EP2496422B1 - System having an output device operating according to the ink particle printing method - Google Patents

Description

The invention relates to a device device having a printing device for the printing medium particle printing method, for example, toner particle printing method, working output device.

Post-toner printing device output devices such as printers, copiers or fax machines are widely used. The toner particles have dimensions in the range of about 5 to 30 microns. They are composed of synthetic resin, pigments, magnetisable metal oxides and auxiliaries. The fine toner particles can partially pass unhindered the filter and protective function of the lung and get into the body. The toner particles can enter the ambient air and be inhaled when using the dispenser.

The object of the present invention is to provide a device which significantly reduces the risk of inhaling pressure medium particles when using output devices operating according to a pressure medium particle method.

WO 89/10180 discloses a device device with an output device operating according to the pressure medium particle printing method, and a fine dust extraction device arranged above the output device.

• dass die Feinstaubabsaugeinrichtung eine über dem Ausgabegerät anordenbare, mit einem Feinstaubfilter ausgestattete Ablufthaube aufweist,
• dass die Ablufthaube einen Lüfter aufweist, der ein Lüfterrad und einen elektrischen Lüftermotor aufweist und in einem als Lüftergehäuse ausgebildeten Abschnitt der Ablufthaube angeordnet ist, und
• dass in der Ablufthaube ein Ionisator angeordnet ist.
• dass die ablufthaube einen Eingangsabschnitt aufweist, der eine Fläche überdeckt, die größer ist als die Grundfläche des Ausgabegerätes.

According to the invention, this object is achieved with the subject matter of claim 1. It is a device device with a pressure medium according to the printing method working output device, such as a printer, copier or fax machine, and a fine dust extraction device arranged above the output device, wherein it is provided that

• the fine dust extraction device has an exhaust air hood which can be arranged above the output device and is equipped with a fine dust filter,
• that the exhaust hood has a fan, which has a fan and an electric fan motor and is arranged in a formed as a fan housing portion of the exhaust hood, and
• in that an ionizer is arranged in the exhaust hood.
• the exhaust air hood has an inlet section which covers an area which is larger than the base area of the output device.

The device device according to the invention is characterized in that it has a Feinstaubabsaugeinrichtung which can be used on various operating according to the pressure medium particle printing process output devices, if necessary, can also be retrofitted. The Feinstaubabsaugeinrichtung may be designed so that it does not require intervention in the output device. It can be provided that the Feinstaubabsaugeinrichtung is used regardless of the type of ventilation of the output device. It may be provided for use on output devices without ventilation or on output devices that suck in room air via a fan opening and dispense over the device distributed openings and / or random column of pressure medium particles contaminated cooling air. Also on output devices that have pressure fan and defined outlet openings for the standing under pressure cooling air, the Feinstaubabsaugeinrichtung invention is used. It may be designed, in contrast to conventional filters that only cover the outlet openings of the output device, that it does not require any changes to the output device and does not hinder the cooling of the output device. The fine dust filter can be considered mechanical Filter be formed of porous filter material. It can be designed as a combination filter with a coarse dust filter.

Furthermore, it can be provided that the fine dust extraction device of the device device also reduces other fine dust components. In addition to printing devices using a printing medium particle printing process, such as laser printers and copiers, cigarette smoke, candles, cooking activities and vacuum cleaners without filters are among the fine dust sources indoors. The 22nd Federal Immission Control Ordinance (BlmSchV) of 11 September 2002 sets limit values for particulate matter, which are specified in the parameter PM ₁₀ (PM for Particulate Matter). The parameter PM ₁₀ is a weighted parameter which takes into account the separation behavior of the upper respiratory tract and accounts for 50% of particles with a diameter of 10 μm. Since 2005, the annual mean value for PM _{10 has been} 40 μg / m ³ . The exhaust hood can be equipped with a fan. The fan can be arranged in a housing of the exhaust hood. But it can also be connected via a pipe or the like to the exhaust hood. The fan may be a fan with an electric drive motor.

It is essential in the case of the fine dust extraction device provided in the device device according to the invention that it has an exhaust air hood arranged above the delivery device, in which components of the fine dust extraction device are arranged. The term exhaust hood is generally understood. It is essential that the exhaust hood has an inlet portion with an opening to receive the exhaust air. It can be provided that the exhaust hood has an input section, downstream of which the fan housing is connected downstream. The fan housing may upstream of a covered by the particulate filter suction and downstream at least one outlet opening. The fan can be arranged in the ventilation housing between the fine dust filter and the outlet opening. The direction of flow of the air taken in by the exhaust air hood is determined by the fan, which draws in the air to be cleaned, so that the flow direction runs from the suction opening of the fan to the outlet opening.

The inlet section may be located upstream of the particulate filter.

The fan housing may have an upstream of the fine dust filter covered intake and upstream at least one outlet opening.

The exhaust hood can have an input section, to which the output device is designed to be completely coverable. The opening cross-section of the exhaust hood may have substantially the same area and / or substantially the same surface contour compared to the layout of the output device. In order to allow a particularly practical access to the output device, it can be advantageously provided that the exhaust hood is mounted so that is lowered in the output mode of the output device to the output device and has raised so far in the idle mode of the output device that the exhaust hood the output device is accessible ,

Furthermore, it can be provided that an upstream of the fine dust filter arranged input section of the exhaust hood is funnel-shaped. The input portion may also be formed non-funnel-shaped, that is straight-walled, for example, as a parallelepiped or pipe socket with a round cross-sectional area without diverging to the opening section. As far as the funnel-shaped design is concerned, it is likewise not restricted to a circular cross-section of the entry section or to a cross-section with a constant geometric shape. It can also be provided, for example, a rectangular cross-section, which decreases in its dimensions in the direction of the fan. It can also be provided that the geometric shape of the cross section, for example, passes from a rectangle into a circle, in particular if the fan housing is a circular-cylindrical body. The rectangular cross-section may be preferred, because it is optimally adapted to the output devices designed predominantly with a rectangular cross-section.

It can further be provided that the ionizer is arranged downstream of the fan. The ionizer is a preferably high-voltage device for ionizing the air purified from the exhaust hood. Due to the ionizer, residual dust particles that are still contained in the purified room air can be bound by liberated ions and deposited on the inner wall of the exhaust hood. Thus, the degree of purity of the filtered room air can be further improved. Further, the ionizer may be provided to neutralize odors. The ionizer generates negatively charged ions (anions), whereas stale ambient air mainly contains positively charged ions (cations). Because pollutants, bacteria and allergens are positively charged, they can combine with the anions and precipitate out of the room air. The anions can continue to trigger chemical reactions that lead to the degradation of odoriferous gases and / or aerosols. The Particulate matter suction can also be used as a room air purifier, preferably in the operating pauses of the output device. Particularly advantageous embodiments are obtained when the Feinstaubabsaugeinrichtung is designed as a piece of furniture, as described below.

In an advantageous embodiment it can be provided that the fine dust extraction device has a preferably tubular guide having an inlet opening and an outlet opening, wherein the inlet opening can be arranged in the region of a ventilation outlet of the output device and wherein the outlet opening opens above the top side of the output device, preferably in the covering area the exhaust hood. In preferred embodiments, the guide may be provided for output devices with a lateral vent outlet. For output devices with more than one lateral ventilation outlet, a guide device can be provided for each ventilation outlet or also a guide device with a number of inlet openings corresponding to the number of ventilation outlet openings.

It can be provided that the guide is formed telescopically adjustable in length.

In a further advantageous embodiment it can be provided that the Feinstaubabsaugeinrichtung has a preferably L- or T-shaped base, wherein on the vertical leg of the L- or T-shaped base, the guide is arranged.

It can further be provided that the Feinstaubabsaugeinrichtung has a preferably L- or T-shaped base, wherein the vertical Leg of the base the exhaust hood is arranged. The above-mentioned advantages of the simplified assembly without tools also characterize this training of Feinstaubabsaugeinrichtung.

In an advantageous embodiment, it can be provided that the vertical leg is formed telescopically adjustable in length. This can be made by the user in a simple manner, a height adjustment of Feinstaubabsaugeinrichtung to the height dimension of the output device. Thus, even after an exchange of the output device against an output device with a different height dimension, the adaptation of Feinstaubabsaugeinrichtung to the new output device is very easy and with the least expenditure of time possible. In preferred embodiments, the exhaust hood can preferably be automatically controlled by a motor height adjustable.

It can further be provided that the fine dust extraction device has an L-shaped or T-shaped base whose horizontal leg forms a support surface for the output device. The horizontal leg may preferably be plate-shaped and forms a bearing surface for the output device. This advantageous embodiment is characterized in that the Feinstaubabsaugeinrichtung without assembly tools and without tools can be mounted.

It can be provided that the exhaust hood is pivotally mounted on a fastener. The fastening element can preferably be mounted on the wall or on the ceiling or on a piece of furniture. Due to the pivotable arrangement, it is possible, for example, to optimally adapt the intake behavior to the local conditions. To visualize the Air flow can be used, for example, cigarette smoke.

In a further advantageous embodiment it can be provided that a sensor is arranged on the fine dust filter, which determines the degree of filling of the fine dust filter. The sensor may be a physical sensor or a measuring device. But it is also possible to provide a virtual sensor. The virtual sensor can be realized for example by the measurement and software evaluation of the motor current of the fan. The higher the degree of filling of the fine dust filter, the more work must be expended to promote the air flowing through the fine dust filter, d. H. the more the motor of the fan is loaded and the higher the motor current. The motor current rising over the period of use can thus be set in relation to the degree of filling of the fine dust filter.

It can further be provided that the fine dust extraction device has a control device which provides an electrical power connection controlled by the sensor for the output device. This design of Feinstaubabsaugeinrichtung is characterized in that the output device is automatically switched off when the fine dust filter is added.

It may further be provided that the control device has a network connection for a computer network. In medium to larger offices, it is common for workstation computers and output devices to be connected to and form a computer network with a server. With the proposed solution, it is possible, for example, to integrate the Feinstaubabsaugeinrichtung in the network and software-side means for signaling the proper operation of the Fine dust extraction device, to issue the state of the particulate matter filter, etc. at each workstation and possibly to prevent the printout if there is a malfunction of Feinstaubabsaugeinrichtung.

It can be provided that the control device is arranged in or on the exhaust hood.

In a further advantageous embodiment it can be provided that the fine dust filter is designed as a partial filter of a combination filter.

The combination filter may have a layered construction.

It can be provided that in the combination filter a coarse dust filter, the fine dust filter and an activated carbon filter are arranged one behind the other, wherein the activated carbon filter faces the fan.

It can further be provided that the fine dust filter or the combination filter is arranged exchangeably in the exhaust hood. It may further be provided that the exhaust hood can only be put into operation if a fine dust filter, in particular a functional fine dust filter used. In the simplest case, a micro-switch may be provided which is actuated by the fine dust filter or combination filter used and which closes the circuit of the fan motor.

It can further be provided that the fine dust filter or the combination filter has a sealing lip. The sealing lip may preferably be provided as a circumferential sealing lip.

In a further advantageous embodiment it can be provided that the fine dust filter or the combination filter has a first mold element which cooperates in a preferred position of the fine dust filter or the combination filter with a second mold element which is arranged on the exhaust hood. The first mold element may, for example, have larger external dimensions than the internal dimensions of the second formula set, for example a receiving space for the fine dust filter or combination filter, and be arranged on an end face of the particulate matter filter or combination filter as a circumferential collar. The first mold element and the second mold element act as control elements which correspond to each other in the correct installation position, preferably engage one another in a form-fitting complementary manner. In preferred embodiments, the first mold element is designed as a recess and the second mold element as a complementary elevation or vice versa.

Preferably, it can be provided that the mold element is the sealing lip.

It can also be provided that the shaped element is a groove, preferably a circumferential groove.

The fine dust extraction device according to the invention can also advantageously be used for general air filtering. Thus, for example, bee pollen can be removed from the room air by using the Feinstaubabsaugeinrichtung.

In preferred embodiments, it may be provided that the position of the exhaust hood relative to the output device is adjustable by motor or manually is trained.

It can be provided that the motor for adjusting the position is sensor-controlled.

In a further advantageous embodiment it can be provided that the Feinstaubabsaugeinrichtung is designed as a piece of furniture in which the output device and on or in which the fan is arranged. In this embodiment, the piece of furniture forms an exhaust fan at least partially enclosing the output device.

The piece of furniture may have a box-shaped housing in which the output device is arranged.

It can be provided that the fan is arranged in a separate compartment of the piece of furniture or in a separate housing.

The piece of furniture can be designed as a cabinet wall or element of a cabinet wall.

Furthermore, a fine dust extraction device may be provided for a printing device using a printing medium output method, such as printer, copier or fax machine, which is designed as described in the device device described above.

Fig. 1

eine erste Ausführung der Geräteeinrichtung in einer schematischen Seitenansicht;

Fig. 2

die Geräteeinrichtung in Fig. 1 in einer schematischen Schnittansicht längs der Schnittlinie II-II;

Fig. 3

eine zweite Ausführung der Gräteeinrichtung in einer schematischen Schnittansicht;

Fig. 4

eine dritte Ausführung der Geräteeinrichtung in einer schematischen Schnittansicht;

Fig. 5

eine vierte Ausführung der Geräteeinrichtung in einer schematischen Seitenansicht;

Fig. 6

eine fünfte Ausführung der Geräteeinrichtung mit Einbindung in ein Computernetzwerk;

Fig. 7

eine sechste Ausführung der Geräteeinrichtung in einer schematischen Seitenansicht;

Fig. 8a, 8b

eine siebte Ausführung der Geräteeinrichtung in einer schematischen Seitenansicht;

Fig. 9

eine achte Ausführung der Geräteeinrichtung in einer schematischen Schnittansicht;

Fig. 10a

eine Detaildarstellung eines Kombinationsfilters in Fig. 9;

Fig. 10b

ein zweites Ausführungsbeispiel des Kombinationsfilters in Fig. 10a;

Fig. 11a

eine neunte Ausführung der Geräteeinrichtung in einer schematischen Schnittansicht;

Fig. 11b

die Geräteeinrichtung in Fig. 11a in der Seitenansicht;

Fig. 12a

eine zehnte Ausführung der Geräteeinrichtung in einer schematischen Schnittansicht;

Fig. 12b

die Geräteeinrichtung in Fig. 12a in der Seitenansicht;

Fig. 13

die Geräteeinrichtung in Fig. 11b in einer modifizierten Ausführung.

The invention will now be explained in more detail with reference to exemplary embodiments. Show it

Fig. 1

a first embodiment of the device device in a schematic side view;

Fig. 2

the device device in Fig. 1 in a schematic sectional view along the section line II-II;

Fig. 3

a second embodiment of the bone device in a schematic sectional view;

Fig. 4

a third embodiment of the device device in a schematic sectional view;

Fig. 5

a fourth embodiment of the device device in a schematic side view;

Fig. 6

a fifth embodiment of the device device with integration into a computer network;

Fig. 7

a sixth embodiment of the device device in a schematic side view;

Fig. 8a, 8b

a seventh embodiment of the device device in a schematic side view;

Fig. 9

an eighth embodiment of the device device in a schematic sectional view;

Fig. 10a

a detailed representation of a combination filter in Fig. 9 ;

Fig. 10b

a second embodiment of the combination filter in Fig. 10a ;

Fig. 11a

a ninth embodiment of the device device in a schematic sectional view;

Fig. 11b

the device device in Fig. 11a in the side view;

Fig. 12a

a tenth embodiment of the device device in a schematic sectional view;

Fig. 12b

the device device in Fig. 12a in the side view;

Fig. 13

the device device in Fig. 11b in a modified version.

The Fig. 1 and 2 show a device device comprising a Feinstaubabsaugeinrichtung 1 and the toner according to the toner particle printing method operating output device 2. Toner consists of 5 to 30 μm particles. It is composed of synthetic resin, pigments, magnetisable metal oxides and auxiliaries. The fine particles that make up the toner are so small that they can pass unhindered the function of filtering and protecting the lungs and thus enter the body.

For example, the output device 2 may be a laser printer connected directly or via a computer network to a workstation computer (see FIG Fig. 1 not shown). The very fine particles of the toner can partly reach the exhaust air of the output device 2 and thereby contaminate the room air.

The fine dust extraction device 1 has an exhaust hood 11, which is arranged above the output device 2. In the in Fig. 1 and 2 illustrated embodiment, the exhaust hood 11 is pivotally mounted on a ceiling 3 of a working space. Between a rigidly connected to the ceiling 3 mounting plate and the exhaust hood 11 is formed with a locking device arranged ball joint, so that the exhaust hood 11 is pivotally mounted about two spatial axes.

The exhaust hood 11 has a fan 11l with a fan housing 111 g, which has upstream of an intake port covered by a fine dust filter 111f upstream and slit-shaped outlet openings 111a downstream. The fan 11l has a driven by an electric fan motor 111m fan 111l, which promotes an air flow, which is directed from the suction port to the outlet openings 111 a and further generates a negative pressure in front of the suction port of the exhaust hood 11. Instead of the slot-shaped outlet openings and one or more preferably nozzle-shaped outlet openings may be provided, which make it possible to collect the exiting the exhaust hood cleaned exhaust air and selectively divert at a suitable location. It may be, for example, a coaxially arranged outlet opening in the upper end portion of the exhaust hood, which merges into an exhaust pipe. The exhaust pipe can be formed, for example, at the same time as a suspension for the exhaust hood.

The fine dust filter 111f may preferably be designed for the separation of particles in the size range of 1 to 10 μm. The fine dust filter 111f may further comprise a circumferential sealing lip, which on the one hand prevents particles to be filtered pass the fine dust filter into the exhaust hood 11 and then be released back to the room air, and on the other hand acts as a twist protection, so that the fine dust filter 111f only in one Preferred position can be used in the exhaust hood.

The output device 2 has in the in Fig. 1 and 2 illustrated embodiment on a side vent outlet 21 (see Fig. 2 ), from which emerges in the interior of the output device 2 heated cooling air, with Toner particles may be loaded. For effective deflection of the discharged cooling air, a tubular guide 12 is provided which has an inlet opening 12e and an outlet opening 12a, wherein the inlet opening 12e is arranged in front of the ventilation outlet 21 of the dispenser 2 and wherein the outlet opening 12a opens above the top of the dispenser 2.

The guide 12 is arranged on the vertical leg of an L-shaped base 13, wherein the horizontal leg forms a bearing surface for the output device 2. The base 13 rests on a footprint 4, which may be, for example, the surface of a table. The base 13 is thus clamped between the bottom or feet of the output device 2 and the footprint 4.

The loaded with toner particles and under pressure cooling air of the output device 2 exits from the vent 21 and into the inlet opening 12e of the guide 12, is deflected in the guide and exits from the outlet opening 12a of the guide 12 on the top of the output device again and then enters the intake of the exhaust hood 11. The funnel-shaped input portion 11e of the exhaust hood 11 covers an area which is greater than the base area of the output device 2. In the in the Figures 1 and 2 illustrated embodiment, the funnel-shaped input portion 11 e of the exhaust hood 11 is formed as a truncated cone. But it is also possible to train him, for example, as a truncated pyramid. The toner particles contained in the cooling air emitted by the output device 2 are deposited in the fine dust filter 111f, in addition to other dust-like admixtures of the air sucked into the exhaust hood 11. The cleaned air leaves the exhaust hood 11 through the outlet openings 111a in the fan housing 111g. Beforehand, the cleaned air is loaded with the waste heat of the fan motor 111m.

The air movements are in the Fig. 1 and 2 schematically indicated by arrows.

The Fig. 3 shows a second embodiment of the device device, which differs from the in Fig. 1 and 2 illustrated embodiment essentially differs in that the exhaust hood 11 is not arranged on the ceiling of a working space, but on the base 13. The vertical leg of the base 13 is formed telescopically adjustable in length and is pivotally connected in its upper end portion with a pivotable mounting arm 13s. The arranged between the base 13 and the pivot arm 13s pivot is characterized by an in Fig. 3 not shown clamping device formed clamped. At the free end portion of the mounting arm 13s, the exhaust hood 11 is arranged. Between the mounting arm 13s and the exhaust hood 11, a ball joint formed with a locking device is arranged, so that the exhaust hood 11 is pivotally mounted on the pivot arm 13s about two spatial axes. Instead of the pivotable mounting arm 13s may also be provided a rigidly connected to the stand 13 mounting arm, wherein the pivotability of the exhaust hood is obtained by the arranged between the mounting arm and the exhaust hood 11 ball joint.

Unlike the in Fig. 1 and 2 described embodiment, the guide 12 is formed height adjustable. On the one hand, by means of a rigidly connected to the guide 12 height-adjustable clamping device 12k, the inlet opening 12e of the guide 12 to the Ventilation outlet 21 of the output device 2 can be positioned opposite, and on the other hand, the height position of the outlet opening 12a of the guide 12 is adjustable by a telescopic design of the upper portion of the guide 12. The clamping device 12k engages around the telescopic vertical leg of the base 13, wherein a clamping screw is provided for actuating the clamping device 12k.

The Fig. 4 shows a third embodiment of the device device. In the Fig. 4 shown device device is like those in above Fig. 3 Device device described with the difference that no guide is provided because the output device 2 has no laterally disposed outlet opening for cooling air. Rather, the cooling air is discharged at the top of the output device 2 and therefore enters directly into the arranged above the output device 2 exhaust hood 11 and is freed from toner particles and other dust particles.

Fig. 5 shows a fourth embodiment of the device device in which the exhaust hood 11 is arranged on a fixed to a room or furniture wall 5 mounting arm 11 b. The exhaust hood 11 engages with the fan 11l an annular clamping device 11 k, which is connected via a lockable ball joint with the free end portion of the mounting arm 11b. But it can also be provided that is dispensed to the clamping device 11k and the exhaust hood 11 is connected directly to the ball joint.

The output device 2 is arranged on a footprint, which may be a table surface, a shelf or a room floor.

Fig. 6 shows a fifth embodiment of Feinstaubabsaugeinrichtung.

The Feinstaubabsaugeinrichtung 1 is as the above in Fig. 4 described Feinstaubabsaugeinrichtung, with the difference that on the fine dust filter 111f a sensor 111s is arranged, which determines the loading state of the particulate matter filter 111f. The sensor 111s may, for example, be a flow sensor or a measuring device for determining the flow or the flow resistance through the fine dust filter 111f. The sensor 111s is electrically connected to a signal input of a control device 14. The control device 14 has hardware-side and / or software-side means for evaluating the sensor signal. The control device 14 is in the in Fig. 6 illustrated embodiment further connected to a server 15 of a computer network, are connected to the workstation computer 16. The output device 2 is also integrated in the computer network.

The control device 14 prepares the sensor signal of the sensor 111 s such that it outputs an error message on the workstation computers with the aid of monitoring software if the fine dust filter 111f is added and / or the fan 11l is not in operation. It may further be provided that a warning message is already issued before, for example, if the absorption capacity of the particulate matter filter 111f is only 10% of the desired value. Further, the control device 14 may have a switchable socket for the output device 2, so that the output device 2 is put out of operation as soon as a set limit for the degree of filling of the fine dust filter 111f is exceeded. It can also be provided to put the output device 2 out of operation on the software side as soon as a set limit value for the degree of filling of the fine dust filter 111f is exceeded or no longer accept print jobs for the output device 2, for example the fine dust filter 111f is replaced.

The control device 14 can have an independent display device which emits optical and / or acoustic signals which provide information about the loading state of the fine dust filter 111f.

Furthermore, the control device 14 may be designed for a time-dependent programming, for example for determining operating times or for measuring and / or displaying the operating time of the fine dust filter 111f, possibly also the cumulative operating time.

It may further be provided that the exhaust hood 11 is also operated as a room air filter, regardless of whether the output device is in operation, so that in addition to toner particles and other fine dusts are removed from the room air, such as pollen.

Fig. 7 shows a further embodiment, wherein the Feinstaubabsaugeinrichtung 1 is constructed as the above in Fig. 4 described Feinstaubabsaugeinrichtung, with the difference that instead of the base 13, a console device 13k is provided which is rigidly connected to the output device 2. The console device 13k may be, for example, an accessory of the output device 2. The console device 13k can be connected, for example, by means of screw connections to the output device 2 or inserted into groove recesses of the housing of the output device 2 and be secured, for example, by a so-called snap-in connection.

The Fig. 8a and 8b show a Feinstaubabsaugeinrichtung 1 with a Exhaust hood 11, which has a frustoconical or truncated pyramid-shaped upper portion, which merges into a cylindrical or cuboidal section, whose inside clear dimensions are selected so that the output device 2 of the exhaust hood 11 can be covered. The exhaust hood 11 is mounted vertically adjustable via a telescopic device 13t on a ceiling 3 of a working space.

The exhaust hood 11 may preferably be integrated in a computer network, as described above in FIG Fig. 6 be described and software controlled. In particular, the length of the telescope device 13t can be controlled by the software. At the in Fig. 8a and 8b schematically illustrated telescopic device may be, for example, a driven by an electric motor mechanical transmission, for example, a rack and pinion gear, or a hydraulic or pneumatic actuating cylinder.

Fig. 8a shows the exhaust hood 11 in the shut down position, in which the output device 2 is covered by the exhaust hood 11, the exhaust hood is in operation and the output device 2 is in the output mode. The output device 2 is completely shielded from the ambient air, so that no toner particles can get into the ambient air.

Fig. 8b shows the exhaust hood in the raised position, in which the output device 2 is not covered by the exhaust hood 11 and therefore is freely accessible and the output device 2 is not in the output mode. It can be provided that the exhaust hood, despite the idle operation of the output device 2 continues to operate, so room air continues to suck and filter. This makes it possible to clean the room air when the output device 2 is not in the output mode, it being possible, for example, to purify the air from other admixtures, such as bee pollen and other fine dusts that can trigger allergies.

The FIGS. 9 and 10 show a further embodiment of the device device, which differs from the above in Fig. 3 described embodiment differs in that instead of the fine dust filter 111 f a combination filter 111k is disposed in the exhaust hood 11 and that further an ionizer 111i downstream of the fan 111l is arranged. The ionizer is a device for ionizing the air cleaned by the exhaust hood 11. Through the ionizer 111i, residual dust particles that are still contained in the purified room air can be bound by liberated ions and deposited on the inner wall of the exhaust hood 11. Thus, the intended ionizer 111i can further improve the degree of purity of the filtered room air. Further, the ionizer 111i can neutralize odors.

The ionizer 111i generates negatively charged ions (anions), whereas stale ambient air mainly contains positively charged ions (cations). Because pollutants, bacteria and allergens are positively charged, they can combine with the anions and precipitate out of the room air. The anions can continue to trigger chemical reactions that lead to the degradation of odoriferous gases and / or aerosols.

Fig. 10a shows the structure of the combination filter 111 k in a schematic sectional view. The combination filter 111 k has a multilayer structure. In the direction of flow, a fine dust filter 111kg is followed by the fine dust filter 111f and an activated carbon filter 111 ka. The activated carbon filter is 111 ka facing the fan 111l, ie downstream of the fine dust filter 111f arranged. The coarse dust filter 111kg is disposed upstream of the particulate matter filter 111f. By the coarse dust filter 111 kg coarse dust particles are filtered out, which could enforce the fine dust filter 111f. The activated carbon filter 111ka is provided to bind odor-forming gases and / or aerosols.

The combination filter 111 k has a filter housing with a control recess 111ku and a front-side circumferential sealing lip 111kl. The control recess 111 ku cooperates with a mounted in the exhaust hood 11 combination filter 111 k with a control survey of the exhaust hood 11 together. The control recess 111ku and the control elevation form a first and a second mold element which cooperate in a preferred position of the combination filter 111k forming the correct mounting position and prevent the combination filter 111k from being mounted incorrectly.

Fig. 10b shows a modified embodiment of the above-described combination filter 111 k, in which a circumferential groove 111 kn is provided to ensure the correct installation position of the combination filter 111 k and / or to avoid confusion with other filter designs.

The in the Fig. 1 to 8 The illustrated embodiments have no ionizers. They are therefore not covered by the claims of the present application. It should be noted, however, that modified versions of Fig. 1 to 8 are provided, which are equipped according to the patent with an ionizer 111i. The ionizer can be compared in these embodiments as in the embodiment in Fig. 9 be formed and arranged. It should also be noted that in the remarks of Fig. 1 to 8 and Similarly, in the modified embodiments, which have an ionizer 111 i, the filter 111 f may also be formed as a combination filter 111 k with a configuration and arrangement as they are for the embodiments of Fig. 9 and the 10a and 10b are described.

The Fig. 11 to 13 show exemplary embodiments in which the fine dust extraction device is integrated into a piece of furniture.

The Fig. 11 a and 11 b show an office furniture, which is designed as a cuboid housing. The housing is open at its front. In the interior of the box-shaped housing 6, the output device 2 is arranged. The output device 2 may be arranged on a bottom side, horizontal extendable.Sschub to facilitate the operation of the output device. The excerpt is in Fig. 11a and 11b not shown. The box-shaped housing 6 has in its cover plate on a passage opening through which the above, z. B. in conjunction with Fig. 9 described fan 11l is arranged with its suction port. The fan device 11l has, as in Fig. 11a and 11b can be seen, a fan housing in which a fan 111l and a fan motor 111 m are arranged. The fan is preceded by a combination filter 111 k. Downstream of the fan or the fan motor is an ionizer 111 i. The fan device 11l forms the suction hood of Feinstaubabsaugeinrichtung in this embodiment. Like from the Fig. 11a and 11b can be seen, this is a cuboid body, the bottom-side input portion is formed as an opening in the cover plate. The fan device 11l is arranged in the illustrated embodiment in the rear portion of the cover plate of the office furniture 6, so that the front portion of the cover plate can be used as a shelf is. In the operating pauses of the output device 2, the fan 111 can be used as a room air purifier.

The Fig. 12a and 12b show an office furniture 6, which like the one in Fig. 11a and 11b Office furniture described is formed with a box-shaped housing is constructed. The difference over the Fig. 11a, 11b in that the fan device 11l is arranged in a compartment 6a arranged above the box-shaped housing of the output device 2. The compartment 6a is also formed as a cuboid box. The compartment 6a is formed in the floor plan in alignment with the box housing 6 arranged underneath. At the front, the compartment 6a can be open or, as in Fig. 12a shown, having a door which is formed in the illustrated case as a flap 6k. On the back is in the illustrated case in Fig. 12a a passage opening provided for the cleaned exhaust air.

Fig. 13 shows an office furniture 6, which, like the one in Fig. 11 a and 11 b described office furniture is constructed, with the difference that a side wall of the box-shaped housing 6a is formed hinged, so that an improved access to the output device 2 is provided.

LIST OF REFERENCE NUMBERS

1

Feinstaubabsaugeinrichtung

2

output device

3

ceiling

4

footprint

5

Room or furniture wall

6

office furniture

11

exhaust hood

11b

Mounting Arm

11e

input section

11k

clamping device

11l

Fan

12

guide

12a

outlet opening

12e

inlet opening

12k

clamping device

13

stand

13k

bracket means

13s

swiveling mounting arm

13t

telescopic device

14

control device

15

server

16

Workstation

21

vent

111

outlet opening

111f

Feinstaubfilter

111i

ionizer

111k

combination filter

111ka

Activated carbon filter

111kl

sealing lip

111kg

Coarse dust filter

111kn

circumferential groove

111ku

Kontrollausnehmung

111l

fan

111m

fan motor

111g

fan housing

111s

sensor

Claims (15)

1. Device setup having an output device (2), which works according to the printing medium particle printing process, such as a printer, a copier or a fax machine, and having a fine particle suction device (1) arranged above the output device (2), wherein it is provided

   - that the fine particle suction device (1) has a suction hood (11), which can be arranged above the output device (2) and which is equipped with a fine particle filter (111f),

   - that the suction hood (11) has a fan (11l), which is arranged in a section of the suction hood (11) that is formed as a fan housing (11g),

   - that an ioniser (111i) is arranged in the suction hood (11), and

   - that the suction hood (11) has an inlet section (11e), which covers an area which is larger than the base area of the output device (2).
2. Device setup according to claim 1,
   characterised in that
   the suction hood (11) has an inlet section, which is situated upstream of the fan housing (111g).
3. Device setup according to claim 2,
   characterised in that
   the inlet section is arranged upstream before the fine particle filter (111f).
4. Device setup according to one of the preceding claims,
   characterised in that
   the fan housing (111g) upstream has a suction opening covered by the fine particle filter (111f) and downstream has at least one outlet opening.
5. Device setup according to one of the preceding claims,
   characterised in that
   the suction hood (11) has an inlet section, which is formed to be able to completely cover the output device (2).
6. Device setup according to one of the preceding claims,
   characterised in that
   the ioniser (111i) is arranged downstream behind the fan (11l).
7. Device setup according to one of the preceding claims,
   characterised in that
   a sensor (111s) is arranged on the fine particle filter (111f), which detects the fill level of the fine particle filter (111f).
8. Device setup according to claim 7,
   characterised in that
   the fine particle suction device (1) has a control device (14), which provides an electrical power supply for the output device (2), which is controlled by the sensor (111s).
9. Device setup according to one of the preceding claims,
   characterised in that
   the fine particle filter (111f) is formed as a partial filter or a combination filter (111k).
10. Device setup according to claim 9,
    characterised in that
    the combination filter (111k) has a layered structure.
11. Device setup according to claim 10,
    characterised in that
    in the combination filter (111k), a coarse particle filter (111kg), the fine particle filter (111f) and an active carbon filter (111ka) are arranged one behind the other, wherein the carbon filter (111ka) is facing towards the fan (111).
12. Device setup according to one of the preceding claims,
    characterised in that
    the fine particle filter (111f) or the combination filter (111k) are arranged in the suction hood (11) so that they can be exchanged.
13. Device setup according to one of the preceding claims,
    characterised in that
    the position of the suction hood (11) relative to the output device (2) is formed so that it can be adjusted by a motor or manually.
14. Device setup according to one of the preceding claims,
    characterised in that
    the device setup is formed as a piece of furniture (6), in which the output device (2) and on which or in which the fan (111) is arranged.
15. Fine particle suction device for an output device (2) working according to a printing medium particle printing process, such as a printer, copier or fax machine,
    characterised in that
    the fine particle suction device is formed in such a way as is provided in the device set up according to one of the preceding claims.

Images