US4746796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corotron wire cassette for electrophotographic printer or copier devices
Assignee: Canon Production Printing Germany GmbH and Co KG
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Filing: 1986-10-20
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Granted: 1988-05-24
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Expires: 2006-10-20
Abstract
Abstract A corotron wire cassette including a supply reel seated therein for the acceptance of a wire-shaped electrode is interchangeably provided in a corona-generating means of an electrophotographic printer or copier device. The supply reel in the corotron wire cassette includes a restoring spring. The wire-shaped electrode is conducted via a deflection roller comprising felt rings secured thereon for cleaning the wire-shaped electrode. Connected to the wire-shaped electrode, a coupling clip is provided at the output of the corotron wire cassette, this coupling clip cooperating, in the inserted condition of the corotron wire cassette, with a holding element of a cleaning slide of the corona-generating means. Via an electro-motive means, a control device automatically pulls the wire-shaped electrode out of the cassette in accord with the preset paper width after the cassette is inserted. When a cleaning procedure is initiated, the cleaning slide is moved back and forth in its guide channel via the electro-motive means.
Inventors
- 👤 Karl Heigl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:14
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/02; G03G15/0258; G03G15/0291
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
35 words
A corona-generating means for an electrophotographic printer device comprising: a cassette releasably secured in a fixed position in a cassette receptacle of the printer device, a corotron wire electrode retractably mounted in said cassette, and
Claim 2
Dependent Claim
35 words
A corona-generating means for an electrophotographic printer device comprising: a cassette releasably secured in a fixed position in a cassette receptacle of the printer device, a corotron wire electrode retractably mounted in said cassette, and
Claim 3
Dependent Claim
39 words
said electrode including end means for selectively engaging with a movable means in said printer device wherein said electrode is withdrawable from said cassette into a work position, and retractable into said cassette for selective replacement of said cassette.
Claim 4
Dependent Claim
39 words
said electrode including end means for selectively engaging with a movable means in said printer device wherein said electrode is withdrawable from said cassette into a work position, and retractable into said cassette for selective replacement of said cassette.
Claim 5
Dependent Claim
32 words
A corona-generating means according to claim 1, wherein a supply reel accepting said electrode is mounted in said cassette, said supply reel cooperating with a restoring means automatically winding up the electrode.
Claim 6
Dependent Claim
26 words
A corona-generating means according to claim 2, wherein said restoring means comprises a spring element attaching at said supply reel as a mechanical energy storage device.
Claim 7
Dependent Claim
17 words
A corona-generating means according to claim 1, wherein said cassette includes a cleaning device for said electrode.
Claim 8
Dependent Claim
20 words
A corona-generating means according to claim 1, wherein said electrode is led over a deflection roller comprising a cleaning felt.
Claim 9
Dependent Claim
26 words
A corona-generating means according to claim 4, wherein said electrode is conducted between two felt rings which form at least a part of said cleaning device.
Claim 10
Dependent Claim
41 words
A corona-generating means according to claim 1, wherein said cassette includes an open recess exposing a portion of said electrode, said recess being in alignment with a wiper contact of the printer device to permit said contact to contact said electrode.
Claim 11
Dependent Claim
17 words
A corona-generating means according to claim 13, wherein said cassette is manufactured of an electrically insulating material.
Claim 12
Dependent Claim
43 words
A corona-generating means according to claim 1, wherein said corona-generating means includes an adjustment means connected to said movable means which enables said electrode to be withdrawn from said cassette to a prescribed length dependent on a width of paper to be processed.
Claim 13
Dependent Claim
21 words
A corona-generating means according to claim 9, wherein said adjustment means comprises an electro-motive drive means connected to said movable means.
Claim 14
Dependent Claim
34 words
A corona-generating means according to claim 10, wherein said movable means is mounted on a cleaning element movable via said electro-motive drive means through a region of the corona means which accepts said electrode.
Claim 15
Dependent Claim
36 words
A corona-generating means according to claim 10, wherein said end means of said elctrode is connected to a coupling clip for the acceptance of said movable means, said coupling clip being seated withdrawable from said cassette.
Claim 16
Dependent Claim
79 words
A corona-generating means for an electrophotographic printer device comprising: a cassette to be releasably secured in a cassette receptacle of the printer device, a corotron wire electrode mounted in said cassette with a coupling means secured at a free end of said electrode and normally positioned in a guide portion of said cassette by means of which said electrode is withdrawable from said cassette into a work position and retractable into said cassette for selective replacement of said cassette.
Claim 17
Dependent Claim
79 words
A corona-generating means for an electrophotographic printer device comprising: a cassette to be releasably secured in a cassette receptacle of the printer device, a corotron wire electrode mounted in said cassette with a coupling means secured at a free end of said electrode and normally positioned in a guide portion of said cassette by means of which said electrode is withdrawable from said cassette into a work position and retractable into said cassette for selective replacement of said cassette.
Claim 18
Dependent Claim
32 words
A corona-generating means according to claim 13, wherein a supply reel accepting said electrode is mounted in said cassette, said supply reel cooperating with a restoring means automatically winding up the electrode.
Claim 19
Dependent Claim
26 words
A corona-generating means according to claim 14, wherein said restoring means comprises a spring element attaching at said supply reel as a mechanical energy storage device.
Claim 20
Dependent Claim
17 words
A corona-generating means according to claim 13, whererin said cassette includes a cleaning device from said electrode.
Claim 21
Dependent Claim
20 words
A corona-generating means according to claim 13, wherein said electrode is led over a deflection roller comprising a cleaning felt.
Claim 22
Dependent Claim
26 words
A corona-generating means according to claim 16, wherein said electrode is conducted between two felt rings which form at least a part of said cleaning device.
Claim 23
Dependent Claim
33 words
A corona-generating means according to claim 13, wherein said cassette includes an open recess exposing a portion of said electrode to permit a wipe contact of said printer device to contact said electrode.
Claim 24
Dependent Claim
17 words
A corona-generating means according to claim 13, wherein said cassette is manufactured of an electrically insulating material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-24 | 1991-11-23 | 1992-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-24 | 1995-11-23 | 1996-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-24 | 1999-11-23 | 2000-05-24 | $7700.00 | Window Closed / Lapsed |