Sheet loading device and image forming device

Abstract

To suppress infiltration of moisture from the outdoor air to the inside of a storage frame.SOLUTION: A feeding module 1000 comprises: a storage cabinet 1100a on which sheets are loaded; a feeding unit 1600 for feeding the sheets loaded on the storage cabinet; an electrical component; a sealing frame 1500 for housing the storage cabinet and the electrical component; a power supply part 1510 provided outside the sealing frame for supplying power to the electrical component; a bundle wire 1511 connecting the electrical component and the power supply part; an opening part 1512 provided in the sealing frame through which the bundle wire passes; and a seal member 1513 provided between the opening part 1512 and the bundle wire.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present invention relates to a sheet stacking device that stores sheets, transports the stored sheets, and has a sealed structure, and to an image forming apparatus. [Background technology]

[0002] In recent years, the printing industry has demanded industrial inkjet printers that can achieve high productivity and high-quality output. Industrial inkjet printers print on sheets using a print head, but the print gap, which is the clearance between the print head and the sheet, has a significant effect on image quality. When the print gap disappears due to deformation of the sheet or other reasons, this is called a head touch. Head touch not only reduces the quality of the output, but can also damage the print head.

[0003] When a printing machine is installed in a high humidity environment, the unprinted sheet in the sheet stacking device may absorb moisture in the high humidity environment, causing the sheet to become wavy. The deformation of the sheet due to the wavy shape leads to a decrease in the print gap. For this reason, even when a printing machine is installed in a high humidity environment, it is necessary to prevent the sheet in the sheet stacking device from absorbing moisture in the high humidity environment. Patent Document 1 discloses that a humidity adjusting device consisting of a dehumidifying heater and a humidifier is provided in a cassette that stores transfer paper, and the humidity in the cassette is adjusted to keep the moisture content of the transfer paper within a predetermined range. Patent Document 2 discloses that a magazine having a housing that stores sheets and a cover that can be opened and closed relative to the housing has a moisture-proof structure at all contact points between the housing and the cover. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 9-236953 [Patent Document 2] Japanese Patent Application Publication No. 9-132330 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the configuration of Patent Document 1 has a problem in that the installation of a humidity adjustment device results in an increase in the size of the device. Also, in the configuration of Patent Document 2, for example, in order to place a load component such as an air handling fan inside the magazine, it is necessary to pass an electric cable from the inside to the outside of the magazine. If an opening is provided in the magazine to pass the cable, there is a problem in that the moisture-proofing of the inside of the magazine cannot be maintained. [Means for solving the problem]

[0006] In order to solve the above problems, a sheet stacking device according to one embodiment of the present invention comprises: A storage compartment in which the seat is placed; a sheet feeding means for feeding the sheets placed in the storage case; Electrical components, a storage frame for storing the storage case and the electrical components; a power supply unit provided outside the storage frame and configured to supply power to the electrical components; A cable connecting the electrical component and the power supply unit; an opening provided in the storage frame through which the cable passes; a seal member provided between the opening and the cable; The present invention is characterized by comprising: Effect of the Invention

[0007] According to the present invention, it is possible to suppress an increase in size of the sheet stacking device, while suppressing the intrusion of moisture from the outside air into the inside of the storage frame provided with an opening through which a cable passes. [Brief description of the drawings]

[0008] [Figure 1] FIG. [Diagram 2] FIG. 4 is a perspective view of the feeding module with the storage unit pulled out. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] 5 is a cross-sectional view of the enclosure frame and storage unit taken along line VV in FIG. 4; [Figure 6] 6 is an enlarged cross-sectional view of the portion enclosed by dashed-dotted rectangle VI in FIG. 5 . [Figure 7] FIG. [Figure 8] FIG. [Figure 9] 3A to 3C are schematic diagrams showing cross sections of a bundle wire, an opening, and a sealing member. [Figure 10] 9 is a cross-sectional view of the two-piece seal member taken along line XX in FIG. 8 . DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The present invention will be described below using embodiments. Note that the scope of the present invention is not limited to the embodiments described below, and all of the configurations described in the embodiments should not be construed as essential components of the present invention.

[0010] (Inkjet recording device) Hereinafter, an inkjet recording apparatus 10 will be described as an example of an image forming apparatus according to the present embodiment with reference to the accompanying drawings. However, the image forming apparatus is not limited to the inkjet recording apparatus 10, and may be, for example, an electrophotographic image forming apparatus that forms a toner image on a sheet. FIG. 1 is a cross-sectional view of the inkjet recording apparatus 10. The inkjet recording apparatus 10 is a sheet-fed type, and forms an ink image (image) on a sheet using two liquids, a reaction liquid and an ink. The inkjet recording apparatus 10 includes a feeding module (sheet stacking device) 1000, a print module 2000, a drying module 3000, a fixing module 4000, a cooling module 5000, a reversing module 6000, and a discharge stacking module 7000. A cut sheet (hereinafter, referred to as a sheet) fed from the feeding module 1000 is transported along a transport path, processed in each module, and discharged to the discharge stacking module 7000.

[0011] (Feeding module) The feeding module 1000 includes three storages 1100a, 1100b, and 1100c, each of which stores a plurality of sheets. The storages 1100a, 1100b, and 1100c are configured to be able to be pulled out to the front side of the feeding module 1000. The sheets stored in the storages 1100a, 1100b, and 1100c are transported one by one in the transport direction CD to the print module 2000 by the transport units 1102a, 1102b, and 1102c, which serve as transport means including a separation belt and transport rollers. The number of storages 1100a, 1100b, and 1100c is not limited to three, and may be one, two, or four or more.

[0012] (Print Module) The print module 2000 includes a pre-imaging registration correction section 2100, a print belt unit 2200, and a recording section (image forming section) 2300. The sheet transported from the feeding module 1000 has its inclination and position corrected by the pre-imaging registration correction section 2100, and is transported to the print belt unit 2200. The recording section 2300 is disposed facing the print belt unit 2200 across the transport path. The recording section 2300 is an image forming section that performs recording processing (printing) on ​​the transported sheet from above with a recording head to form an ink image. The sheet is adsorbed and transported by the print belt unit 2200, ensuring a clearance (print gap) with the recording head.

[0013] The recording heads provided in the recording unit 2300 are arranged in a plurality of rows along the conveying direction CD. In this embodiment, the recording unit 2300 has a total of five line-type recording heads corresponding to the reaction liquids in addition to the four colors of Y (yellow), M (magenta), C (cyan), and Bk (black). The number of colors and the number of recording heads are not limited to five, and may be one, two, three, four, or six or more. The inkjet method can employ various methods such as a method using a heating element, a method using a piezoelectric element, a method using an electrostatic element, and a method using a MEMS (Micro Electro Mechanical Systems) element. Ink of each color is supplied to the recording head from an ink tank (not shown) through an ink tube. The sheet on which the ink image is formed by the recording unit 2300 is conveyed by the print belt unit 2200 to an in-line scanner (not shown) arranged downstream of the recording unit 2300. An in-line scanner (not shown) detects misalignment and color density of an ink image formed on a sheet by the recording unit 2300, and the detection results are used to correct ink images formed thereafter.

[0014] (Drying module) The drying module 3000 includes a decoupling section 3200, a drying belt unit 3300, and a hot air blowing section 3400. The drying module 3000 is a unit that reduces the liquid content contained in the ink applied to the sheet by the recording section 2300 and enhances the fixation of the ink to the sheet. The sheet on which an ink image is formed by the recording section 2300 of the print module 2000 is transported to the decoupling section 3200 arranged in the drying module 3000. The decoupling section 3200 applies air pressure from above to weakly hold the sheet on the belt, and transports the sheet by the frictional force of the belt. This makes it possible to prevent the sheet on which the ink image is formed by the recording section 2300 from shifting on the print belt unit 2200. The sheet transported from the decoupling section 3200 is adsorbed and transported by the drying belt unit 3300, while hot air is blown from the hot air blowing section 3400 arranged above the drying belt unit 3300, and the ink-applied surface of the sheet is dried. In addition to the method of applying hot air, the drying method may also be a method of irradiating the surface of the sheet with electromagnetic waves (such as ultraviolet or infrared rays), a conductive heat transfer method in which a heating element is brought into contact with the surface of the sheet, or a combination of these methods.

[0015] (Fixing module) The fixing module 4000 includes a fixing belt unit 4100 and a first reversing section 4200. The fixing belt unit 4100 can fix the ink onto the sheet by passing the sheet conveyed from the drying module 3000 between a heated upper belt unit and a lower belt unit. The first reversing section 4200 is provided in a double-sided conveying section of the fixing module 4000, and reverses the sheet from front to back.

[0016] (Cooling module) The cooling module 5000 includes a plurality of cooling units 5100 that cool the high-temperature sheet transported from the fixing module 4000. The cooling units 5100 take in outside air into a cooling box with a fan, increase the pressure inside the cooling box, and cool the sheet by blowing air from nozzles formed in the transport guide onto the sheet. The cooling units 5100 are disposed on both sides of the transport path, and can cool the sheet from both sides.

[0017] The cooling module 5000 also includes a conveying path switching unit 5200. The conveying path switching unit 5200 can switch the conveying path of the sheet according to whether the sheet is conveyed to the inversion module 6000 or to the double-sided conveying path 1400 used for double-sided printing. During double-sided printing, the sheet is conveyed to a conveying path 5300 below the cooling module 5000 by the conveying path switching unit 5200. The sheet is conveyed from the conveying path 5300 to a double-sided conveying path 1400 in the feeding module 1000 through a conveying path 4300 in the fixing module 4000, a conveying path 3500 in the drying module 3000, and a conveying path 2400 in the print module 2000. The sheet is conveyed from the double-sided conveying path 1400 to the pre-image registration correction unit 2100, the print belt unit 2200, and the recording unit 2300 of the print module 2000 again, where an ink image is formed by the recording unit 2300.

[0018] (Inversion module) The reversing module 6000 includes a second reversing unit 6400. The second reversing unit 6400 reverses the front and back of the sheet being conveyed. This allows the reversing module 6000 to change the front and back orientation of the sheet being discharged.

[0019] (Discharge Loading Module) The discharge stacking module 7000 includes a top tray 7200 and a stacking section 7500. The discharge stacking module 7000 aligns and stacks the sheets conveyed from the reversing module 6000 on the top tray 7200 or the stacking section 7500.

[0020] (Feeding module configuration) Next, the configuration of the feeding module 1000 will be described. Fig. 2 is a perspective view of the feeding module 1000 with the storage case 1100a pulled out. In this embodiment, the storage cases 1100a, 1100b, and 1100c have the same structure, so the storage case 1100a will be described below. However, the storage cases 1100a, 1100b, and 1100c do not necessarily have to have the same structure. For example, the storage cases 1100a, 1100b, and 1100c may be configured to have different heights so that the maximum number of sheets that can be loaded is different.

[0021] The storage cabinet 1100a is attached to a main body frame (feed frame) 1200 of the feeding module 1000 so as to be retractable. The storage cabinet 1100a is held by a left side plate 1202 and a right side plate 1203 provided on the main body frame 1200 via slide rails 1201. The storage cabinet 1100a is held by the main body frame 1200 so as to be movable in the front-rear direction FR between a closed position (mounted position) where the storage cabinet 1100a is pushed toward the rear side of the main body frame 1200, and a pulled-out position where the storage cabinet 1100a is pulled out to the front side of the main body frame 1200. When the storage cabinet 1100a is in the pulled-out position, sheets can be added and replaced in the storage cabinet 1100a.

[0022] The recording unit 2300 of the print module 2000 has a print head. The print gap, which is the clearance between the print head and the sheet, greatly affects the image quality. A state in which the sheet touches the print head due to deformation of the sheet, etc., is called a head touch. Head touch not only reduces the quality of the finished product, but can also lead to damage to the print head. When the inkjet recording device 10 is installed in a high-humidity environment, the sheet before image formation in the storage 1100a absorbs moisture from the installation environment and waving occurs. The deformation of the sheet due to such waving leads to an increase in head touch. Therefore, even when the inkjet recording device 10 is installed in a high-humidity environment, it is necessary to seal the storage 1100a to a certain extent so that air from the high-humidity environment does not flow into the storage 1100a, thereby reducing the absorption of moisture from the installation environment by the sheet in the storage 1100a. The sealed configuration of the storage 1100a will be described below.

[0023] (Storage) FIG. 3 is a perspective view of the storage 1100a. The storage 1100a is provided with a sheet placement section 1140 on which sheets are placed, and is configured to have airtightness to prevent moisture from entering from the outside air. The storage 1100a is provided with a sealing plate (front plate) 1152. An exterior cover 1153 is fixed to the front side of the sealing plate 1152. A sealing seal 1154 is fixed to the rear side of the sealing plate 1152. When the storage 1100a is pushed into the main frame 1200 and attached, the sealing seal 1154 closes the gap between the storage 1100a and the main frame 1200 to create an airtight state in order to prevent moisture from entering the storage 1100a from the outside air. Since the airtightness of the storage 1100a alone cannot prevent the inflow of outside air, the main frame 1200 also needs to be airtight. The configuration of the main frame 1200 will be described below.

[0024] (Main frame) FIG. 4 is a perspective view of the sealed frame 1500 and the storage 1100a. The main frame 1200 has a sealed frame (storage frame) 1500 that stores the storage 1100a. The storage 1100a is attached so as to be able to be pulled out from the sealed frame 1500. The sealed frame 1500 is provided in the main frame 1200 (feed frame) and is configured to have a sealed property to suppress the intrusion of moisture from the outside air. The sealed frames 1500 are provided corresponding to the storages 1100a, 1100b, and 1100c, respectively. That is, the storages 1100a, 1100b, and 1100c and the three sealed frames 1500 are configured in one-to-one correspondence. The internal configuration of the sealed frame 1500 will be described below.

[0025] (sealed frame) FIG. 5 is a cross-sectional view of the sealed frame 1500 and the storage 1100a taken along the line VV in FIG. 4. The sealed frame 1500 is a box-shaped opening at the front, and is composed of a left side plate 1202, a right side plate 1203, a rear side plate 1204, an upper side plate 1208, and a lower side plate 1209. The joints between the side plates are covered with a seal member so that no gaps are generated at the fastening parts between the side plates. The opening provided at the front of the sealed frame 1500 is covered by the sealing plate (front side plate) 1152 of the storage 1100a. When the storage 1100a is pushed into the sealed frame 1500 through the opening and attached, the sealing seal 1154 (FIG. 3) fixed to the sealing plate (front side plate) 1152 prevents outside air from entering the storage 1100a.

[0026] (feeding section) The sealed frame 1500 is provided with a feeding section 1102a. Fig. 6 is an enlarged cross-sectional view of a portion surrounded by a dashed-dotted rectangle VI in Fig. 5. The feeding section 1102a has a feeding unit (sheet feeding means) 1600 and a conveying roller unit (pulling roller unit) 1700. The feeding unit 1600 has a separation belt 1610 as a separation unit that separates and feeds sheets one by one from a sheet stack placed on a sheet placement section 1140 of the storage 1100a. The separation belt 1610 is driven by a motor 1611 as a drive section. The sealed frame 1500 houses the storage 1100a, the feeding unit 1600, and the motor 1611.

[0027] The conveying roller unit 1700 has a conveying roller that conveys the sheet separated by the feeding unit 1600. A separation belt 1610, a first suction fan 1601, a second suction fan 1671, and a side fan 1651 are arranged on the rear side plate 1204. The first suction fan 1601 sucks air so as to attract the sheet to the separation belt 1610. The second suction fan 1671 sucks air so as to suck the rear end of the sheet. The side fan 1651 blows side air in a direction opposite to the conveying direction to help the separation of the sheet by the separation belt 1610.

[0028] A slide rail 1201 that slidably holds the storage 1100a is disposed on the left side plate 1202 and the right side plate 1203. A front fan 1661 is disposed on the left side plate 1202. The front fan 1661 blows front air from upstream to downstream in the conveying direction to help the separation of the sheets by the separation belt 1610. The first suction fan 1601, the second suction fan 1671, the side fan 1651, and the front fan 1661 may be provided with a shutter (not shown) that blocks the flow of air. The shutter (not shown) may be configured to be opened and closed by, for example, a solenoid 501 that is an electrical component. Electrical components such as a sheet feed detection sensor (not shown) that detects a sheet and a storage open / close detection sensor (not shown) that detects whether the storage 1100a is closed are disposed inside the sealed frame 1500. Further, electrical components such as a temperature and humidity detection sensor (not shown) and a storage sheet detection sensor (not shown) are provided inside the sealing frame 1500. These electrical components are fed with power from a power supply unit 1510 provided outside the sealing frame 1500 via a cable 1511. The power supply unit 1510 may be a power supply port, a power outlet, etc. The configuration of the cable 1511 and the sealing frame 1500 will be described below.

[0029] FIG. 7 is a perspective view of the sealed frame 1500 seen from the rear side. Electrical components such as a fan and a motor 1611 inside the sealed frame 1500 are concentrated on the rear plate 1204 side. An opening is provided in the rear plate 1204 so that the electrical components can be accessed without removing the rear plate 1204 itself, and the opening is covered by the sealed cover 1210. Since the electrical components inside the sealed frame 1500 can be accessed through the opening by removing the sealed cover 1210, the workability when replacing or repairing the electrical components can be improved. A power supply unit 1510 provided outside the sealed frame 1500 is provided on the rear side of the main frame (feed frame) 1200. The electrical components provided inside the sealed frame 1500 and the power supply unit 1510 provided outside the sealed frame 1500 are connected by a cable 1511. The electrical components include a fan, sensors, a solenoid 501, a motor 1611, and the like. The sealed frame 1500 may house all of these electrical components, may house some of these electrical components, or may house only one of these electrical components. For example, the fan, sensors, and solenoid 501 may be disposed inside the sealed frame 1500, and the motor 1611 may be disposed outside the sealed frame 1500. The electrical components are not limited to these, and may be other electrical components. The cable 1511 is wired from the inside to the outside of the sealed frame 1500 through an opening 1512 provided in the sealed cover 1210. The configuration of the opening 1512 of the sealed cover 1210 and the cable 1511 will be described below.

[0030] FIG. 8 is a perspective view of the sealing cover 1210 attached to the rear side plate 1204. The sealing cover 1210 has a sealing lid 1211 attached so as to cover an opening provided in the sealing cover 1210. An opening 1512 for passing a cable 1511 is defined by the sealing covers 1210 and 1211. One part of the opening 1512 is formed in the sealing cover 1210, and the other part of the opening 1512 is formed in the sealing lid 1211. The opening 1512 is formed by fitting the other part of the opening 1512 of the sealing lid 1211 to the one part of the opening 1512 of the sealing cover 1210 and attaching the sealing lid 1211 to the sealing cover 1210. In this embodiment, the opening 1512 is formed by the sealing cover 1210 and the sealing lid 1211, but the opening 1512 may be formed only by the sealing cover 1210 or only by the sealing lid 1211.

[0031] In order to ensure airtightness, the size of the opening 1512 needs to be as small as possible relative to the cable 1511. However, it is difficult to eliminate the gap between the opening 1512 and the cable 1511 only by the configuration of the opening 1512 and the cable 1511. If there is a gap between the opening 1512 and the cable 1511, depending on how the cable 1511 is routed, the cable 1511 may move to one side of the opening 1512 due to the stiffness (bending tendency) of the cable 1511, and the effect of the gap may be exacerbated. Therefore, in this embodiment, a seal member 1513 is provided between the opening 1512 and the cable 1511 to ensure airtightness.

[0032] (Sealing material) FIG. 9 is a schematic diagram of a cross section of the cable 1511, a cross section of the opening 1512, and a cross section of the seal member 1513. In this embodiment, a cylindrical seal member 1513 having elasticity is provided at the opening 1512 to fill the gap between the opening 1512 and the cable 1511 and ensure airtightness. The seal member 1513 is an elastic member such as a sponge. The seal member 1513 fits around the outer periphery of the cable 1511 to seal the opening 1512 between the sealing cover 1210 and the cable 1511 and the opening 1512 between the sealing lid 1211 and the cable 1511. FIG. 9(a) shows the outer diameter (wire diameter) D1 of the cable 1511. FIG. 9(b) shows the inner diameter (diameter) D2 of the opening 1512. FIG. 9(c) shows the inner diameter D3 and the outer diameter D4 of the seal member 1513.

[0033] An outer diameter D1 of the cable 1511 is larger than an inner diameter D3 of the seal member 1513 that contacts the cable 1511 (D1>D3). An inner diameter D2 of the opening 1512 is larger than an outer diameter D1 of the cable 1511 (D2>D1). The inner diameter D2 of the opening 1512 is the same as or smaller than an outer diameter D4 of the seal member 1513 that contacts the opening 1512 (D2≦D4). In this embodiment, the amount of crushing (D1−D3) of the seal member 1513 crushed by the cable 1511 is set to be larger than the gap (D2−D1) between the cable 1511 and the opening 1512.

[0034] That is, the outer diameter D1 of the cable 1511, the inner diameter D2 of the opening 1512, and the inner diameter D3 of the seal member 1513 that contacts the cable 1511 satisfy the relationship D1-D3>D2-D1. As a result, even if the cable 1511 is shifted to one side in the opening 1512, the seal member 1513 elastically expands to seal the gap between the cable 1511 and the opening 1512. That is, by surrounding the cable 1511 with the seal member 1513 having a predetermined amount of crushing, even if the cable 1511 is shifted to one side in the opening 1512 and the seal member 1513 is crushed, the seal member 1513 expands so that no gap is formed on the other side. As a result, it is possible to ensure the hermeticity of the opening 1512 through which the cable 1511 passes. The seal member 1513 of this embodiment is formed in an integral cylindrical shape. However, the sealing member 1513 may be configured to be wound so as to surround the outer periphery of the bundled wires 1511. The sealing member 1513 may also be divided into two. Hereinafter, a two-piece sealing member 1514 according to another embodiment will be described with reference to FIG.

[0035] (Two-piece seal member) FIG. 10 is a cross-sectional view of the two-piece seal member 1514 taken along the line XX in FIG. 8. FIG. 10(a) is a view showing a state in which the sealing cover 1210 and the sealing lid 1211 are separated. FIG. 10(b) is a view showing a state in which the sealing cover 1210 and the sealing lid 1211 are joined together. The two-piece seal member 1514 is composed of a first seal member 1514a and a second seal member 1514b. The first seal member 1514a has a semi-cylindrical portion 1514a1 and extension portions 1514a2 and 1514a3 extending outward from both ends of the semi-cylindrical portion 1514a1. Similarly, the second seal member 1514b has a semi-cylindrical portion 1514b1 and extension portions 1514b2 and 1514b3 extending outward from both ends of the semi-cylindrical portion 1514b1.

[0036] The opening through which the cable 1511 passes is defined by a half opening 1512a provided in the sealing cover (a part of the sealing frame 1500) 1210 and a half opening 1512b provided in the sealing lid (another part of the sealing frame 1500) 1211. The sealing cover 1210 is provided with recesses 1515a and 1516a extending from both ends of the half opening 1512a. The sealing lid 1211 is provided with recesses 1515b and 1516b extending from both ends of the half opening 1512b. The half cylindrical portion 1514a1 of the first seal member 1514a is fitted into the half opening 1512a, and the extension portions 1514a2 and 1514a3 are fitted into the recesses 1515a and 1516a, respectively. The first seal member 1514a seals the half opening 1512a between the sealing cover 1210 and the cable 1511. The half cylindrical portion 1514b1 of the second seal member 1514b is fitted into the half opening 1512b, and the extension portions 1514b2 and 1514b3 are fitted into the recesses 1515b and 1516b, respectively. The second seal member 1514b seals the half opening 1512b between the sealing cover 1211 and the cable 1511.

[0037] The cable 1511 is connected to an electric component in the sealing frame 1500 via a connector 1517 provided on the sealing cover 1210. In FIG. 10, the cable 1511 is drawn overlapping the first sealing member 1514a and the second sealing member 1514b, but the cable 1511 does not penetrate the first sealing member 1514a and the second sealing member 1514b. In this embodiment, the cable 1511 is wired to bypass the first sealing member 1514a and the second sealing member 1514b. The cable 1511 is sandwiched between the semi-split cylindrical portion 1514a1 of the first sealing member 1514a and the semi-split cylindrical portion 1514b1 of the second sealing member 1514b, and the sealing lid 1211 is attached to the sealing cover 1210. The sealing lid 1211 may be fixed to the sealing cover 1210 by a fastening member such as a screw.

[0038] The first seal member 1514a seals between the cable 1511 and the half opening 1512a on one side of the cable 1511. The second seal member 1514b seals between the cable 1511 and the half opening 1512b on the other side of the cable 1511. The first seal member 1514a and the second seal member 1514b each have a predetermined amount of crushing. When the cable 1511 is surrounded by the first seal member 1514a and the second seal member 1514b, the cable 1511 may shift to one side in the opening as shown in FIG. 10(b). For example, even if the cable 1511 shifts to the first seal member 1514a on one side in the opening and the first seal member 1514a is crushed, the second seal member 1514b on the other side will expand. As a result, the opening consisting of half opening 1512a and half opening 1512b is sealed by first seal member 1514a and second seal member 1514b so that no gap is formed, and airtightness can be ensured.

[0039] According to this embodiment, even if the cable 1511 is arranged offset in the opening, the sealing member has a sufficient amount of crushing, so that no gap is formed between the cable 1511 and the opening and the sealing member can seal it. According to this embodiment, in the feeding module 1000 mounted on the inkjet recording apparatus 10, it is possible to provide a sealed configuration for maintaining moisture resistance inside the feeding module 1000. According to this embodiment, it is possible to prevent the feeding module 1000 from becoming large, while preventing moisture from entering from the outside air into the sealed frame 1500 provided with the opening 1512 through which the cable 1511 passes.

[0040] In the above embodiment, the sealing seal 1154 (FIG. 3) is disposed in the storage 1100a. However, if the sealing seal can close the gap between the storage 1100a and the main body frame 1200 and achieve a sealed state, the sealing seal may be disposed in the main body frame 1200. [Explanation of symbols]

[0041] 1000 Feeding Module 1100a Storage 1500 sealed frame 1510 Power supply unit 1511 Bundled wire 1512 Opening 1513 Sealing material 1514 Two-piece seal member 1514a First seal member 1514b Second sealing member 1600 Feeding Unit

Claims

1. A storage compartment in which the seat is placed; a sheet feeding means for feeding the sheets placed in the storage case; Electrical components, a storage frame for storing the storage case and the electrical components; a power supply unit provided outside the storage frame and configured to supply power to the electrical components; A cable connecting the electrical component and the power supply unit; an opening provided in the storage frame through which the cable passes; a seal member provided between the opening and the cable; A sheet stacking device comprising:

2. 2. The sheet stacking device according to claim 1, wherein the storage frame stores the sheet feeding means.

3. The sealing member is an elastic member such as a sponge, The opening is defined by one part and another part of the storage frame, The sheet stacking device according to claim 1, characterized in that the sealing member comprises a first sealing member that seals the opening between the portion of the storage frame and the cable, and a second sealing member that seals the opening between the other portion of the storage frame and the cable.

4. The sealing member is an elastic member such as a sponge, The sealing member is wrapped around an outer periphery of the cable, 2. The sheet stacking device according to claim 1, wherein the sealing member seals the opening between the cable and the storage frame.

5. The sealing member is an elastic member such as a sponge, The sealing member has a cylindrical shape that fits around an outer periphery of the cable, 2. The sheet stacking device according to claim 1, wherein the sealing member seals the opening between the cable and the storage frame.

6. 2. The sheet stacking device according to claim 1, wherein an outer diameter D1 of the cable, an inner diameter D2 of the opening, and an inner diameter D3 of the seal member abutting against the cable satisfy a relationship: D1-D3>D2-D1.

7. 2. The sheet stacking device according to claim 1, wherein the electric component is a fan that blows air onto the sheets stored in the storage case.

8. 2. The sheet stacking device according to claim 1, wherein the electrical component is a sensor for detecting the presence of the sheet.

9. an image forming section for forming an image on the sheet; The sheet stacking device according to claim 1 , wherein the sheets on which the images are formed by the image forming unit are stacked; An image forming apparatus comprising:

Images