CN103085490B - Printing equipment and printing equipment circuit substrate - Google Patents

Abstract

The present invention provides printing equipment and printing equipment circuit substrate etc..Printing equipment includes first～n-th integer of more than 2 (n be) the printing material containing body (100-1～100-n) of the storage device (203) being respectively provided with memory print material information and multiple storage device terminal and is connected and carries out storage device (203) the control portion (300) of the control that data read or write with multiple storage device terminals of the first～n-th printing material containing body.The multiple storage device terminals of each of i-th integer of 1 ＜ i ＜ n-1 (i be) in the first～n-th printing material containing body～the jth integer of i ＜ j ＜ n (j be) printing material containing body are jointly connected with control portion (300) by bus MBS.Multiple storage device terminals of the first printing material containing body (100-1) are connected with control portion (300) discretely with bus MBS.Multiple storage device terminals of the n-th printing material containing body (100-n) are connected with control portion (300) discretely with bus MBS.

Description

Printing equipment and printing equipment circuit substrate

Technical field

The present invention relates to printing equipment and printing equipment circuit substrate etc..

Background technology

Patent documentation 1 is such as recorded following technology: there is the printing equipment of testing circuit In, prevent or suppress to be used for the high voltage circuit of detection and depositing that printing material containing body is had Printing material containing body and printing that other short circuit of storage device or printing equipment causes fill The unfavorable condition put, the kind of described testing circuit detection printing material containing body (print cartridge etc.), print The level of the amount of the printing material accommodated in brush material containing body.

Prior art literature

Patent documentation

Patent documentation 1: patent documentation JP 2007-196664 publication.

Summary of the invention

Several modes according to the present invention, using the teaching of the invention it is possible to provide reliable and secure printing material can be carried out efficiently The printing equipment installing detection of material containing body and printing equipment circuit substrate etc..

An embodiment of the invention relates to a kind of printing equipment, and described printing equipment includes: first Printing material containing body～the n-th printing material containing body, be respectively provided with depositing of memory print material information Storage device and multiple storage device terminal；And control portion, accommodate with described first printing material The plurality of storage device terminal of body～described n-th printing material containing body connects, and to described Storage device carries out reading or the control of write, described first printing material containing body～institute of data State the i-th printing material containing body in the n-th printing material containing body～jth printing material containing body The plurality of storage device terminal of each is jointly connected with described control portion by bus, institute State the plurality of storage device terminal of the first printing material containing body and described bus discretely with institute State control portion to connect, the plurality of storage device terminal of described n-th printing material containing body and institute Stating bus to be connected with described control portion discretely, wherein, n is the integer of more than 2, and i is 1 ＜ i ＜ n-1 Integer, j is the integer of i ＜ j ＜ n.

According to an embodiment of the invention, the storage device of the first, n-th printing material containing body It is connected with control portion discretely with other printing material containing body with terminal, therefore first, n-th In the case of the storage device terminal of printing material containing body there occurs the unfavorable conditions such as short circuit, it is possible to Prevent from affecting the storage device of other printing material containing body.It addition, i-th～jth printing material hold The storage device terminal of body received jointly is connected with control portion by bus, therefore, it is possible to simplify control The circuit composition etc. in portion.As a result of which it is, printing material receiving can reliably, safely and efficiently be carried out The installation detection of body, and storage device etc. is reliably protected when short circuit occurs.

The most in an embodiment of the invention, printing equipment may is that and includes circuit substrate, Described control portion is installed on described circuit substrate, and described circuit substrate has and described first printing The plurality of storage device terminal of material containing body～described n-th printing material containing body connects The first terminal group～n-th terminal group and the bus terminals of described bus, described the first terminal group is configured In the first end edge side of described circuit substrate, described n-th terminal group is configured in described circuit substrate The second end edge side relative with described first end edge.

So, the first, n-th printing material containing body and first, second end being arranged in circuit substrate The terminal group of avris connects, therefore the printing material containing body in the end edge side being arranged on circuit substrate In the case of storage device terminal there occurs the unfavorable conditions such as short circuit, it is possible to prevent from affecting other print The storage device of brush material containing body.

The most in an embodiment of the invention, printing equipment may is that described i-th printing material Material containing body is second in described first printing material containing body～described n-th printing material containing body Printing material containing body, described jth printing material containing body be described first printing material containing body～ The (n-1)th printing material containing body in described n-th printing material containing body.

So, among n printing material containing body, except being arranged on the end edge side of circuit substrate Two printing material containing body outside n-2 printing material containing body, it is possible to will be each by bus Individual storage device terminal is jointly connected with control portion, therefore, it is possible to the circuit simplifying control portion is constituted Deng.

The most in an embodiment of the invention, printing equipment may is that described i-th printing material The plurality of storage device terminal of material containing body～described jth printing material containing body includes respectively Clock terminal, data terminal, the first power supply terminal and second source terminal, described clock terminal, Described data terminal, described first power supply terminal and described second source terminal respectively by described always Line is jointly connected with described control portion.

In such manner, it is possible to by i-th～the clock terminal of jth printing material containing body, data terminal, first Power supply terminal and second source terminal are jointly connected with control portion by bus.

The most in an embodiment of the invention, printing equipment may is that described i-th printing material The plurality of storage device terminal of material containing body～described jth printing material containing body the most also wraps Include reseting terminal.

In such manner, it is possible to by i-th～the reseting terminal of jth printing material containing body, clock terminal, data Terminal, the first power supply terminal and second source terminal are jointly connected with control portion by bus.

The most in an embodiment of the invention, printing equipment may is that described control portion includes Detect the installation inspection of the installation of described first printing material containing body～described n-th printing material containing body Survey portion, described i-th printing material containing body～described jth printing material containing body include installing respectively Detection terminal, described installation detection terminal is jointly connected with described control portion.

So, the installation of the first～n-th printing material containing body can detect in control portion.It addition, energy Enough the installation detection terminal of i-th～jth printing material containing body is commonly connected to control portion, therefore The circuit composition installing test section can be simplified.

The most in an embodiment of the invention, printing equipment may is that described i-th printing material The described installation of the kth printing material containing body in material containing body～described jth printing material containing body The described installation detection terminal of detection terminal and kth+2 printing material containing body jointly with described control Portion connects, and wherein, k is the integer of i≤k≤j-2.

So, for being spaced two printing materials of a configuration from i-th～jth printing material containing body Material containing body, it is possible to respective installation detection terminal is commonly connected to control portion.

The most in an embodiment of the invention, printing equipment may is that and installs detection described When the installation of described first printing material containing body～described n-th printing material containing body is detected in portion, institute State control portion and the plurality of storage device terminal is set as high impedance status.

So, when detecting the installation of printing material containing body, even if being applied with installation detection In the case of the installation detection terminal of pressure and the storage device short-circuit of terminals, it is also possible to prevent from detection is installed It is applied to store device with voltage.

Other the embodiment of the present invention relates to printing equipment circuit substrate, and described printing equipment is used Circuit substrate includes: the first terminal group～n-th terminal group, with the first printing material containing body～n-th Printing material containing body connects；And bus terminals, by described the first terminal group～described n-th terminal The i-th terminal group～jth terminal group in group are jointly connected with control portion, described the first terminal group with Described bus terminals is connected with described control portion discretely, described n-th terminal group and described bus terminals Being connected with described control portion discretely, wherein, n is the integer of more than 2, and i is the whole of 1 ＜ i ＜ n-1 Number, j is the integer of i ＜ j ＜ n.

According to other the embodiment of the present invention, first, n-th terminal group divides with bus terminals respectively Liftoff it is connected with control portion, even if the terminal therefore first, n-th terminal group there occurs that short circuit etc. is no In the case of good situation, it is also possible to prevent from affecting other terminal group.

Additionally in other the embodiment of the present invention, printing equipment circuit substrate may is that institute State the first terminal group～described n-th terminal group includes respectively for accessing described first printing material receiving Multiple storage device terminals of the storage device that body～described n-th printing material containing body are had.

So, control portion can hold via first～n-th terminal group access the first～n-th printing material Receive the storage device of body.

Additionally in other the embodiment of the present invention, printing equipment circuit substrate may is that institute State the first terminal group～described n-th terminal group is respectively provided with for detecting described first printing material receiving The installation detection terminal of the installation of body～described n-th printing material containing body.

So, the first～n-th printing material appearance can detect via first～n-th terminal group in control portion Receive the installation of body.

Accompanying drawing explanation

Fig. 1 is the axonometric chart of the configuration example illustrating printing equipment；

(A) of Fig. 2 and (B) of Fig. 2 are the axonometric charts of the outward appearance illustrating printing material containing body；

(A) of Fig. 3 and (B) of Fig. 3 are the configuration examples of substrate；

Fig. 4 is the first configuration example of printing material containing body and circuit substrate etc.；

Fig. 5 is the second configuration example of printing material containing body and circuit substrate etc.；

Fig. 6 is the basic configuration example electrically constituted of printing equipment；

Fig. 7 is the configuration example of the circuit relevant to short-circuit detecting and installation detection；

Fig. 8 is to install detection and the flow chart of memory access；

(A) of Fig. 9～(D) of Fig. 9 are the detailed structures of output circuit and imput output circuit Become example；

Figure 10 is the detailed configuration example of short-circuit detecting portion and voltage application portion；

(A) of Figure 11 and (B) of Figure 11 are the installation detection methods that printing material containing body is described Figure；

Figure 12 is the detailed configuration example installing test section.

The explanation of symbol

100 print cartridges (printing material containing body)

200 substrates

201 cylinder grooves

202 cylindrical holes

203 storage devices

300 control portions

310 short-circuit detecting portions

320 voltage application portion

330 install test section

340CO test section

350 communication processing section

360 high voltage control portions

400 master control part

410CPU

420 memorizeies

430 display parts

441 LVPSs

442 high-voltage power supplies

450 circuit substrates

TG1～TG6 first～the 6th terminal group

MBS bus

CO1, CO2 first, second short-circuit detecting terminal

DT1, DT2 first, second installs detection terminal

RST reseting terminal

SCK clock terminal

SDA data terminal

VDD power supply terminal

VSS ground terminal

ND detects node

Detailed description of the invention

Hereinafter, the present invention is explained preferred embodiment.Additionally, this reality of following description Mode of executing is not the embodiment party limited the present disclosure described in claims undeservedly Formula, in present embodiment necessary to whole solutions being not necessarily the present invention of the composition of explanation.

1. printing equipment

Fig. 1 is the axonometric chart of the configuration example illustrating the printing equipment in present embodiment.Printing equipment 1000 include the box installation portion 1100, free to rotate installing print cartridge (printing material containing body) Cover 1200 and operating portion 1300.Box installation portion 1100 also referred to as " cartridge holder " or Referred to as " keeper ".In the example depicted in figure 1, box installation portion 1100 can be pacified independently Fill 4 print cartridges, such as, black, yellow, magenta, these 4 kinds of print cartridges of cyan (printing material can be installed Material containing body) 100.Cover 1200 can omit.Operating portion 1300 be user carry out various instruction or The input equipment that person sets, it addition, include the display part carrying out various notice to user.

(A) of Fig. 2 and (B) of Fig. 2 are the axonometric charts of the outward appearance illustrating print cartridge 100.Fig. 2's (A), the XYZ axle in (B) of Fig. 2 is corresponding with the XYZ axle of Fig. 1.Additionally, print cartridge is the simplest It is referred to as " box ".This box 100 has the face shaping of flat approximately parallelepiped body, the chi in three directions Among very little L1, L2, L3, length L1 (size of direction of insertion) is maximum, width L2 is minimum, Highly L3 is between length L1 and width L2.

Box 100 includes front end face (the first face) Sf, rear end face (the second face) Sr, end face the (the 3rd Face) St, bottom surface (fourth face) Sb and two sides (the 5th and hexahedro) Sc, Sd.It is internally provided with the ink receptive room 120 formed by flexible material (also referred to as at box 100 " ink receptive bag ").Front end face Sf includes two holes 131,132, location and ink supply port 110.End face St is provided with substrate 200.Substrate 200 is equipped with for preserving and ink The non-volatile memory device of relevant information.First side Sc and the second side Sd is relative to each other, It addition, it is orthogonal with front end face Sf, end face St, rear end face Sr and bottom surface Sb.In the second side Concavo-convex fitting portion 134 it is configured with on the position that Sd and front end face Sf intersects.

(A) of Fig. 3 shows the composition of the substrate 200 in present embodiment.The table of substrate 200 Face is the face that substrate 200 is installed to expose laterally during box 100.(B) of Fig. 3 show from The figure that the side of substrate 200 is seen when observing.It is formed with cylinder groove in the upper end of substrate 200 201, it is formed with cylindrical hole 202 in the bottom of substrate 200.

Arrow SD in (A) of Fig. 3 shows the installation to box installation portion 1100 mounting box 100 Direction.The installation direction (X-direction) of the box shown in this installation direction SD with Fig. 2 is consistent.Substrate 200 have storage device 203 overleaf, are provided with the terminal being made up of 9 terminals from the teeth outwards Group.Although the diagram of eliminating, but it is configured with for connecting terminal on the surface of substrate 200 and the back side With the storage wiring of device 203 and other wiring and for electrically connecting the wiring of substrate surface The through hole of the wiring with substrate back.Storage device 203 preserve the information relevant to box 100 and with Information (such as amount information, ink surplus, the ink consumption that the ink accommodated in box 100 is relevant Amount).These terminals are formed substantially rectangular shape, and are configured to form big with installation direction SD Cause two vertical row.

Be provided with on substrate 200 multiple storage device terminal RST, SCK, SDA, VDD, VSS and first installs detection terminal DT1, the second installation detection terminal DT2, the first short-circuit detecting end Sub-CO1 and the second short-circuit detecting terminal CO2.

Among two row, the row of installation direction SD nearby side (are positioned at upside in (A) of Fig. 3 Row) it is referred to as upside row A1 (first row), row ((A) of Fig. 3 in the distally of installation direction SD In be positioned at downside row) be referred to as downside row A2 (secondary series).In addition it is also possible to think these Row A1, A2 are the row formed by the contact site cp of multiple terminals.The contact site cp of multiple terminals is When box is installed to printing equipment in order to connect printing equipment lateral circuit substrate and circuit substrate 200 and It is arranged on the part of the adapter within keeper and multiple termination contact.

The end arranging A2 on the downside of terminal CO1, RST, SCK, CO2 of A1 and formation is arranged on the upside of formation Sub-DT1, VDD, VSS, SDA, DT2 are respectively provided with following function (purposes).

A1 ＞ is arranged on the upside of ＜

(1) first short-circuit detecting terminal CO1

(2) reseting terminal RST

(3) clock terminal SCK

(4) second short-circuit detecting terminal CO2

A2 ＞ is arranged on the downside of ＜

(5) first install detection terminal DT1

(6) first power supply terminal (power supply terminal) VDD

(7) second source terminal (ground terminal) VSS

(8) data terminal SDA

(9) second install detection terminal DT2

First, second install detection terminal DT1, DT2 be as described later detection box 100 whether by Use when being properly mounted on box installation portion 1100.It addition, first, second short-circuit detecting end Sub-CO1, CO2 are to use when detecting first, second installation detection terminal DT1, DT2 short circuit 's.Other 5 terminals RST, SCK, VDD, VSS, SDA are storage device 203 use Terminal, also referred to as " memorizer terminal ".

Each terminal has the contact of the termination contact corresponding with multiple device side terminals in the central portion Portion cp.Terminal each of A2 is arranged on the downside of arranging each contact site cp of the terminal of A1 on the upside of formation and being formed Contact site cp is staggered configuration, constitutes so-called staggered configuration.It addition, arrange A1 on the upside of being Xing Chenged Terminal and formed on the downside of arrange A2 terminal be also staggered configuration, constitute so-called staggered configuration and make The terminal center each other that obtains does not arranges on installation direction SD.

Upside row A1 first, second short-circuit detecting terminal CO1, CO2 each contact site respectively by It is arranged in the both ends of upside row A1, is configured in the outermost of upside row A1 the most respectively.It addition, Each contact site of first, second installation detection terminal DT1, DT2 of downside row A2 is configured in down The both ends of side row A2, are configured in the outermost of downside row A2 the most respectively.Memorizer terminal The contact site of RST, SCK, VDD, VSS, SDA by centralized configuration in being configured with all 9 ends Substantial middle in the region of son.It addition, first, second short-circuit detecting terminal CO1, CO2 and First, second install detection terminal DT1, DT2 contact site be configured in memorizer terminal RST, Four angles of the set of SCK, VDD, VSS, SDA.

In such as printing equipments such as ink-jet printers, the ink of electric conductivity etc. may adhere to substrate 200 Terminals side.As shown in (A) of Fig. 3, the first short-circuit detecting terminal CO1 and first installs detection Terminal DT1 is adjacent, and it is adjacent that the second short-circuit detecting terminal CO2 and second installs detection terminal DT2. It is thus possible, for instance owing to the ink etc. of electric conductivity is attached to the terminals side of substrate 200, be likely to result in adjacent Two terminal CO1 and DT1 or CO2 and DT2 be short-circuited due to the ink etc. of electric conductivity (electric leakage).It addition, the first installation detection terminal DT1 and power supply terminal VDD is likely to short circuit, Or the second installation detection terminal DT2 and data terminal SDA are likely to short circuit.

First, second installation detection terminal DT1, DT2 is for detecting printing material containing body 100 The terminal of installation, apply high voltage (such as when carrying out this installation detection to DT1, DT2 42V).Therefore, occur short with other terminal due to the ink etc. of electric conductivity at DT1 or DT2 In the case of road, it is possible to the such as circuit to storage device 203 grade is applied with high voltage and circuit quilt Destroy.

As described below, according to the printing equipment of present embodiment, even if due to electric conductivity Ink etc. cause being short-circuited between terminal in the case of, also can prevent due to install detection time put on The high voltage of detection terminal DT1, DT2 is installed and destroys the circuit of storage device 203 etc..

Fig. 4 illustrates the printing material containing body in the printing equipment of present embodiment and circuit substrate etc. The first configuration example.First configuration example includes the first printing material containing body 100-1～the 4th (broad sense It is n-th that ground is said the integer of more than 2 (n be)) printing material containing body 100-4, control portion 300 with And circuit substrate 450.Additionally, the printing equipment of present embodiment is not limited to the composition of Fig. 4, energy Enough implemented by following various deformation, as omitted a part for its element, changing other structure into Become key element, add other element etc..

Printing material containing body 100-1～100-4 is respectively provided with the storage device of memory print material information 203 (203-1～203-4), multiple storage device terminal RST, SCK, VDD, VSS, SDA, installation detection terminal DT1, DT2 and short-circuit detecting terminal CO1, CO2.At DT1 And between DT2, it is provided with installation detection resistance element RD.CO1, CO2 accommodate at printing material The inside of body 100 is electrically connected by wiring.

Control portion 300 and first～the 4th multiple storage dress of printing material containing body 100-1～100-4 Put and connect with terminal RST, SCK, VDD, VSS, SDA, storage device 203 is carried out data Read or write control.

First～the 4th in printing material containing body 100-1～100-4 second (is i-th in a broad sense The integer of 1 ＜ i ＜ n-1 (i be))～the 3rd (being the jth integer of i ＜ j ＜ n (j be) in a broad sense) Respective multiple storage device terminal RST of printing material containing body 100-2,100-3, SCK, VDD, VSS, SDA are jointly connected with control portion 300 by bus MBS.First printing material Material containing body 100-1 multiple storage device terminal RST, SCK, VDD, VSS, SDA with Bus MBS is connected with control portion 300 discretely.4th (being n-th in a broad sense) printing material holds Receive multiple storage device terminal RST, SCK, VDD, VSS, SDA of body 100-4 and bus MBS is connected with control portion 300 discretely.

Circuit substrate 450 is printing equipment circuit substrate, is provided with control portion 300, and includes The bus of the one～the 4th (being n-th in a broad sense) terminal group TG1～TG4 and bus MBS connects Line.First～the 4th terminal group TG1～TG4 and first～the 4th printing material containing body 100-1～ 100-4 connects.First～the 4th terminal group TG1～TG4 be respectively provided with for accessing first～the 4th Multiple storages of storage device 203-1～203-4 that printing material containing body 100-1～100-4 is had Device terminal CRST, CSCK, CVDD, CVSS, CSDA.It addition, first～the 4th end Subgroup TG1～TG4 be respectively provided with for detection first～the 4th printing material containing body 100-1～ Installation detection terminal CDT1, CDT2 of the installation of 100-4.

The first terminal group TG1 is configured in the first end edge side of circuit substrate 450, and the 4th (broadly Say it is n-th) terminal group TG4 is configured in second end relative with the first end edge of circuit substrate 450 Avris.First～the 4th the second (broad sense in (being n-th in a broad sense) terminal group TG1～TG4 It is i-th that ground is said the integer of 1 ＜ i ＜ n-1 (i be))～the 3rd (be that (j is i ＜ j ＜ n to jth in a broad sense Integer)) terminal group TG2, TG3 be commonly connected to control by the bus terminals of bus MBS Portion 300 processed.It addition, the bus terminals of the first terminal group TG1 and bus MBS discretely with control Portion 300 connects.It addition, the 4th (being n-th in a broad sense) terminal group TG4 and bus MBS Bus terminals is connected with control portion 300 discretely.

As shown in Figure 4, in the printing equipment of the first configuration example, it is configured in circuit substrate 450 The first terminal group TG1 of the first end edge side and be configured in the second end edge side relative with the first end edge The 4th terminal group TG4 be connected with control portion 300 discretely with bus MBS respectively.That is, One, the storage device terminal RST of the 4th printing material containing body 100-1,100-4, SCK, VDD, VSS, SDA and the storage device end of other printing material containing body 100-2,100-3 Sub-RST, SCK, VDD, VSS, SDA are connected with control portion 300 discretely.

In the printing equipment of such as ink-jetting style, when ink sprays from print head, of ink It is divided into vaporific (smog) to be dispersed in air.Owing to this ink mist is centered around circuit substrate 450 End edge side, therefore compared with printing material containing body 100-2,100-3 of separating from end edge, is positioned at end There is the terminal caused due to the attachment of ink mist in printing material containing body 100-1,100-4 of avris Between short circuit probability bigger.

In the printing equipment of the first configuration example, even if being positioned at the printing material containing body of end edge side In the case of 100-1,100-4 are short-circuited, due to itself and other printing material containing body 100- 2,100-3 separates, and also therefore is able to prevent to control portion 300 and other printing material containing body Storage communication between device 203-2,203-3 produces impact.It addition, be prevented from installing detection Time apply high voltage etc. to storage device 203-2,203-3.As a result of which it is, can reliably and safely Carry out the installation detection etc. of printing material containing body 100-1～100-4.

Fig. 5 shows the printing material containing body in the printing equipment of present embodiment and circuit base Second configuration example of plate etc..Second configuration example includes the first printing material containing body 100-1～the 6th (be n-th in a broad sense the integer of more than 2 (n be)) printing material containing body 100-6, control portion 300 and circuit substrate 450.Additionally, the printing equipment of present embodiment is not limited to the structure of Fig. 4 Become, it is possible to implemented by following various deformation, as omitted a part for its element, changing it into His element, add other element etc..

Printing material containing body 100-1～100-6 is respectively provided with the storage device of memory print material information 203 (203-1～203-6), multiple storage device terminal RST, SCK, VDD, VSS, SDA, installation detection terminal DT1, DT2 and short-circuit detecting terminal CO1, CO2.At DT1 And between DT2, it is provided with installation detection resistance element RD.CO1, CO2 accommodate at printing material The inside of body 100 is electrically connected by wiring.

Control portion 300 and first～the 6th multiple storage dress of printing material containing body 100-1～100-6 Put and connect with terminal RST, SCK, VDD, VSS, SDA, storage device 203 is carried out data Read or write control.

First～the 6th in printing material containing body 100-1～100-6 second (is i-th in a broad sense The integer of 1 ＜ i ＜ n-1 (i be))～the 5th (being the jth integer of i ＜ j ＜ n (j be) in a broad sense) Respective multiple storage device terminal RST of printing material containing body 100-2～100-5, SCK, VDD, VSS, SDA are jointly connected with control portion 300 by bus MBS.First printing material Material containing body 100-1 multiple storage device terminal RST, SCK, VDD, VSS, SDA with Bus MBS is connected with control portion 300 discretely.6th (being n-th in a broad sense) printing material holds Receive multiple storage device terminal RST, SCK, VDD, VSS, SDA of body 100-6 and bus MBS is connected with control portion 300 discretely.

Second (being i-th in a broad sense)～the 5th (being jth in a broad sense) printing material containing body Installation detection terminal DT1, DT2 of 100-2～100-5 are jointly connected with control portion 300.Specifically Ground is said, second (being the kth integer of i≤k≤j-2 (k be) in a broad sense) printing material containing body Installation detection terminal DT1, DT2 of 100-2 and the 4th (being kth+2 in a broad sense) printing material Installation detection terminal DT1, DT2 of containing body 100-2 are jointly connected with control portion 300.Separately Outward, installation detection terminal DT1, DT2 and the 5th of the 3rd printing material containing body 100-3 prints material Installation detection terminal DT1, DT2 of material containing body 100-5 are jointly connected with control portion 300.

Circuit substrate 450 is printing equipment circuit substrate, and it is provided with control portion 300, and includes First～the 6th the bus of (being n-th in a broad sense) terminal group TG1～TG6 and bus MBS connect Line.First～the 6th terminal group TG1～TG6 and first～the 6th printing material containing body 100-1～ 100-6 connects.First～the 6th terminal group TG1～TG6 be respectively provided with for accessing first～the 6th Multiple storages of storage device 203-1～203-6 that printing material containing body 100-1～100-6 is had Device terminal CRST, CSCK, CVDD, CVSS, CSDA.It addition, first～the 6th end Subgroup TG1～TG6 be respectively provided with for detection first～the 6th printing material containing body 100-1～ Installation detection terminal CDT1, CDT2 of the installation of 100-6.

The first terminal group TG1 is configured in the first end edge side of circuit substrate 450, and the 6th (broadly Say it is n-th) terminal group TG6 is configured in second end relative with the first end edge of circuit substrate 450 Avris.First～the 6th the second (broad sense in (being n-th in a broad sense) terminal group TG1～TG6 It is i-th that ground is said the integer of 1 ＜ i ＜ n-1 (i be))～the 5th (be that (j is i ＜ j ＜ n to jth in a broad sense Integer)) terminal group TG2～TG5 by the bus terminals of bus MBS jointly with control portion 300 connect.It addition, the bus terminals of the first terminal group TG1 and bus MBS discretely with control Portion 300 connects.It addition, the 6th (being n-th in a broad sense) terminal group TG6 and bus MBS Bus terminals is connected with control portion 300 discretely.

In the same manner as the first above-mentioned configuration example, in the printing equipment of the second configuration example, it is configured in The first terminal group TG1 of the first end edge side of circuit substrate 450 and being configured in and the first end edge phase To the second end edge side the 6th terminal group TG6 respectively with bus MBS discretely with control portion 300 Connect.That is, the storage device terminal of the first, the 6th printing material containing body 100-1,100-6 RST, SCK, VDD, VSS, SDA are with other printing material containing body 100-2's～100-5 Storage device is with terminal RST, SCK, VDD, VSS, SDA discretely with control portion 300 even Connect.

So, even if owing to the reasons such as ink mist are being positioned at the printing material containing body 100-of end edge side 1, in the case of 100-6 there occurs the short circuit between terminal, due to the printing material containing body with other 100-2～100-5 separates, and also therefore is able to prevent control portion 300 and storage device 203-2～203- Communication between 5 produces impact.It addition, be prevented from install detection time to storage device 203-2～ 203-5 applies high voltage.As a result of which it is, printing material containing body can reliably and safely be carried out The installation detection of 100-1～100-6.

It addition, for the printing material containing body in addition to the printing material containing body being positioned at end edge side 100-2～100-5, owing to being jointly connected with control portion 300 by bus MBS, therefore, it is possible to simple Change the circuit composition etc. in control portion 300.

Additionally in the second configuration example, it is positioned at printing material containing body 100-1,100-6 of end edge side The installation inspection of detection terminal DT1, DT2 and other printing material containing body 100-2～100-5 is installed Survey terminal DT1, DT2 to be connected with control portion 300 discretely.Therefore, it is possible to be reliably positioned at The installation detection of printing material containing body 100-1,100-6 of end edge side.

2. the composition of circuit

Fig. 6 shows the basic configuration example of the electric composition of the printing equipment in present embodiment. The printing equipment of this configuration example includes printing material containing body (box) 100, circuit substrate 450, controls Portion 300, master control part 400, LVPS 441, high-voltage power supply 442 and display part 430.Control portion 300 includes short-circuit detecting portion 310, voltage application portion 320, installs test section 330, CO (box is extracted) test section 340 and communication processing section 350.Additionally, present embodiment Printing equipment be not limited to the composition of Fig. 1, it is possible to implemented by following various deformation, as omitted it The part of element, change other element into, add other element etc...

A printing material containing body 100 is shown in figure 6 as an example, but this composition The printing equipment of example can comprise multiple printing material containing body 100.That is, printing equipment includes respectively Have the storage device 203 of memory print material information and multiple storage device terminal RST, The first of SCK, VDD, VSS, SDA～n-th integer of more than 2 (n be) printing material holds Receive body 100-1～100-n.It addition, also include with the first～n-th printing material containing body 100-1～ Multiple storage device terminals of 100-n connect, and storage device 203 is carried out data reading or The control portion 300 of the control of person's write.

Circuit substrate 450 includes each terminal of terminal group and the electric connecting terminal subgroup with 9 terminals Multiple wiring with control portion 300.Specifically, terminal group includes reseting terminal CRST, clock Terminal CSCK, power supply terminal CVDD, ground terminal CVSS, data terminal CSDA, first Detection terminal CDT1, the second installation detection terminal CDT2, the first short-circuit detecting terminal CCO1 are installed And the second short-circuit detecting terminal CCO2.Circuit substrate 450 arranges (installation) and has control portion 300。

Control portion 300 includes communication processing section 350, and control portion 300 is right together with master control part 400 Storage device 203 carries out reading or the control of write of data.Such as, enter in master control part 400 In the case of row is to the write of the data of storage device 203 or the control of reading, communication processing section 350 carry out writing the relaying etc. of the communication of data or reading data.It addition, control portion 300 includes Install test section 330, CO test section 340, short-circuit detecting portion 310, voltage application portion 320 and High voltage control portion 360, carries out installing detection, CO detection, short-circuit detecting and high-tension section Disconnected grade processes.Control portion 300 can be come by the logic circuit being such as made up of CMOS transistor etc. Realize, it is also possible to be the IC apparatus of single-chip.

Master control part 400 includes that CPU410 and memorizer 420, master control part 400 are carried out at printing The control of reason.It addition, master control part 400 is via carrying out necessity between bus B US and control portion 300 Communication.In the configuration example shown in Fig. 6, control portion is divided into master control part 400 and control portion 300, but can also constitute as a control portion.

Display part 430 for carrying out operating state and the installation of box of printing equipment 1000 to user The various notice such as state.Display part 430 is arranged on the operating portion 1300 of such as Fig. 1.

LVPS 441 generates LVPS voltage (the first supply voltage) VDD.First electricity Source voltage VDD is the common supply voltage (rated voltage 3.3V) that logic circuit is used.High Voltage source 442 generates high-voltage power supply voltage (second source voltage) VHV.Second source voltage VHV is for driving print head to make it spray the high voltage of ink (such as rated voltage 42V), also To first, the installation detection pressure VHO that detection terminal DT1 applies is installed for generating.These electricity Pressure VDD, VHV are provided to control portion 300, it addition, be also provided to other electricity as required Road.Specifically, such as high-voltage power supply voltage VHV is supplied to control from high-voltage power supply 442 The voltage application portion 320 in portion 300 processed, from the installation detection pressure of voltage application portion 320 output VHO is provided to the first installation detection terminal DT1 of box 100 and installs test section 330.Install Detection pressure VHO ratio is provided to store the hot side supply voltage of device 203 (such as 3.3V) high.

Among upper nine terminals arranged of substrate 200 (Fig. 3) of printing material containing body 100, Reseting terminal RST, clock terminal SCK, power supply terminal VDD, data terminal SDA and ground connection Terminal VSS electrically connects with storage device 203.Storage device 203 is following non-volatile memories Device: not there is address terminal, umber of pulse based on the clock signal inputted from clock terminal SCK and from The director data of data terminal SDA input determines the memory cell accessed, and and clock signal Synchronously receive data from data terminal SDA or send data from data terminal SDA.Clock end Sub-SCK is for providing clock signal from control portion 300 to storage device 203.

From printing equipment 1000 for drive storage device 203 supply voltage (such as 3.3V) it is supplied to power supply terminal VDD and ground terminal VSS with ground voltage (0V). For driving the supply voltage of this storage device 203 to be based on LVPS 441 by control portion 300 Generate and provide.

Data terminal SDA is for exchange data signals between control portion 300 and storage device 203. Reseting terminal RST is for providing reset signal from control portion 300 to storage device 203.

At detection printing material containing body 100 whether first, second install detection terminal DT1, DT2 It is properly installed to during box installation portion 1100 use.First, detection terminal DT1 and second is installed Install and between detection terminal DT2, be provided with installation detection resistance element RD.Test section 330 is installed Press VHO based on the installation detection exported from voltage application portion 320 and flow through installation detection The electric current of resistance element RD detects the installation of printing material containing body 100.Specifically, by inciting somebody to action The first installation detection terminal is put on from the installation detection pressure VHO of voltage application portion 320 output DT1, installation detection resistance element RD are applied in voltage thus flow through electric current, and examined by installation This electric current detects to detect installation in survey portion 330.The method that this installation is detected, after carry out in detail Explanation.

First, second short-circuit detecting terminal CO1, CO2 is at printing material containing body 100 (specifically Say it is substrate 200) inside electrically connected by wiring.CO test section 340 is as will be described later, logical Cross the electrically conducting between detection CO1 and CO2, it is possible to whether detection CO1 and CO2 pacifies with box The corresponding terminal in dress portion 1100 makes electrical contact with respectively, i.e. can detect printing material containing body 100 Whether it is improperly seated.But, in the printing equipment of present embodiment, it is provided with first, Two install detection terminal DT1, DT2 and install test section 330, by them can be used to detect The installation of print cartridge 100, therefore, it is possible to omit CO test section 340.When eliminating CO test section 340 Time, or when not performing installation detection (detection extracted by box) employing CO test section 340, can Not make CO1 and CO2 electrically connect.

Additionally, in the following description, the installation detection carried out by installing test section 330 is referred to as " installing detection ", the installation detection carried out by CO test section 340 is referred to as " detection extracted by box " Or " CO detection ".

It is provided with two between first, second short-circuit detecting terminal CO1, CO2 and detection node ND Pole pipe D1, D2, but when not carrying out CO detection (detection extracted by box), can be not via two Pole is managed and CO1, CO2 is directly connected to detection node ND.

Short-circuit detecting portion 310 and the first short-circuit detecting terminal CO1 and the second short-circuit detecting terminal CO2 is directly connected to, or via diode D1, D2 (being given component in a broad sense) Connect.The most such as, voltage and reference voltage of based on detection node ND relatively detect due to At least one in first, second short-circuit detecting terminal CO1, CO2 installs detection with first, second The short circuit between at least one in terminal DT1, DT2 causes to first, second short-circuit detecting terminal CO1, CO2 are applied with the high voltage (applying of abnormal voltage) that originally will not apply.That is, inspection is worked as When surveying the voltage ratio reference voltage height of node ND, detect short circuit (abnormal voltage).Short-circuit detecting High voltage control portion 360 output short-circuit is detected signal VSHT when detecting short circuit by portion 310, high Voltage control division 360 exports control signal based on short-circuit detection signal VSHT to voltage application portion 320 VCNT.Voltage application portion 320 is stopped based on control signal VCNT from high voltage control portion 360 Only provide and detection pressure VHO is installed.

Here, reference voltage is set in the case of there occurs above-mentioned short circuit not destroy storage dress Put 203 magnitude of voltage of circuit such as (or) CO test sections 340.Thus, short-circuit detecting portion 310 Can be before the voltage of detection node ND arrives the magnitude of voltage of the circuit destroying storage device 203 grade Detect short circuit.

Communication processing section 350 has output circuit OB1～OB4 and imput output circuit IOB.Defeated Go out reseting terminal CRST, clock end that circuit OB1～OB4 is arranged respectively on circuit substrate 450 Sub-CSCK, power supply terminal CVDD, ground terminal CVSS output signal or voltage.It addition, Imput output circuit IOB carries out data signal to data terminal CSDA arranged on circuit substrate 450 Input and output.Reseting terminal CRST, clock terminal CSCK, power supply terminal CVDD, ground connection Terminal CVSS, data terminal CSDA respectively with printing material containing body 100 on arrange reset terminal Sub-RST, clock terminal SCK, power supply terminal VDD, ground terminal VSS, data terminal SDA Connect.It is discussed below the detailed structure of output circuit OB1～OB4 and imput output circuit IOB Become.

As shown in (A) of front Fig. 3, the first short-circuit detecting terminal CO1 and first installs detection terminal It is adjacent that DT1 is adjacent, the second short-circuit detecting terminal CO2 and second installs detection terminal DT2.Cause This, the such as ink etc. due to electric conductivity is attached to the terminals side of substrate 200, the most adjacent two Terminal CO1 and DT1 or CO2 and DT2 existence (is leaked owing to the ink etc. of electric conductivity is short-circuited Electricity) probability.It addition, it is short with power supply terminal VDD to there is also the first installation detection terminal DT1 Road, the second probability short-circuit with data terminal SDA for installation detection terminal DT2.

As it has been described above, when carrying out installing detection by installation test section 330, install detection pressure VHO is applied in the first installation detection terminal DT1.Therefore, first, second, test side is installed Sub-DT1, DT2 and first, second short-circuit detecting terminal CO1, CO2 due to electric conductivity ink etc. and In the case of there occurs short circuit (electric leakage), exist when installing detection and apply to CO test section 340 High-tension probability.It addition, install detection terminal DT1, DT2 and power end first, second In the case of sub-VDD or the short circuit of data terminal SDA, exist and apply high electricity to storage device 203 The probability of pressure.

According to the printing equipment of present embodiment, there is generation between short-circuit detecting portion 310 detection terminal short The probability on road, is being tested with it may happen that in the case of short circuit, voltage application portion 320 can be stopped Only provide and detection pressure VHO is installed.

Specifically, such as shown in the B1 of Fig. 6, when DT1 Yu CO1 short circuit, from DT1 to CO1, and then flow through the positive direction electric current of diode D1, its result to detection node ND from CO1 It is that the current potential of detection node ND rises.It addition, as shown in the B2 of Fig. 6, as DT2 and CO2 During short circuit, from DT2 to CO2, and then just flowing through diode D2 from CO2 to detection node ND Directional current, as a result of which it is, the current potential of detection node ND rises.Short-circuit detecting portion 310 by than The relatively voltage of this detection node ND and reference voltage are capable of detecting when short circuit.

It addition, according to the printing equipment of present embodiment, control portion 300 voltage application portion 320 to By multiple storage device ends during the first installation detection terminal DT1 applying installation detection pressure VHO Son (memorizer terminal) RST, SCK, VDD, VSS, SDA is set as that high impedance status is (outstanding Dummy status).Thus, even if such as at DT1 Yu CO1 and VDD or DT2 and CO2 And in the case of SDA there occurs short circuit, apply high electricity when installing detection to storage device 203 Before pressure, short-circuit detecting portion 310 detects and is applied with overvoltage, control portion 300 base to node ND Stop providing in this and detection pressure VHO is installed, therefore, it is possible to prevent from applying to deposit to storage device 203 The voltage more than maximum rated voltage of storage device 203.

When master control part 400 reads data from storing device 203 or writes number to storage device 203 According to time, master control part 400 indicates the communication processing section 350 in control portion 300 will be many before access starts The state of the terminal of individual storage device terminal RST, SCK, VDD, VSS, SDA is from high impedance State is set as that earth level (GND level, VSS level, is fixing voltage electricity in a broad sense Flat).Then, after multiple storage device terminals are set to earth level, master control part 400 carry out reading or the write of data via communication processing section 350 to storage device 203.

Specifically, after multiple storage device terminals are set as earth level, by communication Multiple storage device terminals are controlled to be predetermined voltage level by process portion 350 from earth level, from And master control part 400 carries out reading or the write of data to storage device 203.Thus, performing To storage device 203 write or read before, it is possible to all of memorizer terminal is set as with One current potential, therefore, it is possible to obtain stable memorizer action.The most predetermined voltage level refers to The voltage level performing reading or writing of data and apply to each storage device terminal respectively.

Will storage device with terminal RST, SCK, VDD, VSS, SDA to high impedance status or The setting of fixing voltage level is to be carried out by communication processing section 350.Specifically, by output Circuit OB1～OB4 and imput output circuit IOB by terminal CRST, CSCK, CVDD, CVSS, CSDA are set as high impedance status or fixing voltage level, thus store device end Sub-RST, SCK, VDD, VSS, SDA are respectively set at high impedance status or fixing electricity Voltage level.Fixing voltage level is such as earth level (GND level, 0V) but it also may It it is other voltage level.

Voltage application portion 320 carries out the reading of data in control portion 300 to storage device 203 or writes Enter and stop before applying detection pressure VHO is installed.Thus, the reading to storage device 203 is being performed Go out or in ablation process, detection pressure VHO is installed and is not applied to detection terminal is installed DT1, DT2, therefore, it is possible to suppress the generation of the noise caused by VHO.As a result of which it is, can subtract Few communication mistake caused due to noise and memory error etc..

It addition, after storage device 203 is terminated reading or the write of data by control portion 300, Multiple storage device terminals are set to earth level (being fixing voltage level in a broad sense). Then, after multiple storage device terminals are set to earth level, voltage application portion 320 is to One installs detection terminal DT1 applies to install detection pressure VHO, multiple storage device terminal quilts It is set as high impedance status.Thereby, it is possible to except to storage device 203 reading or write with The outer time carries out installing detection.

So, according to the printing equipment of present embodiment, though attached due to printing materials such as inks Etc. in the case of causing and there occurs short circuit between terminal, it is also possible to reduce when installing detection to storage dress Put the 203 high-tension probabilities of applying.It addition, will be able to store before accessing storage device 203 Device terminal is set as same current potential, stops high-tension applying in access process.As a result of which it is, energy Enough realize reliable and secure installing to detect and the memory access of high reliability.

Fig. 7 shows the configuration example of the circuit associated with short-circuit detecting and installation detection.In Fig. 7 Shown configuration example include four print cartridges (printing material containing body) 100-1～100-4 (IC1～ IC4).Additionally, the number of print cartridge is not limited to four, it is also possible to be two, three or five Above.

Each print cartridge IC1～IC4 has the composition identical with the box shown in Fig. 6, therefore omits detailed Explanation.It addition, as the composition in control portion 300 also with the composition shown in Fig. 6 is.But, In Fig. 7, for convenience of description, CO test section 340 is divided into CO test section (outlet side) 340a and CO test section (input side) 340b illustrates.Additionally, CO test section 340a, 340b Logic circuit and the analog circuit that can consist of such as CMOS transistor etc. realize.

In the case of printing equipment includes multiple print cartridge, multiple print cartridges (such as IC1～IC4) each The first short-circuit detecting terminal CO1 and the second short-circuit detecting terminal CO2 of individual print cartridge are via multiple two Pole tube elements (such as D1～D5) is connected with the detection node ND in a short-circuit detecting portion 310. Specifically, the most in the figure 7, the CO1 of IC1 is via diode D1, the CO2 of other IC1 With the CO1 of IC2 via the CO1 of CO2 and IC3 of diode D2, IC2 via diode D3 It is connected with detection node ND respectively.The negative electrode (negative pole) of each diode is with detection node ND even Connect.Thus, short-circuit detecting portion 310 can be pulled out not hindering the box carried out by CO test section 340 Short-circuit detecting is carried out in the case of going out detection.

Short-circuit detecting portion 310 is based on the detection voltage of node ND and relatively examining of reference voltage Survey.That is, detect that when the voltage detecting node ND becomes higher than reference voltage short circuit is (abnormal electric Pressure).High voltage control portion 360 output short-circuit is detected by short-circuit detecting portion 310 when detecting short circuit Signal VSHT, high voltage control portion 360 based on short-circuit detection signal VSHT to voltage application portion 320 output control signals VCNT.Voltage application portion 320 is based on from high voltage control portion 360 Control signal VCNT stops providing installs detection pressure VHO.

Resistive element RB1～RB4 detects for the installation carried out by installing test section 330, and point Not there is mutually different resistance value.Thereby, it is possible to detect and at which pacify among box IC1～IC4 Print cartridge it is fitted without on holding position.The method detected about this installation is discussed in detail below.

The box carried out by CO test section 340 (340a, 340b) extracts detection in the following way Carry out.In the case of four print cartridges are all mounted, as it is shown in fig. 7, from first short circuit of IC1 The second short-circuit detecting terminal CO2 of detection terminal CO1 to IC4 becomes electrically conducting state.Cause This, from the signals DP ins of CO test section (outlet side) 340a output by the (input of CO test section Side) 340b detects as signals DP res.On the other hand, among four print cartridges even one not In the case of Bei Anzhuan, owing to being non-electrically conducting, therefore CO test section (input side) 340b is also Can't detect signals DP res.So, whether detected by CO test section (input side) 340b Signals DP res is capable of detecting when that box is extracted.

Fig. 8 is that installing in the printing equipment of present embodiment is detected and the flow process of memory access Figure.As it has been described above, in the printing equipment of present embodiment, the storage dress arranged on print cartridge 100 Put storage in 203 and have ink information (such as, the manufacturing information of the used ink amount in print cartridge, print cartridge Deng).This ink information at the ink in the cleaning and print cartridge of injector head owing to performing printing By master control part 400 via control when consuming the power-off etc. of predetermined unit amount or printing equipment Portion 300 is written to store device 203.It addition, amount information is when the power on of printing equipment Read from storage device 203 via control portion 300 by the request of master control part 400.This flow process It is performed by master control part 400 and the control in control portion 300.

During except accessing memorizer, after the power on of printing equipment, master control part 400 and control Memorizer terminal is set as high impedance status by portion 300 processed all the time.It addition, hold all the time or termly Row installs detection and CO detects.Additionally, CO detection (detection extracted by box) is in memory access Journey is also carried out.

When master control part 400 starts memory access, first, stop detection being installed.I.e. stop executing Add VHO and carry out installing the process (step SP1) of detection.

In step SP2, memorizer terminal is set as GND level from high impedance status HZ (earth level, VSS level).At this moment, at CO terminal (CO1 or CO2) and memorizer In the case of there occurs short circuit (between such as CO1-VDD, between CO2-SDA) between terminal, CO Test section 340 is capable of detecting when short circuit.

In step SP3, it is judged that printing material containing body 100 is the most normal.I.e. judge printing material Whether whether containing body 100 is properly installed, and be not short-circuited between terminal.Before when normal Step SP4 after entering, error process when abnormal.Fault processing is such as in display Portion 430 shows the process of error message etc..

In step SP4, carry out the memory access to storage device 203.I.e. control portion 300 to Each memorizer terminal provides the signal and supply voltage needed, and storage device 203 is carried out data Write process or readout process.

In step SP5, it is judged that whether memory access is normally performed.Specifically, writing Fashionable, control portion 300 to storage device 203 have sent write instruction and write data after pre- Fixed timing, sends write from storage device 203 to control portion 300 and completes signal.Should by receiving Having write signal, control portion 300 judges whether to have normally completed memory access.Reading Time, owing to being attached with verification from the data being sent to control portion 300 that storage device 203 reads Position, therefore by carry out even-odd check can determine that from storage device 203 read data the most just Often.In the case of memory access is normal, proceeds to step SP6, performs in the case of abnormal Fault processing.

At the end of memory access is normally, in step SP6, memorizer terminal is set as GND level.Here, it is possible to carry out the box by CO test section 340 is carried out and extract detection.At this moment In the case of there occurs short circuit (such as CO1-VDD, CO2-SDA) between terminal, CO detects Portion 340 is capable of detecting when short circuit.

In step SP7, apply detection pressure is installed to installing detection terminal DT1, DT2 VHO thus restart install detection.

In step SP8, memorizer terminal is set as high impedance status HZ.Here, at terminal Between there occurs short circuit (such as DT1-CO1, DT2-CO2) in the case of, short-circuit detecting portion 310 energy Enough detect short circuit.

As illustrated in the flowchart of Figure 8, according to the printing equipment of present embodiment, connect at printing equipment During power supply, performing to install detection all the time and CO detects, detection box is the most mounted and box is No it is improperly seated.When memory access, stop applying VHO, when reducing memory access Noise, and just in case install detection terminal DT1, DT2 be short-circuited with memorizer terminal, it is possible to VHO is prevented to be applied in memorizer terminal.

By memorizer terminal being set as high impedance status when not accessing memorizer, additionally for such as Fruit installs detection terminal DT1, DT2 and short-circuit detecting terminal CO1, CO2 short circuit, then memorizer Terminal is likely to and installs the reason of detection terminal DT1, DT2 short circuit and stop applying VHO, from And VHO can be reduced and be applied in the probability of storage device 203.As a result of which it is, can hold Row realizes the memory access of high reliability while installing detection.

Though additionally, eliminate detailed description, change print cartridge time all the time perform install detection and Detection extracted by box, but due to when changing, the memorizer terminal of print cartridge and the offer of printing equipment The terminal of VHO has the probability contactd by mistake, and therefore control portion 300 is according to the instruction of master control part 400 Each terminal (RST, SCK, SDA, VDD, VSS) of memorizer is set as earth level from And the protection of memorizer when carrying out the detection of box under high voltage.

(A) of Fig. 9～(D) of Fig. 9 show output circuit OB1～OB4 and input The detailed configuration example of output circuit IOB.(A) of Fig. 9 is the configuration example of OB1, OB2, figure (B) of 9 is the configuration example of OB4, and (C) of Fig. 9 is the configuration example of OB3, (D) of Fig. 9 It it is the configuration example of IOB.Additionally, output circuit OB1～OB4 of present embodiment and input defeated Go out circuit I OB and be not limited to (A) of Fig. 9～the composition of (D) of Fig. 9, it is possible to by following Various deformation are implemented, as omitted a part for its element, changing other element into, chase after Add other element etc..

As shown in (A) of Fig. 9, output circuit OB1, OB2 include P-type transistor TP1, TP2 and N-type transistor TN1, TN2, TN3.TP1, TN1 are used for preventing static discharge (ESD) element caused destroys (electrostatic breakdown).TP2, TN2 controlled signal S1 respectively, S2 controls, and terminal CSCK (or CRST) is set as high level, low level or high impedance State.Specifically, when S1, S2 are low level, terminal CSCK (CRST) is set to High level, when S1, S2 are high level, terminal CSCK (CRST) is set to low level, When S1 is high level, S2 is low level, terminal CSCK (CRST) is set to high impedance shape State.TN3 controlled signal S3 controls, and time normal, S3 is low level, but is such as detecting height During the exception of voltage etc., S3 becomes high level, and TN3 is as by under terminal CSCK (CRST) Move low level amplification buffer to and carry out action.

As shown in (B) of Fig. 9, output circuit OB4 includes the p-type that controlled signal S4 controls Transistor TP4 and N-type transistor TN4.The terminal CVSS when control signal S4 is high level Being set to VSS level (earth level), when S4 is low level, terminal CVSS is set to High impedance status.TP4 is the element preventing electrostatic breakdown, and additionally TN4 also serves as preventing electrostatic from breaking The element of bad use carries out action.

As shown in (C) of Fig. 9, output circuit OB3 includes the p-type that controlled signal S5 controls N-type transistor TN5 that transistor TP5 and controlled signal S6 controls.When control signal S5, When S6 is low level, terminal CVDD is set to VDD level, when S5, S6 are high level Shi Duanzi CVDD is set to VSS level.It addition, when S5 is high level and S6 is low level Shi Duanzi CVDD is set to high impedance status.Additionally, TP5, TN5 also serve as preventing electrostatic from breaking The element of bad use carries out action.

As shown in (D) of Fig. 9, imput output circuit IOB include P-type transistor TP6, TP7, TP11 and N-type transistor TN6, TN7, TN8, TN11.TP6, TN6 are to prevent The element of electrostatic breakdown.TP7, TN7 controlled signal S7, S8 respectively control.Specifically, When S7, S8 are low level, terminal CSDA is set to high level, when S7, S8 are high electricity Terminal CSDA is set to low level at ordinary times, terminal when S8 is low level when S7 is high level CSDA is set to high impedance status.It addition, TP11 and TN11 constitutes transmission gate circuit (mould Intend switch), it is switched on by control signal S11, S12 or disconnects.Specifically, terminal is worked as When CSDA is used as lead-out terminal, S11 is set to high level, S12 is set to low level thus Transmission gate circuit becomes off-state.On the other hand, when terminal CSDA is used as input terminal, S11 is set to low level, S12 is set to high level thus transmission gate circuit becomes connection shape State, the data signal being input to terminal CSDA can pass through transmission gate circuit.

Thus, by (A) of Fig. 9～output circuit OB1～OB4 of (D) of Fig. 9 and Imput output circuit IOB, it is possible to install detection time by memorizer terminal RST, SCK, VDD, VSS, SDA are set as high impedance status, are set as VSS level (broad sense before accessing memory Ground says it is fixing voltage level).Additionally, control signal S1～S9, S11, S12 are by controlling portion 300 generate according to the above-mentioned flow process (Fig. 8) installing detection and memory access.

Figure 10 illustrates the detailed configuration example of short-circuit detecting portion 310 and voltage application portion 320.Short circuit Test section 310 includes comparator CMP and resistive element RS.It addition, voltage application portion 320 is wrapped Include P-type transistor TP.Additionally, the short-circuit detecting portion 310 of present embodiment and voltage application portion 320 compositions being not limited to Figure 10, it is possible to implemented by following various deformation, are constituted as omitted it The part of key element, change other element into, add other element etc...

As it has been described above, owing to being short-circuited, abnormal voltage is applied in short-circuit detecting terminal When CO1, CO2, produce than ground voltage (low potential side supply voltage) at detection node ND The voltage that VSS (such as 0V) is high.The voltage of detection node ND is applied in comparator CMP's One input terminal (+).It addition, another input terminal of comparator CMP (-) be applied in Reference voltage VREF.

When input terminal (+) voltage ratio reference voltage VREF low time, comparator CMP output low Level (low level) as short-circuit detection signal VSHT, when input terminal (+) voltage Time higher than reference voltage VREF, output high level (high potential level) is as short-circuit detection signal VSHT.Therefore, when there occurs short circuit, the voltage of detection node ND becomes to compare reference voltage VREF is high, and therefore short-circuit detection signal VSHT is set to high level.Reference voltage VREF quilt It is set as when there occurs short circuit destroying the magnitude of voltage of storage device 203 grade.

When short-circuit detecting portion 310 detects short circuit, i.e. short-circuit detection signal VSHT becomes from low level When turning to high level, high voltage control portion 360 makes control signal VCNT be changed to high electricity from low level Flat.

The source electrode of the P-type transistor TP of voltage application portion 320 is with high-voltage power supply node VHV even Connect, grid is inputted control signal VCNT from high voltage control portion 360.Work as control signal When VCNT is low level, transistor TP is to turn on state, therefore installs detection from drain electrode output Pressure VHO.On the other hand, when control signal VCNT is high level, i.e. detecting short circuit In the case of transistor TP go off state, therefore high-tension offer is provided.Therefore, short circuit is worked as When test section 310 detects short circuit, control signal VCNT from high voltage control portion 360 is set Being set to high level, transistor TP goes off state, installs detection use as a result of which it is, stop providing Voltage VHO.

Once stop providing and detection pressure VHO is installed, the first installation of printing material containing body 100 Detection terminal DT1 is no longer applied in high voltage, therefore short due to terminal DT1 and terminal CO1 Road and detect the voltage of detection node ND when the voltage of node ND uprises and drop to low level.This Time, short-circuit detection signal VSHT becomes low level again, but high voltage control portion 360 will control Signal VCNT remains continuously high level.Thereby, it is possible in the case of there occurs short circuit between terminal Detect short circuit and stop providing high voltage.

3. the method installing detection

(A) of Figure 11, (B) of Figure 11 are the print cartridges in the printing equipment that present embodiment is described The figure of the method installing detection of (printing material containing body).In (A) of Figure 11, it is shown that The state that box IC1～IC4 of the box installation portion 1100 that can be installed on printing equipment is all installed. The resistance value of the installation detection resistance element RD of four box IC1～IC4 is set to identical value R.And it is provided with the resistive element that installation detection resistance element RD with each box respectively is connected in series RB1～RB4.The resistance value of these resistive elements RB1～RB4 is set to mutually different value. Specifically, among these resistive elements RB1～RB4, with n-th (n=1～4) individual box ICn The resistance value of corresponding resistive element RBn is set to (2ⁿ-1) R (R is fixed value).Its knot Fruit is, by the installation detection resistance element RD in the n-th box and the series connection of resistive element RBn Connect formation and there is resistance value 2ⁿThe resistance of R.For n-th (n=1～N) individual box 2ⁿThe resistance of R It is mounted opposite test section 330 to be connected in parallel with each other.Also will be hindered by installing detection additionally, following Combined resistance 701～704 letter that element RD and resistive element RB1～RB4 is connected in series and is formed It is referred to as " resistance ".

When the bias voltage that will install test section 330 is as VREF, examine installing test section 330 The detection electric current I measured_DETIt is that voltage (VHO-VREF) is divided by these four resistance 701～704 Combined resistance value Rc and value (VHO-VREF)/Rc of obtaining.Here, when setting the number of box as N Time, when N number of box is all mounted, detect electric current I_DETIt is given by.

[several 1]

$I_{\mathrm{DET}}=\frac{\mathrm{VHO}-\mathrm{VREF}}{R_c}---\left(1\right)$

[several 2]

$R_c=R\frac{1}{{\mathrm{\Σ}}_{j=1}^N\frac{1}{2^j}}---\left(2\right)$

If there being more than one box not to be mounted, then correspondingly in combined resistance value Rc Rise, detect electric current I_DETDecline.

(B) of Figure 11 shows installment state and the detection electric current I of box IC1～IC4_DETPass System.The transverse axis of figure shows 16 kinds of installment states, and the longitudinal axis shows the inspection under these installment states Survey electric current I_DETValue.16 kinds of installment states with from four box IC1～IC4, at random select 1～4 Individual and obtain 16 combination correspondences.Additionally, each combination these combined is referred to as " son Collection ".Detection electric current I_DETIt it is the current value that can uniquely identify these 16 kinds of installment states.Change speech It, set with the resistance value of each of four corresponding for box IC1～IC4 four resistance 701～704 It is set to the 16 kinds of installment states that can obtain so that four boxes and is endowed mutually different combined resistance value Rc。

If four all installment states of box IC1～IC4, then detection electric current I_DETMaximum for it Value Imax.On the other hand, do not pacified at the box IC4 that only maximum with resistance value resistance 704 is corresponding Under the state of dress, detect electric current I_DETFor maximum Imax 0.93 times.Therefore, if checking inspection Survey electric current I_DETBe whether as the two current value between the threshold current that is preset of value More than Ithmax, then just can detect four box IC1～IC4 and the most all be mounted.Additionally, The voltage higher than the supply voltage of common logic circuit (about 3.3V) is used in order to install detection The reason of VHO is by expanding detection electric current I_DETDynamic range improve accuracy of detection.

Installing test section 330 will detection electric current I_DETIt is converted into digital detection signal SI_DET, by this numeral Detection signal SI_DETIt is sent to CPU410 (Fig. 6).CPU410 can believe according to this Digital Detecting Number SI_DETValue judge it is any of 16 kinds of installment states.It is being judged to more than one box not In the case of Bei Anzhuan, CPU410 shows the information representing this non-installment state on display part 430 (word or image) notifies user.

The installation detection of above-mentioned box processes and make use of: according to relevant to N number of box 2^NPlant and shape is installed State determines combined resistance value Rc uniquely, and determines detection electric current I the most uniquely_DET.This In, it is assumed that the allowable error of the resistance value of resistance 701～704 is ε.It addition, when set box IC1～ The first combined resistance value under the state that IC4 is all mounted is Rc1, only the 4th box IC4 not by When the second combined resistance value under the state installed is Rc2, Rc1 ＜ Rc2 sets up (Figure 11's (B)).Preferably this relation Rc1 ＜ Rc2 each resistance 701～704 resistance value allowable error ± Also set up in the case of variation in the range of ε.At this moment, worst condition is to consider allowable error ± ε In the case of, the first combined resistance value Rc1 obtains its maximum Rc1max, the second combined resistance value Rc2 obtains the situation of its minima Rc2min.In order to identify these combined resistance values Rc1max, Rc2min, it is only necessary to meet Rc1max ＜ Rc2min condition.From this condition Rc1max ＜ Rc2min derives below formula.

[several 3]

$\mathrm{\&epsiv;}<\frac{1}{4(2^{N-1}-1)}---\left(3\right)$

That is, if allowable error ± ε meets (3) formula, it becomes possible to be always ensured that according to N number of box Installment state determines combined resistance value Rc uniquely, and determines detection electric current the most uniquely I_DET.But, the allowable error of the resistance value in actual design is preferably set to the right than (3) formula The little value of value.Alternatively, it is also possible to study the most as above, and by resistance 701～704 The allowable error of resistance value be set as the least value (such as 1% value below).

Figure 12 is the detailed configuration example installing test section 330 of the printing equipment of present embodiment. Test section 330 is installed and includes that current-voltage converter section 710, voltage comparing section 720, comparative result are deposited Storage portion 730 and voltage correction portion 740.Additionally, the installation test section 330 of present embodiment does not limits Composition due to Figure 12, it is possible to implemented by following various deformation, as omitted its element A part, change other element into, add other element etc..

Current-voltage converter section 710 is be made up of operational amplifier 712 and feedback resistance R11 anti-phase Amplifying circuit.The output voltage V of operational amplifier 712_DETIt is given by.

[several 4]

$V_{\mathrm{DET}}=\mathrm{VREF}-I_{\mathrm{DET}}\&CenterDot;R11$

$=\mathrm{VREF}-(\mathrm{VHO}-\mathrm{VREF})\frac{R11}{R_c}---\left(4\right)$

Here, VHO is the output voltage of voltage application portion 320 (Fig. 6), and Rc is four resistance The combined resistance of 701～704 ((A) of Figure 11).This output voltage V_DETHave and detection electricity Stream I_DETCorresponding magnitude of voltage.

Additionally, the voltage V be given by (4) formula_DETExpression will be based on detection electric current I_DETVoltage (I_DETR11) the anti-phase and value that obtains.Therefore, it can add to current-voltage converter section 710 Inverting amplifier, and export voltage V by this inverting amplifier added_DETAnti-phase and the electricity that obtains Press the output voltage as current-voltage converter section 710.The amplification of this inverting amplifier added Absolute value is preferably 1.

Voltage comparing section 720 includes threshold voltage generating unit 722, comparator 724 (operation amplifier Device) and switch control portion 726.Threshold voltage generating unit 722 is selected and defeated by switching switch 723 Go out the multiple threshold voltage vt h obtained by multiple resistance R1～Rm dividing potential drop reference voltage VREF In (j) one.The plurality of threshold voltage vt h (j) and shown in (B) the 16 of identification Figure 11 Plant the detection electric current I under installment state_DETThe threshold value of value suitable.Comparator 724 compares current-voltage The output voltage V of converter section 710_DETWith the threshold voltage vt h exported from threshold voltage generating unit 722 J () also exports the comparative result of 2 values.

Switch control portion 726 is based on output voltage V_DETEnter with the comparative result of threshold voltage vt h (j) Row switching next should be from the control of magnitude of voltage Vth (j) of threshold voltage generating unit 722 output.

Comparative result storage part 730 comparative result based on 2 values exported from voltage comparing section 720 Suitable position, position in bit register 734 arranges mark (such as writing 1).This switching switchs The switching timing of 732 is specified by switch control portion 726.Bit register 734 has expression and can install Each box in printing equipment detects with or without N number of (N=4 here) the box detecting position installed and expression The abnormality mark position of abnormal current value.Abnormality mark position is when being all mounted with whole boxes Current value Imax ((B) of Figure 11) compares in the case of having the flowing of big electric current significantly electric for height Flat.But, abnormality mark position can be omitted.The multiple place values preserved in bit register 734 are by conduct Digital detection signal SI_DET(sensed current signal) is sent to the CPU410 (figure of master control part 400 6).CPU410 is according to this digital detection signal SI_DETPlace value judge whether each box is pacified Dress.As it was previously stated, digital detection signal SI_DETFour place values represent whether each box is mounted. Therefore, CPU410 can be according to digital detection signal SI_DETEach place value directly determine each Whether box is mounted.

Both voltage comparing section 720 and comparative result storage part 730 constitute so-called A-D conversion Portion.Other various composition known can be used to replace institute in Figure 12 as A-D converter section The voltage comparing section 720 shown and comparative result storage part 730.

Voltage correction portion 740 is for making the multiple threshold values electricity generated in threshold voltage generating unit 722 Pressure Vth (j) follows the circuit installing the detection pressure variation of VHO and be modified it.Electricity Pressure correction portion 740 is by as comprising operational amplifier 742 and the anti-phase of two resistance R21, R22 is put Big circuit and constitute.The reversed input terminal of operational amplifier 742 is via input resistance R22 input electricity The output voltage VHO, non-inverting input terminal input reference voltage VREF of pressure applying unit 320.This Time, the output voltage AGND of operational amplifier 742 is given by.

[several 5]

$\mathrm{AGND}=\mathrm{VREF}-(\mathrm{VHO}-\mathrm{VREF})\frac{R21}{R22}---\left(5\right)$

This voltage AGND is used as the reference voltage of the low voltage side of threshold voltage generating unit 722 AGND.Such as, if setting VREF=2.4V, VHO=42V, R21=20k Ω, R22=400k Ω, then AGND=0.42V.The most above-mentioned (4) formula and (5) formula are appreciated that threshold value electricity The reference voltage AGND of the low voltage side of pressure generating unit 722 and detection magnitude of voltage V_DETSame DIGEN Change according to the value of output voltage VHO of voltage application portion 320.The two voltage AGND, V_DETDifference be to produce due to the difference of resistance ratio R21/R22, R11/Rc.If used so Voltage correction portion 740, even if supply voltage VHV because certain reason change, pass through threshold value Multiple threshold voltage vts h (j) that voltage generating unit 722 generates also can follow supply voltage VHV Change and change.As a result of which it is, detection magnitude of voltage V_DETWith both multiple threshold voltage vts h (j) Follow the variation of supply voltage VHV and change, therefore can obtain table in voltage comparing section 720 Show the comparative result of correct installment state.Particularly, if setting resistance ratio R21/R22 and resistance Value than R11/Rc1 (Rc1 is the combined resistance value during installation of whole box) is equal, then can make Detection magnitude of voltage V_DETThe side changed with almost identical amplitude of variation with multiple threshold voltage vts h (j) Formula correctly follows the variation of supply voltage VHV.But, voltage correction portion 740 can be omitted.

As it has been described above, according to the printing equipment of present embodiment, in the case of using multiple print cartridges, Even if due to the terminal of ink mist etc. and printing material containing body in the end edge side being positioned at circuit substrate Between be short-circuited in the case of, it is also possible to prevent the storage device of printing material containing body to other Deng applying high voltage.And when installing detection, between the terminal of print cartridge, there occurs the situation of short circuit Under, it is possible to this short circuit detected thus stop providing the high voltage installing detection.Further, since energy Enough stopping applying high voltages when accessing storage device, therefore, it is possible to the generation of suppression noise.Its result It is possible to reliably and carry out safely the installation detection of print cartridge.

Additionally, the control performed by control portion 300, such as, detection, CO detection, short circuit are installed Detection, the high-tension control needs such as blocking can also be performed by master control part 400.

Additionally, be described in detail by present embodiment as mentioned above, but those skilled in the art can Will be readily understood that and can carry out the new item without materially departing from the present invention and the various deformation of effect.Cause This, such variation is integrally incorporated in the scope of the present invention.Such as, at description or accompanying drawing In, no matter the term being described together with terms different from more broad sense or synonym at least one times exists Any position of description or accompanying drawing can replace to this different term.Additionally printing equipment with And the composition of printing equipment circuit substrate, action are also not limited to the side that illustrated by present embodiment Formula, it is possible to implement various deformation.

Claims (11)

1. a printing equipment, including:

First printing material containing body～the n-th printing material containing body, be respectively provided with memory print material The storage device of information and multiple storage device terminal；And

Control portion, with described first printing material containing body～the institute of described n-th printing material containing body State multiple storage device terminal to connect, and described storage device is carried out reading or the write of data Control,

Described printing equipment is characterised by,

The i-th printing material in described first printing material containing body～described n-th printing material containing body The plurality of storage device terminal of each of material containing body～jth printing material containing body passes through Bus is jointly connected with described control portion,

The plurality of storage device terminal of described first printing material containing body separates with described bus Ground is connected with described control portion,

The plurality of storage device terminal of described n-th printing material containing body separates with described bus Ground is connected with described control portion,

Wherein, n is the integer of more than 2, and i is the integer of 1 < i < n-1, and j is the integer of i < j < n.

2. printing equipment as claimed in claim 1, it is characterised in that

Including circuit substrate, described control portion is installed on described circuit substrate, described circuit substrate Have and deposit with described first printing material containing body～described n-th the plurality of of printing material containing body The first terminal group that storage device terminal connects～n-th terminal group and the bus terminals of described bus,

Described the first terminal group is configured in the first end edge side of described circuit substrate,

Described n-th terminal group is configured in second relative with described first end edge of described circuit substrate End edge side.

3. printing equipment as claimed in claim 1 or 2, it is characterised in that

Described i-th printing material containing body is described first printing material containing body～described n-th printing The second printing material containing body in material containing body,

Described jth printing material containing body is described first printing material containing body～described n-th printing The (n-1)th printing material containing body in material containing body.

4. printing equipment as claimed in claim 1 or 2, it is characterised in that

Described i-th printing material containing body～the plurality of storage of described jth printing material containing body Device terminal includes clock terminal, data terminal, the first power supply terminal and second source end respectively Son,

Described clock terminal, described data terminal, described first power supply terminal and described second source Terminal is jointly connected with described control portion by described bus respectively.

5. printing equipment as claimed in claim 4, it is characterised in that

Described i-th printing material containing body～the plurality of storage of described jth printing material containing body Device terminal the most also includes reseting terminal.

6. printing equipment as claimed in claim 1 or 2, it is characterised in that

Described control portion includes detecting described first printing material containing body～described n-th printing material holds Receive the installation test section of installation of body,

Described i-th printing material containing body～described jth printing material containing body include installing inspection respectively Survey terminal,

Described installation detection terminal is jointly connected with described control portion.

7. printing equipment as claimed in claim 6, it is characterised in that

Kth printing material in described i-th printing material containing body～described jth printing material containing body The described installation detection terminal of material containing body and the described installation test side of kth+2 printing material containing body Son is jointly connected with described control portion, and wherein, k is the integer of i k j-2.

8. printing equipment as claimed in claim 6, it is characterised in that

Described first printing material containing body～described n-th printing material is detected at described installation test section During the installation of containing body, the plurality of storage device terminal is set as high impedance shape by described control portion State.

9. a printing equipment circuit substrate, including:

The first terminal group～n-th terminal group, hold with the first printing material containing body～the n-th printing material Body of receiving connects,

Described printing equipment circuit substrate is characterised by, also includes bus terminals, by described first The i-th terminal group～jth terminal group in terminal group～described n-th terminal group jointly connect with control portion Connect,

Described the first terminal group is connected with described control portion discretely with described bus terminals,

Described n-th terminal group is connected with described control portion discretely with described bus terminals,

Wherein, n is the integer of more than 2, and i is the integer of 1 < i < n-1, and j is the integer of i < j < n.

10. printing equipment circuit substrate as claimed in claim 9, it is characterised in that

Described the first terminal group～described n-th terminal group include respectively for accessing described first printing material Multiple storage devices of the storage device that material containing body～described n-th printing material containing body are had are used Terminal.

The 11. printing equipment circuit substrates as described in claim 9 or 10, it is characterised in that

Described the first terminal group～described n-th terminal group are respectively provided with for detecting described first printing material The installation detection terminal of the installation of material containing body～described n-th printing material containing body.