WO2015187125A1 - Imprimante - Google Patents

Imprimante Download PDF

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Publication number
WO2015187125A1
WO2015187125A1 PCT/US2014/040563 US2014040563W WO2015187125A1 WO 2015187125 A1 WO2015187125 A1 WO 2015187125A1 US 2014040563 W US2014040563 W US 2014040563W WO 2015187125 A1 WO2015187125 A1 WO 2015187125A1
Authority
WO
WIPO (PCT)
Prior art keywords
media
tray
proximity sensor
printer
signal
Prior art date
Application number
PCT/US2014/040563
Other languages
English (en)
Inventor
Tong Nam Samuel Low
Yu Zhao
Xiaoxi Huang
Bee Loon ENG
Original Assignee
Hewlett-Packard Development Company, L.P.
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 Hewlett-Packard Development Company, L.P. filed Critical Hewlett-Packard Development Company, L.P.
Priority to PCT/US2014/040563 priority Critical patent/WO2015187125A1/fr
Publication of WO2015187125A1 publication Critical patent/WO2015187125A1/fr

Links

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
    • B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of 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
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/12—Width
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/22—Distance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/60—Optical characteristics, e.g. colour, light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors
    • B65H2553/414—Photoelectric detectors involving receptor receiving light reflected by a reflecting surface and emitted by a separate emitter

Definitions

  • Printers are equipped with media trays for holding media stacks. Some types of media trays have adjustable walls to position media of different sizes in a ready-for-pick-up position in the tray.
  • a media size is automatically or manually selected, typically a default media size. In case of doubt a user can open the media tray to see if media of a desired size is present in the printer, before selecting or confirming the media size.
  • FIG. 1 illustrates a diagram of an example of a printer
  • FIG. 2 illustrates a diagram of another example of a printer
  • Fig. 3 illustrates an example of a simplified look-up table that associates a media width with a media size
  • FIG. 4 illustrates a top view of an example of a media tray
  • FIG. 5 illustrates a perspective view on another example of a media tray with a media engaging structure when the tray is filled
  • Fig. 6 illustrates a perspective view of the example tray and media engaging structure of Fig. 5 when the tray is empty;
  • Fig. 7 illustrates an example of a graph plotting a proximity sensor voltage output (vertical) against time (horizontal);
  • Fig. 8 illustrates a flow chart of an example method of detecting media size, media presence and a proper tray insertion.
  • Fig. 1 illustrates a diagram of an example of a printer 1.
  • the printer 1 includes a media tray 3 for holding a media stack 5 in a printer 1.
  • the printer 1 may have one tray 3 or multiple trays 3.
  • the media stack 5 consists of stacked paper sheets.
  • the media tray 3 includes a bottom support 7 for supporting the media stack 5.
  • the media tray 3 includes at least one adjustable wall 9 that protrudes from the bottom support 7, at approximately straight angles with the bottom support, in an upright position.
  • the bottom support 7 includes linear guides to guide the adjustable wall 9 towards a media stack 5 in the tray 3.
  • the adjustable walls 9 can be slit over the bottom guides towards and away from the media stack 5.
  • the printer 1 may further include a pick-up mechanism to pick up media from the stack for printing.
  • the adjustable walls 9 facilitate that the stacked media is positioned for pick up by the pick-up mechanism.
  • the adjustable wall 9 engages a side of the media stack 5 so that the edges of the sheets are approximately aligned.
  • a position of the adjustable wall 9 can be associated with a media width.
  • a media width can be associated with a media size.
  • the printer 1 includes a proximity sensor 11.
  • the proximity sensor 11 may include an optical signal emitter and an optical signal receiver.
  • the proximity sensor 11 is located next to the media tray 3 and directed towards an upright, outer face 13 of the adjustable wall 9.
  • the outer face 13 of the adjustable wall 9 is at approximately straight angles with the support bottom 7.
  • the proximity sensor 11 is to emit a signal directly onto the outer face 13 of the adjustable wall 9 and sense a signal that is reflected by the adjustable wall 9.
  • the adjustable wall 9 may contain a highly reflective surface. When the adjustable wall 9 is distanced from the proximity sensor 11, a reflected light may decrease in density and hence the received reflected signal may be weaker, as compared to the adjustable wall 9 being positioned nearby the sensor 11.
  • a height of the proximity sensor signal output can be associated with a position of the adjustable wall 9.
  • the position of the adjustable wall 9 can be associated with a media size.
  • the proximity sensor 11 provides for a relatively cheap and simple solution to detect media sizes in printer media trays.
  • Proximity sensors are widely used in other electronic devices.
  • the proximity sensor 11 can be aimed at the outer face 13 of the adjustable wall 9, which is a convenient proximity sensing target Hence, it is facilitated that a printer can readily sense a media size and display the sensed media size to a user, without the user needing to check what media size is in the tray.
  • This may also facilitate that users can view a media size of media in a tray in a printer through a mobile and/or handheld device, using a suitable wireless connection with the printer.
  • Fig. 2 illustrates another example of a printer 101
  • the printer 101 includes a media tray 103 supporting a media stack 105.
  • the media tray 103 includes at least one adjustable wall to be moved over a linear guide towards the media stack 105.
  • the printer 101 includes a proximity sensor module 119, including a proximity sensor 111 disposed on a printed circuit board 117.
  • a proximity sensor module 119 including a proximity sensor 111 disposed on a printed circuit board 117.
  • a proximity sensor module 119 including a proximity sensor 111 disposed on a printed circuit board 117.
  • a single layer printed circuit board 117 with one, two, three or four proximity sensors 111 can be used.
  • a single proximity sensor module 119 with one proximity sensor 111 is provided for each media tray 103.
  • the proximity sensor module 119 can be a standard, cost efficient proximity sensor module that is widely used in electronic devices such as handheld
  • each proximity sensor 111 includes an emitter and a separate receiver, or an integrated emitter and receiver.
  • the emitter includes an infrared (IR) proximity sensor, for example a light emitting diode (LED) and the receiver may include a suitable photodiode that is optimized for IR light intensity reading.
  • the proximity sensor module 119 is to sense at low power, for example using interrupt duty cycles of
  • a LED density of less than 500mA, such as 100 m A and/or 200mA may be used, in an example the proximity sensor module 119 is to continuously monitor the proximity of the adjustable wall 109, for example at the mentioned low power settings, for example when the printer 101 is switched on in one of its default operational modes.
  • the printer 101 includes a control circuit 121.
  • the control circuit 121 includes a digital application-specific integrated circuit (dASIC), including a memory 123 and a processor 125.
  • the memory 123 is a non-transient nonvolatile computer readable memory.
  • the control circuit 121 is to receive and interpret signals received from the proximity sensor module 119.
  • the control circuit 121 is to associate the received proximity sensor signals with a media size, on the basis of look-up tables stored in the memory.
  • a media width can be determined based on sensed signal strength. For example a relatively high signal strength corresponds to a relatively close proximity of the adjustable wall 109, which corresponds to a relatively large media width.
  • a media width can be associated with a standard media size, using a stored look-up table such as illustrated in an example in Fig. 3.
  • a stored look-up table such as illustrated in an example in Fig. 3.
  • each row plots a media width and a corresponding standard media sizes.
  • certain signal output ranges are directly associated with certain predetermined media sizes by the control circuit 121.
  • the control circuit 121 communicates with the proximity sensor 119 through an inter-integrated circuit (I2C) 129.
  • the I2C 129 may be part of the proximity sensor module 119 or the control circuit 121.
  • the I2C 129 interfaces with the proximity sensor 111 and the control circuit 121 thereby facilitating compatibility of the proximity sensor 111 with the printer control circuit 121.
  • the I2C may facilitate that a proximity sensor 111 can be readily connected to most ASIC types of printers.
  • the I2C 129 may be a standard, widely available component, allowing for cost efficient integration of the proximity sensor 111 in the printer.
  • Fig. 4 illustrates an example of a diagram of a media tray 203 and a proximity sensor module 219, in a top view.
  • the media tray 203 includes adjustable walls 209A, 209B, 209C that can be linearly translated to correctly position the media or media stack 205 in the tray 203 for pick-up and printing.
  • the tray 203 includes a bottom support surface 207.
  • the bottom support surface 207 supports the media stack 205.
  • the bottom support surface 207 includes linear guides 231 A, 231 B to guide the adjustable walls 209 towards or away from a media stack 205.
  • Transmission components can be connected to the adjustable walls 209A, 209B to allow for mirror-symmetrically movement of the adjustable walls 209A, 209B by moving only one of the wails 209A, 209B, and to position the media stack 205 in a middle region of the tray 203.
  • the tray 203 may be of the type that can be completely removed from the printer to fill it with media and place it back into the printer for media pick-up.
  • At least one of the adjustable walls 209A includes a reflective surface 235.
  • the reflective surface 235 is an upright wall section having a high light reflectance value, for example by having a light-colored, white or near-white color.
  • the reflective surface 235 is integral to the adjustable wall 209A or it is adhered to the adjustable wall 209A in the form of a reflective patch, in one example the reflective surface 235 is white.
  • the reflective surface 235 may have a light reflectance value of at least 60%, at least 70%, at least 80%, at least 85% or at least 90%.
  • the reflective surface 235 is disposed opposite to the proximity sensor module 219.
  • the proximity sensor module 219 includes a PCB 217, and a proximity sensor 211A, 211B on the PCB 217.
  • the proximity sensor module 219 may be mounted to a frame or housing of the printer, next to the tray 203.
  • the proximity sensor 211 A, 211B includes a proximity sensor emitter 211A and a proximity sensor receiver 211B to reflect optical signals that are emitted by the emitter 211A. The optical signals are reflected towards the receiver 211 B.
  • the emitter 211 A includes a LED and the receiver 211 B includes a photodiode.
  • the tray 203 has fixed tray walls 239.
  • the fixed tray walls 239 may protrude upwards from the bottom support 207 to form side walls of the tray 203.
  • One of the fixed tray walls 239 that is disposed next to the proximity module 219 includes a window 241 between the proximity module 219 and the reflective surface 235 to allow for transmitting the emitted and reflected proximity sensor signals to the reflective surface 235 and proximity sensor receiver 211 B, respectively, at least when the tray 203 is fully inserted.
  • the proximity sensor module 219 is mounted to the printer housing or frame, opposite to the window 241 when the tray 203 is fully inserted.
  • the window 241 is disposed in a proximity sensor signal transmission path 245, that is, between the proximity sensor module 219 and the reflective surface 235, only when the tray 203 is properly inserted.
  • the proximity sensor module 219 may not be positioned opposite to the window 241 when the tray 203 is not completely inserted.
  • the proximity sensor signal will not be reflected by the reflective surface 235.
  • the proximity sensor signal will be reflected by opaque parts of the fixed tray wall 239, when the tray 203 is not completely inserted, or by an opposite inner printer wall or component, when the tray 203 has been taken out.
  • the fixed tray wall 239 has a low light reflectance value.
  • the fixed media tray wall 239 can have a black or near-black color, or have a light reflectance value of less than 30%, less than 25% or less than 20%.
  • the fixed media tray wall 239 includes a surface having a light reflectance value that is at least approximately 30% below the light reflectance value of the reflective surface 235 of the adjustable wall 209.
  • a surface region having a low light reflectance value can be provided on the fixed wall 239 directly around the window 241 to aid in detecting tray insertion and tray removal. When the proximity sensor output signal is low, this may indicate that the media tray 203 has been removed, or that it is not completely inserted or not correctly inserted.
  • Fig. 5 illustrates an example of a media tray 303, separate from a printer.
  • the media tray 303 supports a media stack 305.
  • the media tray 303 has fixed walls 339 extending around the media stack 305. (Between the media stack 305 and the fixed tray walls 339, at two sides of the media stack 305, adjustable walls 309 are provided to properly position the media stack 305 in the tray 303.
  • One of the fixed walls 339 includes a window 341 to allow transmission of an optical proximity sensor signal towards a reflective surface 335 on the adjustable wall 309.
  • a second reflective surface 332 having a high light reflectance value is provided on the fixed wall 339.
  • the second reflective surface 332 is a white, near-white or mirror patch that has a higher light reflectance value than the first reflective surface 335 of the adjustable wall 309.
  • the second reflective surface 332 has a light reflectance value of at least at least 70%, at least 80%, at least 90% or at least 95%.
  • the second reflective surface 332 can be provided next to the window 341 , between the window 341 and a front 338 of the tray 303, the front 338 being the defined by the portion of the tray 303 that is first inserted into the printer.
  • a short, saturated proximity sensor signal is received by the control circuit due to a relatively high reflection of the second reflective surface 332.
  • the rest of the fixed tray wall 339 may be of low light reflectance value to allow for better detection when the tray 303 is removed or not completely inserted.
  • a short high signal followed by a longer low signal may indicate a partial or complete tray removal.
  • a longer low signal output followed by a short high signal output may indicate a tray insertion.
  • the proximity sensor can be used to detect a presence of media in the tray 303.
  • a media engaging structure 350 is provided.
  • the media engaging structure 350 can be mounted to the printer, which is not shown, or to the tray 303.
  • the media engaging structure 350 includes a media engaging end 352. In a state wherein media is positioned in the tray 303 (Fig. 5), the media engaging end 352 rests on top of the media stack 305.
  • the media engaging structure 350 further includes a cover 354, at a distance from the media engaging end 352, for example at an opposite end of the media engaging structure 350.
  • the media engaging structure 350 includes a frame 356 between the media engaging end 352 and the cover 354.
  • the window 341 is open to allow media size detection through the proximity sensor.
  • the cover 354 is to cover the window 341 when the tray is empty, thereby blocking the proximity sensor signal to the reflective surface 335 on the adjustable wall 309.
  • Fig. 6 illustrates the example tray 303 and media engaging structure 350 of Fig. 5 in a state wherein the tray 303 is empty.
  • the tray 303 includes a bottom support 307.
  • the bottom support 307 is biased upwards to lift media upwards towards a media pick-up mechanism.
  • the bottom support 307 includes a plate with a slot 358.
  • the slot 358 is to receive the media engaging end 352 so that the media engaging end 352 sticks through the slot 358, at least partly, when the tray 303 is empty.
  • the media engaging end 352 can have a flag or narrow finger shape to fall through the slot 358.
  • the media engaging structure 350 is to translate or pivot, or both, to allow the media engaging end 352 to move downwards into the slot 358 when the tray 303 is empty.
  • the frame 356 includes an axle 360 about which the media engaging structure 350 pivots.
  • the media engaging structure 350 is biased so that the media engaging end 352 pivots downwards into the slot 358 after a final sheet has been picked up by the printer.
  • the media engaging structure 350 may include a resilient element such as a spiraled spring or leaf spring.
  • the cover 354 may have a low light reflectance value, for example of less than 30%, less than 25%, less than 20% or less than 15%.
  • the cover 354 or the media engaging structure 350 has a black or near-black color.
  • Fig. 7 illustrates an example graph of a proximity sensor output on a vertical axis, plotted against time on a horizontal axis.
  • a first graph portion 364 is indicated with dotted lines.
  • the signal of the first graph portion 364 starts with a continuous high signal 364 A.
  • the continuous high signal 364 corresponds to a reflectance by the first reflective surface on the adjustable wall, for example the reflective surface 235 of Fig. 2.
  • a control circuit may associate the continuous Ngh signal output 364A with a filled media tray in the printer and with a certain media size. Then, in one example, the first graph portion 364 exhibits a signal peak 364C that peaks above the continuous high signal.
  • the signal peak 364C can be associated with the signal being reflected by a second reflective surface on the fixed wall, for example the second reflectance surface 332 of Fig. 5.
  • the reflectance of the second reflective surface on the fixed wall is higher than the reflectance of the first reflective surface on the adjustable wall.
  • a control circuit can associate the peak 364C followed by a drop of the signal strength with a tray removal event. Then, the signal output drops down to a continuous low output 364 ⁇ .
  • a control circuit can associate the low signal output 364B with a removed media tray. In one example, the continuous high output 364A drops directly to a continuous low output 364B and no peak 364C is exhibited. In such example, a control circuit can associate the continuous low output 364B with an emptied tray.
  • a second graph portion 366 consists of the continuously low signal output.
  • a third graph portion 368 plots an increase of signal output, towards a second peak 368A, and from there to a second continuous high signal output 368B.
  • a control circuit can associate the second peak 368A after a continuous low output with a tray being fully inserted in the printer.
  • the signal peak is triggered by the second reflective surface 332 passing the proximity sensor.
  • the second continuous high signal output 366B is based on the continuous reflectance of the first reflective surface 335 of the adjustable wall 309.
  • a control circuit can associate such continuous high signal output 368B, after a continuous low output and a peak 368A, with an insertion of a filled tray 303.
  • a control circuit can associate a first signal output range 370 with a filed media tray, while a second signal output range 372 may be associated with one or both of (i) the tray being at least partly taken out and (ii) the tray being empty.
  • the signal peaks 364C and 368A may be in a third, higher signal range 374.
  • Fig. 8 illustrates a flow chart of an example of a method of detecting (i) a media size, (ii) proper tray insertion, and (iii) media presence in a media tray.
  • the method includes an optical signal being emitted by a proximity sensor through a window in a fixed wall of a media tray onto a reflective surface of the adjustable wall of the media tray (block 400).
  • a high signal reading may confirm a presence of the tray in the printer and media in the tray (block 410).
  • a control circuit is to calculate a media size based on the proximity sensor signal (block 420). At a different point in time, media in the tray may be exhausted or the tray is at least partially taken out of the printer (block 430).
  • a low signal may be output by the proximity sensor (block 440), for example because the emitted light is not reflected by the reflective surface on the adjustable wail, either because the window is out of position (tray removed) or because the window is blocked by a media engaging structure (tray empty).
  • the control circuit detects an empty tray and/or a lack of media (block 450) based on the proximity sensor signal.

Landscapes

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

Abstract

L'invention concerne une imprimante comprenant un plateau de supports comportant une paroi réglable pour venir en prise avec un côté d'une pile de supports et un capteur de proximité disposé sur le côté du plateau de supports pour émettre un signal directement sur la paroi réglable et détecter un signal réfléchi par la paroi réglable.
PCT/US2014/040563 2014-06-02 2014-06-02 Imprimante WO2015187125A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2014/040563 WO2015187125A1 (fr) 2014-06-02 2014-06-02 Imprimante

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2014/040563 WO2015187125A1 (fr) 2014-06-02 2014-06-02 Imprimante

Publications (1)

Publication Number Publication Date
WO2015187125A1 true WO2015187125A1 (fr) 2015-12-10

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ID=54767073

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/040563 WO2015187125A1 (fr) 2014-06-02 2014-06-02 Imprimante

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020256740A1 (fr) * 2019-06-21 2020-12-24 Hewlett-Packard Development Company, L.P. Ensembles capteurs de dimension de support
US11220118B2 (en) 2017-04-21 2022-01-11 Hewlett-Packard Development Company, L.P. Media bin sensors
US11358820B2 (en) 2017-04-21 2022-06-14 Hewlett-Packard Development Company, L.P. Media bin sensors

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5549291A (en) * 1994-12-01 1996-08-27 Xerox Corporation Printer with multiple-sized sheets duplex tray assembly
JP2003182169A (ja) * 2001-12-14 2003-07-03 Funai Electric Co Ltd 印字装置の用紙検出装置
US20040057738A1 (en) * 2001-11-13 2004-03-25 Weaver Jeffrey S. Imaging system having media stack component measuring system
US20070063425A1 (en) * 2005-09-22 2007-03-22 Funai Electric Co., Ltd. Paper feed tray unit for a printer
US20110049785A1 (en) * 2009-09-01 2011-03-03 Kinpo Electronics, Inc. Paper tray of printer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5549291A (en) * 1994-12-01 1996-08-27 Xerox Corporation Printer with multiple-sized sheets duplex tray assembly
US20040057738A1 (en) * 2001-11-13 2004-03-25 Weaver Jeffrey S. Imaging system having media stack component measuring system
JP2003182169A (ja) * 2001-12-14 2003-07-03 Funai Electric Co Ltd 印字装置の用紙検出装置
US20070063425A1 (en) * 2005-09-22 2007-03-22 Funai Electric Co., Ltd. Paper feed tray unit for a printer
US20110049785A1 (en) * 2009-09-01 2011-03-03 Kinpo Electronics, Inc. Paper tray of printer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11220118B2 (en) 2017-04-21 2022-01-11 Hewlett-Packard Development Company, L.P. Media bin sensors
US11358820B2 (en) 2017-04-21 2022-06-14 Hewlett-Packard Development Company, L.P. Media bin sensors
WO2020256740A1 (fr) * 2019-06-21 2020-12-24 Hewlett-Packard Development Company, L.P. Ensembles capteurs de dimension de support

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