JPH0261642U

JPH0261642U -

Info

Publication number: JPH0261642U
Application number: JP14113188U
Authority: JP
Priority date: 1988-10-31
Filing date: 1988-10-31
Publication date: 1990-05-08

Description

[Brief explanation of drawings]

第１図は本案の実施例のブロツク図、第２図は
文字信号と圧力検出信号の関係を示すタイムチヤ
ート図、第３図は圧力検出信号とセンサー信号の
関係を示すタイムチヤート図、第４図は圧力制御
のフロー図（ＰＡＤ図）、第５図は被印字物セン
サ入力時のフロー図（ＰＡＤ図）である。１……ノズル、２……帯電々極、３……インク
粒子、４ａ……偏向電極、４ｂ……偏向電極
、５……高圧電源、６……ガター、７ａ……荷
電検知器、７ｂ……荷電検知器、９……ビデオ
信号回路、１０……ビデオＡＭＰ、１１……計時
カウンタ、１２……センサＡＭＰ、１３……フイ
ルター回路、１４……２値化回路、１５……ＭＰ
Ｕ、１６……ＲＯＭ、１７……ＲＡＭ、１８……
入出力回路、１９……表示素子、２０……バスラ
イン、２１……付着インク、２２……被印字物、
２３……被印字物センサ、２４……励振ＡＭＰ、
２５……レギユレータ、２６……供給ポンプ、２
７……３方弁、２８……回収ポンプ、２９……溶
剤ポンプ、３０……レベルセンサ、３１……メイ
ンタンク、３２……サブタンク、３３……溶剤タ
ンク。 Figure 1 is a block diagram of an embodiment of the present invention, Figure 2 is a time chart showing the relationship between character signals and pressure detection signals, Figure 3 is a time chart showing the relationship between pressure detection signals and sensor signals, and Figure 4 is a time chart showing the relationship between pressure detection signals and sensor signals. The figure is a flowchart (PAD diagram) of pressure control, and FIG. 5 is a flowchart (PAD diagram) at the time of input from the printing object sensor. DESCRIPTION OF SYMBOLS 1... Nozzle, 2... Charged electrode, 3... Ink particle, 4a... Deflection electrode, 4b... Deflection electrode, 5... High voltage power supply, 6... Gutter, 7a... Charge detector, 7b... ... Charge detector, 9 ... Video signal circuit, 10 ... Video AMP, 11 ... Time counter, 12 ... Sensor AMP, 13 ... Filter circuit, 14 ... Binarization circuit, 15 ... MP
U, 16...ROM, 17...RAM, 18...
Input/output circuit, 19... Display element, 20... Bus line, 21... Adhesive ink, 22... Printed object,
23...printed object sensor, 24...excitation AMP,
25...regulator, 26...supply pump, 2
7... Three-way valve, 28... Recovery pump, 29... Solvent pump, 30... Level sensor, 31... Main tank, 32... Sub tank, 33... Solvent tank.

Claims

[Scope of utility model registration request]

Supply pressurized ink to the nozzle at a constant pressure,
The nozzle is excited with an excitation voltage having a constant number of cycles, the ink ejected from the nozzle is regularly atomized in synchronization with the frequency, and charged electrodes are arranged near the ink atomization, and the ink is In an inkjet printer that applies a charging signal to the charged electrodes in synchronization with the timing at which particles are generated, giving the ink particles an electric charge proportional to the charging signal, and controlling the deflection of the charged particles, pressure is applied to the charged electrodes. means for applying a detection signal, a timer for starting time measurement in synchronization with the timing of applying the pressure detection signal, and a position a certain distance away from the charged electrodes;
Charge detection means for detecting ink particles charged with a pressure detection signal; and means for stopping the timekeeping function of the timekeeping means at the instant when the charge detection means detects an ink droplet charged with the pressure detection signal. , a means for converting the value measured by the timer function into a numerical value corresponding to the ink pressure and displaying it, a pressure control means that operates so that the detected pressure always remains at a certain constant value, and a means for converting the value measured by the timer function into a numerical value corresponding to the ink pressure, a pressure control means that operates so that the detected pressure always remains at a certain constant value, and a means for converting the value measured by the timer function into a numerical value corresponding to the ink pressure, and a means for controlling the pressure so that the detected pressure always remains at a certain constant value. An inkjet recording device comprising means for counting particles, means for replenishing new ink corresponding to the number of consumed ink particles at regular intervals, and means for replenishing solvent volatilized in the air. Device.