EP3466703B1 - Procédé d'impression en duplex - Google Patents

Procédé d'impression en duplex Download PDF

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Publication number
EP3466703B1
EP3466703B1 EP18197575.6A EP18197575A EP3466703B1 EP 3466703 B1 EP3466703 B1 EP 3466703B1 EP 18197575 A EP18197575 A EP 18197575A EP 3466703 B1 EP3466703 B1 EP 3466703B1
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EP
European Patent Office
Prior art keywords
sheet
sheets
printed
likelihood
image
Prior art date
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Active
Application number
EP18197575.6A
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German (de)
English (en)
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EP3466703A1 (fr
Inventor
Ernest J.J. Clevers
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Canon Production Printing Holding BV
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Canon Production Printing Holding BV
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Publication of EP3466703A1 publication Critical patent/EP3466703A1/fr
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Publication of EP3466703B1 publication Critical patent/EP3466703B1/fr
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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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0095—Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end
    • 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
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/0009—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material
    • B41J13/0018—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material in the sheet input section of automatic paper handling systems
    • 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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/60—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/23—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/55—Self-diagnostics; Malfunction or lifetime display
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5029—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the copy material characteristics, e.g. weight, thickness

Definitions

  • the invention relates to a method of duplex printing on a printing system having a print station and a duplex path that is capable of accommodating a plurality of media sheets at a time, the method comprising a step of checking the sheets for possible damage before they are fed to the print station.
  • a printing method of this type has been disclosed in WO 2016/177676 A1 .
  • this method when it is found in the checking step that a sheet is damaged, meaning for example that the sheet is warped to such an extent that the print quality would be compromised or the sheet would collide with a print head in the print station, the defective sheet is discarded and the allocation of images to be printed to the subsequent sheets is re-scheduled such that the print order is preserved. In this way, it can in many cases be avoided that the print process must be aborted.
  • the scheduling process may be subject to certain constraints, concerning for example the selection of media types, which may not always be complied with or would lead to losses in productivity or a waste of material because, still, a relatively large number of sheets has to be discarded, especially when the duplex path is capable of accommodating a large number of sheets.
  • US 5 905 520 A describes a printing system wherein, in case of a paper jam, multiple pages are reprinted and the operator has to manually check for redundant pages and remove the same.
  • the method according to the invention is characterized by the steps of:
  • the treatments applied to the media sheets in the process of printing a first image on the first side of the sheet may sometimes lead to a deformation of the media sheet.
  • the media sheets are wetted when liquid ink is applied and are then subjected to heat or radiation in order to cure the ink and to dry the sheet. These treatments may cause the sheet to warp or deform, so that the height of the sheet becomes uneven.
  • the height variations of the sheet may be too large in view of the narrow gap which the print head forms with the media sheets, so that the print quality is compromised or the sheet even collides with the print head.
  • the likelihood that a sheet gets damaged in the way described above is usually not the same for all sheets of the document. Instead, even when all media sheets are of the same media type, the likelihood of damage may depend upon the image content to be printed thereon, because the image content determines the amount of liquid ink to be applied to the sheet as well as the distribution of the ink.
  • the likelihood of damage is estimated in advance, so that suitable counter-measured may be taken individually for each sheet in the set.
  • the sheets for which the likelihood of damage is high receive a special treatment in that, each time when a sheet with that image content has to be printed, the printer is controlled to print at least one redundant copy of the sheet. That is, instead of printing the image content just on one sheet, the same image content is printed onto two or more subsequent sheets.
  • the sheets are conveyed along the duplex path and are fed to the print station or to another print station for forming the second image on the back side, it is checked as usual whether any of the sheets has become damaged. If that is not the case, the redundant copies may be discarded. If it turns out, however, that one sheet has become damaged, there will be a second copy with the same image content in reserve, so that the damaged sheet may be discarded and printing may continue with the non-damaged sheet.
  • the method according to the invention incurs itself a certain waste of material because all the redundant copies are eventually discarded.
  • the step (b) of deciding whether or not a redundant copy shall be made will preferably involve a comparison of the likelihood of damage to the number of sheets that will have to be discarded whenever such a damage occurs.
  • the likelihood P that a sheet becomes damaged in the process of printing the first image on the front side will typically depend upon several factors, including for example the amount of ink to be applied, the distribution of ink, the media type, the temperature to which the sheet is exposed during or after printing, the humidity content of the sheet, ambient air humidity, and the like.
  • a database stores a likelihood value for all realistic combinations of the above factors and the step (a) of determining the likelihood P comprises identifying the parameters that apply to the particular sheet and then look-up the likelihood P in the database.
  • the database may be established and updated on the basis of empirical data.
  • the method may employ a self-learning algorithm for counting, separately for each of the sheets that are distinguished from one another by their intended image contents, the total number T of printed sheets as well as the number D of sheets which have become damaged. The likelihood of damage will then be approximated by the quotient D/T of these numbers.
  • a printing system that is described here as a representative example comprises an input section 10, a main body 12, and an output section 14.
  • the main body 12 comprises a print station 16 disposed at a sheet transport path 18, an electronic controller 20 and a user interface 22.
  • the controller 20 may be formed by a computer, a server or a workstation and is connected to all the functional components of the printing system for controlling the same and is further connected to the user interface 22 and to a network 24 via which the controller may communicate with a remote workstation 26 of a user or operator.
  • the controller 22 may also be installed outside of the main body 12 for controlling the various system components via the network 24.
  • the hardware and/or the software of the controller 20 includes among others a print job receiving section 28, a scheduler 30, a feed control section 32, a print control section 34, an output control section 36, and a sheet manager 38.
  • the print job receiving section 28 is arranged to receive, e.g. via the network 24, print jobs each of which includes image data for one or more pages to be printed as well as various job settings.
  • the image data may also be received from a local scanner whereas the job settings are input at the user interface 22.
  • the job settings include among others instructions that specify for each image to be printed the properties or type of a recording medium on which the image shall be printed.
  • the input section 10 includes a plurality of holders 40 each of which accommodates a supply, e.g. a stack of media sheets of a certain media type.
  • the media types in the different holders 40 may differ in sheet thickness, sheet material, surface properties of the sheets and the like.
  • the input section 10 further includes a feed mechanism 42 arranged to separate individual sheets from a selected one of the holders 40 and to supply them one by one into the sheet transport path 18 under the control of the feed control section 32.
  • the scheduler 30 determines a sequence in which the images of this print job shall be printed.
  • image shall designate a page size image that is to be printed onto one side of a recording sheet.
  • the scheduler 30 further has access to a database that stores the media types and properties of the sheets accommodated in the various holders 40. Based on the job settings that concern the media properties, the scheduler 30 selects the holders 40 from which the sheets with the desired properties are to be taken and determines a sequence in which the sheets of the different media types are to be fed into the sheet transport path 18 such that the sequence of sheets matches the sequence of images to be printed.
  • the feed control section 32 controls the feed mechanism 42 to supply the sheets in the sequence as scheduled into the sheet transport path 18, and the print control section 34 controls the print station 16 so as to print a corresponding image on the top side of each sheet.
  • the output section 14 has a plurality of holders 44 on which the sheets may be stacked after they have left the print station 16.
  • a stack which may for example comprise a set of sheets forming a complete copy of a multi page document
  • the holder 44 will forward the stack onto an associated output tray 46.
  • the completed stacks may also be forwarded to a finisher (not shown) for performing finishing operation such as stapling, punching and the like.
  • the output section 14 further includes a switch 48 which is controlled by the output control section 36 for directing each sheet to a designated one of the holders 44.
  • the main body 12 of the printing section includes a duplex path 50 which branches off from the sheet transport path 18 downstream of the print station 16, reverses the orientation of the sheets in a sheet reversing mechanism 52 and then returns the sheets upside down to the entry side of the sheet transport path 18.
  • the print station 16 includes as print engine an ink jet print head 54 that is disposed above the sheet transport path 18 and is adjustable in height by means of a height adjustment mechanism 56.
  • the height of the print head 54 is adjusted such that a nozzle face 58 at the bottom side of the print head forms only a very narrow gap with a top surface of a sheet 60 that is being conveyed past the print head. In this way, it will be assured that, for each individual sheet, the ink jet print process will be performed with an optimal nozzle-to-sheet distance.
  • a sensor 62 for monitoring the quality of the sheets is disposed at the sheet transport path 18 upstream of the print station 16.
  • the sensor 62 may for example be a 3D laser scanner that scans the entire surface of the sheet in order to capture a surface relief. An example is described in US 2016103634 A1 .
  • the relief data are transmitted to the sheet manager 38 in the controller 20, where they are processed further to decide whether the quality of the sheet is acceptable or not. In this specification, a sheet will be designated as "damaged" if the quality detected by the sensor 62 is not acceptable.
  • the sensor 62 may also detect other quality criteria relating to, for example, alignment errors or skew errors of the sheets.
  • the sheet manager 38 controls a switch 64 in the sheet transport path 18 in order to excise this sheet from the scheduled sequence and to divert it into a discharge path 66 via which the sheet is discharged into a discharge bin (not shown). In this way, the defective sheet will be skipped in the print process. However, the image that was designated for being printed onto the discarded sheet must nevertheless be printed. Normally, this situation would lead to an abortion of the print process, with the result that the entire print process, including the scheduling process, has to be started anew, and all the sheets that had been present already duplex path 50 would have to be discarded.
  • Fig. 1 is only a schematic sketch and that, in practice, the number of sheets that can be accommodated in the duplex path 50 can be considerably large.
  • the duplex path 50 may be arranged to accommodate as many as 40 sheets.
  • Fig. 2 is a diagram of the duplex path 50 which, in this example, has the capacity to accommodate ten sheets at a time. It is further assumed in this example that the print job consists of printing a large number of copies of an 8 sheet set, each set having sheets 1-8. Further, the scheduler 30 has determined that, in case of sheets 2 and 3, redundant copies 2a and 3a shall be printed immediately after the sheet 2 and 3, respectively.
  • Fig. 3 shows the duplex path 50 in a state three print cycles later.
  • Sheet 1 is completed, i.e., it has received a second image on the back side and is being conveyed to the output section 14.
  • the defective sheet 2 is in the discharge path 66, and the print head 54 is busy with printing an image on the back side of sheet 2a which will take the place of sheet 2 in the output stack.
  • the damage detected for sheet 2 had the effect that not only sheet 2 would have to be discarded but all subsequent sheets in the duplex path 50, i.e. sheets 3, 3a and 4 to 8, would have to be discarded as well and only after the duplex path 50 had been emptied completely would it have been possible to resume the print process which feeding a new blank sheet, which will become the new sheet 2 and printing again the first image on the front side and then printing again the first images of the following sheets until the duplex path 50 is filled again. Consequently, the damage detected for sheet 2 would cause a considerable waste, i.e., a waste of 9 sheets in this example.
  • the purpose of scheduling the redundant sheet 2a is to avoid this waste.
  • the sheet 2a On its front side, the sheet 2a will receive the same image as has been printed on the front side of sheet 2, and if the sheets are of different media types, the scheduler 30 will also command the feed control section 32 to assure that sheet 2a is of the same media type as sheet 2, so that sheet 2a can substitute sheet 2 in any respect.
  • printing the redundant sheet a also produces a certain amount of waste, namely one sheet per set.
  • the criterion for scheduling a redundant copy of the given sheet is: P > 1 / W
  • the numerator n on the right side is due to the fact that, even when no damage occurs, n sheets would be wasted in each set.
  • the set to be printed had 9 pages rather than 8, then the next duplex cycle (i.e. the cycle in which the duplex path 50 is filled and emptied again) would start with the last sheet 9 of the present set and the next set sheet 1 would be shifted backwards by one step, and this would result in a different (smaller) number W.
  • the duplex print mode is a batch mode in which a batch of (8) sheets receive images on both sides before the next batch is processed.
  • the invention is not limited to this mode.
  • the duplex mode could also be an interleaved mode in which, in the stream of sheets fed to the print station 16, blank sheets are interleaved with sheets from the duplex path 50.
  • duplex path does not have to be a loop. If separate print stations are used for printing the front side and back side images, then the duplex path would simply be a path leading from the first print station to the second.
  • the likelihood P of damage for a given sheet depends upon a number of factors such as the media type (thickness, dimensions and material of the sheet), humidity and temperature of the sheet, air humidity and temperature in the environment and during a curing or drying treatment of the sheet, chemical composition of the ink being used, the amount of ink applied on the first side of the image, the distribution of ink, and the like.
  • the latter factors, in particular the amount and distribution of ink depend upon the image content of the image to be printed on the front side of the sheet. Consequently, the likelihood P can vary significantly from sheet to sheet and must therefore be determined independently for each sheet in the set.
  • the controller 20 can access a database 70 via the network 24, and the database 70 stores likelihood values P for all combinations of the above-mentioned factors that may occur in practice.
  • the likelihood may be a linear or non-linear function of that amount.
  • the images to be printed will be classified in one of a number of pre-defined classes (such as: ink concentrated on a few lines or dots in the image; ink fills a large solid area near the center of the image; ink fills a large solid area near a corner of the sheet; and the like) and the likelihood will depend upon the class into which the image has been classified.
  • FIG. 4 An example of a method of scheduling the images to be printed in accordance with the principles described above has been shown in Fig. 4 .
  • step S1 a media type is determined for the next sheet to be fed from the input section 10 into the sheet transport path 18, typically by reference to corresponding instructions in the print job specifications.
  • the image content of the image to be printed on the front side of the sheet is analysed in step S2.
  • the purpose of this analysis is to determine factors such as the amount of ink and the ink distribution, that will influence the likelihood P, together with other factors such as the media type.
  • step S3 the likelihood P is determined as a function P(x1, ..., xj) of the relevant factors x1, ..., xj, by reference to the database 70, said factors including among others the factors determined in steps S1 and S2.
  • step S5 it is checked whether n is larger than zero, i.e. if at least one redundant copy shall be scheduled. In that case, the next n sheets are scheduled to have the same media type and the same image content (on the first side) as the sheet presently under inspection. These sheets will then become redundant copies which may be used for replacing the original sheet in case of damage.
  • this sheet or copy will receive the image on the back side of the sheet and will be fed to the output section, whereas all subsequent redundant copies, if any, will be discarded.
  • steps S1 - S5 should be performed no later than the time when the next subsequent sheet, i.e. the successor of the sheet in consideration, has to be fed from the input section 10, so that it is still possible to choose the media type. If all sheets are of the same media type, it is sufficient when the steps S1 - S5 are completed at the time when the next subsequent sheet is fed to the print station 56.
  • Fig. 5 illustrates a modified embodiment in which the likelihood of damage is determined only in the course of the print process in which several copies of multi-sheet set are printed.
  • the print process starts with step S10.
  • Step S11 the number W is calculated for each sheet in the set or, more precisely, for each sheet in each copy of the set, because the number W varies with the position of the sheet in the duplex path 50, which position may be different for different copies of the set.
  • the total number T of prints and the number D of damaged sheets are counted separately for each sheet in the set in step S12.
  • the number T is the number of print operations in which an image is printed on the first side of the sheet. If no damage occurs, T is equal to the number of copies of the set that have been printed.
  • the number D related to the first sheet in the set is the number of instances where the sensor 62 finds this sheet to be damaged.
  • step S13 it is checked for each sheet in the set whether the counts obtained in step S12 for that sheet fulfil the criterion D ⁇ W > T.
  • the quotient D/T may not be a good approximation for the likelihood P, because the statistical fluctuations are still large. It may therefore be considered to perform the step S13 only after a certain time, when the count T has reached a certain value. In general, however, it will do no harm if the step S13 is performed from the very beginning. If a damage happens to occur early, although the likelihood P is small, step 13 will have the effect that a redundant copy is scheduled, but when it turns out that no further damage occurs for that sheet, the ratio D/T will drop from set to set and, eventually, no redundant copy will be scheduled any more, so that the error is corrected automatically. Thus, the method shown in Fig. 5 assures that the strategy of printing redundant copies is automatically adapted to the actual frequency of damages.

Claims (10)

  1. Procédé d'impression sur un système d'impression ayant une station d'impression (16) et un trajet duplex (50) qui est capable de recevoir une pluralité de feuilles de support (60) à la fois, le procédé comprenant une étape de vérification des feuilles quant à un éventuel dommage avant d'être alimentées à la station d'impression (16), caractérisé par les étapes de :
    (a) détermination, pour chaque feuille duplex à imprimer, d'une probabilité P que la feuille sera endommagée dans un processus d'impression d'une image sur un premier côté de la feuille, de sorte que la feuille devra être jetée ;
    (b) au moment où ou avant le moment où la première image est imprimée, décision, sur la base de la probabilité P déterminée, d'imprimer ou non au moins une copie redondante (2a, 3a) de la feuille ; et
    (c) lorsqu'au moins une copie redondante a été imprimée, et avant qu'une deuxième image est imprimée sur un deuxième côté d'une des feuilles, vérification si la feuille et ses copies redondantes comprennent au moins une feuille non endommagée, et, si tel est le cas, sélection de cette feuille pour la suite du traitement et rejet de toutes les autres copies.
  2. Procédé de planification d'un processus d'impression sur un système d'impression ayant une station d'impression (16), un trajet duplex (50) qui est capable de recevoir une pluralité de feuilles de support (60) à la fois, et un capteur (62) agencé pour vérifier les feuilles quant à un éventuel dommage avant d'être alimentées à la station d'impression (16), caractérisé par les étapes de :
    (a) détermination, pour chaque feuille duplex à imprimer, d'une probabilité P que la feuille sera endommagée dans un processus d'impression d'une image sur un premier côté de la feuille, de sorte que la feuille devra être jetée ; et
    (b) au moment où ou avant le moment où la première image est imprimée, décision, sur la base de la probabilité P déterminée, de planifier ou non au moins une copie redondante (2a, 3a) de la feuille.
  3. Procédé selon la revendication 1 ou 2, dans lequel l'étape (b) inclut la comparaison de la probabilité P avec un nombre W de feuilles dans le trajet duplex (50) qui devra être jetée en cas de dommage de la présente feuille.
  4. Procédé selon l'une quelconque des revendications précédentes, dans lequel les feuilles de support (60) sont de différents types de support, et dans lequel les étapes (a) et (b) pour une feuille donnée sont réalisées à la fois avant que le type de support de la prochaine feuille doit être décidé.
  5. Procédé selon la revendication 4, dans lequel, dans l'étape (a), la probabilité P est déterminée en fonction du type de support de la feuille.
  6. Procédé selon l'une quelconque des revendications précédentes, dans lequel, dans l'étape (a), la probabilité P est déterminée en fonction d'un contenu d'image d'une image à imprimer sur le premier côté de la feuille.
  7. Procédé selon l'une quelconque des revendications précédentes, dans lequel, dans l'étape (a), la probabilité (P) est déterminée en référence à une base de données (70).
  8. Procédé selon l'une quelconque des revendications 1 à 6, dans lequel, dans l'étape (a), la probabilité P est déterminée en fonction d'un rapport D/T entre un compte D de feuilles endommagées et un compte T d'un nombre total de feuilles sur lesquelles une image a été imprimée sur le premier côté, les comptes D et T étant pris séparément pour chaque feuille dans l'ensemble à imprimer.
  9. Système d'impression comprenant une station d'impression (16), un trajet duplex (50) qui est capable de recevoir une pluralité de feuilles de support (60) à la fois, et un dispositif de commande (20), caractérisé en ce que le dispositif de commande (20) est configuré pour réaliser un procédé selon l'une quelconque des revendications précédentes.
  10. Produit logiciel comprenant un code de programme sur un support non transitoire lisible sur ordinateur, le code de programme, lorsque chargé dans un dispositif de commande (20) d'un système d'impression selon la revendication 7, amène le dispositif de commande (20) à réaliser un procédé selon l'une quelconque des revendications 1 à 8.
EP18197575.6A 2017-10-03 2018-09-28 Procédé d'impression en duplex Active EP3466703B1 (fr)

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US20220219466A1 (en) * 2019-09-09 2022-07-14 Hewlett-Packard Development Company, L.P. Manual media sheet insertion at duplex reversal point of duplex printing path

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JP3413434B2 (ja) 1995-01-13 2003-06-03 富士ゼロックス株式会社 用紙処理装置および用紙処理機能をもつ印刷装置
EP3007133B1 (fr) * 2014-10-08 2018-06-20 OCE-Technologies B.V. Appareil et procédé de détection de défaut dans un système d'impression
US9465563B2 (en) * 2014-10-08 2016-10-11 Oce-Technologies B.V. Method for defect detection in a printing system and printing system
JP2018515362A (ja) 2015-05-07 2018-06-14 オセ−テクノロジーズ・ベー・ヴエーＯｃｅ’−Ｎｅｄｅｒｌａｎｄ Ｂｅｓｌｏｔｅｎ Ｖｅｎｎｏｏｔｓｈａｐ 印刷システム

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