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EP0113701A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Point of sale printer

Assignee: Olivetti SpA
•
Filing: 1984-01-10
•
Granted: —
•
Expires: 2004-01-10
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Abstract

Abstract A print head (15) on a carriage (16) slides on a guide bar (17) in front of a platen bar (18). A receipt slip (25) is fed from a roll (26) over part of the width of the platen bar (18) to a knife (40) for cutting off individual receipts, A daybook slip (45) is fed from a roll (46) over the bar (18) to a take-up roll (50). Other documents may be fed in for printing either downwardly between upper guides (37 and 38) or upwardly between lower guides (35 and 55). In either event the inserted document is engaged by a drive roller (60) and pressure roller (70) to be positioned at a predetermined height, under control of photodetectors (80 and 81). The pressure roller (70) is mounted between levers and can move away from the drive roller (60) to accommodate the thickness of the inserted document. The levers also support the carriage guide (17), whereby the head (15) is positioned a constant distance from the surface on which printing is effected.

Inventors

  • 👤 Franco Valle
  • 👤 Sergio Sofi

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 13:05
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/48; B41J11/54; B41J11/66; B41J11/70

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 113 words
A point of sale printer, comprising a printing head (15), and means (27, 63) for selectively and individually feeding each of a receipt slip and a daybook slip from a corresponding supply roll (26, 46) to the printing head, characterised by guide means (35, 55, 37, 38) for guiding other recording carriers upwardly or downwardly to the printing head (15), by means (70, 71, 72, 17) for maintaining the printing head (15) at a predetermined spacing from the recording carrier introduced, and by optical means (80, 81) arranged to detect an edge of the recording carrier introduced to position the same at a predetermined height from the print line of the printing head.
Claim 2
Dependent Claim 113 words
A point of sale printer, comprising a printing head (15), and means (27, 63) for selectively and individually feeding each of a receipt slip and a daybook slip from a corresponding supply roll (26, 46) to the printing head, characterised by guide means (35, 55, 37, 38) for guiding other recording carriers upwardly or downwardly to the printing head (15), by means (70, 71, 72, 17) for maintaining the printing head (15) at a predetermined spacing from the recording carrier introduced, and by optical means (80, 81) arranged to detect an edge of the recording carrier introduced to position the same at a predetermined height from the print line of the printing head.
Claim 3
Dependent Claim 34 words
A printer according to claim 1, characterised by a blade (40) controlled by an electric motor (41).for selectively cutting off the receipt slip (25) after it has been printed by the printing head (15).
Claim 4
Dependent Claim 102 words
A printer according to claim 1 or 2,. wherein the printing head (15) is mounted movably on a guide (17) parallel to a platen bar (18), characterised rotatably mounted, the roller also being parallel to the platen bar and being urged by a resilient member (74) towards at least one drive roller (60) whose axis is fixed with respect to the platen bar (18), whereby insertion of the recording carrier between the said two rollers (70, 60) causes the printing head (15) to be moved away .from the platen bar (18) by a distance equal to the thickness of the recording carrier.
Claim 5
Dependent Claim 28 words
A printer according.to claim 3, characterised in that guide means (37, 38; 35,55) and optical means (81;80) are disposed above and below the pair of rollers (60, 70).

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