GB1318895A - Device for measuring developability - Google Patents
Device for measuring developabilityInfo
- Publication number
- GB1318895A GB1318895A GB4878270A GB4878270A GB1318895A GB 1318895 A GB1318895 A GB 1318895A GB 4878270 A GB4878270 A GB 4878270A GB 4878270 A GB4878270 A GB 4878270A GB 1318895 A GB1318895 A GB 1318895A
- Authority
- GB
- United Kingdom
- Prior art keywords
- toner
- concentration
- dispenser
- oct
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
- G03G15/0849—Detection or control means for the developer concentration
- G03G15/0855—Detection or control means for the developer concentration the concentration being measured by optical means
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/55—Self-diagnostics; Malfunction or lifetime display
- G03G15/553—Monitoring or warning means for exhaustion or lifetime end of consumables, e.g. indication of insufficient copy sheet quantity for a job
- G03G15/556—Monitoring or warning means for exhaustion or lifetime end of consumables, e.g. indication of insufficient copy sheet quantity for a job for toner consumption, e.g. pixel counting, toner coverage detection or toner density measurement
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S222/00—Dispensing
- Y10S222/01—Xerography
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/166—Toner containing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
- Wet Developing In Electrophotography (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Control Or Security For Electrophotography (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
1318895 Electro-photography XEROX CORP 14 Oct 1970 [17 Oct 1969] 48782/70 Heading G2H In a process for recycling a solid toner/ carrier mixture to a xerographic development zone (the toner being replenished from a dispenser when its concentration falls below a predetermined threshhold value), a portion of the mixture bypasses the zone through a device 40 for measuring the concentration of the toner, the device comprising a spaced pair of transparent electrode plates 48 and 50 of alternating polarity (e. g. each second), a lamp L1, and a photo-cell P1, the output of which is dependent on the concentration of toner. When the concentration reaches the threshhold value, the toner dispenser is automatically actuated. If the dispenser is empty, the xerographic machine may be automatically shut down when a predetermined lower concentration of toner is reached.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US86720869A | 1969-10-17 | 1969-10-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1318895A true GB1318895A (en) | 1973-05-31 |
Family
ID=25349342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4878270A Expired GB1318895A (en) | 1969-10-17 | 1970-10-14 | Device for measuring developability |
Country Status (15)
Country | Link |
---|---|
US (1) | US3727065A (en) |
JP (1) | JPS508938B1 (en) |
BE (1) | BE757430A (en) |
CA (1) | CA934806A (en) |
CH (1) | CH514168A (en) |
CS (1) | CS169811B2 (en) |
DE (1) | DE2050021C3 (en) |
ES (1) | ES384593A1 (en) |
FR (1) | FR2066411A5 (en) |
GB (1) | GB1318895A (en) |
GT (1) | GT197017976A (en) |
NL (1) | NL166807C (en) |
PL (1) | PL81051B1 (en) |
SE (1) | SE369114B (en) |
SU (1) | SU597347A3 (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7210357A (en) * | 1971-08-06 | 1973-02-08 | ||
US3791744A (en) * | 1972-02-22 | 1974-02-12 | Dyk Res Corp Van | Xerographic toner concentration measuring apparatus and method |
JPS5925220B2 (en) * | 1973-07-26 | 1984-06-15 | 株式会社リコー | Toner remaining amount detection device for electrophotographic dry developing device |
US3872825A (en) * | 1973-08-06 | 1975-03-25 | Xerox Corp | Particle concentration detector |
JPS5092180A (en) * | 1973-12-14 | 1975-07-23 | ||
US3926145A (en) * | 1974-03-04 | 1975-12-16 | Honeywell Inf Systems | Toner concentration detector |
JPS51140296A (en) * | 1975-05-30 | 1976-12-03 | Seiko Seiki Co Ltd | Apparatus for compensating for wearing down of grindstone of grinding machine |
US4043293A (en) * | 1976-05-03 | 1977-08-23 | Xerox Corporation | Developability regulating apparatus |
US4111151A (en) * | 1977-05-19 | 1978-09-05 | Xerox Corporation | Multi-particle developability regulating system |
US4078520A (en) * | 1977-06-02 | 1978-03-14 | Xerox Corporation | Vibrating screen filter for toner density measuring apparatus |
DE2927477C2 (en) * | 1978-07-08 | 1982-03-11 | Ricoh Co., Ltd., Tokyo | Apparatus and method for measuring the developability of a powdered developer for electrostatography |
US4346985A (en) * | 1979-06-25 | 1982-08-31 | Xerox Corporation | Automatic development control |
US4431300A (en) * | 1982-02-16 | 1984-02-14 | Xerox Corporation | Automatic developability sensing in electrophotographic printing |
JPS58159551U (en) * | 1982-04-20 | 1983-10-24 | オリンパス光学工業株式会社 | Toner concentration detection device |
US4662313A (en) * | 1985-10-23 | 1987-05-05 | Xerox Corporation | Image density controller |
US5426486A (en) * | 1994-02-22 | 1995-06-20 | Eastman Kodak Company | Toner monitor having magnetic field control |
JP2842330B2 (en) * | 1995-09-21 | 1999-01-06 | 日本電気株式会社 | Electrostatic inkjet recording device |
CN100504654C (en) * | 2002-06-03 | 2009-06-24 | 株式会社理光 | Color tone agent conveying equipment and image forming equipment |
JP6004799B2 (en) * | 2012-07-10 | 2016-10-12 | キヤノン株式会社 | Developer container and image forming apparatus |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3094049A (en) * | 1961-02-03 | 1963-06-18 | Xerox Corp | Xerographic developer measuring apparatus |
US3233781A (en) * | 1963-05-08 | 1966-02-08 | Savin Business Machines Corp | Toner control system |
US3376854A (en) * | 1966-06-01 | 1968-04-09 | Xerox Corp | Automatic toner dispensing control |
US3399652A (en) * | 1967-06-14 | 1968-09-03 | Addressograph Multigraph | Automatic toner concentrate detector |
US3526338A (en) * | 1968-01-02 | 1970-09-01 | Xerox Corp | Method and controller for dispensing electroscopic material |
US3430606A (en) * | 1968-01-02 | 1969-03-04 | Xerox Corp | Electroscopic particle sensor |
-
0
- BE BE757430D patent/BE757430A/en unknown
-
1969
- 1969-10-17 US US00867208A patent/US3727065A/en not_active Expired - Lifetime
-
1970
- 1970-05-22 CA CA083464A patent/CA934806A/en not_active Expired
- 1970-08-03 JP JP45067956A patent/JPS508938B1/ja active Pending
- 1970-09-24 GT GT197017976A patent/GT197017976A/en unknown
- 1970-10-12 DE DE2050021A patent/DE2050021C3/en not_active Expired
- 1970-10-12 NL NL7014901.A patent/NL166807C/en not_active IP Right Cessation
- 1970-10-12 SE SE13807/70A patent/SE369114B/xx unknown
- 1970-10-14 GB GB4878270A patent/GB1318895A/en not_active Expired
- 1970-10-14 SU SU701483939A patent/SU597347A3/en active
- 1970-10-15 PL PL1970143919A patent/PL81051B1/pl unknown
- 1970-10-15 CH CH1529170A patent/CH514168A/en not_active IP Right Cessation
- 1970-10-16 ES ES384593A patent/ES384593A1/en not_active Expired
- 1970-10-16 FR FR7038235A patent/FR2066411A5/fr not_active Expired
- 1970-10-16 CS CS6999A patent/CS169811B2/cs unknown
Also Published As
Publication number | Publication date |
---|---|
SU597347A3 (en) | 1978-03-05 |
BE757430A (en) | 1971-04-13 |
ES384593A1 (en) | 1973-01-16 |
GT197017976A (en) | 1972-03-17 |
FR2066411A5 (en) | 1971-08-06 |
US3727065A (en) | 1973-04-10 |
PL81051B1 (en) | 1975-08-30 |
SE369114B (en) | 1974-08-05 |
CA934806A (en) | 1973-10-02 |
CH514168A (en) | 1971-10-15 |
DE2050021A1 (en) | 1971-04-29 |
DE2050021C3 (en) | 1978-12-21 |
CS169811B2 (en) | 1976-07-29 |
NL166807C (en) | 1981-09-15 |
JPS508938B1 (en) | 1975-04-08 |
NL166807B (en) | 1981-04-15 |
DE2050021B2 (en) | 1978-05-03 |
NL7014901A (en) | 1971-04-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |