JPS6377751U

JPS6377751U -

Info

Publication number: JPS6377751U
Application number: JP17149486U
Authority: JP
Priority date: 1986-11-07
Filing date: 1986-11-07
Publication date: 1988-05-23

Description

[Brief explanation of the drawing]

第１図はこの考案を具体化したプリンタの紙送
り装置において特に連続帳票の印字用紙の送り状
態を示す部分断面図、第２図は同じく単票の印字
用紙の送り状態を示す部分断面図、第３図は印字
用紙のリリース状態を示す部分断面図、第４図は
カム部材と従動部材及びローラ支持部材上の係合
突部との係合構成を拡大して示す部分断面図であ
る。１……プラテン、４……操作部材、１２……カ
ム部材、１２ａ，１２ｂ……カム面、１３……従
動部材、１６……ローラ支持部材、１８，１９…
…ローラ、２０……ばね部材としての引張ばね、
Ｐ１……連続帳票の印字用紙、Ｐ２……単票の印
字用紙。 FIG. 1 is a partial sectional view showing the feeding state of printing paper for continuous forms in a paper feeding device of a printer embodying this invention, and FIG. 2 is a partial sectional view showing the feeding state of printing paper for single sheets. FIG. 3 is a partial cross-sectional view showing the released state of the printing paper, and FIG. 4 is a partial cross-sectional view showing an enlarged engagement configuration between the cam member, the driven member, and the engaging protrusion on the roller support member. DESCRIPTION OF SYMBOLS 1...Platen, 4...Operation member, 12...Cam member, 12a, 12b...Cam surface, 13...Followed member, 16...Roller support member, 18, 19...
...Roller, 20...Tension spring as a spring member,
P1...printing paper for continuous forms, P2...printing paper for single forms.

Claims

[Claims for Utility Model Registration] A platen 1 for supporting printing sheets P1 and P2, a manually operable operating member 4, and a cam member 12 operably connected to the operating member 4.
a driven member 13 that engages with the cam surfaces 12a and 12b of the cam member 12; a roller 18 that is swingably supported by the driven member 13 and that feeds the paper in cooperation with the platen 1;
19 are provided at two locations in the front and back along the paper feeding direction, and a spring member 20 swings and urges the roller support member 16 in a direction in which the one roller 18 comes into contact with the outer peripheral surface of the platen 1. By operating the operating member 4, the cam surfaces 12a and 12b of the cam member 12 move the roller supporting member 16 via the driven member 13 to the third position where only one roller 18 is in contact with the outer peripheral surface of the platen 1. 1 position, a second position where both rollers 18 and 19 are in contact with the outer peripheral surface of platen 1, and a third position where both rollers 18 and 19 are spaced apart from the outer peripheral surface of platen 1. Paper feeding device for printers.