EP1792732B1 - Dispositif d'enregistrement à jet d'encre et procédé de détachement d'une unité de maintenance de tête d'enregistrement - Google Patents

Dispositif d'enregistrement à jet d'encre et procédé de détachement d'une unité de maintenance de tête d'enregistrement Download PDF

Info

Publication number
EP1792732B1
EP1792732B1 EP20060256110 EP06256110A EP1792732B1 EP 1792732 B1 EP1792732 B1 EP 1792732B1 EP 20060256110 EP20060256110 EP 20060256110 EP 06256110 A EP06256110 A EP 06256110A EP 1792732 B1 EP1792732 B1 EP 1792732B1
Authority
EP
European Patent Office
Prior art keywords
maintenance unit
recording head
recording
recording device
cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP20060256110
Other languages
German (de)
English (en)
Other versions
EP1792732A1 (fr
Inventor
Masatoshi Sakakitani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of EP1792732A1 publication Critical patent/EP1792732A1/fr
Application granted granted Critical
Publication of EP1792732B1 publication Critical patent/EP1792732B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16505—Caps, spittoons or covers for cleaning or preventing drying out
    • B41J2/16508—Caps, spittoons or covers for cleaning or preventing drying out connected with the printer frame
    • B41J2/16511—Constructions for cap positioning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16517—Cleaning of print head nozzles
    • B41J2/16535—Cleaning of print head nozzles using wiping constructions
    • B41J2/16544—Constructions for the positioning of wipers
    • B41J2/16547—Constructions for the positioning of wipers the wipers and caps or spittoons being on the same movable support

Definitions

  • the present invention relates to an inkjet recording device, and more particularly to an inkjet recording device having a replaceable recording head maintenance unit.
  • the present invention also relates to a method for detaching a recording head maintenance unit.
  • a recording head protection cap of a recording head maintenance unit is pressed to the surface of a recording head to protect the recording head.
  • the maintenance unit is separated from the recording head so that the head protection cap does not damage or contaminate the recording head with ink when the protection cap is detached and/or a new head protection cap is not damaged when being attached.
  • the ink and the treatment liquid ejected to the recessed portion are mainly absorbed by the bottom surface of the recessedportion.
  • the ink and the treatment liquid are repeatedly ejected to the recessed portion, the dried materials of the ink and the treatment liquid accumulate on the recessed portion.
  • the waste liquid penetrate into the waste liquid absorbing member through the side walls of the recessed portion.
  • the waste liquid absorbing member can maintain good absorbing ability, and can absorb a large amount of waste liquids.
  • EP-A-1543978 discloses an inkjet recording device according to the preamble of claim 1.
  • the present invention provides an inkjet recording device which includes a replaceable recording head maintenance unit and which does not cause the problems in that the image forming parts such as recording heads are damaged or contaminated and the parts of a new maintenance unit such as protection caps, ink sucking caps and head cleaning blades when the new maintenance unit is attached.
  • an inkjet recording device which includes recording heads; a carriage which scans the recording heads in a main scanning direction to form an image on a receiving material fed in a sub-scanning direction; a replaceable recording head maintenance unit including recording head protection caps, an ink sucking cap, and a head cleaning blade; and a cover which is provided on a side wall of the device and which is openable or detachable to replace the maintenance unit, wherein when the cover is opened or detached from the device to detach the recording head maintenance unit from the inkjet recording device, the recording head protection caps and ink sucking cap are separated from the recording heads so as to form a gap therebetween.
  • the inkjet recording device can include an inner cover covering the recording head maintenance unit.
  • the recording head protection caps and ink sucking cap are separated from the recording heads so as to form a gap therebetween and in addition, a fastening part fastening the maintenance unit can be accessed.
  • a method for detaching a recording head maintenance unit of an inkjet recording device including recording heads which includes opening a cover of the inkjet recording device to access an the recording head maintenance unit, wherein the recording head protection caps and an ink sucking cap of the recording head maintenance unit are separated from the recording heads with a gap therebetween by opening the cover.
  • the method includes the steps of opening the cover; moving the inner cover to access a fastening part and to separate recording head protection caps and an ink sucking cap of the recording head maintenance unit the recording heads with a gap therebetween; and loosening the fastening part to detach the recording head maintenance unit from the recording device.
  • FIG. 1 is a schematic view of the entire of an example of the inkjet recording device of the present invention.
  • FIG. 2 is a schematic plan view illustrating the image forming section and the sub-scanning section of the inkjet recording device illustrated in FIG. 1 .
  • a main body 1 of the inkjet recording device includes an image forming section 2 configured to form an image on a receiving material 5 and a sub-scanning section 3 configured to feed the receiving material to a sub-scanning direction X ( FIG. 2 ).
  • a paper feeding section 4 including a paper cassette feeds sheets of the receiving material 5 one by one.
  • the thus fed receiving material sheet is fed by the sub-scanning section 3 in the sub-scanning direction to a position at which the receiving material sheet 5 faces the image forming section 2.
  • the image forming section 2 ejects ink drops toward the receiving material sheet 5 to form an image thereon.
  • the sheet 5 is discharged from the main body by a discharging section 7.
  • the receiving material sheet 5 bearing an image thereon is stacked on a discharge tray 8.
  • the sheet is fed to a reversing unit 10.
  • An image reading section (i.e., a scanner) 11, which reads an original image to input the image data of the original image such that the image forming section records the image, is provided above the discharge tray 8 .
  • the image reading section 11 includes a first optical system 15 including a lamp 13 and a mirror 14, and a second optical system 18 including mirrors 16 and 17.
  • the first and second optical systems move to read the image of an original set on a contact glass 12.
  • the image of the original is read as image data by an image reading device 20 through a lens 19, which is located before the image reading device 20.
  • the image data are processed so as to be digital image data, and the image forming section 2 forms an image according to the digital image data.
  • the image data input device is not limited to the image reading section 11.
  • the inkjet recording device can record an image according to image data sent, via a cable or a network, from an image processing device such as personal computers, an external image reading device such as image scanners, or an imaging device such as digital cameras.
  • the image forming section 2 includes a main scanning mechanism.
  • the main scanning mechanism includes a guide rod 21 and a carriage 23, which is movably supported by a guide stay (not shown), and a timing bel t 29 which is moved while being tightly stretched by a driving pulley 28A, which is rotated by a main scanning motor 27, and a driven pulley 28B. Since the timing belt 29 is moved in a main scanning direction Y, the carriage 23 is moved in the main scanning direction.
  • the recording head 24 ejects drops of the color inks on the receiving material sheet 5 while being shuttled by the carriage in the main scanning direction, wherein the receiving material sheet 5 is moved in the sub-scanning direction by the sub-scanning section 3.
  • the recording head 24 includes five ink ejecting heads, i.e., two black ink ejecting heads 24k1 and 24k2, a cyan ink ejecting head 24c, a magenta ink ejecting head 24m and a yellow ink ejecting head 24y.
  • the color inks are supplied to the ink ejecting heads from respective sub-tanks 25, which are provided on the carriage 23.
  • an ink cartridge 26 including black, cyan, magenta and yellow ink cartridges can be detachably attached to a cartridge setting portion 30.
  • the ink cartridge 26 supplies color inks to the respective sub-tanks 25.
  • the black ink cartridge supplied the black ink to the two black ink sub-tanks.
  • the ink ejecting method of the recording head 24 is not particularly limited, and for example the following known recording heads can be used.
  • a recording head maintenance unit 121 (hereinafter referred to as a maintenance unit 121) configured to maintain and recover the conditions of ink ejecting nozzles of the recording head 24 is provided as illustrated in FIG. 2 .
  • the maintenance unit 121 includes five protection caps 122 (i.e., 122k2, 122k1, 122c, 122m and 122y) configured to cap the respective ink ejecting heads 24k2, 24k1, 24c, 24m and 24y; an ink sucking cap 123 configured to suck an ink from one of the ink ejecting heads; a wiper blade (a head cleaning blade) 124 configured to wipe the ink ejecting surface of the ink ejecting heads, and an ink receiving material 125 which receives drops of inks ejected from the ink ejecting heads (i.e., blank ink ejection), which are ejected to maintain the condition of the ink ejecting heads and which do not form an image.
  • five protection caps 122 i.e., 122k2, 122k1, 122c, 122m and 122y
  • an ink sucking cap 123 configured to suck an ink from one of the ink eject
  • a blank ejection ink receiving material 126 configured to receive drops of inks in blank ink ejection is provided.
  • the ink receiving material 126 incl udes holes 127k2, 127k1, 127c, 127m and 127y corresponding to the ink ejecting heads 24k2, 24k1, 24c, 24m and 24y, respectively.
  • the sub-scanning section 3 turns the feeding direction of the receiving material sheet 5 fed from the paper feeding section 4 by 90° so that the receiving material sheet is fed while opposing the image forming section 2.
  • the sub-scanning section 3 includes an endless feeding belt 31 which is rotated while tightly stretched by a feeding roller 32 serving as a driving roller, and a driven roller 33 serving as a tension roller; a charging roller 34 serving as a charging means for applying a high alternating voltage, which is applied from a high vol tage power supply, to charge the feeding belt 31 (i.e., to securely feed the receiving material sheet 5 in the sub-scanning direction); a guide member 35 configured to guide the feeding belt 31 in the image forming region at which the feeding belt 31 opposes the image forming section 2; two rollers 36 configured to press the receiving material sheet 5 toward the feeding belt 31 at a position in which the two rollers 36 face the feeding roller 32; two spur rollers 37 configured to press an upper surface of the receiving material sheet 5, on which an image has been formed; and a separation pick
  • the paper feeding section 4 can be inserted into or taken out of the main body 1, wherein the insertion and taking-cut operation can be performed from the front side of the main body.
  • the paper feeding section 4 includes a paper cassette 41 containing sheets of the receiving material 5; a feeding roller 42 and a friction pad 43 configured to feed the receiving material sheets 5 one by one; and a pair of registration rollers 44 configured to timely feed the receiving material sheet 5 toward the image forming section 2.
  • the paper feeding section 4 has a manual paper feeding tray 46 on which plural sheets of the receiving material 5 can be set to be fed; a manual paper feeding roller 47 configured to feed the sheets of the receiving material 5 on the manual paper feeding tray 46 one by one; and a pair of feeding rollers 48 configured to feed the receiving material 5 fed from the reversing unit 10 or an additional paper cassette which is optionally set to a bottom portion of the main body 1.
  • the paper feeding members such as the feeding roller 42, the pair of registration rollers 44, the manual paper feeding roller 47, and the pair of feeding rollers 48 are rotated with a motor 49 (a HB type stepping motor) via an electromagnetic clutch (not shown).
  • the discharging section 7 includes three rollers 71a, 71b and 71c (hereinafter sometimes referred to as rollers 71) configured to feed the receiving material sheet 5 separated from the feeding belt 31 by the separation pick 38; three spur rollers 72a, 72b and 72c (hereinafter sometimes referred to as spur rollers 72) facing the three rollers 71a, 71b and 71c, respectively; lower and upper guides 73 and 74 configured to guide the receiving material sheet 5 fed by the rollers 71 and spur rollers 72; and a pair of feeding rollers 77 and a pair of discharge rollers 78 configured to feed the receiving material sheet 5, which is fed from the lower and upper guides 73 and 74, to the tray 8 via a first passage 81.
  • rollers 71 configured to feed the receiving material sheet 5 separated from the feeding belt 31 by the separation pick 38
  • spur rollers 72a, 72b and 72c (hereinafter sometimes referred to as spur rollers 72) facing the three rollers 71a, 71b and 71c,
  • a numeral 70 denotes a passage surrounded by the lower and upper guides 73 and 74.
  • the passage 70 has a sufficient length to dry the image recorded on the receiving material sheet 5 to an extent such that the recorded image is not damaged or does not contaminate the upper surface of the tray 8 or the backside of the uppermost sheet of the receiving material sheets stacked on the tray 8.
  • a branch mechanism 60 is provided which feeds the receiving material sheet 5 to the first discharge passage 81 configured to feed to the tray 8, a second discharge passage 82 configured to feed the receiving material sheet 5 to a straight discharge tray 181, or a third passage 83 for feeding the receiving material sheet 5 to the reversing unit 10.
  • the third passage 83 includes a pair of entrance rollers 91, a pair of exit rollers 92, and a guide plate 84 configured to form the third passage.
  • the reversing unit 10 includes a lateral passage 90a configured to laterally feed the receiving material sheet 5 and a switch-back passage 90b configured to switch the receiving material sheet 5 fed from the lateral passage 90a.
  • the lateral passage 90a has five pairs of feeding rollers 93
  • the switch-back passage 90b has a pair of reversible rollers 94 configured to reverse the receiving material sheet 5 fed from the lateral passage 90a and feed forward the receiving material sheet 5 to the image forming section 2 and three pairs of feeding rollers 95.
  • a branch plate 96 is provided which can swing to have a position illustrated by a solid line in FIG. 1 at which the receiving material sheet 5 can be fed from the lateral passage 90a to the switch-back passage 90b or another position illustrated by a dotted line in FIG. 1 at which the receiving material sheet 5 can be fed from the switch-back passage 90b to the pair of feeding rollers 48.
  • the receiving material sheet 5, which is fed from the reversing unit 10, is fed to the pair of registration rollers 44 via the pair of feeding rollers 48.
  • An open/close guide plate 110 is provided which can swing to allow the receiving material sheet 5, which is fed from the cassette 41, the manual paper feeding tray 46 or the reversing unit 10, to form a loop at a position between the feeding roller 32 (and the pressing roller 36) and the registration rollers 44, resulting in prevention of generation of back tension.
  • the open/close guide plate 110 swings in a direction indicated by an arrow to guide the receiving material sheet 5.
  • the open/close guide plate 110 returns to the position illustrated in FIG. 1 so that the receiving material sheet 5 can form a loop.
  • an openable and closable straight manual paper feeding tray 141 on which a sheet of the receiving material 5 can be manually set to be straightly fed to the sub-scanning section 3, is provided on one side of the inkjet recording device.
  • the straight manual paper feeding tray 141 is opened so as to have the position illustrated with a chain double-dashed line.
  • the receiving material sheet 5 is inserted along the upper surface of the straight manual paper feeding tray 141 until the tip of the sheet 5 reaches the nip between the feeding roller 32 and the pressure roller 36.
  • the straight discharge tray 181 is provided to straightly discharge a sheet of the receiving material having an image on the upper surface thereof.
  • the straight discharge passage 82 which guides the receiving material sheet 5 fed from the lower and upper guides 73 and 74 of the discharging section 7 to the straight discharge tray 181, is formed.
  • the receiving material 5 is a receiving material such as overhead projection sheets and thick papers, which is difficult to feed through a curved passage, can be fed straightly from the straight manual paper feeding tray 141 to the straight discharge tray 181. Needless to say, this straight passage can be used for general receiving material s such as sheets of plain papers having a middle or small thickness.
  • An alternating voltage (i.e., a positive and negative rectangular-wave voltage) is applied to the charging roller 34 by an AC bias applicator (not shown).
  • an AC bias applicator not shown.
  • the charging roller 34 is contacted with the insulating layer (i.e., the outermost layer) of the feeding belt 31, the feeding bel t 31 is charged such that a portion having positive charges and a portion having negative charges are alternately formed on the surface thereof.
  • uneven electric fields are formed due to the positive and negative charges formed on the surface.
  • the receiving material sheet 5 When a sheet of the receiving material 5 is fed from the paper feeding section 4, the manual paper feeding tray 46, the reversing unit 10 or the straight manual paper feeding tray 141 to the feeding belt 31, which is sandwiched by the feeding roller 32 and the pressing roller 36 and which is positively and negatively charged (i.e., forms an uneven electric field), the receiving material sheet 5 is instantly polarized due to the uneven electric field. Therefore, the receiving material sheet 5 is electrostatically attracted by the feeding belt 31, and thereby the sheet 5 is intermittently fed by the feeding belt 31 in the sub-scanning direction as the feeding belt 31 intermittently moves.
  • the recording head 24 ejects drops of the color inkjet inks according to image data to form color images on the surface of the receiving material sheet 5 while the receiving material sheet 5 is intermittently fed by the feeding belt 31. After an entire color image is formed on the receiving material sheet 5, the tip of the receiving material sheet 5 is separated by the separation pick 38 from the feeding belt 31 and fed to one of the discharge tray 8 and the straight discharge tray 181 and the reversing unit 10 through the discharge section 7 to discharge the receiving material sheet 5 from the main body 1 directly or to form another image on the backside of the receiving material sheet 5 at the image forming section 2 and then discharge the receiving material sheet 5 having images on both sides thereof.
  • an openable and closable (detachable) cover 201 is provided on a backside of the inkjet recording device to attach or detach the maintenance unit 1 21 to or from the inkjet recording device.
  • the inkjet recording device from which the cover is detached is illustrated in FIG. 4 .
  • the way to detach the maintenance unit 121 from a side plate 202 is as follows.
  • the main body 1 preferably has a sensor 201s (illustrated in FIG. 4 ) configured to detect whether the cover 201 is present or absent.
  • a sensor 201s illustrated in FIG. 4
  • any known sensors can be used for the sensor.
  • the drive of the maintenance unit 121 is controlled depending on the information (i.e., presence or absence) of the cover 201 such that the protection caps 122 for protecting the recording head 24, the ink sucking cap and the head cleaning blade are lowered when the cover 201 is absent.
  • a mark is formed on each of the maintenance unit and the side plate 202 in a manner such that when the maintenance unit has a lowered position (i.e., a detaching position), the marks have positions so as to be identical to each other, to face each other or the like. By forming such marks, it can be quickly judged from observation whether the maintenance unit has a detaching position.
  • the protection caps 22 are pressed to the surface of the recording head 24 to protect the recording head.
  • the maintenance unit 121 which includes the protection caps 122
  • problems such that the protection caps damage or contaminate the recording head with the inks occur unless the protection caps are separated from the recording head with a sufficient gap therebetween to easily detach the protection caps.
  • the maintenance unit is detached from the inkjet recording device after all of the protection caps, ink sucking cap and cleaning blade are separated from the recording head with a space therebetween (i.e., they have detaching positions).
  • a known device such as cams can be used.
  • FIG. 5 illustrates the carriage 23 and the maintenance unit 121 which protects the recording heads.
  • Numerals 203 and 204 denote an ink sucking cap and a head cleaning blade, respectively.
  • the ink sucking cap 203 also serves as a head protection cap.
  • FIG. 6 illustrates the cover 201.
  • An ink absorber 205 is provided on the inner surface of the cover 201.
  • the maintenance unit 121 detached from the inkjet recording device can be placed on the ink absorber 205. Therefore, problems such that the inks remaining in the maintenance unit contaminate the device and the vicinity thereof can be avoided.
  • FIG. 7 illustrates another example of the inkjet recording device of the present invention.
  • the cover 201 can be opened and closed while pivoting on fulcrums 206.
  • the maintenance unit 121 can be stably placed on the absorber 205.
  • the maintenance unit 121 has an inner cover 207.
  • the cover 201 is detached from the inkjet device or opened, the maintenance unit 121 is in the state illustrated in FIG. 8 .
  • fastening screws 208 illustrated in FIG. 10 , which serve as fastening means (hereinafter referred to as a fastening part), cannot be accessed and thereby the maintenance unit cannot be detached from the device.
  • the fastening screws 208 can be accessed by rotating the inner cover 207 by 90 degree as illustrated in FIGS. 9A and 9B .
  • the inner cover 207 is connected with the driving section (not shown) of the maintenance unit 121 via a connector 209.
  • the driving member for driving the head protection caps 122, the ink sucking cap 203 and the head cleaning blade 204 is moved, and thereby the head protection caps 1 22, the ink sucking cap 203 and the head cleaning blade 204 are also moved.
  • the inner cover 207 is rotated so that holes 210 face the fastening screws 208, the head protection caps 122, the ink sucking cap 203 and the head cleaning blade 204 are lowered (i.e., they are separated from the recording heads with a gap therebetween).
  • rack and pinion, links, cams, gears and the like can also be used as the driving mechanism.
  • a mechanism including a rack-and-pinion 220, a gear 221 and a driving shaft 222 can be used for raising the inner cover 207 so that the holes 210 face the fastening screws 208 as illustrated in FIGS. 10A and 10B .
  • the inner cover moving operation i.e., the cap lifting operation
  • the cap lifting operation may be performed by closing the cover 201 using the sensor 201s provided at the cover 201.
  • FIG. 11 illustrates another example of the inkjet recording device of the present invention.
  • the maintenance unit 1 21 is fixed to a side plate 121a thereof.
  • the side plate 121a is united with the side unit 1a of the main body 1 via an elevating mechanism 211.
  • the carriage 23 moves in the right and left direction (in FIG. 11 ) along the guide rod 21, which is fixed to the side unit 1a.
  • the elevating mechanism 211 which is driven by a motor (not shown), moves the side plate 121a upward and downward, thereby moving the head maintenance unit 121 upward and downward.
  • the elevating mechanism is driven to lower the head maintenance unit 121 to a position such that the protection caps, etc. do not damage or contaminate the recording heads.
  • the head maintenance unit 121 may be lowered by the elevating mechanism when a service man orders the operation using a key in an operation panel (not shown) of the inkjet recording device.
  • the head maintenance unit may be lowered by the elevating mechanism when a release lever (not shown) is operated.
  • the elevating mechanism 211 can be operated by a motor or the lever itself.
  • the elevating mechanism may lift the side plate to protect the recording heads with head protection caps and the ink sucking cap.
  • FIG. 1 2 illustrates another example of the inkjet recording device of the present invention.
  • the maintenance unit 121 is fixed to the side plate unit 1a of the main body 1, and the carriage 23 and the guide rod 21 are united with the side plate unit 1a via an elevating mechanism 211'.
  • the carriage 23 moves in the right and left direction (in FIG. 12 ) along the guide rod 21.
  • the elevating mechanism 211' moves the combination of the guide rod 21 and the carriage 23 upward and downward (for example, by 5 mm) while being driven by a motor (not shown).
  • the elevating mechanism 211' is driven to heighten the carriage 23 to a position such that the maintenance unit (e.g., the head protection caps, the ink sucking cap, and the head cleaning blade) do not damage or contaminate the recording heads 24 when the maintenance unit is detached.
  • the elevation operation can also be performed by keyboard input made by a service man or using a release lever as mentioned above.
  • the elevating mechanism 211' lowers the carriage such that the recording heads are covered with the head protection caps and the ink sucking cap.
  • the inkjet recording device of the present invention has recording heads, and a replaceable recording head maintenance unit including an optional inner cover, head protection caps, an ink sucking cap and a head cleaning blade.
  • a cover is opened or detached to detach the maintenance unit from the device to be replaced with new one or when the optional inner cover is moved after opening the cover, the head protection caps, ink sucking cap and head cleaning blade are separated from the recording heads with a gap therebetween. Therefore, the head protection caps, ink sucking cap and head cleaning blade do not damage or contaminate the recording heads when the maintenance unit is detached from the inkjet recording device and a new maintenance unit is attached to the inkjet recording device.

Landscapes

  • Ink Jet (AREA)

Claims (13)

  1. Dispositif d'enregistrement à jet d'encre comportant :
    une multiplicité de têtes d'enregistrement (24) dont chacune est configurée pour éjecter une encre ;
    un chariot (23) configuré pour balayer les têtes d'enregistrement dans une direction de balayage principale afin de former une image sur une matière de réception (5) avancée dans une direction de balayage secondaire ;
    une unité d'entretien de tête d'enregistrement (121) comportant :
    des bouchons de protection de tête d'enregistrement (122) configurés afin de protéger les têtes d'enregistrement ;
    un bouchon d'aspiration d'encre (203) configuré afin d'aspirer de l'encre des têtes d'enregistrement ; et
    une lame de nettoyage de tête d'enregistrement (204) configurée afin de nettoyer une surface des têtes d'enregistrement, caractérisé en ce que
    des moyens de couvercle sont prévus, lesquels peuvent être ouverts ou démontés pour le remplacement de l'unité d'entretien de tête d'enregistrement,
    les bouchons de protection de tête d'enregistrement et le bouchon d'aspiration d'encre étant séparés des têtes d'enregistrement avec un espace entre eux lorsque le capot est ouvert ou démonté du dispositif d'enregistrement à jet d'encre afin de démonter l'unité d'entretien de tête d'enregistrement du dispositif d'enregistrement à jet d'encre.
  2. Dispositif d'enregistrement à jet d'encre selon la revendication 1, dans lequel lesdits moyens de capot comportent un capot (201) qui est prévu sur une paroi latérale du dispositif d'enregistrement à jet d'encre.
  3. Dispositif d'enregistrement à jet d'encre selon la revendication 1, dans lequel lesdits moyens de capot comportent un capot interne (207) configuré afin de recouvrir l'unité d'entretien de tête d'enregistrement et formant une partie de l'unité à: entretien de tête d'enregistrement ; et
    un capot (201) qui est prévu sur une paroi latérale du dispositif d'enregistrement à jet d'encre et qui peut être ouvert ou démonté afin de remplacer l'unité d'entretien de tête d'enregistrement, et
    les bouchons de protection de tête d'enregistrement et le bouchon d'aspiration d'encre étant séparés des têtes d'enregistrement avec un espace entre eux lorsque le capot interne est déplacé une fois que le capot est ouvert ou démonté du dispositif d'enregistrement à jet d'encre afin de démonter l'unité d'entretien de tête d'enregistrement du dispositif d'enregistrement à jet d'encre.
  4. Dispositif d'enregistrement à jet d'encre selon l'une quelconque des revendications précédentes, dans lequel, lorsque les moyens de capot sont ouverts ou démontés du dispositif d'enregistrement à jet d'encre afin de démonter l'unité d'entretien de tête d'enregistrement (121) du dispositif d'enregistrement à jet d'encre, l'unité d'entretien de tête d'enregistrement est abaissée de telle sorte que les bouchons de protection de tête d'enregistrement (122) et le bouchon d'aspiration d'encre (203) sont séparés des têtes d'enregistrement avec un espace entre eux.
  5. Dispositif d'enregistrement à jet d'encre selon l'une quelconque des revendications 1 à 4, dans lequel, lorsque les moyens de capot sont ouverts ou démontés du dispositif d'enregistrement à jet d'encre afin de démonter l'unité d'entretien de tête d'enregistrement (121) du dispositif d'enregistrement à jet d'encre, les têtes d'enregistrement (24) sont soulevés de telle sorte que les bouchons de protection de tête d'enregistrement (122) et le bouchon d'aspiration d'encre (203) sont séparés des têtes d'enregistrement avec un espace entre eux.
  6. Dispositif d'enregistrement à jet d'encre selon la revendication 3, dans lequel, lorsque le capot interne est déplacé une fois que le capot (201) est ouvert ou démonté du dispositif d'enregistrement à jet d'encre afin de démonter l'unité d'entretien de tête d'enregistrement (121) du dispositif d'enregistrement à jet d'encre, on peut accéder à une partie de fixation (208) qui fixe l'unité d'entretien de tête d'enregistrement et l'unité d'entretien de tête d'enregistrement est abaissée de telle sorte que les bouchons de protection de tête d'enregistrement (122) et le bouchon d'aspiration d'encre (203) sont séparés des têtes d'enregistrement (24) avec un espace entre eux.
  7. Dispositif d'enregistrement à jet d'encre selon la revendication 3, dans lequel, lorsque le capot interne est déplacé une fois que le capot (201) est ouvert ou démonté du dispositif d'enregistrement à jet d'encre afin de démonter l'unité d'entretien de tête d'enregistrement (121) du dispositif d'enregistrement à jet d'encre, on peut accéder à une partie de fixation (208) qui fixe l'unité d'entretien de tête d'enregistrement et les têtes d'enregistrement (24) sont soulevés de telle sorte que les bouchons de protection de tête d'enregistrement (122) et le bouchon d'aspiration d'encre (203) sont séparés des têtes d'enregistrement avec un espace entre eux.
  8. Dispositif d'enregistrement à jet d'encre selon les revendications 3, 6 ou 7, dans lequel le capot interne est déplacé par une crémaillère et un pignon.
  9. Dispositif d'enregistrement à jet d'encre selon l'une quelconque des revendications 2 à 8, dans lequel le capot (201) comporte :
    un absorbeur d'encre (205) disposé sur une surface interne du capot sur lequel l'unité d'entretien de tête d'enregistrement (121) peut être placée.
  10. Dispositif d'enregistrement à jet d'encre selon l'une quelconque des revendications précédentes, comportant en outre :
    un capteur (201s) configuré afin de détecter si les moyens de capot sont ouverts ou fermés.
  11. Dispositif d'enregistrement à jet d'encre selon la revendication 10, dans lequel, lorsque les moyens de capot sont fermés une fois que l'unité d'entretien de tête d'enregistrement (121) est démontée et une nouvelle unité d'entretien de tête d'enregistrement est fixée, le capteur (201s) détecte que les moyens de capot sont présents et les bouchons de protection de tête d'enregistrement (122) et le bouchon d'aspiration d'encre (203) sont fixés sur les têtes d'enregistrement (24) afin de protéger les têtes d'enregistrement.
  12. Procédé de démontage d'une unité d'entretien de tête d'enregistrement (121) d'un dispositif d'enregistrement à jet d'encre comprenant des têtes d'enregistrement (24), comportant :
    l'ouverture d'un capot (201) du dispositif d'enregistrement, des bouchons de protection de tête d'enregistrement (122) et un bouchon d'aspiration d'encre (203) de l'unité d'entretien de tête d'enregistrement étant séparés des têtes d'enregistrement avec un espace entre eux afin d'ouvrir le capot.
  13. Procédé de démontage d'une unité d'entretien de tête d'enregistrement (121) d'un dispositif d'enregistrement à jet d'encre comprenant des têtes d'enregistrement (24), le dispositif d'enregistrement à jet d'encre comprenant un capot interne (207), le procédé comportant :
    l'ouverture d'un capot (201) du dispositif d'enregistrement ;
    le déplacement d'un capot interne (207) afin d'accéder à une partie de fixation (208) qui fixe l'unité d'entretien de tête d'enregistrement, des bouchons de protection de tête d'enregistrement (122) et un bouchon d'aspiration d'encre (203) de l'unité d'entretien de tête d'enregistrement étant séparés des têtes d'enregistrement avec un espace entre eux en déplaçant le capot interne ; et
    le desserrage de la partie de fixation afin de démonter l'unité d'entretien de tête d'enregistrement du dispositif d'enregistrement.
EP20060256110 2005-11-29 2006-11-29 Dispositif d'enregistrement à jet d'encre et procédé de détachement d'une unité de maintenance de tête d'enregistrement Not-in-force EP1792732B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005343072A JP4863702B2 (ja) 2005-11-29 2005-11-29 インクジェット記録装置

Publications (2)

Publication Number Publication Date
EP1792732A1 EP1792732A1 (fr) 2007-06-06
EP1792732B1 true EP1792732B1 (fr) 2008-04-23

Family

ID=37852737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060256110 Not-in-force EP1792732B1 (fr) 2005-11-29 2006-11-29 Dispositif d'enregistrement à jet d'encre et procédé de détachement d'une unité de maintenance de tête d'enregistrement

Country Status (3)

Country Link
EP (1) EP1792732B1 (fr)
JP (1) JP4863702B2 (fr)
DE (1) DE602006000993T2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6160270B2 (ja) * 2013-06-05 2017-07-12 セイコーエプソン株式会社 メンテナンスユニット、および液体噴射装置
JP6245168B2 (ja) * 2014-12-26 2017-12-13 京セラドキュメントソリューションズ株式会社 インクジェット記録装置
JP6666579B2 (ja) * 2015-03-20 2020-03-18 セイコーエプソン株式会社 液体噴射装置
JP6521229B2 (ja) 2015-03-20 2019-05-29 セイコーエプソン株式会社 液体噴射装置
JP6390751B2 (ja) * 2017-04-27 2018-09-19 セイコーエプソン株式会社 液体噴射装置
DE102019118989A1 (de) * 2019-07-12 2021-01-14 Weidmüller Interface GmbH & Co. KG Drucker zum Bedrucken von plattenartigen Druckmedien, Säuberungseinrichtung für den Drucker sowie Verfahren zum Warten des Druckers
CN114940021A (zh) 2021-02-16 2022-08-26 精工爱普生株式会社 液体喷出装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2862284B2 (ja) * 1989-09-19 1999-03-03 株式会社東芝 現像装置
JPH07199650A (ja) * 1993-12-28 1995-08-04 Ricoh Co Ltd 画像形成装置
US6328412B1 (en) * 1995-07-31 2001-12-11 Hewlett-Packard Company Integrated translational service station for inkjet printheads
JPH11184197A (ja) * 1997-12-19 1999-07-09 Ricoh Co Ltd 画像形成装置
US6520621B1 (en) * 1999-01-08 2003-02-18 Hewlett-Packard Company Dual wiper scrapers for incompatible inkjet ink wipers
JP2002207408A (ja) * 2001-01-10 2002-07-26 Canon Inc 電子写真画像形成装置及びプロセスカートリッジ
GB2394445B (en) * 2002-10-22 2005-12-07 Hewlett Packard Co Printhead service station
JP4570865B2 (ja) * 2003-12-15 2010-10-27 株式会社リコー ヘッドクリーニング装置及び画像形成装置
JP2005254636A (ja) * 2004-03-12 2005-09-22 Ricoh Co Ltd 画像形成装置

Also Published As

Publication number Publication date
EP1792732A1 (fr) 2007-06-06
JP4863702B2 (ja) 2012-01-25
DE602006000993T2 (de) 2009-05-28
DE602006000993D1 (de) 2008-06-05
JP2007144826A (ja) 2007-06-14

Similar Documents

Publication Publication Date Title
EP1792732B1 (fr) Dispositif d'enregistrement à jet d'encre et procédé de détachement d'une unité de maintenance de tête d'enregistrement
US8714682B2 (en) Image forming apparatus
US7753500B2 (en) Image forming apparatus
US8752953B2 (en) Image forming apparatus
EP1695831B1 (fr) Appareil de formation d'image
US8132905B2 (en) Recording device having a conveying unit that conveys a recording medium
US20140152745A1 (en) Image forming apparatus
US7673984B2 (en) Image forming apparatus having a removable output unit
JP4408847B2 (ja) 画像形成装置及び用紙搬送装置
US8491090B2 (en) Image forming apparatus
JP2012035440A (ja) 画像形成装置
US7434928B2 (en) Image forming apparatus
US8777370B2 (en) Image forming apparatus
JP2006111002A (ja) 画像形成装置及び搬送装置
JP4680050B2 (ja) 画像形成装置
US9409400B2 (en) Image forming apparatus configured to include nozzle face capping control
JP4776373B2 (ja) 画像形成装置
JP4651487B2 (ja) 画像形成装置
JP5656105B2 (ja) 画像形成装置
US7367667B2 (en) Image forming apparatus with conveying part arranged to allow drying
JP5293918B2 (ja) 画像形成装置
JP2005022318A (ja) プラテン板及び液体吐出装置
US8746842B2 (en) Image forming apparatus
JP5347579B2 (ja) 画像形成装置
JP5145909B2 (ja) 画像形成装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20061215

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

AKX Designation fees paid

Designated state(s): DE ES FR GB IT NL

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT NL

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 602006000993

Country of ref document: DE

Date of ref document: 20080605

Kind code of ref document: P

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080803

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080423

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20090126

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080423

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20141119

Year of fee payment: 9

Ref country code: GB

Payment date: 20141119

Year of fee payment: 9

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20151129

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151130

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20171121

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602006000993

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190601