JPH01136181A - Image forming device - Google Patents

Abstract

PURPOSE:To facilitate the change of parts which cannot be touched until cooled because of their high temperature by providing an engaging part which permits at least one change part to change other change parts, and a part to be engaged where the other change parts engage with the engaging part. CONSTITUTION:A toner cartridge 13 can be removed by hand because it is not soiled and not at high temperature. Therefore the toner cartridge is provided with a clip 13-1 which is used as a tool to release other change parts. The clip 13-1 of the toner cartridge has a recessed part on the inner side, and the pinch 14-1 of a cleaning pad 14 has a projecting part which fits in with the recessed part of the clip 13-1. The clip 13-1 and the pinch 14-1 are engaged by pushing the clip 13-1 of the toner cartridge 13 onto the pinch 14-1 of the cleaning unit 14. Thus there is no danger of a hand touching a high temperature part and furthermore, because there is no need for a cooling period, the change of parts can be swiftly carried out without soiling the hands.

Description

[Detailed description of the invention] Exchange fLL! The present invention relates to a technology for replacing parts of image forming apparatuses such as copying machines and laser printers.

Takumi's confusion - Conventionally, as in the present invention, when an engaging member is attached to a replacement part, a limb engaging member is attached to a replacement part of the same number.

There is no need for a Fii billion acid forming device that uses replacement parts to remove and replace the replacement parts of the pond from the main body of the machine.

For example, when replacing the cleaning pad of the fixing device of an image forming apparatus, conventionally the machine was left until the fixing device cooled down, and then the cleaning pad was replaced directly by hand. However, waiting for the fixing device to cool down as in step 2 is a waste of time, and such parts replacement is inefficient. Furthermore, when the cleaning bath is handled directly by hand, there is a drawback that the hands get dirty.

1-E In order to solve the above-mentioned problems in the prior art, the present invention uses other replacement parts as tools for replacing parts of an image forming apparatus, and replaces the fixing device without using any other special tools. To provide an image forming apparatus in which it is easy to replace parts such as a cleaning machine and a cleaning machine, which are hot and cannot be touched until they cool down.

1-" In order to achieve the above object, the present invention provides an ML forming apparatus having a plurality of replacement parts, in which at least 61 replacement parts have an engaging part for replacing the replacement parts of the pond. The other replacement part has an engaged part that engages with the engaging part.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a sectional view of a laser printer, which is an example of an image forming apparatus to which the present invention can be applied.

The laser beam emitted from the optical unit 1 is irradiated onto the OPC belt 3 charged by the charging charger 2 to form a latent image, which is then developed by the developing device 4 to become a toner image. This toner image is transferred by a transfer charger 7 onto a transfer paper conveyed from a paper feed tray 5 by a conveyance roller 6. The transfer paper carrying the transferred unfixed toner image is fixed by a fixing device 8, and is discharged to the outside by a paper discharge roller 9 to complete printing. 10
1 is a power supply unit, 11 is a static elimination lamp, and 12 is a cleaning unit. A cleaning pad 14, which is pressed against the toner cartridge 13 mounted on the developing device 4 and the fixing roller 8-1 of the fixing device 8 in order to clean the rollers, is a replacement part in the embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the toner cartridge 13 is removed. When replenishing toner, the toner cartridge is replaced at a toner cartridge location, so the toner cartridge before replenishment becomes unnecessary. In addition, the toner cartridge/body is clean and not at high temperatures, so it can be removed by hand. Therefore, a clip 13-1 as shown in FIG. 4 is attached to this and used as a tool for releasing other replacement parts.

FIG. 3 is a perspective view showing a state in which the covers 15 and 16 of the main body fixing section and the fixing device 8 are opened and the cleaning pad 14 is replaced. The cleaning pad 14 replacement cycle is the same as the toner replenishment cycle, and these are replaced at the same time. Also, cleaning pad 14
is inside the fuser 8 and is in contact with the fixing roller 8-1, so it is too hot to touch directly with your hands, and it is time consuming to replace it by hand after it has cooled down and due to toner adhesion. My hands get dirty. Therefore, a knob 14-1 as shown in FIG. 5 is attached to the cleaning pad 14, and the toner cartridge tray 13 is used to take out the toner cartridge. The cleaning pad 14 is housed in a guide 17 and is only pressed against the fixing roller 8-1 during operation by a spring 18 attached to the cover of the fixing device 8, and is not fixedly attached, so that it can be easily removed from the fixing device. It can be taken out from 8.

FIGS. 4 and 5 are perspective views showing the state in which the clip 13-1 and the knob 14-1 are attached to the toner cartridge 13 and the cleaning pad 14, respectively. The cleaning pad 14 is shown in a simplified manner with reinforcing materials omitted. The clip 13-1 of the toner cartridge has a concave portion inside, and the knob 14-1 of the cleaning pad has a convex portion that fits into the concave portion.

The clip 13-1 and the knob 14-1 fit together as shown in FIG. This is done by pressing the clip 13-1 of the toner cartridge 13 onto the knob 14-1 of the cleaning unit/Vt 14. Therefore, the tip of chestnut 1713-1 is open to facilitate fitting. In addition, these members can also be configured so that the clip 13-1 is fitted while being slid in parallel to the knob 14-1.

The removed cleaning unit 14 and toner cartridge/body 13 are discarded as they are. If you replace parts in this way, there is no risk of your hands touching hot parts, and
Since no cooling time is required, parts can be replaced quickly and one person does not have to get their hands dirty.

Circle-1 As described above, according to the present invention, replacement parts can be replaced in a short time and without tiring hands, so that the serviceability of the image forming apparatus can be improved.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a longitudinal sectional view showing the configuration of a laser printer, FIG. 2 is a perspective view showing a state in which a toner cartridge is removed, and FIG. 3 is a perspective view showing a state in which a cleaning unit is removed. 4 is a perspective view showing the clip mounting portion of the toner cartridge, FIG. 5 is a perspective view of the cleaning unit with the knob attached, and FIG. 6 is a sectional view showing the state of the bottom of the clip and the knob. 13... Toner cartridge (replacement part), 14...
・Cleaning pad (other replacement parts), 13-1...
・Clip (engaging part), 14-1...knob (engaged part)

Claims (4)

[Claims] (1) In an image forming apparatus having a plurality of replacement parts, at least one replacement part has an engaging part for replacing another replacement part, and the other replacement part is connected to the engaging part. An image forming apparatus characterized by having an engaged portion that engages. (2) The image according to claim 1, wherein each engaging portion of the at least one replacement part engages with the engaged parts of a plurality of other replacement parts. Forming device. (3) A patent claim characterized in that the other replacement part is a part that is dirty and difficult to touch with your hands, a part that is high in temperature and dangerous to touch with your hands, or a part that is dirty and has a high temperature. The image forming apparatus according to the range 1 or 2. (4) According to any one of claims 1 to 3, the at least one replacement part and the other replacement part have a replacement period of approximately the same period. image forming device.