JPS61265958A - Image information reader - Google Patents

Abstract

PURPOSE:To scan only a desired copying area by providing an optical carriage with a scale, permitting an operating means to shift the scale to a desired position and moving the optical carriage to an original scale side so as to scan an area between the scale and an original scale. CONSTITUTION:The original G is set on an original glass 2 by matching it to the original scale 40, and the carriage 11 is located at a point B in figure (at a position separate from the original scale by (y)) by pressing and operating the copying area setting key of an operating part. When the copying button is pressed and operated in this state, a lamp 6 emits light, and simultaneously the carriages 11 and 12 are shifted by the distance (y) against the original scale 40 side to scan the range (y) of the original G. Then its image is formed on a CCD 10 through a lens 14 and mirrors 7-9 reflecting the light from the original G, and accordingly the image information is read out.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to, for example, an image information reading device included in a scanner printer device.

[Technical background of the invention and its problems]

Generally, in a scanner printer device, an original is set on an original glass, and the original is scanned while being irradiated with light from a lamp, and the reflected light is imaged on a photoelectric conversion element via a mirror and a lens to create an image. It is readable. Based on this image reading information, the thermal head of the printer section is operated to transfer the image onto the paper.

Incidentally, the lamp and mirror are attached to a carriage, and the document is scanned by movement of the carriage.

However, in the past, the carriage was scanned by moving the carriage across the maximum copyable area, so if the area to be copied is small, for example, if the copy area is small or the original is small, copying time is wasted. This has the disadvantage that it requires a lot of energy and does not consume a lot of power, especially those in which the carriage is driven by dry batteries or the like, which has the disadvantage of significantly increasing battery consumption.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and its object is to provide an eating surface image information reading device that allows only a desired copy area to be scanned.

[Summary of the invention]

The present invention achieves the above object by providing a scale/L' on an optical carriage, moving this scale to a desired position by an operating means, and moving the area between this scale and the original scale to the optical carriage. By moving the optical carriage to the scale side and scanning, it is possible to scan only the desired range of the copyable area.Moreover, by returning the optical carriage to its original position after scanning, it is possible to easily move the optical carriage when copying the next document. This allows the amount to be reduced.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to all the drawings. In the figure, reference numeral 1 denotes a main body of the apparatus, and a document glass 2 serving as a document table is provided on the upper surface of the device main body 1, and this document glass 2 is opened and closed by a document cover 3. A document scale 40 for positioning the document G is provided on one side of the document glass 2 . In addition, the device main body 1
As shown in FIG. 2, a scanner part 4 is provided below the document glass 2, and a printer part 5 is provided at the rear of the scanner part 4. .

The scanner part 4 is constructed as shown in FIG. That is, 6 in the figure is a lamp, and light is irradiated from this rung 6 onto the document G placed on the document glass 2.

The reflected light from the original G is reflected by the first to third mirrors 7,
8, 9 and lens 14 to C0DIO, where the image is read. above run f6
The first mirror 7 is attached to a first carriage 11, and the second and third mirrors 8 and 9 are attached to a second carriage 12. As shown in FIG. 4, the first and second carriages 11 and 12 are supported at one end by a guide rail 13 in a freely sliding manner, and at the other end by a guide plate 17 via rows 216g and 16bf. has been done. Further, one end side of the first carriage 11 is connected to a drive belt 19 via a connecting piece 113t'', and this drive belt 19 is passed between a drive row 220 and a fiddle roller 21. 220 is rotationally driven by the drive motor 22. Also, a frame 23 is provided at one end of the second carriage 12.
are integrally formed, and this frame 23 has a pair of gouries 30a.

sob are spaced apart. These Ghouli 30h
, 30b, a wire 25 is passed through the wire 25, one end of which is fixed to a fixed portion 26, and the other end biased by a spring 27. The connecting piece 18 is also connected to the middle part of this wire 25 and integrated therewith.

Further, a scale 29 is provided on the upper surface of the first carriage 11.

On the other hand, the drive motor 22 is connected to the operating section 31, which will be described later. By pressing the tongue 32, the drive belt 19 is rotated in forward and reverse directions, causing the drive belt 19 to run. As the driving belt 19 runs, the connecting piece 18. Wire 25. f-li 3
0a.

1st and 2nd carry via sob, zo 11.12
is moved along the guide rail 15 and guide plate 17 to scan the original G, and returns to the initial position after scanning is completed. At this time, the second carriage 12 is run at half the speed of the first carriage 11 in order to keep the optical path length constant.

Further, as shown in FIG.
are now connected and separated. In addition, the above f2 ten 3
A paper P and an ink print (not shown) are interposed between the thermal head 7 and the thermal head 38.

To the above thermal, CCD 38 is the CCD of the above scanner part 4.
Heat is generated based on the image information read by the printer 10, and the Inclidene ink is transferred to the paper P to form a glint.

On the other hand, an operating section 31 is provided on the front surface of the apparatus main body 1, as also shown in FIG. That is, 32 in the figure is a copy button, and on the side of this copy button 32, in order, there are a density adjustment key 33, a copy number setting key 34, a segment display section 35, and a pair of copy area setting keys 39h as operation means. 39b is provided.

By the suppressing operation of the copy area setting key 39a, the drive motor 22 of the carriage 11.12 is rotated in the forward direction, and the carriage 11.1 is rotated in the forward direction as shown in FIGS. 4 and 7.
2 in the direction of arrow a, and by pressing the other copy area setting key 39b, the carriage 11.
11.12 The drive motor 22 of
It is designed to move in the direction of the arrow.

For example, if you want to copy a part of the document G as shown in FIG. 6 (range y shown in FIG. 8), first place the document G on the document glass 2 as shown in FIG. Set the original according to the scale 40, and then move the first carriage 11 to the copy area setting key 39a of the operation unit 31.
Alternatively, by pressing 39b, it is positioned at point B in FIG. 11 (at a distance y from the document scale 40). When the copy methane 32 is pressed from this state, the run f6 is emitted and the first and second carries, -
)11.12 is moved by a distance y, and the range y of the document G is scanned. Then, the reflected light from the original G passes through the first to third mirrors 7, J, 9 and the lens 14 to the COD f
0 and the image information is read. Based on this read image information, the thermal pad 38 of the printer section 6 generates heat, and the image is transferred onto the paper P as shown in FIG.

As described above, according to this embodiment, only a desired area of the copyable area can be scanned, and unnecessary scanning can be eliminated. In addition, since the carriage 11 and 12 are moved to the document scale 40 for scanning and returned to the initial position after scanning, when scanning the next document, the carriages 11 and 12 can be moved to the desired position with a small amount of movement. can be moved to
Work efficiency can be improved.

Furthermore, since the scale 29 is provided on the first carriage 11, there is no need for a special mechanism for moving the scale 29, and the structure can be simplified.

Note that the present invention is not limited to the above embodiment,
Of course, various modifications can be made within the scope of the gist.

〔Effect of the invention〕

As explained above, the present invention is an optical carrier.

A scale is provided on the paper, the scale is moved to the desired position by the operating means, and the area between this scale and the original scale is scanned by moving the optical carriage toward the original scale, making it possible to copy as before. There is no need to scan the entire area unnecessarily, the time required for copying can be shortened, and the power consumption is also low. Especially when the driving source is a battery, it can last a long time, which is economical.

Furthermore, since the carriage is returned to its initial position after scanning, it can be positioned at a desired position with a small amount of movement when scanning the next document, thereby improving work efficiency.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view showing an image forming apparatus, FIG. 2 is a perspective view showing its internal structure, FIG. 3 is a front view showing a part of the scanner, and FIG. Figure 4 is a perspective view thereof, Figure 5 is a perspective view showing the operation section, Figure 6 is a plan view showing the original, Figure 7 is a plan view showing the original placing section, and Figure 8 is the copy area for the original. 9 is a plan view showing a state in which the scale is positioned, FIG. 10 is a plan view showing a copied sheet, and FIG. 11 is a plan view showing a copy scanning state. 2... Original glass (original table), 4Q... Original scale, G... Original, 11.12... Optical carriage,
29...Scale, 39h, 39b...Koni' -
! 17A setting key (operation means). Applicant's agent Patent attorney Takehiko Suzue Figure 4

Claims (1)

[Claims] A device that sets a document on a document table according to a document scale, scans the document with light by moving an optical carriage, and reads the image. and operating means for moving the carriage to a desired position,
An image information reading device characterized in that the optical carriage moves toward the document scale to scan an area between the document scale and the scale of the optical carriage, and returns to the original position after scanning.