CN1332812C - Identification circuit of ink jet printing head and its method - Google Patents

Identification circuit of ink jet printing head and its method Download PDF

Info

Publication number
CN1332812C
CN1332812C CNB2004100036508A CN200410003650A CN1332812C CN 1332812 C CN1332812 C CN 1332812C CN B2004100036508 A CNB2004100036508 A CN B2004100036508A CN 200410003650 A CN200410003650 A CN 200410003650A CN 1332812 C CN1332812 C CN 1332812C
Authority
CN
China
Prior art keywords
ink
recognition unit
output
storage element
jet printer
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 - Fee Related
Application number
CNB2004100036508A
Other languages
Chinese (zh)
Other versions
CN1651246A (en
Inventor
胡鸿烈
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Joint Science & Technology Co Ltd
Original Assignee
International Joint Science & Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by International Joint Science & Technology Co Ltd filed Critical International Joint Science & Technology Co Ltd
Priority to CNB2004100036508A priority Critical patent/CN1332812C/en
Priority to DE200460022628 priority patent/DE602004022628D1/en
Priority to EP20040029570 priority patent/EP1561587B1/en
Publication of CN1651246A publication Critical patent/CN1651246A/en
Application granted granted Critical
Publication of CN1332812C publication Critical patent/CN1332812C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17543—Cartridge presence detection or type identification
    • B41J2/17546—Cartridge presence detection or type identification electronically
    • 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
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04541—Specific driving circuit
    • 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
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/0458—Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads based on heating elements forming bubbles
    • 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
    • B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
    • B41J2202/01—Embodiments of or processes related to ink-jet heads
    • B41J2202/17—Readable information on the head

Landscapes

  • Ink Jet (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

The present invention relates to an identifying circuit and an identifying method for an ink jet print head. The identifying circuit comprises a plurality of control lines, a control circuit and an identifying circuit, wherein the control circuit is used for supplying control signals to the control lines; an identifying unit in the identifying circuit is provided with at least one control input end, an output end and at least one data input end; the data input ends are electrically coupled to a corresponding storage unit, and the control input ends are respectively and electrically coupled to one of the corresponding control lines and determine output contents stored in the storage unit from the output end. The control circuit identifies the state of the unit by the stored contents which are received.

Description

The identification circuit of ink-jet printer and method thereof
Technical field
The invention relates to a kind of identification circuit and method thereof of ink-jet printer, and particularly relevant for a kind of identification circuit and method thereof that designs ink-jet printer with combinational logic.
Background technology
Please refer to Fig. 5, Fig. 5 is the circuit block diagram of the identification circuit of existing a kind of ink-jet printer.This circuit block diagram is that Hewlett-Packard (Hewlett-Packard Company) announces in No. 5363134 " Integrated circuit printhead for an ink jet printer including anintegrated identification circuit " at United States Patent (USP) and discloses.Identification circuit 526 is that the recognition data that is used to provide ink jet-print head (ink jet print head) 52 is given ink-jet printer 50, and ink jet-print head 52 is to be installed in the ink-jet printer 50.Ink-jet printer 50 includes a controller (controller) 502, and it is the operation that is used for controlling ink-jet printer 50, and a print-head drive circuit (head drive circuit) 504, and it is to be used for driving ink jet-print head 52.Ink-jet printer 50 includes three buses (buses) 506A～506C in addition, be connected between controller 502 and the print-head drive circuit 504, come to control signal to print-head drive circuit 504, and make the various circuit of print-head drive circuit 504 output corresponding simulating (analogue) potential pulses to ink jet-print head 52 in order to transfer control 502 relevant numerals (digital).52 of ink jet-print heads include an array circuit (array circuit) 522, and it is to be used for coming heating ink according to the output signal of print-head drive circuit 504, with the ejection ink droplet.Identification circuit 526 is to be used to provide recognition data to give ink-jet printer 50, and temperature sensing circuit 524 is that the temperature that is used to provide ink jet-print head 52 is given ink-jet printer 50 with other about ink jet-print head 52 information.Be connected with most bar line (row lines between print-head drive circuit 504 and the array circuit 522, or be referred to as address wire (addresslines)) 528A and most bar alignment (column lines, in Fig. 5, do not indicate), 504 of print-head drive circuits are by being selected and driven the various electronic building bricks of array circuit 522 by these lines 528A and alignment, below will being described in more detail its function mode.
Then please refer to Fig. 6 (A) and Fig. 6 (B), it is respectively the circuit diagram of the array circuit that has a kind of ink-jet printer now and the circuit diagram of resistance unit.Array circuit 522 includes most resistance units 69, and it is to be arranged in each number row of row, column, and in order to the ink in the heating ink storage tank, with the ejection ink droplet.(for example (for example power supply line P0～P5) then is connected in array circuit 522 to most bar lines, selecting and supplying energy is given resistance unit 69, and makes resistance unit 69 produce heat energy to extrude ink droplet for A0～A5) and most bar alignment.Each resistance unit 69 includes a resistance 63 and a transistor (transistor) 64, and wherein, transistor 64 is coupled to wherein one of corresponding address line A0～A5, with the flow through electric current of resistance 63 of control.When line that is connected when resistance unit 69 and alignment are supplied to a positive voltage respectively, 64 conductings of transistor, and produce the electric current of the resistance 63 of flowing through, and as electric current during by resistance 63, resistance 63 promptly can heat ink, and produces the bubble that is used for pushing ink droplet.
Please refer to Fig. 7, it is the circuit diagram of existing identification circuit.Identification circuit 526 is coupled to most bar lines (A1～A13) for example, and it includes most bars by most fuse (fuse, F1～F13) and most transistors (the sequencing path (programmable paths) of Q1～Q13) constituted for example for example, wherein, each bar sequencing path is made of the transistorized grid (gate) of a fuse serial connection to a correspondence.Each bar sequencing path can provide the identification code of a position (onebit) length to give ink-jet printer 50, and each bar sequencing path is to be to connect or fracture decides its identification code to be " 1 " or " 0 " by the weld bond state.And the combination of different fuse states can provide different recognition data to ink-jet printer 50.
Comprehensive the above, in the existing identification circuit, the identification code of each all must have a corresponding line, and a line can only be arranged is high logic current potential the same time.Therefore,, then must spend higher cost, and its volume also becomes big relatively if will make when identification circuit can read more identification code.
Summary of the invention
Purpose of the present invention just provides a kind of identification circuit of ink-jet printer, it is to utilize less control input end to read more identification code, and the control line input signal that can utilize existing address wire in the ink jet-print head or power supply line to be used as reading identification code.
Purpose of the present invention just provides a kind of discrimination method of ink-jet printer, and it is that arrangement mode according to the signal level in the printer control signal decides one of them the stored content that content determined that reads according to a plurality of storage elements of printer identification circuit.
The present invention proposes a kind of identification circuit of ink-jet printer, be that the content that ink jet-print head is stored offers ink-jet printer, and ink jet-print head is to be configured in the ink-jet printer.This identification circuit special is to comprise most bar control lines, a control circuit and an identification circuit.Above-mentioned control circuit is to supply with to control signal to these control lines.Above-mentioned identification circuit comprises a recognition unit at least, and this recognition unit has at least one control input end, an output and at least one data input pin.This data input pin is electrically coupled to a storage element, and the control input end is electrically coupled to wherein one of corresponding these control lines, and according to control signal, decision is from the content that content determined of output output according to storage unit stores.
Described according to preferred embodiment of the present invention, above-mentioned storage element comprises a fuse (fuse) or a low-power resistance (about 0.3W is following).
Described according to a preferred embodiment of the present invention, above-mentioned recognition unit comprises a NAND gate.This NAND gate has most NAND gate inputs and a NAND gate output, and it is to be coupled to data input pin that a NAND gate input is arranged, have another NAND gate input then correspondence be coupled to the control input end, and the NAND gate output is the output of recognition unit.
Described according to another preferred embodiment of the present invention, when above-mentioned identification circuit comprised most recognition units, each recognition unit was to have most control input ends, an output and a plurality of data input pin.These data input pins are electrically coupled to corresponding storage element respectively, these control input ends are electrically coupled to corresponding these control lines respectively, and according to control signal that these control lines received, decision is from the content of output output one decision, and the content of this decision is to determine according to control signal and the stored content of storage element.In most preferred embodiment, each recognition unit comprises most and Men Yuyi nor gate.These are to have most and door input and one and gate output terminal with door, and each recognition unit these with the door input in, there is one to be to be coupled to one of them of these data input pins, other these and then corresponding these control input end that is coupled to of input with the door input.This nor gate then has most nor gate inputs and a nor gate output, each with gate output terminal be corresponding one of them that is coupled in these nor gate inputs, and the nor gate output is the output of recognition unit.
Described according to preferred embodiment of the present invention, above-mentioned identification circuit is to be electrically coupled to control circuit by a bars transmission line.
Described according to preferred embodiment of the present invention, above-mentioned control line is power supply line or address wire.
The present invention reintroduces a kind of identification circuit of ink-jet printer, is applicable to that the content that ink jet-print head is stored offers ink-jet printer.Above-mentioned identification circuit is characterised in that and comprises: at least one recognition unit, this recognition unit have at least one control input end, an output and at least one data input pin.Wherein, data input pin is electrically coupled to storage element, the control input end is according to the control signal that ink-jet printer provided, and decision is from the content of output output one decision, and the content of this decision is to determine according to control signal and the stored content of storage element.
The present invention proposes a kind of discrimination method of ink-jet printer in addition, it is characterized in that using at least one control signal to read the stored content of at least one storage element.Wherein, this discrimination method is the arrangement mode according to the signal level in the control signal, again via at least one recognition unit, decides the content that reads a decision, and the content of this decision is to determine according to control signal and the stored content of storage element.
Described according to preferred embodiment of the present invention, in the above-mentioned discrimination method, be by reading content stored in the storage element by address wire or power supply line.
The present invention proposes a kind of discrimination method of ink-jet printer again, it is characterized in that using control signal to read stored content in a plurality of storage elements.Wherein, this discrimination method is that the arrangement mode according to the signal level in the control signal decides the content that reads a decision, and the content of this decision is to determine according to control signal and the stored content of these storage elements.
Described according to preferred embodiment of the present invention, this discrimination method is the control signal that is transmitted by by most bar address wires or most bar power supply line, reads stored content in these storage elements.
The present invention is because of adopting the identification structure that is used as printer with combinational logic, therefore can utilize less control line to read more identification code, and control signal wire can utilize the interior existing holding wire (address wire or power supply line) of ink jet-print head to read the input signal of identification code.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by a preferred embodiment, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 is the schematic diagram that illustrates according to a kind of ink-jet printer of a preferred embodiment of the present invention;
Fig. 2 (A) is the identification circuit schematic diagram that illustrates according in the identification circuit of a kind of ink-jet printer of a preferred embodiment of the present invention;
Fig. 2 (B) is the identification circuit calcspar that illustrates according in the identification circuit of a kind of ink-jet printer of a preferred embodiment of the present invention;
Fig. 3 (A) is the circuit diagram when illustrating a kind of recognition unit according to a preferred embodiment of the present invention 4 data inputs and 2 control input ends being arranged;
Fig. 3 (B) is the circuit diagram when illustrating another kind of recognition unit according to a preferred embodiment of the present invention 2 data inputs and 1 control input end being arranged;
Fig. 3 (C) is the circuit diagram when illustrating another kind of recognition unit according to a preferred embodiment of the present invention 1 data input and 1 control input end being arranged;
Fig. 3 (D) illustrates the circuit diagram of realizing dotted line 306 among Fig. 3 (A) according to a kind of metal-oxide semiconductor with the N path (NMOS) of a preferred embodiment of the present invention;
Fig. 3 (E) is a kind of fuse circuit diagram that illustrates according to a preferred embodiment of the present invention;
Fig. 4 is the discrimination method that illustrates according to a kind of ink-jet printer of a preferred embodiment of the present invention;
Fig. 5 is the circuit block diagram that illustrates the identification circuit of existing a kind of ink-jet printer;
Fig. 6 (A) is the circuit diagram that illustrates the array circuit of existing a kind of ink-jet printer;
Fig. 6 (B) is the circuit diagram that illustrates resistance unit in existing a kind of array circuit;
Fig. 7 is the circuit diagram that illustrates the identification circuit of existing a kind of ink-jet printer.
The specific embodiment
Please refer to Fig. 1, it is the schematic diagram that illustrates according to a kind of ink-jet printer of a preferred embodiment of the present invention.Ink-jet printer 10 includes control circuit 102, and it is the action that is used for controlling ink-jet printer 10.20 of ink jet-print heads comprise most bar control lines 110 and identification circuit 106.Wherein, identification circuit 106 is coupled to these control lines 110.100 of identification circuits are made of the control circuit 102 of ink-jet printer 10 and identification circuit 106, most bar control line 110 of ink jet-print head 20, and this ink jet-print head 20 is to be configured in the ink-jet printer 10, and this identification circuit 100 is in order to provide the stored content of ink jet-print head 20 to ink-jet printer 10.
In preferred embodiment of the present invention, as be familiar with this skill person and can know easily, ink jet-print head 20 stored contents can be ink-jet casket model, nozzle hole number, ink kind, ink capacity, build date, ink-jet casket user mode, but all not as limit.
In the present embodiment, control circuit 102 is to control signal to these control lines 110 in order to supply.Wherein, as be familiar with this skill person and can know easily, these control lines 110 can be power supply line or address wire, but all not as limit.
In preferred embodiment of the present invention, identification circuit 106 is to be electrically coupled to control circuit 102 by a bars transmission line 112, to send ink jet-print head 20 stored contents to ink-jet printer 10.
In the present embodiment, these control lines 110 can be coupled to array circuit 108, and in the circuit design of reality, certainly ought be not as limit.
Please follow with reference to Fig. 2 (A), it is the identification circuit schematic diagram that illustrates according in the identification circuit of a kind of ink-jet printer of a preferred embodiment of the present invention.In the present embodiment, the present invention for example can utilize A, B, four control input ends of C, D, sees through the mode of combinational logic, makes identification circuit 106 that the recognition data of 2*2*2*2=16 kind can be arranged.In other embodiments, identification circuit 106 is not limited in has only four control input ends, the user can increase the number of control input end or reduce and is lower than four according to actual demand, wherein, the number of control input end is to depend on ink jet-print head needed storage data kind number and determine.
Fig. 2 (B) is the identification circuit calcspar that illustrates according in the identification circuit of a kind of ink-jet printer of a preferred embodiment of the present invention.Wherein, identification circuit 106 is to comprise recognition unit 202,204,206,208 and 210.Wherein, (for example F1～F16) is corresponding is coupled to a storage element 230 to the data input pin of recognition unit 202～208.Recognition unit 202～208 also receives the signal of control input end A, B respectively.In addition, 4 data inputs of a recognition unit 210 then are coupled to 4 outputs of recognition unit 202～208 respectively, and recognition unit 210 also receives the signal of control input end C, D respectively.Wherein, recognition unit 210 is the status of electrically connecting between control identification circuit 106 and the control circuit 102.In other embodiments, as be familiar with this skill person and can know easily, identification circuit 106 not necessarily will have recognition unit 202～208, that is to say, identification circuit 106 also can only need get final product by a recognition unit, and as with this understanding identification circuit 106 constituted by a recognition unit exactly, the output of this recognition unit then is coupled to signal transmssion line 112.
In preferred embodiment of the present invention, as be familiar with this skill person and can know easily, above-mentioned storage element 230 comprises a fuse (fuse) or the following low-power resistance of about 0.3W.
Please follow with reference to Fig. 3 (A), this accompanying drawing is the circuit diagram of the recognition unit of above-mentioned identification circuit, and it is that mode with combinational logic realizes.In the present embodiment, explain orally with recognition unit 202 earlier, at first, recognition unit 202 comprises and door (AND gate) 312,314,316,318, and nor gate (NOR gate) 320.Three and door input reception data input pin (fuse) F1 with door 312, control input end A ' imports with the signal of control input end B ', three and door input reception data input pin (fuse) F2 with door 314, the signal input of control input end A and control input end B ', three and door input reception data input pin (fuse) F3 with door 316, control input end A ' imports with the signal of control input end B, three and door input reception data input pin (fuse) F4 with door 318, the input of the signal of control input end A and control input end B, nor gate 320 be the signal exported of reception and the output of door 312～318 then.The action of this recognition unit 202 is that any is with door 312～318 must when being logical one, its output just can be 1 in its all inputs (data input and control signal input).Nor gate 320 is then for having any one input (data input or control signal input) when being logical one, it will output logic 0, opposite, when all being logical zero, nor gate 320 just can output logic 1 in all inputs (data input and control signal input) for nor gate 320.Wherein, the output of nor gate 320 is the output of recognition unit 202.
In the present embodiment, above-mentioned control input end not necessarily limits must two control input end A, B, and also can have only for example is control input end A.Paint as Fig. 3 (B), when recognition unit 202 only has control input end A and two data input F1 and F2, the signal that receives data input pin F1 and control input end A with door 312 is imported, and the signal that receives data input pin F2 and control input end A ' with door 314 is imported.And its manner of execution just can export 1 with door 312,314 when being logical one with two of door 312,314 with the door input.Nor gate 320 all will output logic 0 then when having any one nor gate to be input as logical one, and opposite, when two nor gates inputs all be logical zero, nor gate 320 was just understood output logic 1.
In other words, in the above-described embodiments, when the control input end has n, promptly can read 2 n(2 n powers) individual (F 1～F 2 n) the storage element data.
In the above-described embodiments, recognition unit 202 is formed with 312～318 and nor gates 320 of door by four, as be familiar with this skill person and can know easily, in other embodiments, paint as Fig. 3 (C), when recognition unit 202 had only a control to come in and go out end A and data input pin F1, recognition unit 202 also can only be made of a NAND gate 322 (NAND gate), so can also obtain the desired output signal with the designer.
Fig. 3 (D) is a circuit diagram of realizing dotted line 306 among Fig. 3 (A) with the metal-oxide semiconductor (NMOS) of N path.In the present embodiment, it is with 4 groups of nmos pass transistor unit 340,350,360, four and door 312 in 370 representative graphs 3 (A), 314,316,318, and each nmos pass transistor unit is made up of 3 NOMS transistors, for example 340 is by receiving data input pin F1, control input end A ', the nmos pass transistor of B ' input signal is formed, the 350th, by receiving data input pin F2, control input end A, the nmos pass transistor of B ' input signal is formed, the 360th, by receiving data input pin F3, control input end A ', the nmos pass transistor of B input signal is formed, and the 370th, by receiving data input pin F4, control input end A, the nmos pass transistor of B input signal is formed.Its function mode then as the manner of execution of above-mentioned recognition unit 202.
Fig. 3 (E) is a kind of fuse circuit diagram that illustrates according to a preferred embodiment of the present invention.In the present embodiment, above-mentioned storage element 230 is to realize the circuit painted as Fig. 3 (E).The state of fuse 352 is controlled by nmos pass transistor 354 by connection or fracture, the grid of nmos pass transistor 354 then be F1～F16 signal input wherein one.When the grid of nmos pass transistor 354 was received the current potential of logical one, nmos pass transistor 354 was switched on, and storage element 230 is output as 0; Opposite, when the grid of nmos pass transistor 354 was received the current potential of logical zero, nmos pass transistor 354 was not switched on, and this moment, storage element 230 was output as 1.
Please refer to Fig. 4, it is the discrimination method that illustrates according to a kind of ink-jet printer of a preferred embodiment of the present invention.This discrimination method is at first with controlled signal (s402).Then, according to control signal is performed an analysis, with the arrangement mode (s404) of signal level in the controlled signal.At last, read the content of a decision with the arrangement mode decision of resultant signal level, the content of this decision is one of them the stored content (s406) according to a plurality of storage elements of printer identification circuit.
In preferred embodiment of the present invention, the control signal that this discrimination method can utilize most bar address wires or most bar power supply line to be transmitted, by recognition unit, to read one of them stored content that content was determined according to a plurality of storage elements of printer identification circuit.
Comprehensive the above, the identification circuit of ink-jet printer of the present invention and method thereof are because of utilizing digital multiplexer (wherein, this digital multiplexer can be 2 to 1 multiplexers, 4 to 1 multiplexers or 8 to 1 multiplexers, the practical application of multiplexer is the demand that depends on circuit designers) design, therefore the identification circuit of ink-jet printer of the present invention can utilize less control input end to read more identification code, and control line can utilize the interior existing holding wire (address wire or power supply line) of ink jet-print head to read the input signal of identification code.In addition, because the identification circuit of ink-jet printer of the present invention is to adopt the block form input, thus need not use clock (clock) signal input to read identification code, and do not have the real-time restriction.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; anyly be familiar with this skill person; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.

Claims (27)

1. the identification circuit of an ink-jet printer is applicable to that the content that an ink jet-print head is stored offers this ink-jet printer, and this ink jet-print head is disposed in this ink-jet printer, it is characterized in that this identification circuit comprises:
Most bar control lines;
A control circuit is supplied with and is controlled signal to this majority bar control line; And
An identification circuit, at least comprise a recognition unit, this recognition unit has at least one control input end, an output and at least one data input pin, this data input pin is electrically coupled to one of a corresponding storage element and exports the content that is stored in this storage element with reception, this recognition unit be by by this data input pin to obtain the content of this storage element, this storage element is external and is electrically coupled to this recognition unit, this control input end be electrically coupled to corresponding should majority bar control line wherein one to receive this control signal, this recognition unit and according to the content of this control signal and this storage element, decision is from the content of this output output one decision, and the content of this decision is that the content of this control signal and this storage element is made logic and operated resulting.
2. the identification circuit of ink-jet printer as claimed in claim 1 is characterized in that, described this storage element comprises a fuse.
3. the identification circuit of ink-jet printer as claimed in claim 1 is characterized in that, described this storage element comprises a low-power resistance.
4. the identification circuit of ink-jet printer as claimed in claim 1, it is characterized in that, described this recognition unit comprises a NAND gate, this NAND gate has most NAND gate inputs and a NAND gate output, and one of them in should a majority NAND gate input is to be coupled to this data input pin, another NAND gate input then is coupled to this control input end, and this output that this NAND gate output is this recognition unit.
5. the identification circuit of ink-jet printer as claimed in claim 1, it is characterized in that, when this identification circuit comprises most recognition units, each this recognition unit is to have most control input ends, an output and a plurality of data input pin, these a plurality of data input pins are electrically coupled to a corresponding storage element respectively, this majority control input end be electrically coupled to respectively corresponding should majority bar control line, each this recognition unit and this control signal that is received according to this majority bar control line, decision is from the content of this output output one decision, and the content of this decision is that the content of this control signal and this storage element is made logic and operated resulting.
6. the identification circuit of ink-jet printer as claimed in claim 5 is characterized in that, described each this recognition unit comprises:
Most and door, each should be to have most and door input and one and gate output terminal with door, and should majority with the door input in any be coupled to these a plurality of data input pins one of them, other this majority and then corresponding this a majority control input end that is coupled to of input; And
A nor gate, have most nor gate inputs and a nor gate output, each should with door should be corresponding one of them that is coupled in this majority nor gate input with gate output terminal, and this output that this nor gate output is this recognition unit.
7. the identification circuit of ink-jet printer as claimed in claim 1 is characterized in that, described this identification circuit is by being electrically coupled to this control circuit by a bars transmission line.
8. the identification circuit of ink-jet printer as claimed in claim 1 is characterized in that, described should majority bar control line be power supply line.
9. the identification circuit of ink-jet printer as claimed in claim 1 is characterized in that, described should majority bar control line be address wire.
10. identification circuit that is used for the ink jet-print head of ink-jet printer, be applicable to a stored content of ink jet-print head is offered this ink-jet printer, it is characterized in that, this identification circuit comprises: at least one recognition unit, this recognition unit has at least one control input end, an output and at least one data input pin, this data input pin is electrically coupled to one of a storage element and exports the content that is stored in this storage element with reception, this control input end receives at least one control signal of supplying with from least one control line of this ink-jet printer, this recognition unit is to obtain the content of this storage element by this data input pin, this data input pin is between this storage element and this recognition unit and electrically connects this storage element and this recognition unit, wherein this control signal and this content are done logic running obtaining an output signal, and this output signal is this output output via this recognition unit.
11. the identification circuit of ink jet-print head as claimed in claim 10 is characterized in that, described this storage element comprises a fuse.
12. the identification circuit of ink jet-print head as claimed in claim 10 is characterized in that, described this storage element comprises a low-power resistance.
13. the identification circuit of ink jet-print head as claimed in claim 10, it is characterized in that, described this recognition unit comprises a NAND gate, this NAND gate has most NAND gate inputs and a NAND gate output, and one of them that should a majority NAND gate input is to be coupled to this data input pin, another NAND gate input then is coupled to this control input end, and this output that this NAND gate output is this recognition unit.
14. the identification circuit of ink jet-print head as claimed in claim 10, it is characterized in that, when this identification circuit comprises most recognition units, each this recognition unit is to have most control input ends, an output and a plurality of data input pin, these a plurality of data input pins are electrically coupled to a corresponding storage element respectively, this majority control input end is electrically coupled to the control line of corresponding this ink-jet printer respectively, each this recognition unit and according to this control signal that this control line received and the content of corresponding storage element, decision is exported an output signal from this output.
15. the identification circuit of ink jet-print head as claimed in claim 14 is characterized in that, each this recognition unit comprises:
Most and door, each should be to have most and door input and one and gate output terminal with door, and should majority with the door input in any be to be coupled to one of them of this data input pin, other this and then corresponding this a plurality of control input ends that are coupled to of door input; And
A nor gate, have most nor gate inputs and a nor gate output, each should with door should be corresponding one of them that is coupled in this majority nor gate input with gate output terminal, and this output that this nor gate output is this recognition unit.
16. the discrimination method of an ink-jet printer, it is characterized in that, at least one control signal that use offers a recognition unit reads a content that is stored at least one storage element, wherein this content is by the arrangement mode of this recognition unit according to the signal level in this control signal, read from an output of this storage element by a data input pin by this recognition unit, wherein this data input pin is between this storage element and this recognition unit and electrically connects this storage element and this recognition unit, wherein the running of this control signal and this content logic to be obtaining an output signal, and this output signal is the output output via this recognition unit.
17. the discrimination method of ink-jet printer as claimed in claim 16 is characterized in that, is by read content stored in this storage element by address wire.
18. the discrimination method of ink-jet printer as claimed in claim 16 is characterized in that, wherein is by read content stored in this storage element by power supply line.
19. the discrimination method of ink-jet printer as claimed in claim 16, it is characterized in that stored content comprises at least wherein a kind of of ink-jet casket model, nozzle hole number, ink capacity, build date, ink-jet casket user mode, ink kind in described this storage element.
20. the discrimination method of ink-jet printer as claimed in claim 16 is characterized in that, described this storage element comprises a fuse.
21. the discrimination method of ink-jet printer as claimed in claim 16 is characterized in that, described this storage element comprises a low-power resistance.
22. the discrimination method of ink-jet printer as claimed in claim 16, it is characterized in that, described this recognition unit comprises a NAND gate, this NAND gate has most NAND gate inputs and a NAND gate output, and should there be one to be to be coupled to this corresponding data input pin in the majority NAND gate input, there is another NAND gate input then to be coupled to a control input end of this recognition unit, and this output that this NAND gate output is this recognition unit.
23. the discrimination method of ink-jet printer as claimed in claim 16 is characterized in that, described this recognition unit comprises:
Most and door, each should be to have most and door input and one and gate output terminal with door, and should majority with the door input in one of them be to be coupled to this corresponding data input pin, other this majority individual with then corresponding this control input end that is coupled to of input; And
A nor gate, have most nor gate inputs and a nor gate output, each should with door should be corresponding one of them that is coupled in this majority nor gate input with gate output terminal, and this output that this nor gate output is this recognition unit.
24. the discrimination method of an ink-jet printer, it is characterized in that, use offers at least one control signal of a recognition unit, make this recognition unit read the stored content of one of them storage element in a plurality of storage elements, wherein, this content that is read is to export by one of this one of them storage element to be read, and according to the arrangement mode of the signal level in this control signal, input to this recognition unit by a data input pin by this recognition unit, and this data input pin is between this one of them storage element and this recognition unit and electrically connects this one of them storage element and this recognition unit, wherein the running of this control signal and this content logic that is read to be obtaining an output signal, and this output signal is the output output via this recognition unit.
25. the discrimination method of ink-jet printer as claimed in claim 24 is characterized in that, wherein is by read this stored content in this storage element by address wire.
26. the discrimination method of ink-jet printer as claimed in claim 24 is characterized in that, wherein is by read content stored in this storage element by power supply line.
27. the discrimination method of ink-jet printer as claimed in claim 24, it is characterized in that stored content comprises at least wherein a kind of of ink-jet casket model, nozzle hole number, ink capacity, build date, ink-jet casket user mode, ink kind in described this storage element.
CNB2004100036508A 2004-02-05 2004-02-05 Identification circuit of ink jet printing head and its method Expired - Fee Related CN1332812C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CNB2004100036508A CN1332812C (en) 2004-02-05 2004-02-05 Identification circuit of ink jet printing head and its method
DE200460022628 DE602004022628D1 (en) 2004-02-05 2004-12-14 Inkjet identifying circuit
EP20040029570 EP1561587B1 (en) 2004-02-05 2004-12-14 Inkjet printer identification circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2004100036508A CN1332812C (en) 2004-02-05 2004-02-05 Identification circuit of ink jet printing head and its method

Publications (2)

Publication Number Publication Date
CN1651246A CN1651246A (en) 2005-08-10
CN1332812C true CN1332812C (en) 2007-08-22

Family

ID=34662371

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2004100036508A Expired - Fee Related CN1332812C (en) 2004-02-05 2004-02-05 Identification circuit of ink jet printing head and its method

Country Status (3)

Country Link
EP (1) EP1561587B1 (en)
CN (1) CN1332812C (en)
DE (1) DE602004022628D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018048414A1 (en) * 2016-09-09 2018-03-15 Hewlett-Packard Development Company, L.P. Coupling element corresponding to identifier
JP7238473B2 (en) * 2018-09-19 2023-03-14 セイコーエプソン株式会社 PRINT HEAD CONTROL CIRCUIT, PRINT HEAD AND LIQUID EJECTION DEVICE
JP7272013B2 (en) * 2018-09-19 2023-05-12 セイコーエプソン株式会社 Print head control circuit and liquid ejection device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363134A (en) * 1992-05-20 1994-11-08 Hewlett-Packard Corporation Integrated circuit printhead for an ink jet printer including an integrated identification circuit
EP0765762A1 (en) * 1995-09-27 1997-04-02 Lexmark International, Inc. Ink jet print head identification circuit with serial out, dynamic shift registers
US5635968A (en) * 1994-04-29 1997-06-03 Hewlett-Packard Company Thermal inkjet printer printhead with offset heater resistors
US6022094A (en) * 1995-09-27 2000-02-08 Lexmark International, Inc. Memory expansion circuit for ink jet print head identification circuit
US20030030687A1 (en) * 2001-08-10 2003-02-13 Hung-Lieh Hu Recognition circuit for an ink jet printer
EP1306221A2 (en) * 1997-11-14 2003-05-02 Canon Kabushiki Kaisha Printing head, recording apparatus having the printing head, method for identifying the printing head, and method for giving identification information to the printing head

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363134A (en) * 1992-05-20 1994-11-08 Hewlett-Packard Corporation Integrated circuit printhead for an ink jet printer including an integrated identification circuit
US5635968A (en) * 1994-04-29 1997-06-03 Hewlett-Packard Company Thermal inkjet printer printhead with offset heater resistors
EP0765762A1 (en) * 1995-09-27 1997-04-02 Lexmark International, Inc. Ink jet print head identification circuit with serial out, dynamic shift registers
US6022094A (en) * 1995-09-27 2000-02-08 Lexmark International, Inc. Memory expansion circuit for ink jet print head identification circuit
EP1306221A2 (en) * 1997-11-14 2003-05-02 Canon Kabushiki Kaisha Printing head, recording apparatus having the printing head, method for identifying the printing head, and method for giving identification information to the printing head
US20030030687A1 (en) * 2001-08-10 2003-02-13 Hung-Lieh Hu Recognition circuit for an ink jet printer

Also Published As

Publication number Publication date
EP1561587B1 (en) 2009-08-19
DE602004022628D1 (en) 2009-10-01
EP1561587A1 (en) 2005-08-10
CN1651246A (en) 2005-08-10

Similar Documents

Publication Publication Date Title
CN1108586C (en) Ink jet print head indentification circuit with programmed transistor array
US5541629A (en) Printhead with reduced interconnections to a printer
US20090244132A1 (en) Fluid Ejection Device
EP0916503B1 (en) Head, recording apparatus having the head, method for identifying the head
JP4933057B2 (en) Head substrate, recording head, and recording apparatus
CN1154607A (en) Ink jet print head identification circuit with serial out, dynamic shift registers
JP4681943B2 (en) Printhead substrate, inkjet printhead, and head cartridge
US8033626B2 (en) Ink jet printhead module and ink jet printer
KR100791851B1 (en) Substrate for ink jet recording head, driving control method, ink jet recording head, and ink jet recording apparatus
EP0635374B1 (en) Drive device and method for heating elements in a recording apparatus
US7198348B2 (en) Inkjet printer identification circuit
CN1332812C (en) Identification circuit of ink jet printing head and its method
US20060209131A1 (en) Ink-jet printhead substrate, driving control method, ink-jet printhead and ink-jet printing apparatus
JP2008273177A (en) Element substrate for recording head, record head, head cartridge, and recording device
JP5031455B2 (en) Element substrate for recording head, recording head, and recording apparatus using the recording head
US7992952B2 (en) Enhanced communications protocol for improved modularity in a micro-fluid ejection device
JP4018404B2 (en) Inkjet recording head, recording apparatus using the inkjet recording head, recording head cartridge, and element substrate
JPH09300620A (en) Ink jet recording head and testing method therefor
US8322809B2 (en) Recording head and recording apparatus using recording head
JP2817933B2 (en) Ink jet recording device
CN100503247C (en) Ink jet print head controller and ink jet printer
CN102485486B (en) Ink jet unit group
CN100363180C (en) Ink-jet printing head identification system for printer possessing circular counter and programmed circuit
JP2022140060A (en) Element substrate, recording head, recording device and control method thereof
JP2000015793A (en) Recording head and recording apparatus using recording head, and method for confirming connection of recording head and recording apparatus

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070822

Termination date: 20210205