JPH0754409B2 - Printer with copier - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a printer with a copying apparatus.

Conventional technology Conventionally, a copying machine that can be used as a printer,
There is a printer connected to the image scanner and adapted to print based on the read data of the image scanner.

Problems to be Solved by the Invention The former is one in which a printing unit and a reading device are built in a common housing. In addition to a drive mechanism that conveys paper for printing, the image reading unit and the document are relatively Therefore, a driving mechanism for moving the structure must be provided, which complicates the structure and increases the size.

The latter has the drawback that the user must purchase an image scanner in addition to the printer, which increases the financial burden on the user.

Means for Solving the Problems A paper feed section and a printing section are provided in a common paper path through which an original and a sheet are conveyed, and an output side is directly or indirectly connected to the printing section to optically scan an image of the original. An image reading section for reading the image is provided in the common paper passage through which the original and the paper are conveyed.

As a result, the image reading unit reads the image of the original document while the document is fed along the paper path by the paper feeding unit, and then the image reading unit is read while the paper is fed by the paper feeding unit along the paper path. An image is printed by the printing unit based on the read data and the original and the paper are conveyed along the common paper path by the common paper feeding unit, so that the structure is downsized and simplified.

Embodiment An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a housing, and the housing 1 is provided with a printing unit 2. The printing unit 2 includes a rotatable photoconductor 3 driven by a motor (not shown), a charging charger 4 for applying an electric charge to the outer periphery of the photoconductor 3, and a beam beam to the photoconductor 3 based on a print signal. Developing unit 9 in which a magnet roller 8 is attached to a toner box 7 containing toner 6
A transfer charger 10, a pair of heat fixing rollers 11,
A toner receiver 13 that holds a blade 12 that contacts the outer circumference of the photoconductor 3, and a lamp that irradiates a light beam on the entire outer circumference of the photoconductor 3.
Consists of 14.

Further, a cassette case 16 for holding the sheets 15 in a stacked state is detachably accommodated in the lower part of the housing 1, and a manual insertion portion 17 for inserting the sheets one by one is provided on the front surface. And
A paper passage 18 that starts at the exit of the cassette case 15 and joins the end of the manual insertion portion 17 on the way, passes between the photoconductor 3 and the transfer charger 10, and further passes between the heating and fixing roller 11. Is provided. Further, paper feed portions 19, 20, 21, 22, 23, 24 are arranged along the paper path 18. The paper feeding unit 19 is a roller driven by a motor, and the paper 15 of the uppermost layer in the cassette case 16 is pushed up from below and comes into contact with the paper feeding unit 19. Other paper feeder 20,21,22,23,
24 is composed of a roller driven by a motor and a roller elastically contacting the roller.

Further, the paper passage 18 is provided with an image reading unit 25 located between the paper feeding units 21 and 22. This image reading unit 25
Is an LED 26 that illuminates a document that passes through the paper path 18, a lens 27 that transmits light reflected from the document, and a CCD image sensor 2
It consists of eight. Further, the paper passage 18 is provided with a detector 29 located between the image reading unit 25 and the paper feeding unit 21 and a detector 30 located near the heat fixing roller 11.

In such a configuration, when the mode switch (not shown) on the front surface of the housing 1 is set to the copy mode and a document is inserted from the manual insertion section 17, the document is fed by the paper feeding sections 21 and 22 to the photoconductor 3
Sent to. At this time, the detector 29 detects the original,
The image reading unit 25 starts its operation by this detection signal. That is, the LED 26 illuminates the original, and the lens 27 forms an image of the original on the CCD image sensor 28. The output of the CCD image sensor 28 is stored in a memory (not shown) connected to a control circuit (not shown) of the exposure section 5. Further, the document is sent by the paper feeding units 21, 22, 23, 24 and discharged onto the tray 31. In this discharging process, the detector 30 detects the passage of the document, and the detection signal increases the current-carrying capacity to the heater in the heat fixing roller 11, so that the temperature of the heat fixing roller 11 rises to 18
It is raised to about 0 degrees. On the other hand, when the detector 29 detects a document and a predetermined time has passed, the paper feed unit 19 rotates to pull out the paper 15 in the cassette case 16. This paper 15 is the paper feed section 20, 21,
When supplied to the photoconductor 3 by the detector 22, the detector 29 causes the paper 15
Is detected, and the printing unit 2 starts its operation by this detection signal. That is, the photosensitive member 3 starts to rotate, and during this one rotation, the charging charger 4 applies an electric charge to the outer periphery of the photosensitive member 3 to form a charging layer, and the exposure is performed based on the output of the memory storing the read data of the original. The section 5 scans the charged layer with a beam of light to form an electrostatic latent image, the developing device 9 develops this electrostatic latent image, the transfer charger 10 transfers the toner image onto the paper 15, and the heat fixing roller 11 Fixes the transferred image on paper 15 and
24 ejects paper 15 to tray 31. On the other hand, the photoconductor 3
The blade 12 scrapes off the residual toner adhered to the toner receiver 13 and the lamp 14 exposes the entire outer peripheral surface of the photoconductor 3 to erase the electrostatic latent image.

In this way, the original and the paper 15 can be fed along the common paper path 18 by the common paper feed portions 21, 22, 23, 24, which simplifies the structure and improves the internal structure. The space can be reduced and the size can be reduced.

In addition, by storing the data of the image reading unit 25 in a memory and inputting the data of an external input device such as a personal computer into the memory, a usage mode in which other image information is combined with the content of the original to be printed out is provided. You can also choose. Further, by installing the image reading unit 25 on the downstream side of the photoconductor 3, the data of the original document is read downstream of the paper passage 18, and the read signal is directly input to the exposure unit 5 to simultaneously print on the succeeding paper 15. can do. In this case, no memory is needed.

EFFECTS OF THE INVENTION Since the present invention is configured as described above, the image of the original is read by the image reading unit in the process of feeding the original along the paper path by the paper feeding unit, and then the paper is placed along the paper path. An image can be printed by the printing unit based on the read data of the image reading unit in the process of feeding by the feeding unit, and the original and the paper can be conveyed along the common paper path by the common paper feeding unit. Therefore, there is an effect that the structure can be downsized and simplified.

[Brief description of drawings]

The drawing is a vertical side view showing an embodiment of the present invention. 2 ... Printing section, 15 ... Paper, 18 ... Paper path, 19-24 ...
… Paper feed unit, 25 …… Image reading unit

Claims (2)

[Claims] 1. A paper feed section and a printing section are provided in a common paper path for conveying an original and a sheet, and an output side is directly or indirectly connected to the printing section to optically read an image of the original. A printer with a copying machine, wherein an image reading unit is provided in a common paper path through which a document and paper are conveyed. 2. A printer with a copying apparatus according to claim 1, wherein an image reading section is provided in a sheet passage on the downstream side of the printing section.