EP0202129A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Feeding apparatus for printing medium
Assignee: Oki Electric Industry Co Ltd
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Filing: 1986-05-15
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Granted: —
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Expires: 2006-05-15
Abstract
Abstract Paper sheets (3) are fed from stack in sheet feed tray (13) past a detector (5) around a printing platen to a head ortopof form position (TOF) adjacent a print head (6). The TOF position is set by a button (27b) (Figure 2) which programs data into a first memory (RAM 20) (Figure 1). CPU 18 operates a drive motor (7) so that when the detector (5) detects the leading edge of a paper sheet, the motor 7 runs for an extent primarily determined by the data in memory (20) so that the sheet is moved to the TOF position. The system can be adjusted for frictional and other variables by programming into RAM 20 a correction data for correcting the data held in RAM 20. The correction data in RAM 20a can be incremented or decremented by concurrent use of TOF button 27b and either one of form feed and line feed buttons (27c,d).
Inventors
- 👤 Hiroshi Oki Elec. Ind. Co.Ltd. Kikuchi
- 👤 Jiro Oki Elec. Ind. Co. Ltd. Tanuma
- 👤 Takao Oki Elec. Ind. Co.Ltd. Uchida
- 👤 Akira Oki Elec. Ind. Co.Ltd. Nagumo
- 👤 Shyoichi Oki Elec. Ind. Co.Ltd. Watanabe
- 👤 Yukio Oki Elec. Ind. Co.Ltd. Ota
- 👤 Tadao Oki Elec. Ind. Co.Ltd. Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 17:29
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/10; B41J13/103; B41J11/00; B41J11/36; B41J11/42; B41J13/0009; B41J13/0018
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
52 words
- Printing medium feeding apparatus comprising a feeder (8) for feeding printing medium sheets individually to a preset position, and memory means (20) configured to receive data defining said preset position, characterised by means (20a,27) for selectively modifying said data so as to adjust the position to which the sheets are fed.
Claim 2
Dependent Claim
52 words
- Printing medium feeding apparatus comprising a feeder (8) for feeding printing medium sheets individually to a preset position, and memory means (20) configured to receive data defining said preset position, characterised by means (20a,27) for selectively modifying said data so as to adjust the position to which the sheets are fed.
Claim 3
Dependent Claim
63 words
Printing medium feeding apparatus according to claim 1 wherein said memory means (20) includes a first memory to receive data defining said preset position, and said modifying means (20a,27) includes a second memory to receive selectively changeable correction data defining a correction to be made to the data in the first memory such that the paper is correctly fed to the preset position.
Claim 4
Dependent Claim
42 words
Printing medium feeding apparatus according to claim 2 including user operable control means (27) operable in a first mode to define the data for the first memory (20) and operable in a second mode to define data for the second memory (20a)
Claim 5
Dependent Claim
64 words
Printing medium feeding apparatus according to claim 3 wherein said control means 27 includes a top of set button (27b) to define data for the first memory (20), a form feed button (FF -27c) and a line feed button (LF 27d), the line feed and form feed buttons being operable in said second mode to increment and decrement data in the second memory (20a)
Claim 6
Dependent Claim
36 words
Printing medium feeding apparatus according to claim 4 wherein said second mode is defined by concurrent operation of said top of form set button (27b) and either of said line feed and form feed buttons (27c,d).
Claim 7
Dependent Claim
27 words
Printing medium feeding apparatus according to any preceding claim wherein said Feeder (8) comprises a sheet feeder for feeding individual sheets of paper from a stack thereof.
Claim 8
Dependent Claim
12 words
A printer including printing medium feeding apparatus according to any preceding claim.
Claim 9
Dependent Claim
69 words
Apparatus according to any preceding claim wherein the sheet feeder (8) includes a path for the paper sheets, a detector (5) for detecting the leading edge of a paper sheet travelling along the path, a motor arrangement (7,15) for driving a sheet along the path, and means (18,20,2a) for driving the motor for an extent determined by said modified data upon detection of the sheet by the detector (5).
Claim 10
Dependent Claim
67 words
A paper feeding control system of an automatic paper feeder, said automatic paper feeder (18) being mounted on a printer for separating a printing medium one at a time from a paper feeding mechanism to feed said printing medium (13) to a platen of the printer, said paper feeding control system comprising: a setting means for enableing a position to head said printing medium to be reset.
Claim 11
Dependent Claim
67 words
A paper feeding control system of an automatic paper feeder, said automatic paper feeder (18) being mounted on a printer for separating a printing medium one at a time from a paper feeding mechanism to feed said printing medium (13) to a platen of the printer, said paper feeding control system comprising: a setting means for enableing a position to head said printing medium to be reset.
Claim 12
Dependent Claim
40 words
A paper feeding control system of an automatic paper feeder (8) according to claim 9 wherein said setting means is a read/write enable nonvolatile memory (20a) for holding a reset value of said heading position of the printing medium (13).
References Cited (Backward Citations)
US4273456A
Cited
US4362409A
Cited
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