JPH01200871A - Original reader - Google Patents

Abstract

PURPOSE:To correctly read a character or an image posted on an original mounting stand by mirror-image-converting a binarized signal read at the time of reading the character or image posted on the original mounting stand. CONSTITUTION:In a condition in which the image or character is posted on the original mounting stand, a recording paper is set in a printer unit part 11. Next, when a mirror image conversion is instructed by a selecting switching 12, the image or character posted on the original mounting stand is scanned by a xenon lamp 15, and simultaneously, the reflected light is conducted to a CCD sensor 17. A signal from the sensor 17 is photoelectric-converted by a photoelectric-converting circuit 192 and outputted to an image correcting circuit 93. An image signal from the correcting circuit 93 is binarized by a binarizing circuit 94 and outputted. The binarized signal is mirror-image- converted by a mirror-image-converting circuit 193 and outputted to the printer unit 11.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention is used in an image forming apparatus such as a scanner printer, and is applicable to a document placed on a document tray or a document placed on the document tray. By illuminating the written image or characters with light, guiding this reflected light to the reading sensor via the optical system, and outputting an image signal corresponding to this guided light, the document is read. The present invention relates to a document reading device.

(Prior art) Conventionally, the document j1F! was provided on the top surface of the main body. 2. Description of the Related Art A device for reading an image of a document on which a document is placed has been put into practical use.

In such a document reading device, by moving the document placing table, light is irradiated onto the document placed on the document placing table.
The document is read by a reading unit which guides this reflected light to a reading sensor via an optical system and outputs an image signal corresponding to the guided light.

In this case, the reading is performed on the document holding part, that is, the platen, which is white in color and does not reflect back.

(Problem to be solved by the invention) However, in the above-mentioned document reading device,
If you drew text or an image on the document table with a black marker (
Even if the document was written on the document, it had the disadvantage that it could not be read because the color of the document holding part, that is, the platen, was white.

Furthermore, when a black marker is used, there is a drawback that the read image is reversed (mirror image) left and right.

Therefore, it is not possible to accurately read the characters or images written on the document mounting table, and there is a drawback that there is no degree of freedom.

This invention eliminates the drawback that the characters or images written on the document tray cannot be read accurately and there is no freedom in reading them. It is an object of the present invention to provide a document reading device that can read accurately and improve the degree of freedom of reading.

[Structure of the Invention] (Means for Solving the Problems) A manuscript reading device of the present invention places a manuscript, and
A document placing table on which images or characters can be written; a reading means for optically reading the document placed on the document placing table; or an image or character written on the document placing table; A reading instruction means for instructing the reading of a written image or character, a mirror image conversion means for converting the reading result by the reading means into a mirror image, and when an instruction is given by the reading instruction means, the mirror image conversion means The output means outputs the reading result of the reading means when no instruction is given by the reading instruction means.

(Operation) The present invention optically reads an image or a character written on a document table by a reading means, converts the reading result by the reading means into a mirror image by a mirror image converting means, and converts the reading result by the reading means into a mirror image. The reading result mirror-converted by the reading means or the reading result of the reading means described above is selectively output.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 2 shows the external appearance of an image forming apparatus (scanner printer) 1 that uses a document reading device of the present invention. In the figure, 2 is the main body of the device, and on its upper surface is a document mounting table (document plate) made of a transparent acrylic plate. The table) 3 and the document holder (platen cover) 4 are in a state where they are sequentially superposed. Furthermore, on the front side there are 59 copy buttons and 6 number setting buttons.
．． Display unit (indicator) consisting of 7 segments7. A selection switch 12 for instructing the reading of images or characters written on the document table 3, and an insertion slot 13 into which an IC card 14 serving as an external storage device storing a predetermined pattern is inserted are provided. In addition, a power switch 8 is provided on the left side surface.

As shown in FIG. 19, for example, images or characters are written (drawn) on the document table 3 using a black marker (wipeable writing instrument) M.

The selection switch 12 is turned on when reading images or characters written on the original document mounting table 3.

As shown in FIG. 3, the document presser 4 is openable and closable so that it can be retracted from the document table 3 via a hinge portion 9 formed along its rear edge and formed of a thin wall. , the portion corresponding to the document table 3 is constituted by a white platen 4a.

The image forming apparatus 1 also includes a scanner unit section 10 as a reading device (reading section) for reading image information of a document placed on a document table 3;
A printer unit section 11 serves as a recording device that records and outputs the image information read at 0 on recording paper P as a visible image.
It is composed of.

As shown in FIGS. 4 and 5, the scanner unit section 10 includes a xenon lamp 15 as a light source for illuminating the document D1 on the document table 3 or an image or character written on the document table 3. , a mirror 16 that horizontally reflects light reflected from images or characters written on the document D1 or the document table 3, and a reduction type reading sensor that receives the light reflected by this mirror 16. The configuration includes an optical system 19 including a lens 18 that focuses light onto a CCD sensor 17. Also,
The optical system 19 is housed in an optical system accommodating portion 21 formed within a substantially fan-shaped partition frame 20 formed within the housing 2a of the main body 2 of the apparatus. The upper surface side of the optical system housing section 21 is closed by a cover 2b of the apparatus main body 2, and the lower surface side is closed by a light shielding plate 22. A slit 23 for passing reading light formed in the cover 2b is closed. This prevents light from entering from other sources.

Further, the scanner unit section 10 includes a main control board 26 in a short cavity 25 formed on the lower surface side of the optical system accommodating section 21, and an IC card reading section provided opposite to the insertion slot 13. 194 and the like, and the battery 28. Tall components such as a motor 29 and an inverter (xenon lamp lighting circuit) 97 are housed therein. Note that 3° (indicated by a two-dot chain line) shown in FIG. 4 indicates a mounting area for electronic components (not shown) mounted on the device 11 on the main control board 26.

Further, the printer unit section 11 is removably attached to a printer unit accommodating section 40 formed on the right end side of the apparatus main body 2, and is adapted to the size of the recording paper P (for example, A
It is possible to replace it with one equipped with an ink ribbon 41 suitable for A4 or A6) as appropriate.

As shown in FIG. 4, when the printer unit section 11 is accommodated in the printer unit accommodating section 40,
It is mechanically held in a predetermined position by positioning guide means formed in the printer unit accommodating portion 4o, and
By fitting the printer-side connector (male connector) 42 protruding from one end into the scanner-side connector (female connector) 43, it is electrically connected to the scanner unit section 10.

The printer unit section 11 also includes the connector 42.
A print head (thermal head) 45 is arranged, which is connected to the scanner unit section 10 side through the
A platen feed roller 46, which serves both as a platen roller and a feed roller, is provided opposite the heat generating portion 45a (not shown in detail) of the print head 45.

Furthermore, an ink ribbon supply means 47 that tensions the ink ribbon 41 with a middle part interposed between the heat generating part 45a of the print head 45 and the platen feed roller 46.
has been incorporated. The ink ribbon 41
is fed out from a feeding side core 48 installed parallel to the platen feed roller 46, and is fed out from a winding side core 49.
It is designed to be wound up. Further, a guide shaft 50 is installed between the platen feed roller 46 and the winding-side core 49, and the ink ribbon 41 is wound around the platen feed roller 46 with a constant opening, and the ink ribbon 41 is folded back. recording paper P
The ink ribbon 41 can be effectively separated from the ink ribbon 41.

In addition, the platen feed roller 46 and the feeding side core 48
A paper insertion port 55 is formed at a position corresponding to the recording paper insertion port 55, and the recording paper P inserted through the recording paper insertion port 55 is guided by a paper guide 56 between the ink ribbon 41 and the circumferential surface of the platen feed roller 46. The ink ribbon 41 is guided into a V-shaped space formed by the ink ribbon 41 and is conveyed while being held between the ink ribbon 41 and the platen feed roller 46 as the platen feed roller 46 rotates. Further, the recording paper P that has passed through the heat generating section 45a is separated from the ink ribbon 41 at the guide shaft 50 which also serves as a separating means, and then guided to a paper discharge port 59 by a paper guide 58 and discharged. ing.

Further, a drive mechanism section 60 is incorporated in the apparatus main body 2, which uses the motor 29 as a drive source to reciprocate the document table 3 and drives the platen feed roller 46 and the take-up core 49. It becomes.

That is, the scanner unit section 10 includes a first timing pulley (drive pulley) 65 attached to the drive shaft 29a of the motor 29, as shown in FIGS.
A second timing pulley (driven pulley) 68 is rotatably provided which is interlocked with the timing belt 66 via a timing belt 66 and has a first gear 67 as a driving eleven wheels integrally attached thereto.

As shown in FIG. 5, a first drive force transmission system 69 for driving the original platen and a second drive force transmission system for driving the platen feed roller are connected to each other using the first gear 67 as a drive source. A system 70 is provided.

As shown in FIGS. 5 and 7, the first driving force transmission system 69 includes a second gear 71 that meshes with the first gear 67, and a third gear 72 that is integral with the second gear 71. And this third
A fourth gear 73 as a binion meshing with the gear 72 of
The fourth gear 73 is in mesh with a rack 76 attached to a rear movable frame 75 connected to the document table 3 via a connecting means 74.

Therefore, when the first gear 67 serving as the driving gear rotates in the direction of the solid line arrow due to the rotation of the motor 29 in the forward direction (the direction of the solid line arrow in FIG. 5), the second gear 67 constituting the first driving force transmission system 69 rotates. gear 71. Third gear 72. The fourth gears 73 serving as binions rotate in the directions of the solid arrows, respectively, and move the rack 76 in the directions of the solid arrows in FIG.

As a result, the rear movable frame 75, which is reciprocatably attached to the rear frame 78 of the main body via the slide rail 77, and the document mounting table 3, which is connected to the rear movable frame 75 via the connecting means 74, move forward.

Further, when the first gear 67 serving as the driving gear rotates in the direction of the broken line arrow due to the rotation of the motor 29 in the opposite direction (the direction of the broken line arrow in FIG. 5), the second gear 67 constituting the first driving force transmission system 69 rotates. Gear 71. Third gear 72. The fourth gears 73 as binions each rotate in the direction of the dashed arrow, and the rack 7
6 in the direction of the dashed arrow in FIG.

As a result, the rear frame 78 of the main body is inserted through the slide rail 77.
The rear movable frame 75, which is reciprocatably attached to the rear movable frame 75, and the document mounting table 3, which is connected to the rear movable frame 75 through the connecting means 74, move back.

Further, the second driving force transmission system 70 for driving the platen feed roller includes a fifth gear 80 that meshes with the first gear 67 as the driving gear, as shown in FIGS. 5 and 8. , a third timing pulley 82 that interlocks with this fifth gear 80 via a ratchet type one-way clutch 81, and a fourth timing pulley 82 that interlocks with this third timing pulley 82 via a second timing belt 83. A timing pulley 84, a first helical gear 85 integral with the fourth timing pulley 84, a second helical gear 86 meshing with the first helical gear 85, and a second helical gear 86 that meshes with the first helical gear 85. A fifth timing pulley 87 integrated with the helical gear 86
, a sixth timing pulley 89 interlocked with this fifth timing pulley 87 and a third timing belt 88 , and a seventh timing pulley 89 integrated with this sixth timing pulley 89 .
The seventh timing pulley 90 and the fourth timing belt 91 interlock with each other, and the drive shaft 46 of the platen feed roller 46
The eighth timing pulley 92 is fitted into the timing pulley 92a.

When the first gear 67 serving as the drive gear rotates in the direction of the solid line arrow due to the rotation of the motor 29 in the forward direction (the direction of the solid line arrow in FIG. 5), the fifth gear 8 11 is engaged with the first gear 67 as the driving gear.
0 rotates in the direction of the solid line arrow, and this rotational force is transmitted to the third timing pulley 82 via the one-way clutch 81. Additionally, a second timing belt 83. Fourth timing pulley 84. First helical bevel gear 85. second helical gear 86, fifth timing pulley 87. Third timing belt 88, sixth timing pulley 89.
The signal is transmitted to the eighth timing pulley 92 via the seventh timing pulley 90 and the fourth timing belt 91 in this order.

This causes the platen feed roller 46 to move in a predetermined direction (
It will rotate in the direction of the arrow in FIG. At this time, the document placing table 3 is in the forward movement process of scanning the document tray via the first driving force transmission system 69 described above.

In addition, the motor 29 is moved in the reverse direction (
When the first gear 67 as a driving gear rotates in the direction of the broken line arrow in FIG. The movement of the directional clutch 81 is not transmitted to the third timing pulley 82, so that the platen feed roller 46 and the winding-side core 49 do not rotate in the opposite direction.

Further, the fifth gear 80 is a gear biasing means 1 which will be described later.
00, the first gear 67 as a driving gear is elastically engaged with the first gear 67 as a driving gear, and the driving force can be effectively transmitted to the printer unit section 11 which is detachable from the apparatus main body 2. It looks like this. That is, as shown in FIGS. 8 and 9, the printer unit section 11 is provided with an arm 102 that is rotatable about a pivot shaft 101, and the fifth arm 102 is provided at one end of this arm 102. A gear 80 is installed coaxially with a one-way clutch 81, a third timing pulley 82, and the like. The pivot shaft 101 also includes the first helical gear 85 and the fourth helical gear 85.
A timing pulley 84 and the like are provided coaxially.

On the pivot end side of the arm 102, one end is connected to a spring receiving member 1.
03 is connected to the other end of the tension spring 104, and the fifth gear 80 is connected to the housing 1 of the printer unit section 11.
It is in a state where it is constantly biased in the direction of protruding outward from the opening (not shown) formed in 05 (in the direction of the arrow in FIG. 9).

Further, as shown in FIG. 10, a seventh timing pulley 90 is connected to the winding-side core 49 for winding the ink ribbon 41 via a third driving force transmission system 110 for the winding-side core.
rotational force is transmitted.

The third driving force transmission system 110 has the following configuration. That is, a disk 113 having a felt 112 is rotatably provided on a shaft 111 that rotatably supports the sixth and seventh timing pulleys 89, 90. This disk 113 and the end of the seventh timing pulley 90 are connected via a truncated conical compression spring 114, and the seventh timing pulley 90
The rotational force is applied to the disk 113 via this compression spring 114.
At the same time, the felt 112 is constantly biased so as to come into pressure contact with the disk 115 press-fitted into one end of the winding-side core 49.

Thus, the rotational force of the seventh timing pulley 90 is applied to the compression spring 114. The force is transmitted to the disk 113 provided with the felt 112, and is further transmitted to the disk 115 due to the frictional force between the felt 112 and the disk 115.
The winding-side core 49, which is integral with the core 15, is rotated.

The rotational speed of the winding-side core 49 at this time is set to be faster than that of the platen feed roller 46, and even when the winding amount of the ink ribbon 41 of the winding-side core 49 is small and the peripheral speed is slow. The ink ribbon 41 can be wound up without loosening.

At this time, when a predetermined tension is applied to the ink ribbon 41, slippage occurs between the felt 112 and the disk 115, so that rotational force is not transmitted to the winding-side core 49. In FIG. 10, 116 is a support member, 117 is an ink ribbon holder, and 118 is a stopper for preventing the disc 113 from coming off.

Further, as shown in FIGS. 5 and 11, the lens 18 of the optical system 19 of the scanner unit section 10 is connected to the partition frame 2.
It is accommodated in a U-shaped lens storage recess 121 surrounded by ribs 120 protruding from the 0 etc. screws 122, 1.
The pressing is fixed by a leaf spring 123 attached by 22.

In addition, as shown in FIG. 12, the document presser 4 that covers the document placement table 3 has a first fastener 1 formed of a loop-shaped portion.
30a and a second fastener 130 consisting of a hook-shaped portion
It can be attached and detached extremely easily using a flat fastener consisting of a so-called velcro tape (velcro tape) of 13 degrees.

When the original holding plate 4 is removed, the original placing table 3 forms the uppermost surface of the main body 2 of the apparatus. In the case of a document tray larger than the document table 3, as shown in FIG. 13, the image forming apparatus 1 can be used by inverting the image forming apparatus 1 with the document presser 4 removed.

Further, as shown in FIGS. 14 and 15, the rear end frame portion of the frame member 135 of the document placement table 3 is connected to the rear movable frame 75 via the hinge 136, and this document The table 3 is rotatable as shown in FIG. 15. As shown in FIG. 16, when the image forming apparatus 1 is used upside down, it is possible to align the document placement table 3 to a predetermined position on the document tray while visually observing the document tray. Further, a scale 137 is provided around the document mounting table 3, so that alignment with a document matching the size of the recording paper P can be carried out in an extremely convenient manner.

Further, the front edge side (free end side) of the document placement table 3 is slidably supported on the upper surface of the apparatus main body 2 via a support means 138, and the pivot end side is on the side of the document placement table 3. The magnetic body 139 and the rear movable frame 75 provided in
The flatness with respect to the apparatus main body 2 is maintained by suction means 141 consisting of a magnet 140 mounted on a horizontal piece 6 of the device.

Next, the configuration of the control circuit will be explained using FIG. 1. That is, the CPU 190 controls the entire system. The ROMI 91a has an overall operation program and a timing program corresponding to the paper size (A4, A6) in the sub-scanning direction. For example, the count value is changed for A4 size and A6 size (the count value for A4 is large, the count value for A6 is small), and the driving time of the motor 29 is changed.

The ROM 19 lb stores a timing program corresponding to the paper size (A4, A6) in the main scanning direction. For example, for A4 size and A6 size
In the case of size, limits on the range of the output of the CCD sensor 17 handled by the image correction circuit 93 are set.

The photoelectric conversion circuit 192 converts the signal from the CCD sensor 17 into an electrical signal. Image correction circuit 93
The optical conversion circuit 192 performs image correction such as shading correction on the optical conversion output from the photoelectric conversion circuit 192 and outputs a multivalued image signal.

In this image correction circuit 93, the range (main scanning direction) of output from a register (not shown) storing one line of image data supplied from the photoelectric conversion circuit 192 is limited by a programmable counter (not shown) or the like. By doing so, the image signal corresponding to A4 size or A
Image signals corresponding to six sizes are output. The binarization circuit 94 binarizes the multivalued image signal from the image correction circuit 93 and outputs it.

The driver 96 drives the motor 29.

The inverter 97 drives the xenon lamp 15 to turn on. The display driver 98 drives and controls the display state of the display section 7.

The mirror image conversion circuit 193 performs mirror image conversion (horizontal inversion) on the binarized signal for each line from the binarization circuit 94. As a result, the reading signal of the image or character written on the document placement table 3 is converted into a mirror image (left and right reversed).

As shown in FIG. 18, the mirror image conversion circuit 193 has a
RA with storage capacity for lines, or 1728 bits
It is composed of an M197, an up counter 198, and a down counter 199. That is, the binarized signal for one line from the binarization circuit 94 is stored in the RAM 197 in order starting from the 1st bit according to the count value of the up counter 198.
The binarized signal for the line is sent to the drive circuit 95 in order from the 1728th bit according to the count value of the down counter 199.
It is now output to .

The IC card reading section 194 receives the IC card 14 inserted through the insertion slot 13 and reads pattern information stored in the IC card 14. The insertion detector 195 detects that the IC card 14 is inserted into the insertion slot 13. The image synthesis circuit 196 is
The pattern information supplied from the IC card reading section 194 and the binarization circuit 94 or mirror image conversion circuit 193
This is to synthesize the binary signals supplied from the

The CPU 190 detects the IC by the insertion detector 195.
When the selection switch 12 is turned on while the insertion of the card 14 is not detected, a binary signal mirror-converted by the mirror-image conversion circuit 193 is output to the drive circuit 95.

The CPU 190 detects the IC by the insertion detector 195.
When the insertion of the card 14 is detected, select switch 1
2, the binary signal mirror-converted by the mirror-image conversion circuit 193 and the IC card reading section 194
The image synthesis circuit 196 synthesizes the pattern information of the
The result of the synthesis is output to the drive circuit 95.

”2 The CPU 190 detects I by the insertion detector 195.
If the selection switch 12 is not turned on while the insertion of the C card 14 is detected, the binarized signal from the binarization circuit 94 and the pattern information from the two-legged IC card reader 194 are separated. The one-image synthesis circuit 196 performs synthesis, and the synthesis result is output to the drive circuit 95.

Next, the handling and operation of the above configuration will be explained.

First, as shown in FIG. 4, the original D (
For example, A4 size) is held down by the document presser 4, and recording paper P is set in the printer unit section 11.

After setting the number of copies using the number setting button 6, the user presses the copy button 5. At this time, the number of sheets corresponding to the set number of sheets is displayed on the display section 7. As a result, first, the motor 29 of the drive mechanism section 60 once rotates in the reverse direction (rotates in the direction of the broken line arrow in FIG. 5), and the rotational force is applied to the first
The power transmission system 69 (see FIGS. 5 and 7) converts the movement into a double motion of the document table 3, and the document table 3
moves to the start position.

Next, the xenon lamp 15 of the optical system 19 of the scanner unit section 10 is turned on, and the drive mechanism section 60 is turned on.
The motor 29 rotates in the forward direction (in the direction of the solid line arrow in FIG. 5), and its rotational force is transferred to the first power transmission system 69.
Due to the action of , the document placing table 3 is converted into a forward movement, and the document placing table 3 starts forward movement. As a result, the image surface of the document is scanned, and the reflected light is transmitted to the CCD sensor 1.
Guided by 7. The signal from this CCD sensor 17 is photoelectrically converted by a photoelectric conversion circuit 192 and output to an image correction circuit 93. As a result, the image correction circuit 93 performs image correction such as shading correction on the photoelectric conversion output, and
An image signal corresponding to the width of the size is output to the binarization circuit 94. As a result, the binarization circuit 94 and the image correction circuit 93
The image signal is binarized and output to the drive circuit 95.

On the other hand, in the printer unit section 11, the drive mechanism section 6
Second driving force transmission system 7 for platen feed roller 0
0 (see IKt in FIGS. 5 and 8), the platen feed roller 46 rotates, and the recording paper P and ink ribbon 41 are fed at a predetermined speed. A heating element group (not shown) of the heating section 45a selectively generates heat, and recording, that is, copying, is performed on the recording paper P using an image signal line by line corresponding to the width of the A4 size.

Note that the recording paper P and the ink ribbon 41 are separated by a guide shaft 50 serving as a separating means, and the recording paper P
is discharged from the paper discharge port 59, and the ink ribbon 41 is wound around the rotating winding-side core 49 via the third power transmission system 110 for the winding-side core (see FIGS. 5 and 10). taken.

In this way, when the copying of the document, that is, the scanning corresponding to the length of A4 size paper is completed, the xenon lamp 1
5 goes out, the motor 29 of the drive mechanism section 60 rotates in the opposite direction, and the document table 3 moves backward to return to the home position where it overlaps the main body 2 of the apparatus.

Further, as shown in FIG. 19, with an image or text written (drawn) on the document table 3 using a black marker M, the document presser 4 is closed and the recording paper is P is set in the printer unit section 11.

After setting the number of copies using the number setting button 6, the user instructs mirror conversion using the selection switch 12, and presses the copy button 5. At this time, the number of sheets corresponding to the set number of sheets is displayed on the display section 7. As a result, first, the drive mechanism section 6
0 motor 29 once rotates in the reverse direction (rotates in the direction of the dashed arrow in FIG. 5), and the rotational force is transferred to the first power transmission system 69 for the document placement table (see FIGS. 5 and 7). This is converted into a backward movement of the original table 3, and the original table 3 moves to the start position.

Next, the xenon lamp 15 of the optical system 19 of the scanner unit section 10 is turned on, and the drive mechanism section 60 is turned on.
The motor 29 rotates in the forward direction (in the direction of the solid line arrow in FIG. 5), and its rotational force is transmitted to the first power transmission system 69.
Due to the action of , the document placing table 3 is converted into a forward movement, and the document placing table 3 starts forward movement. As a result, the document placement table 3
The image or text written above is scanned and
The reflected light is guided to the CCD sensor 17. This CCD
The signal from the sensor 17 is photoelectrically converted by a photoelectric conversion circuit 192 and output to an image correction circuit 93. As a result, the image correction circuit 93 performs image correction such as shading correction on the converted output of the light i, and outputs an image signal corresponding to the width of A4 size to the binarization circuit 94. Thereby, the binarization circuit 94 binarizes the image signal from the image correction circuit 93 and outputs it. The binarized signal from the binarization circuit 94 is mirror-converted by the mirror-image conversion circuit 193, and the drive circuit 9
5.

On the other hand, in the printer unit section 11, the platen feed roller 46 is rotated by the second driving force transmission system 70 (see FIGS. 5 and 8) for the platen feed roller of the drive unit 1M section 60, and the recording paper P and ink ribbon 4
1 is sent at a predetermined speed, and the drive circuit 95
The heating element group (
(not shown) selectively generates heat, and the A4
Recording, that is, copying, is performed using image signals that are mirror-imaged for each line corresponding to the width of the size.

In addition, while reading the original placed on the original placing table 3 as described above, the IC card 1 is inserted through the insertion slot 13.
4 is inserted, the insertion is detected by the insertion detector 195, and this detection signal is output to the CPU 190. Thereby, the CPU 190 synthesizes the binary signal from the binarization circuit 94 and the pattern information from the IC card reading section 194 in the image synthesis circuit 196, and outputs the synthesis result to the drive circuit 95. . Thereafter, it operates in the same manner as above.

As a result, the image signal read from the original and the IC card 1
An image combined with the pattern information from 4 is printed out.

In addition, while reading the images or characters written on the document table 3 as described above, the IC card can be inserted from the insertion slot 13.
When the card 14 is inserted, the insertion is detected by the insertion detector 1.
95 , and this detection signal is output to the CPU 190 . Thereby, the CPU 190 receives the binary signal from the mirror image conversion circuit 193 and the IC card reading section 194.
The image synthesis circuit 196 synthesizes the pattern information from
The result of the synthesis is output to the drive circuit 95. Thereafter, it operates in the same manner as above.

As a result, an image obtained by combining a mirror image of the image signal read from the document table 3 with the pattern information from the IC card 14 is printed out.

In addition, if the document tray is thick such as a book, the document presser 4 should be left open as shown in FIG. 3, or the document presser 4 should be left open as shown in FIG. It will be used with 4 removed.

In addition, when reading a part of a document plate larger than the size of the document table 3, first remove the document presser 4 as shown in FIG. The original is placed on the original plate as shown in the figure, and the original plate is copied in this state.

At this time, as shown in FIG. 17, the document placement table 3 remains in close contact with the document surface, and the apparatus main body 2 side is moved. Therefore, copying can be performed without folding the document sheet.

Therefore, compared to the conventional method of folding and setting a document tray, this work is extremely easy, and it also prevents damage to the document tray and poor reading due to loss of adhesion between the document tray and the document table 3. It is possible to prevent such things as inviting people.

In addition, in such a reverse use state, alignment with the document tray can be easily performed by visually observing from the back side of the document placement table 3 as shown in FIG.
By using the scale 137, alignment corresponding to the size of the recording paper P becomes easy.

As mentioned above, when reading images or characters written in black marker on the manuscript table, the
Since the digitized signal is converted into a mirror image, the characters or images written on the document table can be read accurately without being turned over, and the degree of freedom in reading can be improved.

In addition, no paper is required to read images or characters, and after use, it can be wiped off for normal reading.

In the above embodiment, the case where an image or text is written on the document table with a black marker and the document presser is closed is explained, but the present invention is not limited to this. is written and the document presser is released, the same operation as described above will occur. In this case, a black-and-white conversion circuit is required in addition to mirror image conversion, but the advantage is that the platen cover does not get dirty.

Further, although the case has been described in which images or characters are written on the document table with a black marker, the present invention is not limited to this, and may be written on the platen inside the document presser.

[Effects of the Invention] As explained above, according to the present invention, there is provided a manuscript reading device that can accurately read characters or images written on a manuscript table and can improve the degree of freedom of reading. Can be provided.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a block diagram schematically showing the overall structure, FIG. 2 is a perspective view of the external appearance, and FIG. 3 is a perspective view of the document holder in an open state. , FIG. 4 is a schematic front view showing the internal mechanism, FIG. 5 is a schematic plan view showing the internal mechanism, and FIG. 6 is a view of the drive source side configuration of the drive mechanism as seen from the rear side. FIG. 7 is a schematic side view showing a driving force transmission system for the document mounting table in the drive mechanism section, FIG. 8 is a schematic side view showing a driving force transmission system for the platen feed roller in the drive mechanism section, and FIG. The figure is for platen feed roller.
FIG. 10 is a schematic vertical sectional side view showing the driving force transmission system for the winding core, and FIG. 11 shows the state in which the lens is attached. 12 is an exploded perspective view showing the state in which the document holder is separated from the main body of the apparatus, FIG. 13 is a view showing the state in which it is used after being inverted, and FIGS. 14 and 15 are the document mounting table. Fig. 16 is a perspective view showing the alignment state with the original when used in reverse mode, Fig. 17 is an explanatory diagram schematically showing the operating state when used in reverse mode, and Fig. 18 is a schematic side view showing the installation state. FIG. 19 is a block diagram showing the configuration of the mirror image conversion circuit, and FIG. 19 is a diagram for explaining an example in which images or characters are written on the document table with a black marker. 2... Apparatus main body, 3... Document placement table, 4... Document presser, 4a... Platen, 7... Display unit, 10...
...Scanner unit section (reading means), 11...Printer unit section, 12...Selection switch, 17...
CCD sensor, 19...Optical system, D...Manuscript, 93
...Image correction circuit, 94...Binarization circuit, 98...
・Display driver, 190...CPU, 193...
Mirror image conversion circuit, M... marker. Applicant's Representative Patent Attorney Takehiko Suzue Figure 1 Figure 9 Figure 10 Figure 11 Figure 12 Figure 16 Figure 18 Figure 19

Claims (1)

[Claims] A document placing table on which an original can be placed and images or characters can be written thereon; a reading means for performing reading optically; a reading instruction means for instructing the reading of images or characters written on the document mounting table; a mirror image conversion means for converting a reading result by the reading means into a mirror image; and the reading instruction means. output means for outputting a reading result mirrored by the mirror image converting means when an instruction is given by the mirror image converting means, and outputting a reading result of the reading means when no instruction is given by the reading instructing means; A document reading device characterized by comprising: