Browse Prior Art Database

Composite Fixed Styli/Roller Printhead Platen

IP.com Disclosure Number: IPCOM000045157D
Original Publication Date: 1983-Feb-01
Included in the Prior Art Database: 2005-Feb-06
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Related People

Halbeisen, RA: AUTHOR [+3]

Abstract

This article relates generally to strip chart recorders and more particularly to composite strip chart recorder platens which can be utilized with styli and thermal printheads.

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Composite Fixed Styli/Roller Printhead Platen

This article relates generally to strip chart recorders and more particularly to composite strip chart recorder platens which can be utilized with styli and thermal printheads.

In Fig. 1, a composite platen 1, consisting of a fixed styli segment 2 and a thermal printhead roller segment 3, is shown. Segment 2 acts as a surface against which strip chart paper and thermal styli bear while segment 3 provides a surface against which strip chart paper and a line of dots on a thermal printhead bear. Segment 2 is made of metal and is shown as a portion of a cylinder in Fig. 1 and has sufficient thickness so that end-caps 4 may be firmly attached to it by screws, for example. Segment 3 may be made of rubber or other resilient material or may be coated with such materials to provide a bearing surface suitable for the relative fragile printhead. Rollers 5 are mounted to end-caps 4 and are freely rotatable therein by means of axles 6 which are receivable in holes 7 in end-caps 4. The righthand end cap 4 has a bearing holder 8 fixed to it. Holder 8 has a bearing in it into which axle 9 is receivable.

Fig. 2 shows composite platen 1 mounted to a pair of supports 10 by means of screws 11 which mate with threaded holes 12 (Fig. 1) in left hand end-cap 4. The right-hand end of axle 9 is receivable in a bearing (not shown) in right-hand support 10 and is freely rotatable in it. Fig. 2 shows the juxtaposition of composite platen 1 with...