EP2202184B1 - Appareil d'impression - Google Patents

Appareil d'impression Download PDF

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Publication number
EP2202184B1
EP2202184B1 EP08291268A EP08291268A EP2202184B1 EP 2202184 B1 EP2202184 B1 EP 2202184B1 EP 08291268 A EP08291268 A EP 08291268A EP 08291268 A EP08291268 A EP 08291268A EP 2202184 B1 EP2202184 B1 EP 2202184B1
Authority
EP
European Patent Office
Prior art keywords
filling
paper cassette
stack
sheets
paper
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
EP08291268A
Other languages
German (de)
English (en)
Other versions
EP2202184A1 (fr
Inventor
Michael Pichler
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.)
Sagemcom Documents SAS
Original Assignee
Sagemcom Documents SAS
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 Sagemcom Documents SAS filed Critical Sagemcom Documents SAS
Priority to EP08291268A priority Critical patent/EP2202184B1/fr
Priority to AT08291268T priority patent/ATE517835T1/de
Priority to ES08291268T priority patent/ES2370367T3/es
Publication of EP2202184A1 publication Critical patent/EP2202184A1/fr
Application granted granted Critical
Publication of EP2202184B1 publication Critical patent/EP2202184B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/26—Supports or magazines for piles from which articles are to be separated with auxiliary supports to facilitate introduction or renewal of the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
    • B65H2405/11—Parts and details thereof
    • B65H2405/114—Side, i.e. portion parallel to the feeding / delivering direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/27—Other problems
    • B65H2601/271—Over stacking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/06—Office-type machines, e.g. photocopiers

Definitions

  • the invention relates to a printing apparatus according to the preamble of claim 1.
  • Printing apparatuses are known for example as printers, fax machines and/or copying machines.
  • Known printing apparatuses often comprise the paper cassette for providing a stack of paper.
  • the JP 06 247 568 A shows a paper cassette with stoppers to limit the capacity of the paper cassette.
  • the JP 11 165 884 A shows a roteable filling-level limiting apparatus of a paper cassette.
  • the JP 2004 189 388 A discloses a cover sensor able to detect a maximum capacity exceeding.
  • the US 2007/040 323 A describes a stopper mechanism preventing a sheet to enter the paper cassette in the first direction while a sheet within the paper cassette is able to be moved in the second direction to be fed to the printer.
  • the disadvantageous aspect in conventional printing apparatuses with conventional paper cassettes is that when the paper cassette is filled completely, i.e. it is filled to 100% capacity or even more, which means it is provided with more sheets of paper than required, the removal of the sheets of paper from the stack of paper in the printing apparatus occurs repeatedly in a faulty way, which means oftentimes not with the required high reliability.
  • the occurring faults are that two sheets are drawn in simultaneously, that no sheet is drawn in or that a sheet is damaged when drawn in, e.g. it is torn.
  • the disadvantageous aspect is that the printing process is incomplete and/or erroneous or that the printing process is interrupted. It is further disadvantageous in this respect that in the erroneous drawing of the sheet of paper there will be a paper jam in the printing apparatus and printing can only be resumed after operator intervention, thus leading to a waste of time and/or additional costs. Two simultaneously withdrawn sheets of paper can further cause erroneous printing.
  • the printed document may comprise disturbing empty sheets which may have to be sorted out.
  • the invention further relates to a method according to the preamble of claim 10.
  • Figs. 1 and 2 show a preferred first embodiment of a paper cassette 1 of a printing apparatus with at least one paper cassette 1 for receiving a stack of sheets 2, especially a stack of paper, with the paper cassette 1 being provided for arrangement in a readiness position and in a loading position, with stack of sheets 2 arranged for removal of sheets for a printing process in the readiness position of paper cassette 1 and the paper cassette 1 is arranged for loading with sheets, especially paper, in the loading position, with the paper cassette 1 comprising a filling-level limiting apparatus 3 for predetermining the maximum filling level 4 of the receivable stack of sheets 2, and with filling-level limiting apparatus 3 being provided in the loading position of the paper cassette 1 for contact with an upper surface 21 of the stack of sheets 2.
  • the filling-level limiting apparatus 3 is arranged at a distance from an upper surface 21 of the stack of sheets 2.
  • either the filling-level limiting apparatus 3 and/or the stack of paper are displaced relative to one another during the displacement of the paper cassette from its loading position to its readiness position.
  • the uppermost sheet of the stack of sheets 2 which thus forms the upper surface 21 of the stack of sheets 2 rests in a substantially loose manner on the one but top sheet of the stack of sheets 2 and substantially low holding forces act thereby. It is advantageous that the uppermost sheet can be withdrawn with a low amount of effort and with high reliability from the stack of paper and can be drawn for printing into the printing apparatus. It is also advantageous in this respect that the reliability is high that only one sheet is drawn in during the withdrawal of the uppermost sheet into the printing apparatus. It is further advantageous that during the withdrawal of the uppermost sheet into the printing apparatus the sheet of paper is twisted merely to a very low extent, thus preventing with a high amount of reliability the tearing, deformation and/or twisting of the sheet to be drawn in.
  • a paper jam during the withdrawal of the uppermost sheet can advantageously be prevented and similarly the positioning of the withdrawn sheet in the printing apparatus can be improved, so that the printed image can be positioned with more precision on the sheet of paper and/or further means for positioning the sheet in the printing apparatus can be omitted.
  • the printing apparatus can be arranged especially as a printer and/or copying machine.
  • the sheet can be printed by the printing apparatus by means of laser printing, needle printing, ink-jet printing and/or thermoprinting.
  • the sheet is a thin-layered medium suitable for receiving a print image.
  • the sheet suitable for printing in the printing apparatus is usually provided with a sheet thickness of between 0.01 mm and 1 mm.
  • the sheet can be arranged especially as a sheet of paper which can also be designated as paper. Similarly, the sheet may be made of plastic and therefore be designated as a foil.
  • the sheet can especially have a surface size of between A6 and A00 or can be cut with standardized dimensions or special dimensions. Sheets are usually arranged to be rectangular, with paper cassette 1 being arranged especially for rectangular sheets.
  • a filling-level boundary area 34 of the filling-level limiting apparatus 3 which can come into contact with the upper surface 21 and a paper stack support 11 are arranged in a third position 13 closer to one another than in a fourth position 14 of the same.
  • the third position 13 - as shown in Fig. 1 - can be arranged to a frame 12 of the paper cassette 1 by means of a relative movement of the filling-level limiting apparatus 3 and/or to a frame 12 of the paper cassette 1 by a relative movement of the paper stack support 11.
  • Filling-level limiting apparatus 3 and paper stack support 11 are arranged in their third position in the loading position of the paper cassette 1.
  • Filling-level limiting apparatus 3 and paper stack support 11 are arranged in their fourth position 14 in the readiness position of the paper cassette 1.
  • the distanced arrangement of the filling-level limiting apparatus 3 to the upper surface 21 of the stack of sheets 2 can be achieved especially in such a way that the filling-level limiting apparatus 3 is moved for this purpose relative to the paper stack support 11 of the paper cassette 1. It can be provided advantageously that the filling-level limiting apparatus 3 is arranged in a first position 31 in the loading position of the paper cassette 1, and that the filling-level limiting apparatus 3 is arranged in a second position 32 in the readiness position of the paper cassette 1.
  • the filling-level limiting apparatus 3 and especially the filling-level boundary area 34 of the filling-level limiting apparatus 3, is in contact with the upper surface 21 of the stack of sheets 2.
  • the filling-level limiting apparatus 3 and especially the filling-level boundary area 34 of the filling-level limiting apparatus 3, is spaced from the upper surface 21 of the stack of sheets 2.
  • the motion between the first position 31 and the second position 32 can especially be arranged as a movement of translation, with the filling-level limiting apparatus 3 being moved in a substantially translational way.
  • said translational movement can be aligned parallel to a normal line 22 to the upper surface 21 of the stack of sheets 2. It is advantageous in this respect that the filling-level limiting apparatus 3 can be lifted off the upper surface 21 of the stack of sheets 2 with minimal translational movement.
  • the filling-level limiting apparatus 3 comprises a lateral guide means 36 for lateral guidance of the stack of sheets 2.
  • the lateral guide means 36 can be provided especially for lateral guidance of the stack of sheets 2 both in the first position 31, especially also in the third position 13, as well as in the second position 32, especially also in the fourth position 14, with the stack of sheets 2 being laterally guided by means of a lateral guide means 36 which is comprised by the filling-level limiting apparatus 3.
  • the lateral guide means 36 can preferably be arranged in a substantially planar way.
  • the filling-level limiting apparatus 3 and/or the paper stack support 11 can be moved parallel to the substantially parallel lateral guide means 36 between the first position 31 and the second position 32, with the distance of the lateral guide means 36 to the stack of sheets 2 not changing. It is advantageous that despite the motion of the filling-level limiting apparatus 3 the lateral guidance of the sheet remains substantially the same both in the loading position as well as in the readiness position of the paper cassette 1.
  • the filling-level boundary area 34 of the filling-level limiting apparatus 3 can be lifted off the upper surface 21 of the stack of sheets 2 by means of the release device 5, with the release device 5 being provided for moving the filling-level limiting apparatus 3 from the first position 31 to the second position 32 during the displacement of the paper cassette 2 from the loading position to the readiness position.
  • the release device 5 is shown schematically in Fig. 2 .
  • the guide surface 35 can advantageously be moved relative to the release device 5 and brought into contact with the release device 5.
  • the guide surface 35 as shown in Figs.
  • the filling-level limiting apparatus 3 in the loading position will become arranged in the first position 31 automatically, which means without any manual action on the part of a user of the printing apparatus, for which purpose a pretensioning element 33 can advantageously be provided.
  • the release device 5 is arranged on a housing 6 of the printing apparatus and, in the readiness position of paper cassette 1, is provided for making contact with the filling-level limiting apparatus 3, especially a guide surface 35 of the filling-level limiting apparatus 3.
  • the filling-level limiting apparatus 3 can thus be moved easily from the first position 31 to the second position 32, with the filling-level limiting apparatus 3 being moved by means of a release device 5.
  • the release device 5 can be arranged as a guide rib, hump and/or as a cam, so that the motion of the filling-level limiting apparatus 3 can be guided in a simple and reliable way, with this occurring without any manual intervention during the displacement of the paper cassette 2 from the loading position to the readiness position and vice-versa.
  • the release device 5 in the readiness position of paper cassette 1, is arranged as a counter-bearing to the filling-level limiting apparatus 3, especially to the guide surface 35 of the filling-level limiting apparatus 3, the release device 5 can also be designated as a counter-bearing.
  • the pretensioning element 33 is connected with the filling-level limiting apparatus 3 and the paper cassette 1. It can advantageously be provided that the pretensioning element 33 pretensions the filling-level boundary area 34 in the direction towards the paper stack support 11 and that the pretensioning element 33 tensions the release device 5 in the readiness position, i.e. it is moved in a direction against the direction of relaxation of the pretensioning element 33.
  • the release device 5 is arranged in a contact-free manner relative to the filling-level boundary area 34, the pretensioning element 33 relaxes, through which the filling-level limiting apparatus 3 is arranged substantially automatically in the first position 31 through the pretensioning element 33 and moves substantially automatically from the second position 32 to the first position 31.
  • This substantially automatic arrangement of the filling-level limiting apparatus 3 in its first position 31 can occur in an especially simple and reliable manner when the pretensioning element 33 is arranged between the paper stack support 11 and the guide surface 35.
  • the pretensioning element 33 can especially comprise a metal spring, and can preferably be arranged as a metal spring.
  • the filling-level limiting apparatus 3 can comprise a stop element which acts in the loading position and which is provided that the filling-level limiting apparatus 3 cannot displace from the first position 31 in the direction towards the second position 32 during the filling of the paper cassette 4.
  • the stop element can be arranged advantageously between the paper stack support 11 and the guide surface 35, thus ensuring a specific minimum distance between the paper stack support 11 and the guide surface 35.
  • the stop element is ineffective in the readiness position.
  • the stop element can be moved out of the intermediate space between the paper stack support 11 and the guide surface 35, through which the filling-level limiting apparatus 3 can be displaced beyond the first position 31 in the direction towards the second position 32.
  • the moving out of the stop element can advantageously occur by means of a counter-bearing, especially a counter-bearing comprised by the housing, which is arranged on the housing of the printing apparatus.
  • the stop element can be displaced or twisted, and tilted for example, when moving the stop element out of the intermediate space between the paper stack support 11 and the guide surface 35.
  • the filling-level limiting apparatus 3 is arranged in a firmly positioned way relative to the frame 12 of the paper cassette 1, and that the paper stack support 11 is arranged to be movable relative to the frame 12 of the paper cassette 1, especially relatively displaceable to the frame 12.
  • Such relative motion between the filling-level limiting apparatus 3 and the paper stack support 11 can occur especially in the same manner as described above, with the filling-level limiting apparatus 3 being arranged in a firmly positioned way relative to the frame 12 and the paper stack support 11 being moved.
  • the second embodiment of paper cassette 1 can be operated by means of a method in which it is provided that the paper stack support 11 which is arranged in the loading position of the paper cassette 1 in the fifth position is moved to a sixth position when displacing the paper cassette 1 from the loading position of the paper cassette 1 to the readiness position of the paper cassette 1, with the filling-level limiting apparatus 3 and the paper stack support 11 - relatively to each other - being arranged in the loading position in the third position 13 and the filling-level limiting apparatus 3 and the paper stack support 11 - relatively to each other - being arranged in the readiness position in the fourth position 14.
  • the release device 5 is provided for cooperating with the paper stack support 11.
  • the release device 5 can especially be arranged on the housing and disposed thereon in such a way that during the displacement of the paper cassette 1 to its readiness position the release device 5 moves the paper stack support 11 away from the filling-level boundary area 34.
  • the pretensioning element 33 can especially be provided which can be arranged and/or disposed especially according to the above explanations made in connection with the pretensioning element 33.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Claims (11)

  1. Un dispositif d'impression, comprenant au moins un bac de papier (1) pour recevoir une pile de feuilles (2), en particulier une pile de papier, le bac de papier (1) étant fourni pour être disposé dans une position de préparation et une position de chargement, la pile de feuilles (2) étant disposée dans la position de préparation pour le retrait des feuilles pour un processus d'impression et le bac de papier (1) étant disposé dans la position de chargement pour charger les feuilles, en particulier, le papier, le bac de papier (1) comprenant un dispositif de limitation du niveau de remplissage (3) pour prédéterminer le niveau de remplissage maximum (4) de la pile de feuilles (2) recevable, le dispositif de limitation du niveau de remplissage (3) étant déplaçable de façon translationnelle entre une première position (31) dans la position de chargement du bac de papier (1) et une deuxième position (32) dans la position de préparation du bac de papier (1), le dispositif de limitation du niveau de remplissage (3) étant fourni dans la position de chargement du bac de papier (1) pour faire contact avec une surface supérieure (21) de la pile de feuilles (2), et le dispositif de limitation du niveau de remplissage (3) est disposé dans la position de préparation du bac de papier (1) à une distance de la surface supérieure (21) de la pile de feuilles (2), caractérisé en ce que le mouvement translationnel est aligné normalement avec la surface supérieure (21) de la pile de feuilles (2) et en ce que le dispositif de limitation du niveau de remplissage (3) comprend un moyen de guidage latéral (36) pour un guidage latéral de la pile de feuilles (2).
  2. Un dispositif d'impression selon la revendication 1, caractérisé en ce que le dispositif de limitation du niveau de remplissage (3) est disposé dans la position de chargement du bac de papier (1) dans une première position (31), le dispositif de limitation du niveau de remplissage (3) est disposé dans la position de préparation du bac de papier (1) dans une deuxième position (32), et une zone limite du niveau de remplissage (34) du dispositif de limitation du niveau de remplissage (3)-dont la zone limite du niveau de remplissage (34) peut faire contact avec la surface supérieure (21) - est disposée dans la première position (31) plus près d'un support de pile de papier (11) du bac d'alimentation (1) que dans la deuxième position (32).
  3. Un dispositif d'impression selon la revendication 2, caractérisé en ce qu'un dispositif de libération (5) est fourni pour déplacer le dispositif de limitation du niveau de remplissage (3) de la première position (31) à la deuxième position (32) pendant le déplacement du bac de papier (1) depuis la position de chargement à la position de préparation.
  4. Un dispositif d'impression selon la revendication 3, caractérisé en ce que le dispositif de libération (5) est disposé sur un boîtier (6) du dispositif d'impression et est fourni pour faire contact avec l'appareil de limitation du niveau de remplissage (3), en particulier une surface de guidage (35) du dispositif de limitation du niveau de remplissage (3), dans la position de préparation du bac de papier (1).
  5. Un dispositif d'impression selon les revendications 3 ou 4, caractérisé en ce que le dispositif de libération (5) est disposé comme une nervure de guide, comme une bosse et/ou une came.
  6. Un dispositif d'impression selon l'une des revendications 1 à 5, caractérisé en ce qu'un élément de préréglage (33) est connecté au dispositif de limitation du niveau de remplissage (3) et au bac de papier (1).
  7. Un dispositif d'impression selon la revendication 6, caractérisé en ce que l'élément de préréglage (33) est disposé entre le support de pile de papier (11) et la surface de guidage (35).
  8. Un dispositif d'impression selon l'une des revendications 6 ou 7, caractérisé en ce que l'élément de préréglage (22) comprend un ressort en métal, et est particulièrement disposé comme un ressort en métal.
  9. Un dispositif d'impression selon l'une des revendications 1 à 8, caractérisé en ce que les moyens de guidage latéraux (36) sont disposés de façon substantiellement planaire.
  10. Un procédé pour faire fonctionner un dispositif d'impression, comprenant au moins un bac de papier (1) pour recevoir une pile de feuilles (2), en particulier une pile de papier, le bac de papier (1) étant fourni pour être disposé dans une position de préparation et une position de chargement, la pile de feuilles (2) étant disposée dans la position de préparation du bac de papier (1) pour le retrait des feuilles pour un processus d'impression et le bac de papier (1) étant disposé dans la position de chargement du bac de papier (1) pour charger les feuilles, en particulier, le papier, le bac de papier (1) comprenant un dispositif de limitation du niveau de remplissage (3) pour prédéterminer le niveau de remplissage maximum (4) de la pile de feuilles (2) recevable, caractérisé en ce que le dispositif de limitation du niveau de remplissage (3) qui est disposé dans une première position (31) étant fourni pour faire contact avec une surface supérieure (21) de la pile de feuilles (2) dans la position de chargement du bac de papier (1), est déplacé de façon transactionnelle et normale vers la surface supérieure (21) de la pile de feuilles (2) en une deuxième position (32) pendant le déplacement du bac de papier (1) à la position de préparation du bac de papier (1), le dispositif de limitation du niveau de remplissage (3) étant disposé à une distance d'une surface supérieure (21) de la pile de feuilles (2) dans la position de préparation du bac de papier (1), et en ce que la pile de feuilles (2) est guidée latéralement par l'intermédiaire d'un moyen de guidage latéral (36) compris dans le dispositif de limitation du niveau de remplissage (3).
  11. Un procédé selon la revendication 10, caractérisé en ce que le dispositif de limitation du niveau de remplissage (3) ou le support de la pile de papier (11) est déplacé au moyen d'un dispositif de libération (5).
EP08291268A 2008-12-23 2008-12-23 Appareil d'impression Not-in-force EP2202184B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08291268A EP2202184B1 (fr) 2008-12-23 2008-12-23 Appareil d'impression
AT08291268T ATE517835T1 (de) 2008-12-23 2008-12-23 Druckvorrichtung
ES08291268T ES2370367T3 (es) 2008-12-23 2008-12-23 Aparato de impresión.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08291268A EP2202184B1 (fr) 2008-12-23 2008-12-23 Appareil d'impression

Publications (2)

Publication Number Publication Date
EP2202184A1 EP2202184A1 (fr) 2010-06-30
EP2202184B1 true EP2202184B1 (fr) 2011-07-27

Family

ID=40440465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08291268A Not-in-force EP2202184B1 (fr) 2008-12-23 2008-12-23 Appareil d'impression

Country Status (3)

Country Link
EP (1) EP2202184B1 (fr)
AT (1) ATE517835T1 (fr)
ES (1) ES2370367T3 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06247568A (ja) * 1993-02-22 1994-09-06 Canon Inc シート積載装置及び画像記録装置
JPH11165884A (ja) * 1997-12-03 1999-06-22 Canon Inc シート材積載手段及び画像形成装置
JP2004189388A (ja) * 2002-12-10 2004-07-08 Minolta Co Ltd 給紙装置
JP2005028621A (ja) * 2003-07-08 2005-02-03 Brother Ind Ltd プリンタ装置
JP2005225643A (ja) * 2004-02-16 2005-08-25 Canon Inc シート給送装置および画像形成装置
JP4600205B2 (ja) * 2005-08-17 2010-12-15 セイコーエプソン株式会社 用紙カセット及び情報処理装置
JP2007176608A (ja) * 2005-12-26 2007-07-12 Canon Inc シート給送装置及び画像形成装置

Also Published As

Publication number Publication date
ES2370367T3 (es) 2011-12-14
EP2202184A1 (fr) 2010-06-30
ATE517835T1 (de) 2011-08-15

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