JPS5658879A - Compensator for charge amount in ink jet printer - Google Patents
Compensator for charge amount in ink jet printerInfo
- Publication number
- JPS5658879A JPS5658879A JP13539079A JP13539079A JPS5658879A JP S5658879 A JPS5658879 A JP S5658879A JP 13539079 A JP13539079 A JP 13539079A JP 13539079 A JP13539079 A JP 13539079A JP S5658879 A JPS5658879 A JP S5658879A
- Authority
- JP
- Japan
- Prior art keywords
- ink droplets
- droplets
- rom33
- read
- charged
- 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
- B41J2/12—Ink jet characterised by jet control testing or correcting charge or deflection
Abstract
PURPOSE:To provide proper amounts of charge for ink droplets by a method wherein the charging voltages according to the amounts of charge of the ink droplets jetted precedingly and followingly to the ink droplets to be charged are prememorized, and the ink droplets are charged by using the signal read at the time of charging operation. CONSTITUTION:A plurality of proper charging voltages precalculated from the combinations of the presence and absence of charges on the preceding and following ink droplets are memorized in a read-only memory (ROM) 33 for every row of dots in the deflecting direction. Then the printing information is memorized in a buffer memory 6 through an interface 5. On the other hand, while a shift register 31 storing the presence and absence of charges on the droplets is being shifted by a timing signal generator 7, the information of whether the preceding and following droplets are charged droplets or not is fed to the ROM33. Simultaneously, the desired digital signal is read from the ROM33 while accessing the addresses in the ROM33 through a bare-Ncounter 32. The digital signal read from the ROM33 is converted into an analong quantity by a digital-to-analog converter 34 and impressed on the charging electrode 4 through an amplifier 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13539079A JPS5658879A (en) | 1979-10-20 | 1979-10-20 | Compensator for charge amount in ink jet printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13539079A JPS5658879A (en) | 1979-10-20 | 1979-10-20 | Compensator for charge amount in ink jet printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5658879A true JPS5658879A (en) | 1981-05-22 |
Family
ID=15150580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13539079A Pending JPS5658879A (en) | 1979-10-20 | 1979-10-20 | Compensator for charge amount in ink jet printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5658879A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002368391A (en) * | 2001-06-05 | 2002-12-20 | Sony Corp | Wiring board, electronic apparatus and method for mounting electronic component |
-
1979
- 1979-10-20 JP JP13539079A patent/JPS5658879A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002368391A (en) * | 2001-06-05 | 2002-12-20 | Sony Corp | Wiring board, electronic apparatus and method for mounting electronic component |
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