Patent EP0073578A2 successfully refreshed from Google Patents.
EP0073578A2
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EP
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Paper feeding device for use with a printer
Assignee: Seiko Epson Corp
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Filing: 1982-08-05
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Granted: —
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Expires: 2002-08-05
Abstract
Abstract A paper feeding device for use with a printer; said device comprising a rotatable cylindrical platen (35); presser roller means (56, 57) movable into and out of an operative position in which an unapertured sheet (61) of paper can be pressed thereby into engagement with the platen (35) for movement around the latter when the platen (35) is rotated; and two spaced apart paper feeding means (31,32) provided with means (31a, 31b) engageable in holes in an apertured sheet (51) of paper and operable to move the latter around the platen (35) when the presser roller means (56, 57) are out of the operative position; characterised in that two spaced apart paper guide members (36, 37) are interposed between the two paper feeding means (31, 32), each paper guide member (36, 37) having a first guide portion (36-4) for guiding thereover the apertured sheet (51) which has been moved around the platen (35) by the paper feeding means (31, 32), and second and third guide portions (36-5, 36-6) which respectively serve as an entrance path and an exit path for the said unapertured sheet (61) when the latter is introduced into position around the plate (35).
Inventors
- 👤 Hiroyuki Akazawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 17:02
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/48; B41J13/00; B41J13/10; B41J13/103; B41J13/26; B41J13/30
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
188 words
A paper feeding device for use with a printer, said device comprising a rotatable cylindrical platen (35); presser roller means (56,57) movable into and out of an operative position in which an unapertured sheet (61) of paper can be pressed thereby into engagement with the platen (35)for movement around the latter when the platen (35) is rotated; and two spaced apart paper feeding means (31,32) provided with means (31a,31b) engageable in holes in an apertured sheet (51) of paper and operable to move the latter around the platen (35) when the presser roller means (56,57) are out of the operative position; characterised in that two spaced apart paper guide members (36,37) are interposed between the two paper feeding means (31,32), each paper guide member (36,37) having a first guide portion (36-4) for guiding thereover the apertured sheet (51) which has been moved around the platen (35) by the paper feeding means (31,32), and second and third guide portions (36-5, 36-6) which respectively serve as an entrance path and an exit path for the said unapertured sheet (61) when the latter is introduced into position around the platen (35).
Claim 2
Dependent Claim
188 words
A paper feeding device for use with a printer, said device comprising a rotatable cylindrical platen (35); presser roller means (56,57) movable into and out of an operative position in which an unapertured sheet (61) of paper can be pressed thereby into engagement with the platen (35)for movement around the latter when the platen (35) is rotated; and two spaced apart paper feeding means (31,32) provided with means (31a,31b) engageable in holes in an apertured sheet (51) of paper and operable to move the latter around the platen (35) when the presser roller means (56,57) are out of the operative position; characterised in that two spaced apart paper guide members (36,37) are interposed between the two paper feeding means (31,32), each paper guide member (36,37) having a first guide portion (36-4) for guiding thereover the apertured sheet (51) which has been moved around the platen (35) by the paper feeding means (31,32), and second and third guide portions (36-5, 36-6) which respectively serve as an entrance path and an exit path for the said unapertured sheet (61) when the latter is introduced into position around the platen (35).
Claim 3
Dependent Claim
57 words
A device as claimed in claim 1 characterised in that each paper guide member (36,37) has a guide wall (36-2, 36-3) for guiding a respective edge of the said unapertured sheet (61), the paper guide members (36,37) being positionable in use so that the guide walls (36-2, 36-3) engage opposite edges of the said unapertured sheet (61).
Claim 4
Dependent Claim
38 words
. 3. A device as claimed in claim 2 characterised in that the first guide portion (36-4) of each paper guide member (36,37) is constituted by an arcuate peripheral portion (36-4) of the respective guide wall (36-2, 36-3).
Claim 5
Dependent Claim
54 words
A device as claimed in claim 3 characterised in that the guide wall (36-2, 36-3) of each paper guide member (36,37) extends outwardly of a wall member (43) which forms part of the respective paper guide member (36,37), the wall member (43) having a peripheral surface (36-6) which constitutes the said third guide portion.
Claim 6
Independent Claim
26 words
A device as claimed in any preceding claim characterised in that each paper guide member (36,37) has a slot (36-5) which constitutes the second guide portion.
Claim 7
Dependent Claim
41 words
A device as claimed in claim 4 and in claim 5 in which each paper guide member (36,37) has a second wall member (44) which is spaced from the first-mentioned wall member (43) so as to form the said slot (36-5).
Claim 8
Independent Claim
31 words
A device as claimed in any preceding claim characterised in that the paper feeding means (31,32) and the paper guide members (36,37) are mounted on a common guide shaft (34) .
Claim 9
Dependent Claim
29 words
A device as claimed in claim 7 characterised in that lock means (38,39) are provided for releasably locking each paper guide member (36,37) to the said guide shaft (34).
Claim 10
Dependent Claim
100 words
A device as claimed in claim 8 characterised in that each said lock means (38,39) comprises a lock member (38,39) which is carried by the respective paper guide member (36,37) and which is axially slidable along the said guide shaft (34), the lock member (38-39) being rotatable on said guide shaft (34) into and out of a locking position, there being a spring (42) which engages the lock member (38,39) when the latter is in the locking position so as to frictionally force the lock member (38,39) against the guide shaft (34) to prevent axial movement of the lock member.
Claim 11
Dependent Claim
17 words
A printer characterised by being provided with a paper feeding device as claimed in any preceding claim.
References Cited (Backward Citations)
No citation records indexed.
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