JP3266767B2 - Automatic document feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mounting a speaker in an automatic document feeder provided in an image forming apparatus such as a facsimile transceiver or an electrostatic copying machine.

[0002]

2. Description of the Related Art An automatic document feeder (A) for reading a document.
A FAX transceiver equipped with a DF) is often provided with a rotatable operation unit in the upper half of the ADF. In such a model, a speaker for audio output is usually provided at a side or rear portion within the FAX body.

[0003]

However, when the size of the FAX body is reduced to save space, it is often not possible to secure a sufficient space for disposing a speaker in the FAX body.

Therefore, it is conceivable to provide a speaker in a casing of a rotatable operation unit.
As shown in (2), when the output surface b of the speaker a was turned upward, the sound was interrupted by the operation panel c with high airtightness immediately above it, and the sound tended to be muffled inside. FIG.
In the figure, reference numeral d denotes an operation unit, e denotes its casing, f denotes a hinge, and g denotes a FAX body.

[0005] Further, when the output surface b of the speaker a is mounted facing upward, there is a problem in that the mounting work of the speaker a is complicated.

The present invention has been made in view of such circumstances,
It is an object of the present invention to provide an automatic document feeder in which no sound is trapped inside, sound is easily removed to the outside, and the apparatus can be easily mounted and can be made compact.

[0007]

According to the present invention, means for solving the above-mentioned problems are constituted as follows. That is, the invention according to the first aspect is characterized in that a speaker is arranged in a casing of an operation unit which is provided to be rotatable upward at an upper part of the image forming apparatus main body, with an output surface facing downward.

[0008] According to a second aspect of the present invention, the loudspeaker according to the first aspect of the present invention is mounted on a cylindrical housing erected in a casing of the operation section,
In addition, an opening is formed in the lower part of the inside of the housing so as to pass downward.

According to a third aspect of the present invention, the outer peripheral portion of the speaker according to the second aspect is fixed by a plurality of hooking claws provided along the housing.

[0010]

According to the first aspect of the invention, since no speaker is provided in the image forming apparatus main body, the apparatus main body can be made compact. Further, since the speaker is provided downward in the casing of the operation unit, the mounting operation is facilitated, and the sound emitted downward is emitted outside from between the operation unit and the apparatus main body and does not stay inside.

According to the second aspect of the present invention, since the sound output from the speaker is emitted to the outside from the inside of the cylindrical housing through the lower opening, sound to the outside is good, and the message can be transmitted more reliably.

According to the third aspect of the present invention, the outer peripheral edge of the downward speaker placed on the housing is fixed to a plurality of hooking claws provided along the housing.
The speaker can be mounted very easily.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic document feeder according to the present invention will be described below in detail with reference to the drawings. 1 is a perspective side view of an operation section of an automatic document feeder (ADF), FIG. 2 is a longitudinal sectional front view of a main part of the ADF, FIG. 3 is a side view of the operation section turned upside down, and FIG. FIG. 5 is an external perspective view of a facsimile transceiver.

In these figures, reference numeral 1 denotes an operation portion which can be turned upward, 2 denotes a casing thereof, 3 denotes a FAX main body (image forming apparatus main body), and 4 denotes a pivotal connection between the casing 2 of the operation portion 1 and the FAX main body 3. Hinges with holes, 5 is an operation panel, 6
Is a pressing plate, 7 is a spring, 8 is a sabaki pad, 9 is a speaker for transmitting a message, and an upper portion of a cylindrical housing 11 (see FIG. 2) standing upright in the casing 2 with its output surface 10 facing downward. , And the outer peripheral edge of the speaker 9 is hooked and fixed by hooking claws 12 formed by cutting a part of the housing 11 in the vertical direction.

A housing 11 for supporting the speaker 9
An opening 13 is formed in the lower part of the inside of the housing (see FIG. 2), and the sound emitted downward from the speaker 9 is allowed to escape downward through the opening 13 without being muffled in the casing 2. Sound can be efficiently emitted to the outside through a gap between the operation unit 1 and the FAX body 3 (see FIG. 5).

The operation unit 1 can perform a facsimile transmission / reception operation and an image copying operation by operating the operation panel 5, and can be turned upward and opened when a paper jam occurs. In the present invention, the FAX main body 3 can be formed compact by housing the speaker 9 downward in a space directly below the operation panel 5 in the casing 2 of the operation unit 1 and, as described above, to the outside. The sound of the speaker 9 is improved, and the work of mounting the speaker 9 is facilitated.

The facsimile main body 3 will be described (see FIG. 4). 21 is a document table, 22 is a paper width regulating plate, 23 is a paper discharge tray, 25 is a forward feed roller, 26 is a paper feed roller,
27 is a transport roller, 28 is a reading device (CIS), 29
Denotes a discharge roller, and 31 denotes a driving source for driving the above-described paper feeding / discharging system, and these and the operation unit 1 constitute an ADF. The above-mentioned hinge 4 is of a fitting type made of a resin material from the inside, and has a through hole for inserting the wiring 30 at the center thereof.

In the lower part of the FAX body 3, reference numeral 34 denotes a sheet mounting table, 35 denotes a paper feed roller, 36 denotes an intermediate roller, 37 denotes a registration roller, 38 denotes a photosensitive drum, 39 denotes a developing device, and 40 denotes a photosensitive drum.
Is a transfer roller, 41 is a fixing roller, 42 is a paper carrying path,
43 is an optical system unit, and 44 is a paper discharge tray.

The facsimile transceiver configured as described above includes:
A push button for instructing a facsimile transmission / reception operation and a push button for instructing a copying operation are arranged on the operation panel 5, and operate as follows. First, regarding the fax transmission operation, the original loaded on the original table 21 is
Forward feed roller 25, paper feed roller 26, and transport roller 2
When the document passes through the reading device 28 through 7, the content of the document is read, transmitted to the transmission destination, and the read document is discharged to the paper discharge tray 23. When the reading of the previous document is completed, the feeding of the next document is started. During that time, a slight delay time occurs until the driving force is transmitted to the forward feed roller 25 and the feed roller 26. Therefore, double feed is effectively prevented.

Next, in the facsimile receiving operation, first, image data received from outside is converted into an optical signal by the optical system unit 43 and is exposed on the surface of the photosensitive drum 38, and the exposed image is developed by the developing device 39. The image is transferred when the sheet supplied from the sheet table 34 passes through the transfer roller 40. The sheet on which the image has been transferred is separated from the photosensitive drum 38 and fixed by a fixing roller 41, and then discharged from a sheet discharge path 42 onto a discharge tray 44.

On the other hand, during the copying operation, the original table 21
When a document supplied from above passes through a reading device 28 via a forward feed roller 25, a paper feed roller 26, and a transport roller 27, the content of the read document is exposed on the surface of a photosensitive drum 38, and the exposure is performed. After the image is developed, it is transferred to a sheet and fixed, and then discharged onto a discharge tray 44 in the same manner as in the case of FAX reception.

[0022]

As described above, according to the first aspect of the present invention, since the speaker is disposed downward in the casing of the operation unit which is provided to be rotatable upward at the upper part of the main body of the image forming apparatus, The image forming apparatus main body can be formed compact. Since the speaker is provided downward, the mounting work is facilitated, and the sound does not escape from the space below the device body.

According to the second aspect of the present invention, the speaker whose output surface faces downward is mounted on the cylindrical housing erected in the casing of the operation section, and comes out downward at the lower portion inside the housing. Since the opening is provided, the sound emitted from the speaker escapes from the inside of the cylindrical housing through the lower opening to the outside, so that the sound can be easily removed and the message can be transmitted more reliably.

According to the third aspect of the present invention, the outer peripheral edge of the loudspeaker having the output surface mounted on the upper portion of the cylindrical housing is fixed by a plurality of hooking claws provided along the housing. Therefore, the speaker can be mounted with extremely high workability.

[Brief description of the drawings]

FIG. 1 is a perspective side view showing a configuration of a main part in an embodiment of an automatic document feeder according to the present invention.

FIG. 2 is a longitudinal sectional view showing a configuration of a main part of the automatic document feeder.

FIG. 3 is a side view showing the operation unit in a state where the operation unit is turned upward.

FIG. 4 is an overall configuration diagram of an image forming apparatus provided with the automatic document feeder.

FIG. 5 is a perspective view of the image forming apparatus.

FIG. 6 is a side view assuming a case where a speaker is provided upward in an operation unit casing of a conventional automatic document feeder.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Operation part, 2 ... Casing, 3 ... Image forming apparatus (FA
X body), 9 speaker, 11 housing, 12 hook, 13 opening.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-259159 (JP, A) JP-A-4-70251 (JP, A) JP-A-1-231550 (JP, A) 51853 (JP, U) JP 52-20801 (JP, B1) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04N 1/00-1/00 108 G03G 15/00 550

Claims (3)

(57) [Claims] 1. An automatic document feeder comprising a speaker having an output surface directed downward in a casing of an operation unit provided on an upper part of an image forming apparatus so as to be rotatable upward. 2. The speaker according to claim 1, wherein the speaker is mounted on a cylindrical housing erected in a casing of the operation unit, and an opening is formed in a lower part of the inside of the housing to open downward. The automatic document feeder according to claim 1, wherein 3. The automatic document feeder according to claim 2, wherein an outer peripheral portion of said speaker is fixed by a plurality of hooking claws provided along said housing.