Patent US5822646A successfully refreshed from Google Patents.
US5822646A
Expired / Lapsed
US
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Image forming apparatus
Assignee: Canon Inc
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Filing: 1997-07-25
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Granted: 1998-10-13
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Expires: 2017-07-25
Abstract
Abstract An image forming apparatus has an image bearing member, image forming device for forming a developer image on the image bearing member, cleaning device for cleaning the image bearing member, a container for containing therein the developer removed from the image bearing member, life detecting device for detecting the life of a consumptive part in the apparatus, fullness detecting device for detecting whether the quantity of the developer in the container has reached a predetermined quantity, operation stopping device for stopping the operation of the image forming device at predetermined time, and releasing device for releasing the stoppage of the operation of the image forming device.
Inventors
- 👤 Masahide Kinoshita
- 👤 Jun Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:39
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/55; G03G15/553; G03G15/556; G03G21/00; G03G21/10; G03G21/12; G03G2221/00; G03G2221/16; G03G2221/1663; G03G2221/18; G03G2221/183
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
165 words
An image forming apparatus comprising: an image bearing member; image forming means for forming a developer image on said image bearing member; cleaning means for cleaning said image bearing member; a container for containing therein a developer removed from said image bearing member; life detecting means for detecting a life of a consumptive part of said apparatus; fullness detecting means for detecting whether a quantity of the developer in said container has reached a predetermined quantity or not; operation stopping means for stopping the operation of said image forming means when it receives a detection signal of said life detecting means or a detection signal of said fullness detecting means; and releasing means for releasing a stoppage of the operation of said image forming means, said releasing means receiving a releasing signal when the operation is stopped by the detection signal of said life detecting means, and rejecting the releasing signal when the operation is stopped by the detection signal of said fullness detecting means.
Claim 2
Dependent Claim
165 words
An image forming apparatus comprising: an image bearing member; image forming means for forming a developer image on said image bearing member; cleaning means for cleaning said image bearing member; a container for containing therein a developer removed from said image bearing member; life detecting means for detecting a life of a consumptive part of said apparatus; fullness detecting means for detecting whether a quantity of the developer in said container has reached a predetermined quantity or not; operation stopping means for stopping the operation of said image forming means when it receives a detection signal of said life detecting means or a detection signal of said fullness detecting means; and releasing means for releasing a stoppage of the operation of said image forming means, said releasing means receiving a releasing signal when the operation is stopped by the detection signal of said life detecting means, and rejecting the releasing signal when the operation is stopped by the detection signal of said fullness detecting means.
Claim 3
Dependent Claim
17 words
An image forming apparatus according to claim 1, wherein said consumptive part is said image bearing member.
Claim 4
Dependent Claim
27 words
An image forming apparatus according to claim 1, wherein said image bearing member and said container are made into a unit to be removable from said apparatus.
References Cited (Backward Citations)
US5500716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-10-12 | 2002-04-13 | 2002-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-10-12 | 2006-04-13 | 2006-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-10-12 | 2010-04-13 | 2010-10-13 | $7700.00 | Window Closed / Lapsed |