JPS55148176A - Charged phase detector of ink jet printing unit - Google Patents
Charged phase detector of ink jet printing unitInfo
- Publication number
- JPS55148176A JPS55148176A JP5635379A JP5635379A JPS55148176A JP S55148176 A JPS55148176 A JP S55148176A JP 5635379 A JP5635379 A JP 5635379A JP 5635379 A JP5635379 A JP 5635379A JP S55148176 A JPS55148176 A JP S55148176A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- charged
- ink jet
- printing unit
- jet printing
- 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
- B41J2/115—Ink jet characterised by jet control synchronising the droplet separation and charging time
Abstract
PURPOSE:To find the propriety of a charged phase accurately by a system wherein an electric closed loop is forming by using a charged signal generating circuit of an ink jet printing unit and by providing the equivalent circuit having a constant equivalent to the circuit under the standard condition of the circuit thereof to compare the current wave forms of both circuits. CONSTITUTION:A closed loop circuit comprises the ink liquid column 13 injected from the head 1 of an ink jet printing unit, the ink jet particles 14 separated from the ink liquid column 13 thereof, a charged electrode 5 and a charged signal generating circuit 4 generating the signal charging the ink jet particle 14. Separately, the equivalent circuit having a constant equivalent to the circuit under the standard condition of said electric closed loop circuit by a resister R2, an electrostatic capacitor C1 and a resister R3 is provided to allow the wave form of the charged current of both circuits to compare by a differential amplifier 15. This enables to minimize the effect caused by mechanical vibration to find the propriety of the charged phase easily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5635379A JPS55148176A (en) | 1979-05-10 | 1979-05-10 | Charged phase detector of ink jet printing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5635379A JPS55148176A (en) | 1979-05-10 | 1979-05-10 | Charged phase detector of ink jet printing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55148176A true JPS55148176A (en) | 1980-11-18 |
Family
ID=13024861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5635379A Pending JPS55148176A (en) | 1979-05-10 | 1979-05-10 | Charged phase detector of ink jet printing unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55148176A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59214661A (en) * | 1983-05-20 | 1984-12-04 | Hitachi Ltd | Ink jet recorder |
| JPS609758A (en) * | 1983-06-29 | 1985-01-18 | Fujitsu Ltd | Ink jet recorder |
-
1979
- 1979-05-10 JP JP5635379A patent/JPS55148176A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59214661A (en) * | 1983-05-20 | 1984-12-04 | Hitachi Ltd | Ink jet recorder |
| JPH0331143B2 (en) * | 1983-05-20 | 1991-05-02 | Hitachi Seisakusho Kk | |
| JPS609758A (en) * | 1983-06-29 | 1985-01-18 | Fujitsu Ltd | Ink jet recorder |
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