US 4,053,900 A · Electrographic printer recording medium loading assembly

Abstract

A recording medium drive roller and a wrap roller are mounted to a cover for an electrographic printer and cooperate to enable the recording medium to be easily loaded into the printer when the cover is open, and to provide proper tension to the paper when the cover is closed to permit uniform and aligned feeding of the recording medium from the source during operation of the printer.

Drawings

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Drawings

Claims10

Dependent claims

An electrographic printer recording medium loading assembly, comprising:

an electrographic printer cover structurally defining a ramp member;
a drive roller mounted to the printer cover;
a length of recording medium disposable to tangentially approach and engage the drive roller and be driven thereby;
a wrap roller bearing against and movable along the ramp member having first and second roller positions for cooperatively engaging the recording medium with the drive roller, the first and second roller positions being disposed in an arcuate path about the periphery of the drive roller;
and
at least one extension spring extending between the printer cover and the wrap roller to bias the wrap roller against the ramp member and against the recording medium engaging the drive roller.

3 more elements

Dependencies are inferred from the claim text.

Description2,023 words

Summary207 words

#1. Field of the Invention

#This invention relates to an electrographic recorder cover assembly which includes a recording medium loading device, and particularly to a recording medium drive roller and wrap roller which cooperate to facilitate loading the recording medium into the electrographic printer.

#2. Description of the Prior Art

Brief description of the drawings3 figures

#FIG. 1 is a partial perspective view of an electrographic printer with the cover in the open position showing the printing station and the paper loading surface according to the principles of this invention;

#FIG. 2 is a sectional view taken along line 2--2 of FIG. 1; and

#FIG. 3 is a sectional view similar to FIG. 2 showing the cover of the electrographic printer in a closed and operative position.

Detailed description1,745 words

#An electrographic printer 10 is shown in FIG. 1 which consists, essentially, of a main body or base portion 12 and a cover assembly 14. The cover assembly 14 is pivotally engaged to the main body portion 12 about an axis 16 and is pivotable thereabout from a first, or open, position to a second, or closed, position in readiness for printer operation.

#A segment electrode assembly 18 is pivotally mounted in the cover member 14 about axis pin 20, as best seen in FIGS. 2 and 3, and is essentially comprised of a rigid mounting board 22, a printed circuit driver board 24 mounted thereto and a plurality of segment electrode units 26 which are engaged to the driver board 24 and extend outwardly thereform. The illustrated and disclosed segment electrode assembly of concurrently filed and copending patent application Ser. No. 673,029 entitled "Electrographic Segment Electrode Clamping Assembly" is satisfactory for application to the present embodiment. The segment electrode units each comprise a plurality of fingers which are thin and quite flexible.

#When the cover 14 of the electrographic printer 10 is in an open position, as best seen in FIGS. 1 and 2, the segment electrode assembly 18, and specifically the driver board 24 of the segment electrode assembly 18, is held inward and, for example, against a stop surface 27 of a recessed plate 28 which is dictated by the force from a spring 30 extending from a mount 31 on the board 22 to a complementing mount 32 on the inside surface 33 of the cover 14. The plurality of segment electrode fingers 26 are, thus, disposed in a protective recessed area 34.

Facts

Application

05/673,033Filed 2 Apr 1976

Granted

11 Oct 1977

Term ended

11 Oct 1994

Estimated · how

Pre-1995 term; greater of 17 years from grant or 20 years from filing when eligible. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification3 codes

G01D 15/28
Component parts of recorders for measuring arrangements not specially adapted for a specific variable: holding means for recording surfaces;…
G01D 15/06
Component parts of recorders for measuring arrangements not specially adapted for a specific variable: electric recording elements, e.g. electrolytic
G01D
Measuring not specially adapted for a specific variable

Description2,023 words

Summary207 words

#1. Field of the Invention

#2. Description of the Prior Art

Brief description of the drawings3 figures

#FIG. 2 is a sectional view taken along line 2--2 of FIG. 1; and

#FIG. 3 is a sectional view similar to FIG. 2 showing the cover of the electrographic printer in a closed and operative position.

Detailed description1,745 words

Electrographic printer recording medium loading assembly

Life of this patent

Electrographic printer recording medium loading assembly

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims10

Description2,023 words

Drawings

Classification3 codes

Life of this patent

Description2,023 words