United States Patent [19]
`Toganoh et al.
`
`[11] Patent Number:
`[45] Date of Patent:
`
`4,559,543
`Dec. 17, 1985
`
`[54] INK JET RECORDING DEVICE MODULAR
`FRAME
`
`[56]
`
`References Cited
`U.S. PATENT DOCUMENTS
`
`[75] Inventors: Shigeo Toganoh; Yohji Matsufuji;
`Hiroo Ichihashi, all of Tokyo, Japan
`
`[73] Assignee: Canon Kabushiki Kaisha, Tokyo,
`Japan
`
`[21] Appl. No.: 424,409
`
`[22] Filed:
`
`Sep. 27, 1982
`
`Foreign Application Priority Data
`[30]
`Oct. 13, 1981 [JP]
`Japan .............................. .. 56-163653
`Oct. 13, 1981 [JP]
`Japan .............................. .. 56-163636
`Oct. 14, 1981 [JP]
`Japan .............................. .. 56-163715
`
`[51] Int. Cl.4 ........................................... .. G01D 15/18
`[52] vs. C]. ....................... .. 346/140 R; 346/75
`[58] Field of Search ............................ .. 346/75, 140 R
`
`4,157,552 6/1979 Nakajima .......................... .. 346/ 141
`4,314,259 2/1982 Cairns et a1.
`346/75
`4,338,610 7/1982 Sellen et al.
`346/75
`4,356,499 10/1982 Kodama ...................... .. 346/75
`4,359,752 11/1982 Nakagawa et a1. ........... .. 346/140 R
`4,369,456 l/ 1983 Cruz-Uribe et a1. .......... .. 346/ 140 R
`
`4,370,664 l/l983 Horike et al. . . . . . . . . .
`
`. . . . . . .. 346/75
`
`4,463,359 7/1984 Ayata et a1. . . . . . . .
`. . . . .. 346/l.1
`4,499,478 2/1985 Matsufuji et a1. ............. .. 346/ 140 R
`Primary Examiner-E. A. Goldberg
`Assistant Examiner-Gerald E. Preston
`Attorney, Agent, or Firm—Fitzpatrick, Cella, Harper &
`Scinto
`ABSTRACT
`[57]
`A recording device comprises a plural number of ink jet
`device units, each unit comprising an ink jet head por
`tion, its drive controlling portion and a wiring portion,
`juxtaposed on a common base plate.
`
`12 Claims, 5 Drawing Figures
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`INK JET RECORDING DEVICE MODULAR
`FRAME
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`prises a front plate provided on a base plate for support
`ing a plural number of ink jet devices which are previ
`ously constituted separately, a standard plane set at a
`part of the front plate, and the respective ink jet devices
`being arranged on said base plate so that each ink dis
`charging plane of said devices may coincide with said
`standard plane.
`According to still another aspect of the present inven
`tion, there is provided a recording device which com
`prises a plural number of ink jet device units, each unit
`having an ink jet head portion and its own drive con
`trolling portion and wiring portion, juxtaposed on a
`common supporting base plate, and the wiring portions
`of said respective units being electrically connected to
`each other by contact under pressure with a lead for
`transmission of signals which is common to these wiring
`portions.
`‘
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`10
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`BACKGROUND OF THE INVENTION
`1. Field of the Invention
`This invention relates to a recording device, and
`particularly to a recording device equipped with an ink
`jet system generally called “full-line multi-array type”.
`2. Description of the Prior Art
`Among various recording systems presently known
`in the art, the so called ink jet recording system, which
`is the non-impact recording system substantially with
`out noise during recording and capable of high-speed
`recording, even on plain paper without speci?c ?xation
`treatment, is a very useful system in realizing recording
`devices such as various printers, word processors, copy
`ing machines, etc.
`And, the ink jet recording system performs recording
`by permitting small droplets of a recording liquid (re
`ferred to as “ink” in the following description) to fly
`based on various principles of action and attaching them
`onto a material to be recorded such as a paper. The
`device for generating ink droplets to be used in such an
`ink jet recording system, namely an ink jet system, is
`constituted mainly of an ink jet head portion for forma
`tion of ink droplets and a supply system for supplying
`ink to said portion.
`As the ?rst mode of the ink jet head as mentioned
`above, there are those generally called the “single type”
`or “semi-multi type”, having about 1 to 10 ink discharg
`ing outlets. In these ink jet heads, the structure of the
`head is relatively simple and exchange operations at the
`time of failure or breaking of the head is easy and not so
`expensive.
`However, when using another mode of the head
`generally called the “full-line multi-array type” to be
`used for printing one line of a paper substantially at the
`same time, the exchange operation of the head is not
`easy although probability of failure or breaking of a part
`of the head is increased. Moreover, exchange of the
`head as a whole is limited from the aspect of cost.
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`SUMMARY OF THE INVENTION
`An object of the present invention is to provide a
`recording device equipped with a full-line multi-array
`type ink jet system which has overcome the problems
`mentioned above and is high in reliability.
`Another object of the present invention is to provide
`a recording device equipped with a full-line multi-array
`type ink jet system in which exchange of the parts is
`easy and the maintenance of the device as a whole is
`simple.
`According to one aspect of the present invention,
`there is provided a recording device which comprises a
`plural number of ink jet device units, each unit compris
`ing an ink jet head portion, its drive controlling portion
`and a wiring portion, juxtaposed on a common base
`plate.
`According to another aspect of the present invention,
`there is provided a recording device which comprises a
`base plate for supporting a plural number of ink jet
`devices previously constituted separately, positions for
`juxtaposing said devices on at least one side of said base
`plate, and respective ink jet devices ?xed so as to coin
`cide with those positions.
`According to a further aspect of the present inven
`tion, there is provided a recording device which comA '
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`BRIEF DESCRIPTION OF THE DRAWINGS
`FIG. 1 shows a perspective view of the appearance of
`the recording device according to the present inven
`tion;
`FIG. 2 shows a perspective view of the appearance of
`the head unit according to the present invention;
`FIG. 3 shows a partial perspective view of the ap
`pearance of the recording device of the present inven
`tion for illustration of the main parts of the present
`invention; and
`FIG. 4 and FIG. 5 are perspective views of the ap
`pearance of the main parts of other embodiments of the
`recording device of the present invention.
`
`DETAILED DESCRIPTION OF THE
`PREFERRED EMBODIMENTS
`The present invention is described in detail below .
`based on the embodiments as illustrated in the accompa
`nying drawings.
`FIG. 1 is a perspective view of the appearance of the
`recording device of the present invention. In FIG. 1,
`101 is a recording head unit and the recording head unit
`101 is constituted of an ink jet head portion 103 having
`plural ori?ces 102 arranged on a line, a drive controlling
`portion 104 and a wiring portion 105. The head portion
`103, the drive controlling portion 104 and the wiring
`portion 105 are connected to each other through bond
`ing wire or ?exible print plate, etc. (not shown in the
`drawing), and the head unit 101 is set so as to be capable
`of printing individually by input of a recording signal to
`the wiring portion 105. The numeral 106 denotes a
`supporting plate for said head unit 101 and a plural
`number of said head units 101 are juxtaposed on both
`the surface and the backside of the plate 106, which
`surfaces constitute ?rst and second opposed major sur
`faces, to provide ori?ces 102 in a so called “full-line
`arrangement” to a width of a certain printing paper
`(namely, corresponding to one line). And, each head
`unit 101 is detachably mounted on the suppporting plate
`106 so that its ?xed position may be adjusted in the right
`and left direction by the head registration plate 107
`provided on the supporting plate 106, while the ?xed
`position in the vertical direction may adjusted by the
`head holding plate 108.
`The numeral 109 denotes a matrix ?exible print plate
`for transmission of the output signal from the signal
`output portion (not shown) in the drawing through the
`cable 110 and the connector 111 to the wiring portion
`105 of each head unit 101. That is pressure contacted
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`the guide shaft bracket 132 on the base plate 126 (not
`with the individual wiring portion 105 for each head
`shown on the guide shaft 131’ side).
`unit 101 by means of the pressing jig 112 to be con
`By moving the guide shaft collars 130, 130' forwardly
`nected to each wiring portion 105. Thus, the print plate
`or backwardly along the guide shafts 131, 131’, respec
`109 and each wiring portion 105 are not bonded to each
`tively, the supporting plate 106 will slide on the guides
`other, ‘but they are freely detachable.
`127, 127’ in the directions of the arrows in the drawing,
`A plate for mounting lead terminals is shown by 113,
`whereby it is possible to set the front end surface of the
`to which another signal wire 114 from the signal output
`head at the desired position of recording position, cap
`portion (not shown in the drawing) for driving the head
`ping position, maintenance position, etc.
`unit 101 and the signal wire (not shown in the drawing)
`The numeral 133 denotes a head for performing cap
`connected directly to the head portion 103 of each head
`ping and cleaning of the ori?ces 102 and has jetting
`unit 101 are detachably connected by screwing, etc.
`holes for jetting out air or washing liquid against the
`The numerals 115 and 115’ both denote ink supplying
`ori?ces and suction holes for sucking these materials
`pipes for supplying ink from the ink tank 116 to a re
`(neither of these sets of holes is shown in the drawing)
`spective head portion 103.
`provided on the side face confronting the ori?ces. The
`Two ink supplying pipes 115, 115’ are connected to
`jetting holes and the suction holes are connected, at
`each head portion 103, and ink is supplied to the head
`places not shown in the drawing, to the pressurizing
`portion 103 through the two supplying pipes 115, 115' at
`side tubes 134, 134’ and the suction side tubes 135, 135",
`the time of ink discharging. Alternatively, through a
`respectively, which also communicate with the joints
`valve mechanism (not shown in the drawing) provided
`136 and 137, said joint 136 on the pressurizing side being
`within the ink tank 116, ink may also be circulated
`connected through the lubricator (not shown) and said
`under pressure between the ink tank 116 and the head
`junction 137 on the suction side through the ?lter (not
`portion 103 by using one of the pipes for feeding under
`shown) to the pressurizing side and the suction side,
`pressure and the other for ink recovery.
`respectively, of the pump (not shown). The cleaner
`The ink tank 116 is provided with a cylinder block
`head 133 which is also a cap is also set so as to take a
`117 equipped internally with a pressure pump for actu
`position for recording, a position for capping and a
`ating the aforesaid valve mechanism and an air ?lter
`position for maintenance, corresponding to the move
`block 118 having a vent. The air ?lter block 118 has a
`ment of the aforesaid supporting plate 106.
`, detachable cap 119 mounted thereon for prevention of
`The supporting plate 106 is rotatable around the
`.. scattering of ink during transportation.
`shafts of the hinge pins 138 and 138’ ‘provided on the
`The ink tank 116 is also provided with ink supple
`hinge stands 128 and 128’ so that the face of the support
`> menting inlets (not shown) through which ink is supple
`ing plate 106 on the side of the ori?ce 102 may form a
`mented from the tank for supplement 120 so that the ink
`circular are, when rotated and the supporting plate 106
`level in the ink tank 116 may be maintained substantially
`can be ?xed at a desired angle relative to the surface of
`constant. The tank for supplement 120 is detachably
`the base plate 126 by pressing a stay 141 against the stay
`fastened to the ink tank 116 by the ?xing claws 121, 121'
`angle 139 with a screw 142. One end _of the stay 141 is
`I provided on the ink tank side 116 so that exchange
`rotatably secured to the stay angle 140 ?xed on the base
`between new and old tanks may be possible, if desired.
`plate 126. The stay angle 139 is ?xed to the supporting
`The ink tank 116 is ?xed on the ink tank base (not
`plate 106.
`. .shown in the drawing), and it is also ?xed through metal
`Further, the screw 142 for ?xing can be drawn off
`..,.;?ttings 122, 122’ to the supporting plate 106.
`from the stay angle 139 to dismantle easily the support
`-
`i The numeral 123 shows a cover of the head unit 101
`ing plate 106 from the base plate 126.
`provided with grooves for ?xing the ink supplying
`143 is a tube guide for ?xing tubes 134, 134', 135, 135’
`pipes 115, 115', and the cover 123 is provided for the
`on the base plate 126, and 144 is a case for protection of
`purpose of preventing the head unit 101 from contami
`the cable 110 and the signal wire 114. Such a protective
`nation with ink, etc., or breaking by the shock during
`case can prevent the cable 110 and the signal wire 114
`handling.
`from damage or cutting by sudden application of exter
`Each of 124, 124’ shows a registration pin which is
`nal pressure when the ink jet recording device is
`?tted into a pin holder provided in a paper conveying
`mounted on the body of a machine (not shown in the
`system to set the desired distance between the ori?ce
`drawing).
`8
`102 of each head portion 103 and the recording paper as
`Referring now to FIG. 2, the recording head unit 101
`well as other positional relations. The registration pins
`shown in FIG. 1 is to be described in detail.
`124 and 124’ are secured through the respective brack
`In FIG. 2, 202 is a head unit base plate, on one of the
`ets 125 and 125’ onto the supporting plate 106.
`shorter sides of which there is ?xed an ink jet head
`The numeral 126 denotes a base plate for mounting
`portion 201, and a wiring portion supporting stand 203
`the ink jet recording device shown in the drawing on
`is mounted on the surface of the base plate 202 at the
`the body of a machine (not shown in the drawing), with
`rear end region of the head portion 201. The supporting
`the supporting plate 106 placed thereon. The base plate
`stand 203 is fastened through engagement with a screw
`126 is provided with a driving mechanism for moving
`211 ?xed to the base plate 202, but there is no adhesion
`the supporting plate 106 on the base plate 126 and cap
`between the supporting stand 203 and the base plate
`ping mechanisms for the ori?ces 102.
`202, and the supporting stand 203 may be made slidable
`The supporting plate 106 is supported at its front
`on the base plate 202 or both can be separated from each
`portion by the supporting plate guides 127, 127’ and at
`other by removal of the screw 211. Further, on the
`its rear portion by the hinge holders 129, 129’ via the
`upper surface of the supporting stand 203, there are
`hinge stands 128, 128’ provided on the supporting plate
`mounted a wiring plate 205 and a multilayer wiring
`106. The hinge holders 129, 129' are slidable via the
`plate 208 in that order from front to back and both are
`respective guide shaft collars 130, 130’ on the two guide
`connected by the bonding 206. In this connection, 207 is
`shafts 131, 131'. And, the guide shaft 131 is supported by
`a cover for the aforesaid bonding portion 206 and, if
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`drawing). The unit base plates 309 are relatively thin
`desired, it can be dismantled from the wiring plate 205
`and, particularly when they have insuf?cient ?atness,
`or the multi-layer wiring plate 208. The aforesaid wir
`ing plate 205 and multilayer wiring plate 208 are ad
`the front portions of the unit base plates 309 will come
`off from the supporting plate 301, especially around the
`hered simply to the supporting stand 203 at their back
`head portions 308, by ?xation of the rear portions to the
`sides so that they may be separated from the stand, if
`supporting plate 301 with ?xing claws. Accordingly,
`desired.
`'
`with the head unit setting plane as the standard, the
`The numeral 204 denotes a drive controlling portion,
`head portions 308 are pressed by the head holding plates
`which is ?xed on the wiring plate 205 with electrical
`310, 310' so that the orifices 303 of respective head
`connection.
`portions 308 may be arranged on the same line, thus
`The numeral 210 denotes a ?exible print plate includ
`de?ning the vertical positions thereof, whereby the
`ing a lead wires concerned with the ink jet head portion
`backside of the base plate 309 can be ?xed in close
`201, one end of which is pressure contacted on the
`contact with the supporting plate 301.
`aforesaid wiring plate 205 by means of a holding jig 209
`The head holding plates 310, 310' not only de?ne the
`to effect electrical connection therebetween. And, by
`vertical portions of the head portions 308 as decribed
`loosening of the fastening screw 20% on the upper plate
`above, but also can prevent positional slippages of the
`20911 of the holding jig, the ?exible print plate 210 can
`head portions 308 through peeling off from the unit base
`be separated from the wiring plate 205.
`plate 309, for example, when the head portions 308 are
`As described above, the recording head unit 101 can
`be assembled by uniting the main parts, comprising head
`?xed by means of adhesion or the like onto the unit base
`portion 201, the ?exible print plate 210, the wiring plate
`plate 309 and the adhesion force becomes insuf?cient by
`205, the drive controlling portion 204 and the multi
`dissolving of the adhesive by the ink oozed out from the
`layer wiring plate 208, which are previously constituted
`ori?ces 303.
`Thus, after a predetermined number of head units 307
`separately, on a common base plate 204, and, if desired,
`each part is readily exchangeable.
`are arranged at predetermined positions on the support
`ing plate 301, the ?rst signal wires (not shown) con
`FIG. 3 is a partial perspective view of the appearance
`of the recording device according to the present inven
`nected directly to respective head portions 308 are con
`nected to the lead terminal mounting plate 311 by way
`tion, for illustration of mounting of the recording head
`of screwing or the like.
`unit 101 as shown in the embodiment shown in FIG. 1
`Then, the second signal wires 312 from the signal
`on the supporting plate 106 in detail.
`In FIG. 3, the head registration plate 302 provided on
`output portions (not shown) are connected via the con
`the supporting plate 301 is provided with the standard
`nector 313 and the matrix ?exible print plate 314 to the
`wiring portions 315 of respective head units 307. On the
`positioning plane 304 in the right and left direction of
`face of the matrix ?exible print plate 314 confronting
`the ori?ce 303 and the standard positioning plane 306 in
`the wiring portion 315, there are provided exposed
`the back and forth direction of the ori?ce face 305.
`conductor portions 316 at positions corresonding to the
`The standard planes 304 are provided all in the same
`wiring portions 315 of respective head units 307, with
`direction relative to the standard position of one side
`end surface of the head registration plate 302, corre
`the one end of the ?exible print plate 314 being con
`sponding to the number and positions of the recording
`nected to the connector 313.
`For connection of the ?exible print plate 314 to the
`head units 307 to be provided on the supporting plate
`wiring portions 315, registration between the wiring
`301. On the other hand, the side face of the head portion
`portions 315 and the exposed conductor portions 316 is
`308 of the head unit 307 facing toward the standard
`?rst effected. Registration between the wiring portions
`plane 304 is worked with a high surface precision, and
`by butting the side face of the head portion 308 against
`315 and the exposed conductor portions 316 can be
`the standard plane 304, the positional slippage in the
`effected with relative ease, since the head units 307 are
`?xed on the supporting plate 301 by the unit base plate
`right and left direction of the ori?ces 303 due to arrang
`ing plural head portions 308 can be kept within % of the
`309, the supporting stands 317 on which the wiring
`pitch of the ori?ce 303.
`portions 315 are placed can be moved on the unit base
`plate 309 within the degree of freedom of the ?exible
`The standard plane 306 in the back and forth direc
`print plate 318, and the widths of the wiring portions
`tion of the ori?ce face 305 in the head registration plate
`315 and the conductors of the ?exible print plate 314 are
`302 is common to all the head portions 308 provided on
`wide enough to effect registration by visual observa
`the supporting plate 301, and the ori?ce faces 305 of the
`respective head portions 308 can be provided on the
`tion.
`After registration between the wiring portions 315
`same plane by bringing the ori?ce faces 305 of the re
`and the exposed conductor portions 316, the ?exible
`spective head units 307 to coincide with the standard
`print plate is successively attached under pressure
`plane 306 of the head registration plate 302.
`through rubber sheets 319 to the wiring portions 315 by
`As the method to make the respective ori?ce faces
`305 coincident with the standard plane 306, there is, for
`means of the press rods 320.
`example, the method in which a detachable ?at plate is
`The press rod 320 is engaged with the press lever 322
`contacted with the standard plane 306 and the ori?ce
`through the shaft 321 so as to be rotatable around the
`faces 305 of respective head portions 308 are brought in
`shaft 321 as the center, and the press lever ‘322 is en
`a butt against this plate. According to this method, the
`gaged with the lever ?xing stand 324 ?xed on the sup
`respective ori?ce faces 305 can be made to coincide
`porting plate 301 through the shaft 323 so as to be rotat
`correctly with the standard plane 306.
`able around the shaft 323 as the center.
`After respective head units 307 are arranged at prede
`The press lever 322 is provided with a press screw
`termined positions on the supporting plate 301 as de
`325. By screwing of the press screw, the press rod 320
`scribed above, the unit base plates 309 of respective
`will bring the ?exible print plate 314 in pressure contact
`with the wiring portion 315 through the rubber sheet
`head units 307 are ?xed at their rear portions on the
`supporting plate 301 with ?xing claws (not shown in the
`319, whereby the wiring portion 315 and the ?exible
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`a base plate;
`print plate 314 are electrically connected to each other,
`a supporting plate movably mounted to said base
`and the supporting stand 317 is ?xed on the unit base
`plate;
`plate 309 at the same time.
`a plurality of ink jet devices removably mounted to
`Thus, when it is necessary to exchange the head units
`said supporting plate, each said device having a
`307 ?xed to the supporting unit, the press screw 325 is
`head portion with a number of outlets adapted to
`?rst loosened to dismantle the press lever 322 and the
`discharge ink disposed at predetermined locations
`press rod 320 from the ?exible print plate 314, and fur
`de?ning respective ink discharging planes;
`ther the unit base plate 309 is taken off from the ?xing
`a front plate mounted to said supporting plate and
`claws (not shown) simultaneously with dismantling of
`de?ning a standard plane, said front plate having
`the head holding plates 310, 310’, whereby each head
`notches for accepting said head portions and coop
`unit 307 can be dismantled from the supporting plate
`erating therewith to provide alignment of said ink
`301. And, after exchange of the head units 307, the new
`discharging planes in said standard plane and to
`ones may be ?xed at the predetermined positions ac
`position said head portions in predetermined loca
`cording to the procedure opposite to the dismantling
`tions parallel to said standard plane; and
`procedure as described above to complete the exchange
`moving means for moving said supporting plate rela
`operations for respective head units.
`tive to said base plate for orienting said outlets in
`FIG. 4 and FIG. 5 show embodiments wherein modi
`any of a recording position, a capping position and
`?cations are made to the head holding plates as de
`a maintenance position.
`scribed above.
`2. Recording apparatus as in claim 1, wherein said
`FIG. 4 shows an embodiment wherein the respective
`outlets of all of said ink jet devices are arranged on a
`head portions of the head unit 101 arranged on the
`predetermined ‘line.
`‘
`supporting plate 106 are all ?xed with the head holding
`3. Recording apparatus as in claim 1, wherein each
`plate 149, and FIG. 5 an embodiment wherein the head
`said ink jet device includes a drive controlling portion
`portions of respective head units 101 are ?xed individu
`and a wiring portion on said supporting plate.
`ally through the supporting stands 151, 151' with the
`4. Recording apparatus as in claim 3, wherein each
`head holding plate 152. In the latter arrangement, the
`said head portion, drive controlling portion and wiring
`head holding plate 152 is provided with vertical
`portion are arranged on said supporting plate in the
`through-holes 153 so that the situation within each head
`named order.
`portion can be observed.
`5. Recording apparatus as in claim 3, wherein said
`In the present invention, by constituting the head
`head portion, said drive controlling portion and wiring
`holding plate as shown by 310, 310’ in FIG. 3 or 152 in
`portion of each said ink jet device are electrically con
`FIG. 5, the inner condition within each head portion
`nected.
`can be made observable. Also, by making the head
`6. Recording apparatus as in claim 1, wherein said
`holding plate in a shape as shown in FIG. 4 or FIG. 5
`supporting plate has ?rst and second opposed major
`and using a material with good thermal conductivity,
`surfaces and said ink jet devices are juxtaposed on both
`the temperature distribution at each head portion 103
`of said surfaces of said supporting plate.
`can be made uniform, whereby the difference in viscos
`7. Recording apparatus as in claim 1, wherein each
`ity created by the temperature difference of the ink
`said ink jet device is pressure-contacted on and ?xed to
`supplied to respective ori?ces 102 and further to respec
`said supporting plate.
`tive head units 101 can be eliminated to enable stabiliza
`8. Recording apparatus as in claim 1, wherein each
`tion of discharging of the ink from respective ori?ces
`said ink jet device has outlets arranged on a line.
`102.
`9. Recording apparatus as in claim 1, wherein said
`As described above, in the present invention, a plural
`supporting plate includes means for defining positions
`number of recording head units previously constituted
`locating said ink jet devices on at least one side of said
`supporting plate.
`separately are assembled and arranged to complete a
`recording device. This enables setting of the positions of
`10. Recording apparatus as in claim 1 further com
`respective units to be arranged with very good preci
`_ prising a lead, wherein each said ink jet device includes
`sion. Moreover, the ink discharging outlets existing in
`a drive controlling portion and a wiring portion on said
`supporting plate, said wiring portion of one said ink jet
`all units can thereby be arranged accurately on a line.
`device being electrically connected to a wiring portion
`Further, in the present invention, at the time of assem
`bling of respective recording head units, the consititu
`of an adjacent said ink jet device by pressure contact
`with said lead, and said lead is provided for transmission
`tional parts can be scrutinized suf?ciently to give an
`assembly constituted only of parts with good perfor
`of signals and is common to said wiring portions.
`mance. As previously mentioned, when it is necessary
`11. Recording apparatus as in claim 1 further com
`prising capping means for capping said outlets when
`to exchange the units due to damage, etc., only the part
`concerned need be ‘subjected to exchange operation
`said outlets are oriented in the capping position.
`12. Recording apparatus as in claim 1 further com
`and, therefore, maintenance of the recording device as a
`prising registration means for positioning the standard
`whole can be performed very ef?ciently and economi=
`cally.
`plane relative to a recording medium when said outlets
`are oriented in the recording position.
`We claim:
`1. Recording apparatus comprising:
`SI
`1*
`* Ill
`*
`
`45
`
`50
`
`60
`
`65
`
`HP 1005
`Page 10 of 12
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`

`
`‘UNITED STATES PATENT AND TRADEMARK OFFICE
`CERTIFICATE OF CORRECTION
`PATENTNO. : 4,559,543
`DATED
`
`' December '17, 1985
`
`INVENTOFHS) :
`
`.
`_
`SHIGEO TOGANOH ET
`It is certified that error appears m the a?ove-rden-t: led patent and that send Letters Patent ts hereby
`corrected as shown beiow:
`Column 1, line 35, change "is" to —-are—— and change
`"so," to —-too—-.
`
`Column 2, line 62, after "may" insert -—-be—-.
`
`Column 3, line 46, change "by the" to --due to——.
`
`Column 5, line 11, delete "a".
`
`and
`
`.
`
`Column 6, line 20, change "by" to ——as a result of--;
`
`-—corresponding——.
`
`line 35, change "corresonding" to
`
`[SEAL]
`
`Aunt:
`
`_
`
`Signed and Scaled this
`Sixteenth Day of S¢ptemb¢r1986~
`
`DONALD 1. Q0100
`
`AltcstingO?'icer
`
`“madman-(W
`
`HP 1005
`Page 11 of 12
`
`

`
`UNITED STATES PATENT AND TRADE
`
`PATENTNO.
`
`
`
`CETIFICAE 4,559,543
`
`DATED
`INVENTUFNS) I
`
`I December 17,
`
`1985
`
`.
`
`.
`
`.
`
`SHIGEO TOGANOH
`ilélie'd patentandthatsaid Letters Patentishereby
`h rs cemfred that error appears m the a eve-Idem
`corrected as shown beiow:
`’
`Column 1, line 35, change "is" to -—-are——
`so to ——too—-.
`
`.
`
`ET A
`
`and change
`
`Column 2, line
`
`62,
`
`may" insert -—be—-.
`after "
`
`Column 3, line
`
`46,
`
`change
`
`"by the" to ——due to——.
`
`Column 5, line
`
`11,
`
`delete
`
`a .
`
`and
`
`Column 6, line
`
`20,
`
`change
`
`"by" to ——as a result of—-;
`
`——corresponding—-.
`
`line
`
`35,
`
`change
`
`"corresonding" vto
`
`[SEAL]
`
`Arms:
`
`Sixteemh
`
`9g. Septer I986
`
`Amstingq?icer
`
`DONALDLQUHGG
`
`HP 1005
`Page 12 of 12