用紙、３……
単票用紙、５……印字ヘツド、７，９……フイー
ドローラ、８，１０……ピンチローラ、１１……
トラクタ、１８……連続用紙供給通路、１９……
単票用紙供給通路、２０……通路切替機構、２２
……通路切替用カム、２６……板ばね、２９……
テンシヨン切替機構、３０……テンシヨン切替用
カム、３３……テンシヨン切替機構、４４……通
路切替機構。 Fig. 1 is a schematic configuration diagram of a printer equipped with a switching mechanism according to the present invention, Fig. 2 is a perspective view of a feed roller and a pinch roller, Figs. 3 a to d are front views of each switching cam, and Fig. 4 is a External perspective view of the printer, No. 5
The figure is a diagram showing operation timing. 1...Printer body, 2...Continuous paper, 3...
Cut sheet, 5...print head, 7,9...feed roller, 8,10...pinch roller, 11...
Tractor, 18... Continuous paper supply path, 19...
Slip paper supply passage, 20... passage switching mechanism, 22
... Passage switching cam, 26... Leaf spring, 29...
Tension switching mechanism, 30... Tension switching cam, 33... Tension switching mechanism, 44... Passage switching mechanism.

Claims

[Scope of utility model registration request]

In a printer that can selectively use both continuous paper and single-sheet paper, and in which a tractor serving as a feeding means for continuous paper is arranged on the paper supply side with respect to the printing section, the continuous paper supply path and the single-sheet paper can be selectively used. a paper guide disposed at a connection with the paper supply passage and selectively switching between the two passages; a pinch roller pressed against a feed roller that conveys the printing paper;
A path switching cam for operating the paper guide, a tension switching cam for variably setting the pressure contact force of the pinch roller against the feed roller depending on the printing paper, and a driving means for operating both of these switching cams. A switching mechanism in a printer characterized by: