CA1039344A - Thermally insensitive particle concentration controller - Google Patents
Thermally insensitive particle concentration controllerInfo
- Publication number
- CA1039344A CA1039344A CA206,943A CA206943A CA1039344A CA 1039344 A CA1039344 A CA 1039344A CA 206943 A CA206943 A CA 206943A CA 1039344 A CA1039344 A CA 1039344A
- Authority
- CA
- Canada
- Prior art keywords
- operational amplifier
- recited
- circuit means
- photodiode
- toner particles
- 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
- 239000002245 particle Substances 0.000 title claims abstract description 58
- 239000000203 mixture Substances 0.000 claims description 27
- 238000004891 communication Methods 0.000 claims description 13
- 230000006854 communication Effects 0.000 claims description 12
- 238000011161 development Methods 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- 239000008187 granular material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 20
- 230000018109 developmental process Effects 0.000 description 10
- 238000012546 transfer Methods 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 7
- 239000000835 fiber Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008542 thermal sensitivity Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002311 subsequent effect Effects 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
- G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric 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
- G03G15/06—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
- G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
- G03G15/5033—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor
- G03G15/5041—Detecting a toner image, e.g. density, toner coverage, using a test patch
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Dry Development In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
- Color Electrophotography (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US413108A US3926338A (en) | 1973-11-05 | 1973-11-05 | Thermally insensitive particle concentration controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1039344A true CA1039344A (en) | 1978-09-26 |
Family
ID=23635864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA206,943A Expired CA1039344A (en) | 1973-11-05 | 1974-08-13 | Thermally insensitive particle concentration controller |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3926338A (enrdf_load_stackoverflow) |
| JP (1) | JPS5080143A (enrdf_load_stackoverflow) |
| CA (1) | CA1039344A (enrdf_load_stackoverflow) |
| DE (1) | DE2450145C3 (enrdf_load_stackoverflow) |
| FR (1) | FR2250150B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1477885A (enrdf_load_stackoverflow) |
| NL (1) | NL7413729A (enrdf_load_stackoverflow) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7604400A (nl) * | 1976-04-26 | 1977-10-28 | Oce Van Der Grinten Nv | Inrichting voor het ontwikkelen van een elektro- statisch ladingsbeeld. |
| JPS5420742A (en) * | 1977-07-15 | 1979-02-16 | Canon Inc | Concentration detecting method of developer |
| US4179213A (en) * | 1978-04-10 | 1979-12-18 | International Business Machines Corporation | Vector pinning in an electrophotographic machine |
| US4183657A (en) * | 1978-04-10 | 1980-01-15 | International Business Machines Corporation | Dynamic reference for an image quality control system |
| US4178095A (en) * | 1978-04-10 | 1979-12-11 | International Business Machines Corporation | Abnormally low reflectance photoconductor sensing system |
| US4372672A (en) * | 1980-12-22 | 1983-02-08 | International Business Machines Corporation | Self-triggering quality control sensor |
| KR20240055122A (ko) | 2021-09-13 | 2024-04-26 | 셰브론 필립스 케미컬 컴퍼니 엘피 | 올레핀 중합에서 사용하기 위한 촉매 시스템 성분의 하이드로사이클론 개질 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3376854A (en) * | 1966-06-01 | 1968-04-09 | Xerox Corp | Automatic toner dispensing control |
| US3470538A (en) * | 1966-12-28 | 1969-09-30 | Allegheny Ludlum Steel | Automatic start circuit for computer |
| US3399652A (en) * | 1967-06-14 | 1968-09-03 | Addressograph Multigraph | Automatic toner concentrate detector |
| US3487978A (en) * | 1967-06-14 | 1970-01-06 | Addressograph Multigraph | Automatic toner concentrate detector |
| BE793425A (fr) * | 1971-12-28 | 1973-06-28 | Xerox Corp | Procede et dispositif pour regler automatiquement le developpement d'images de couleurs |
| US3777173A (en) * | 1972-02-22 | 1973-12-04 | Dyke Res Van | Xerographic toner concentration measuring apparatus and method |
-
1973
- 1973-11-05 US US413108A patent/US3926338A/en not_active Expired - Lifetime
-
1974
- 1974-08-13 CA CA206,943A patent/CA1039344A/en not_active Expired
- 1974-09-04 FR FR7430025A patent/FR2250150B1/fr not_active Expired
- 1974-10-18 NL NL7413729A patent/NL7413729A/xx not_active Application Discontinuation
- 1974-10-22 DE DE2450145A patent/DE2450145C3/de not_active Expired
- 1974-10-28 GB GB4643474A patent/GB1477885A/en not_active Expired
- 1974-10-29 JP JP49124829A patent/JPS5080143A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL7413729A (nl) | 1975-01-31 |
| FR2250150A1 (enrdf_load_stackoverflow) | 1975-05-30 |
| GB1477885A (en) | 1977-06-29 |
| DE2450145A1 (de) | 1975-05-07 |
| JPS5080143A (enrdf_load_stackoverflow) | 1975-06-30 |
| US3926338A (en) | 1975-12-16 |
| FR2250150B1 (enrdf_load_stackoverflow) | 1977-11-04 |
| DE2450145B2 (de) | 1980-10-23 |
| DE2450145C3 (de) | 1981-09-17 |
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