JPS5670971A - Detector for deflection of charged ink droplet - Google Patents
Detector for deflection of charged ink dropletInfo
- Publication number
- JPS5670971A JPS5670971A JP14692679A JP14692679A JPS5670971A JP S5670971 A JPS5670971 A JP S5670971A JP 14692679 A JP14692679 A JP 14692679A JP 14692679 A JP14692679 A JP 14692679A JP S5670971 A JPS5670971 A JP S5670971A
- Authority
- JP
- Japan
- Prior art keywords
- electrodes
- charged ink
- ink droplets
- processing circuit
- ink droplet
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/07—Ink jet characterised by jet control
- B41J2/125—Sensors, e.g. deflection sensors
Landscapes
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
PURPOSE:To unnecessitate a time-calibrating circuit element by a method wherein charge-detecting electrodes of prescribed shapes are placed in a specified condition and connected to an electric processing circuit discriminating the deflection position through the comparison of two electrical input signals so that one charged ink droplet is detected simultaneously. CONSTITUTION:Between deflecting electrodes 7 and a gutter 9, the two charge- detecting electrodes 10a and 10b are placed on the opposite sides of a plane containing the paths (single-dotted lines) of deflected ink droplets and are connected to the electric processing circuit 14. Positively charged ink droplets are generated during a phase-retrieving operation, while negatively charged ink droplets are generated during a recording operation and they pass through the gap between the electrodes 10a, 10b. When the positively charged ink droplets pass through the gap between the electrodes 10a, 10b, the inputs and outputs S1-S7 of the circuit elements in the processing circuit 14 change. When the ink droplet flies along a reference path traversing both the electrodes 10a, 10b over the same length, both the outputs S5 and S6 remain at low levels so that whether or not the droplet is passing along the reference path can be discriminated on the basis of the output S7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14692679A JPS5670971A (en) | 1979-11-13 | 1979-11-13 | Detector for deflection of charged ink droplet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14692679A JPS5670971A (en) | 1979-11-13 | 1979-11-13 | Detector for deflection of charged ink droplet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5670971A true JPS5670971A (en) | 1981-06-13 |
Family
ID=15418690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14692679A Pending JPS5670971A (en) | 1979-11-13 | 1979-11-13 | Detector for deflection of charged ink droplet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5670971A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58168576A (en) * | 1982-03-15 | 1983-10-04 | ゼロツクス・コ−ポレ−シヨン | Method and device for detecting ink jet drip |
-
1979
- 1979-11-13 JP JP14692679A patent/JPS5670971A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58168576A (en) * | 1982-03-15 | 1983-10-04 | ゼロツクス・コ−ポレ−シヨン | Method and device for detecting ink jet drip |
| JPH0343987B2 (en) * | 1982-03-15 | 1991-07-04 | Xerox Corp |
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