JP3320864B2 - Office equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a printer,
The present invention can be applied to office processing equipment such as a copier, a facsimile, a scanner, or a multifunction peripheral thereof. More specifically, the present invention relates to a business processing device including an interlock switch that is turned on and off by opening and closing an opening / closing lid on a side of the device body.

[0002]

2. Description of the Related Art Conventionally, in this type of business processing equipment, an interlock switch is provided in the equipment main body.

[0003] For example, when the open / close lid on the side of the device body is opened during maintenance, a projection on the inner surface of the open / close lid separates from the interlock switch, and the interlock switch is turned off to ensure safety.

[0004]

However, in such a conventional office equipment, since an interlock switch is provided in the equipment main body, there is a problem that the equipment main body is inevitably increased in size.

[0005] It is therefore an object of the present invention to reduce the size of the main body of a business processing apparatus having an interlock switch.

[0006]

Accordingly, the present invention provides
For example, as shown in the illustrated embodiment below, an open / close lid 40 is provided on a side surface of a device main body such as the printer main body 10, and an interlock switch 47 that is turned on / off by opening and closing the open / close lid 40 is provided. In such office processing equipment, the interlock switch 47 is provided around the opening / closing lid 40 so as to protrude from a side surface of the main body of the apparatus, and when opening / closing the opening / closing lid 40, the interlock switch 47 is held. The knob 40a for turning on and off the interlock switch 47 in contact with or away from the
0, and a locking member 45 is pressed against the opening / closing lid 40.
Characterized by comprising providing a lid holding means for holding the lid 40 in the open closed Te.

[0007]

According to the present invention, for example, when the knob 40a is gripped and the opening / closing lid 40 is opened during maintenance, the knob 4
0a leaves the interlock switch 47 and turns it off. On the other hand, for example, after maintenance is completed,
Is closed, the knob 40a contacts the interlock switch 47 to turn it on.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 4 shows an overall schematic configuration of a multifunction peripheral of a printer and a scanner according to an embodiment of the present invention.

Reference numeral 10 in the drawing denotes a printer main body (equipment main body). In the printer main body 10, a belt-shaped photoconductor 11 is provided substantially at the center thereof. Around the photoreceptor 11, the charging device 12, the developing device 1
3. The transfer device 14 and the cleaning device 15 are arranged. An optical writing unit 16 is disposed below the charger 12 and the cleaning unit 15, and a sheet cassette 17 is detachably mounted diagonally above the developing unit 13.

On the other hand, reference numeral 20 in the figure denotes a scanner main body, which is disposed above the paper feed cassette 17 and provided integrally with the printer main body 10. The figure left side of the scanner main body 20 is provided with a document platen 21. In the scanner body 20, a paper feed roller 22 and a pair of upper and lower transport rollers 23 are sequentially provided in front of the document table 21. Also,
A document pressing roller 25 is provided in front of the vertical transport roller pair 23.
And a close contact image sensor 24 are disposed vertically facing each other, and a pair of upper and lower discharge rollers 26 is provided in front of the image sensor 24.

When the original is read by the scanner, the original P is placed on the original table 21 and set, and then the original P is fed out as needed, and is sent out by the paper feed roller 22 in the direction of the arrow. Then, the document P is conveyed by the upper and lower conveyance rollers 23 and the timing of the start of reading is adjusted. Then, the image of the document P, which is pressed by the document pressing roller 25 and passes over the contact image sensor 24, is read. Read with. After the reading, the original P is discharged to the outside by the upper and lower discharge rollers 26.

When the image read by the scanner is recorded by the printer, or when the image is recorded by using the printer as a terminal, the sheet is fed from the sheet cassette 17 by the sheet feeding roller 29. S
And is conveyed to the upper side of the photoconductor 11 by the registration roller 30 at a certain timing.

The photosensitive member 11 is driven to rotate in a counterclockwise direction as indicated by an arrow. At this time, the surface of the photosensitive member 11 is uniformly charged by a charger 12 and is irradiated with a laser beam from an optical writer 16 to cause the photosensitive member 1 to rotate.
1 to form an electrostatic latent image. This latent image is visualized by toner when passing through the position of the developing device 13. Then, this visible image is transferred to the lower surface of the sheet S conveyed above the photoconductor 11 by the transfer device 14. After the transfer, the sheet S is transferred to the fixing device 3
1 and the visible image is fixed by the fixing device 31. The sheet S that has exited the fixing device 31 is conveyed to a paper discharge unit 33 by a paper discharge roller 32, guided by a paper discharge guide 34, and stacked on a paper discharge tray 35.

On the other hand, after the transfer, the surface of the photoconductor 11 is cleaned by the cleaning device 15.

As shown in FIG. 1, the multifunction peripheral of the illustrated embodiment is provided with an opening / closing lid 40 on the lower side surface of the printer main body 10 so as to be openable and closable about a fulcrum 41. The opening / closing lid 40 has a flat plate shape, and has a knob 40 on the upper outer surface.
a is provided. The knob 40a is a vertically elongated ridge, and a part thereof is provided to protrude above the upper end of the opening / closing lid. Also, the opening / closing lid 40
On both sides of the lower end portion of the
Is provided. The arm portion 40b is formed in an arc shape with the fulcrum 41 as a center, and an arc-shaped concave portion 40c is formed on the outer edge of the base end portion.
And a guide pin 42 is provided at the center of the tip.

As shown in FIG. 2, a guide groove 4 is formed on a side plate 43 of the printer main body 10 which is orthogonal to the opening / closing lid 40.
3a and a mounting groove 43b are provided. The guide groove 43a is
As in the case of the arm portion 40b, an arc is provided around the fulcrum 41 as a center. The mounting groove 43b is provided with a guide groove 43a.
Are provided in a straight line outwardly from an intermediate position of the center, and constrictions 43c are provided on both left and right sides near the branch position, and a projection 43d is provided on the back.

[0017] Then, the locking member 45 in the mounting groove 43 in the b
Is provided. The lock member 45 is formed in a slightly small block shape, an arc-shaped convex portion 45a is provided at the center of the front end, a convex portion 45b is provided at the center of the rear end, and the concave grooves 4 are provided on both left and right sides.
5c is provided. Then, the locking member 45 placed in a mounting groove 43 in the b, provided a locking member 45 movably put the constriction 43 c in the groove 45 c. Then, put a spring 46 in the mounting groove 43 in the b, pressed against one end to the rear end of the locking member 45, the other end mounting groove 43
b to the state shown in FIG. then,
One end of the spring 46 is provided with the projection 4 of the lock member 45.
Put 5b, the back of the mounting groove 43 b on the other end side projection 43
Insert d.

On the other hand, an interlock switch 47 protruding from the side surface of the printer body 10 is provided around the opening / closing lid 40 so as to be appropriately supported. The interlock switch 47 is provided with a switch piece 47a facing the knob 40a of the opening / closing lid 40 and facing downward.

As shown in FIG. 1, when the cover 40 is closed, the interlock switch 47 is pressed by the knob 40a to turn it on. Further, the lock member 45 is urged by the spring 46 so that the arc-shaped convex portion 45 is formed.
a is inserted into the arc-shaped concave portion 40c of the arm portion 40b to lock the closed state of the opening / closing lid 40.

For example, when the knob 40a is picked up and the opening / closing lid 40 is opened at the time of maintenance, the arm portion 40b is opened.
As a result, the lock member 45 comes off the arc-shaped concave portion 40c. Then, the opening / closing lid 40 rotates counterclockwise around the fulcrum 41 in FIG. 1, and the knob 40a separates from the interlock switch 47 to turn it off, thereby turning off the power supply of the multifunction peripheral to ensure safety. When the cover 40 is opened and closed, the guide pin 42 moves and guides in the guide groove 43a. When the cover 40 is completely opened, the state shown in FIG. 3 is reached, and the lock member 45 is pressed against the tip of the arm portion 40b to lock the open state of the cover 40. Then, the user puts his hand in the printer body 10 and, for example,
Or replace the toner cartridge with a new one.

After completion of the maintenance, the knob 40a
When the lid 40 is closed and the opening / closing lid 40 is closed, the state shown in FIG. 1 is obtained, and the knob 40a contacts the interlock switch 47 to turn it on.

As is apparent from the above description, since the interlock switch 47 is provided so as to protrude from the side surface of the printer main body 10, the printer main body 10 can be made smaller accordingly. Further, since the interlock switch 47 is turned on / off by the knob 40a and a projection for turning on / off the interlock switch 47 is not separately provided, the opening / closing lid 4 is not provided.
The appearance of No. 0 can be improved, and there is no danger of catching hands or clothes on the protrusions.

[0023]

As described above, according to the present invention, since the interlock switch is provided so as to protrude from the side surface of the device main body, the device main body can be made compact.

Further, since the interlock switch is turned on and off by the knob, and the projection for turning the interlock switch on and off is not separately provided, the projection of the opening / closing lid can be reduced, and the appearance is good. Also, there is no danger of catching a hand or clothes on the projection.

[Brief description of the drawings]

FIG. 1 is a diagram showing a state in which an opening / closing lid is closed in a multifunction peripheral of a printer and a scanner according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a part thereof.

FIG. 3 is a view showing a state in which an opening / closing lid is opened in the multifunction peripheral.

FIG. 4 is an overall schematic configuration diagram of the multifunction peripheral.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Printer main body (device main body) 20 Scanner 40 Openable lid 40a Knob 47 Interlock switch

Claims (1)

(57) [Claims] 1. An office equipment having an opening / closing lid on a side surface of a device main body and an interlock switch that is turned on / off by opening / closing operation of the opening / closing lid. And a knob for turning the interlock switch on and off while contacting or separating from the interlock switch at the time of opening and closing the open / close lid and locking the open / close lid. Element
Against it formed by providing an opening and closing cover holding means for holding the lid in the open-closed state by pressing, paperwork equipment.