JP-7856472-B2 - Image forming apparatus

JP7856472B2JP 7856472 B2JP7856472 B2JP 7856472B2JP-7856472-B2

Inventors

久保隆

Assignees

シャープ株式会社

Dates

Publication Date: 20260511
Application Date: 20220411

Claims (7)

The enclosure that covers the main body of the device, A ventilation section is provided on the side of the housing, and ventilation holes penetrate the side of the housing are used to supply and exhaust air, It comprises a water leakage receiving portion located below the aforementioned ventilation portion and protruding toward the interior of the device body , The aforementioned ventilation sections are arranged in a row in the vertical direction. The aforementioned leak receiving portion has a receiving portion bottom surface extending toward the interior of the device body and a receiving portion upright surface erected on the edge of the receiving portion bottom surface, The bottom surface of the receiving portion abuts against the side surface of the housing below the ventilation hole located at the lowest part of the ventilation portion. The receiving portion's erected surface extends to above the ventilation hole located at the lowest part of the ventilation section. An image forming apparatus characterized by the following.
An image forming apparatus according to claim 1 , An image forming apparatus characterized in that the bottom surface of the receiving portion is inclined to become higher as it moves away from the side surface of the housing.
An image forming apparatus according to claim 1 , An image forming apparatus characterized in that the bottom surface of the receiving portion is inclined with respect to the width direction along the side surface of the housing.
An image forming apparatus according to claim 1 , An image forming apparatus characterized in that the receiving portion's vertical mounting surface is inclined to widen outward from the edge of the receiving portion's bottom surface as it extends upward.
An image forming apparatus according to any one of claims 1 to 4 , An image forming apparatus characterized in that the water leakage receiving section is provided facing the lowest part of the ventilation section.
An image forming apparatus according to any one of claims 1 to 4 , The image forming apparatus is characterized in that the water leakage receiving portion has a width in the width direction along the side surface of the housing that is greater than the width in the width direction of the ventilation portion.
An image forming apparatus according to any one of claims 1 to 4 , The image forming apparatus is characterized in that multiple leak receiving sections are arranged in the housing, and the multiple leak receiving sections are connected to each other.

Description

This invention relates to an image forming apparatus equipped with a housing that covers the main body of the apparatus. In recent years, image forming machines, which form images on paper, are installed in a variety of environments, including offices, shops, and homes. Depending on the installation environment, various situations can arise. For example, water may be poured onto the machine due to a sudden accident. If liquid such as water enters the inside of the image forming machine, it may come into contact with essential parts such as the circuit board, hindering normal operation and potentially causing damage. Therefore, printing machines (image forming machines) that reduce liquid intrusion by providing a drain port to guide liquid out of the casing are known (see, for example, Patent Document 1). Japanese Patent Publication No. 2015-30097 This is an external perspective view showing an image forming apparatus according to the first embodiment of the present invention.Figure 1 is a schematic diagram of the image forming apparatus shown.This is an enlarged front view showing a magnified portion of the front surface of the housing.This is an enlarged front view showing a magnified portion of the back side of the enclosure.This is an enlarged perspective view showing a close-up of a portion of the back side of the enclosure.This is an enlarged cross-sectional view showing the cross-section along arrow A-A in Figure 4.This is an enlarged cross-sectional view showing the cross-section along arrow B-B in Figure 4.This is a schematic front view showing an enlarged portion of the back side of the housing in a second embodiment of the present invention. (First Embodiment) Hereinafter, an image forming apparatus according to the first embodiment of the present invention will be described with reference to the drawings. Figure 1 is an external perspective view showing an image forming apparatus according to the first embodiment of the present invention, and Figure 2 is a schematic configuration diagram of the image forming apparatus shown in Figure 1. The image forming apparatus 100 is a multifunction device having scanning, copying, printing, and facsimile functions. It transmits the image of the original document scanned by the image reading device 110 to an external source (corresponding to the scanning function), and forms an image on paper in color or monochrome from the scanned original document or an image received from an external source (corresponding to the copying, printing, and facsimile functions). Above the image reading device 110, a document transport device 120 (ADF) is provided, which is supported so as to be openable and closable relative to the image reading device 110. When the document transport device 120 is opened, the area above the image reading device 110 is opened, allowing a document (paper) to be placed manually. The document transport device 120 also automatically transports the placed document onto the image reading device 110. The image reading device 110 reads the placed document or the document transported from the document transport device 120 and generates image data. The image forming apparatus 100 comprises an exposure unit 1, a developing unit 2, a photoreceptor drum 3, a cleaning unit 4, a charger 5, an intermediate transfer belt unit 6, a fixing unit 7, a paper feed tray 81, a manual feed tray 82, a paper output tray 91, and a paper transport path S. It forms multi-color and monochrome images on predetermined paper according to image data transmitted from an external source. The image data handled by the image forming apparatus 100 corresponds to a color image using black (K), cyan (C), magenta (M), and yellow (Y). Therefore, four units each of the developing apparatus 2, photoreceptor drum 3, charger 5, and cleaning apparatus 4 are provided to form four types of latent images corresponding to each color, and are set to black, cyan, magenta, and yellow respectively. These constitute four image stations. The photoreceptor drum 3 is positioned approximately in the center of the image forming apparatus 100. The charger 5 uniformly charges the surface of the photoreceptor drum 3 to a predetermined potential. The exposure apparatus 1 exposes the surface of the photoreceptor drum 3 to form an electrostatic latent image. The developing apparatus 2 develops the electrostatic latent image on the surface of the photoreceptor drum 3 to form a toner image on the surface of the photoreceptor drum 3. Through the above series of operations, toner images of each color are formed on the surface of each photoreceptor drum 3. The cleaning apparatus 4 removes and recovers residual toner from the surface of the photoreceptor drum 3 after development and image transfer. The intermediate transfer belt device 20 is positioned above the photoreceptor drum 3 and includes an intermediate transfer belt 21, an intermediate transfer belt drive roller 22, an intermediate transfer belt driven roller 2