JP2003530734A - Portable scanner, printer, facsimile, and copier - Google Patents

Abstract

(57) [Abstract] The present invention provides a portable scanner, printer, facsimile, and copier that is light in weight and slim in design and consumes little power. The device has a portable practical use as a facsimile and copier with the additional feature of interfacing with a host computer for scanning and sending information to the host computer and for printing information from the host computer. . The device has a cam mechanism (6) that allows either the scanning function or the printing function to be released. The device also includes a rotating arm mechanism (50) that provides stability during operation and is relatively unobtrusive and unobtrusive when the device is not in use.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to portable scanners, printers, facsimile machines, and copiers, and more specifically, papers to be scanned, printed, faxed, and / or copied through a machine. Device having only one drive roller for moving the.

BACKGROUND OF THE INVENTION The device has an elongated shape that is unstable in upright mode of operation without the aid of a rotating arm that pivots on both sides and, in operation, acts as a leg to support the device. ing.
These arms are locked in an open position to provide the required stability during operation and in a closed position to minimize space occupied during transport and storage. In the closed position, the arm follows the contours and contours of the end of the device and forms a body-shaped extension without presenting prominent protrusions.

Conventional facsimile components and communication methods are utilized by the present invention in combination with the new interface and facsimile methods introduced in this device. Parts specific to the present invention are found in US Pat. No. 5,420,697, inventor Raja. S.
A single drive roller is used for scanning, printing, faxing and copying, as disclosed in the prior art by Tsuri. In the present invention, the object to be scanned and the print medium move in opposite directions on opposite sides of a single drive roller along planes that are parallel to each other, so that the scanning and printing operations are similar to those found in conventional systems. In this case, it is not necessary to invert multiple drive rollers and motors, or the main drive roller. It may be in the form of a sheet or a roll, but since the thermal printing medium is stored outside, a compact and lightweight design and portability can be realized.

One object of the present invention is to provide a portable means for scanning an original of interest into a host computer, and a portable thermal means for recording the output from the host computer, The computer and the device according to the invention together have a transmission / reception capability for facsimile transmission.

Another object of the present invention is to provide a portable means for faxing and copying documents with external media feed and storage. The outer surface of the main body is provided with contoured protrusions for accurately positioning and guiding the external thermal paper roll, and due to the design and orientation characteristics of the thermal paper, without the need for additional fixing means. The thermal paper roll is adapted to rotate properly along the body of the device.

(Summary of the Invention) Generally speaking, according to the present invention, a portable scanner, a printer, a facsimile, and a copying machine, which are lightweight and slim in design, and have low power consumption, are constructed.
This apparatus has a portable practical use as a facsimile machine and a copying machine, and further interfaces with the host computer to scan and send the information to the host computer and print the information from the host computer. Features are added. The device is equipped with a cam mechanism that allows either the scanning function or the printing function to be released. The device also includes a rotating arm mechanism to provide stability during operation.

Detailed Description of the Preferred Embodiments The present invention will be better understood, and its numerous objects and advantages made apparent to those skilled in the art by referencing the accompanying drawings. .

FIG. 1 shows the layout of the main components of the portable scanner, printer, facsimile, and copier of the present invention. There is a single drive roller 1 with a thermal print head 2 on one side and a scan head 3 on the opposite side. The drive roller is driven by the step motor 4 via the gear system 5 as a means for moving the print medium and the original material to be scanned, depending on the position of the cam mechanism 6, either simultaneously or at different times. The moving directions of the print medium and the original to be scanned are opposite to each other. A pressing or spring device 7 is arranged to exert a force that presses the print head and the scan head against the drive roller.

FIG. 2 shows that the scanning head 3 and the thermal printing head 2 exert pressure on both sides of the drive roller 1 via the pressing device 7, and the cam 6 is disengaged. . The print medium 8 is sandwiched between the roller and the print head, and moves laterally along a plane parallel to the original 9 to be scanned, which is sandwiched between the roller and the scan head. Together they move in opposite directions on opposite sides of the roller.
This simplified drive system significantly reduces the torque and power requirements of the device and, more importantly, occupies less space. In this mode, the device effectively performs the scanning and printing functions simultaneously as a copier. The print head prints one row of dots parallel to the roller at a time, and the scan head also senses one linear array of dots parallel to the roller at one time.

In FIG. 3, the cam 6 is shown in the first of its two rotational positions, in which the scanning head 3 is pushed away from the fixed drive roller 1, The print head 2 can press the print medium 8 against the rollers to sandwich it. The scanning head 3 is seated along the first plane of the cam, does not generate a moment around the pivot 15 of the cam, and is stable at this position. In this "print only" mode, the scan head exerts no frictional resistance on the rollers,
Torque requirements are significantly relaxed. In this mode, the scan head is retracted, so that the original to be scanned, which has been sandwiched between the scan head and the roller, is released.
The pressing device 7 is employed to press both the print head and the scanning head towards the roller on opposite sides of the roller.

Next, FIG. 4 shows the state in which the cam 6 is in the second rotation position opposite to the first position, and the print head 2 is pushed away from the fixed drive roller 1 to cause the scan head 3 to move.
Is configured to press the original 9 to be scanned against the roller so as to be sandwiched. The print head sits along the second plane of the cam and does not generate a moment about the cam pivot 15 and is stable in this position. In this "scan only" mode, the printhead exerts no frictional resistance on the rollers, which greatly reduces the torque requirements. In this mode, the print head retracts, so that the paper that has been sandwiched between the roller and the print head can be easily taken out. The pressing device 7 is employed to press both the print head and the scanning head towards the roller on opposite sides of the roller.

Now referring to FIG. 5, this is a “print only” mode, with the cam 6 engaged and applying force to the scan head 3 to compress its urging device 7. with this,
A small gap is created between the scanning head 3 and the fixed drive roller 1, and the print medium 8 sandwiched between the drive roller and the print head 2 can be driven by the scan head 3 without applying frictional resistance to the roller. Like The pressing device 7 applies a uniform pressure on the print head towards the drive roller so that the darkness of the printed characters remains constant and to prevent wrinkling of the thermal print medium. The print medium moves in a set direction, which is the same direction as when printing in the copy or facsimile receive mode and is opposite to the original document to be scanned. With the device in this mode, a facsimile reception can be printed, or the electronic hardware and software of the device can be used to print files directly from the interfaced host computer system 10.

FIG. 6 is a “scan only” mode with cam 6 engaged and print head 2
Is applied to compress the pressing device 7, and the print head 2 and the fixed drive roller 1 are compressed.
Creates a small gap between and. The original 9 to be scanned, which is sandwiched between the scanning head 3 and the driving roller 1, can be moved without frictional resistance being applied to the roller by the print head. The pressing device 7 applies a uniform pressure on the scanning head towards the drive roller in order to achieve a consistent scanning and to prevent wrinkling of the original to be scanned. The original to be scanned moves in a set direction, which is the same direction as when scanning in the copy or facsimile transmission mode, and opposite the direction of the print medium. With the device in this mode, it is possible to simultaneously scan and send a fax or use the electronic hardware and software of the device to scan and send directly to the host computer system 10.

Now referring to FIG. 7, this is a “scan only” mode, with the cam 6 in the engaged state, applying force to the print head 2 and compressing the pressing device 7 to move the print head A small gap is created between the fixed drive roller 1. Since the pressing device 7 applies a uniform pressure on the scan head toward the drive roller, the original 9 to be scanned sandwiched between the scan head 3 and the drive roller 1 is rubbed against the roller by the print head. You can move without hanging. In this particular application, the original data to be scanned is processed via the motherboard 11 of the device and sent directly to the host computer 12.

FIG. 8 also shows the same “scan only” mode and configuration as in FIG. 7, but this device scans the original 9 and at the same time processes it on the onboard motherboard 11 and via the telephone line 13. By sending, it can be used as a facsimile device for sending a document.

Referring now to FIG. 9, this is in a “print only” mode, with cam 6 engaged and applying force to scan head 3 to compress its pusher 7. with this,
A small gap is created between the scanning head and the fixed drive roller 1, and the print medium 8 sandwiched between the drive roller and the print head 2 can be driven without frictional resistance being applied to the roller by the scan head. become. The pressing device 7 applies a uniform pressure on the print head towards the drive roller so that the darkness of the printed characters remains constant and to prevent wrinkling of the thermal print medium. The print medium moves in a set direction, which is the same direction as when printing in copy or facsimile receive mode, and is opposite to the direction of the original to be scanned. With the device in this mode, it is possible to print a facsimile reception, or use the electronic hardware and software 11 of the device to print a file directly from the interfaced host computer system 10.

Although FIG. 10 also shows the same “print only” mode and configuration as in FIG. 9, this apparatus simultaneously receives and prints a document processed through the onboard motherboard 11 and transmitted from the telephone line 13. It can be used as a facsimile machine.

Next, referring to FIG. 11, in this drawing, the scanning head 3 and the thermal printing head 2 apply force to the opposite sides of the fixed drive roller 1 via pressing devices, and the cam 14 engages. It is shown in the released state. The print medium 8 sandwiched between the roller and the print head moves laterally along a plane parallel to the original 9 to be scanned, which is sandwiched between the roller and the scan head. As they rotate, they move in opposite directions on opposite sides of the roller. The illustrated cam mechanism has a single plane that is used to press the scan head and print head at different times and away from the drive roller. It can be implemented in various functions.

FIG. 12 shows the state in which the cam 14 is in the first of its two rotational positions, in which the print head 2 is pushed away from the fixed roller 1 and the scanning head 2 is pushed. 3, the original 9 to be scanned is pressed against the rollers to be sandwiched. The print head sits along the plane of only one of the cams and the pivot 1 of the cam
No moment is generated around 6 and it is stabilized at this position. In this "scan only" mode, the print head exerts no frictional resistance on the rollers, thus significantly reducing torque requirements. In this mode, the print head retracts from the roller, so that the paper that has been sandwiched between the roller and the print head can be easily taken out. The pressing device 7 is employed to press both the print head and the scanning head towards the roller on opposite sides of the roller.

FIG. 13 shows the state in which the cam 14 is in the second rotational position opposite to the first position. In this state, the scanning head 13 is pushed away from the fixed roller 1 and the print head 13 is pressed. 2 can press the print medium 8 against the rollers to sandwich it. The scan head sits along the plane of only one of the cams and does not generate a moment about the cam pivot 16 and stabilizes in this position. In this "print only" mode, the scan head exerts no frictional resistance on the rollers,
Torque requirements are significantly relaxed. In this mode, the scanning head retracts from the roller, so that a document that has been sandwiched between the roller and the scanning head can be easily taken out. The pressing device 7 is employed to press both the print head and the scanning head towards the roller on opposite sides of the roller.

FIG. 14 is a top view of the entire arrangement of the present device, showing the arm 50 in the closed position with respect to the main body 20. When the arm is locked in the closed position,
An extension is formed along the contour of the main body, which is indistinguishable from the main body. This device
When the arm is in the closed position, it is in an unstable state due to its center of gravity position, and when it is in the upright operating position, it easily falls. The entry key 30 and the function display 40 are invisible from above, and the print medium guide 55 projects from the main body. The arm is provided with hinges 60 for axial rotation at both ends of the body.

Next, FIG. 15 shows the state of the device of FIG. 14 in which the arm 50 is in the open position. The arm, when locked in the open position, provides the necessary stability for a device seated on a flat surface to prevent it from tipping over during operation. With the arms open, the device is tilted at a certain angle and is no longer upright in the vertical direction so that the print medium and the document to be scanned are easily fed. The print media guide 55 is shown as providing a means for locating the media roll 70 such that the roll has a longitudinal axis X- when the media traverses the device perpendicularly to the longitudinal axis X-X. It also plays the role of preventing sliding parallel to X.

FIG. 16 shows a right side view of the device of the present invention, in which the arm 50 is in the closed position according to the shape of the main body 20 and is locked in that position by the locking means 80. The means also acts as a limit stop when closing the arm. Hinge 6
The 0 is integral with the arm and rotates around a hole in the body. Although locking devices 90a and 90b for the open position of the arms are shown, they act as limit stop devices when opening the arms.

FIG. 17 is an enlarged cross-sectional view of the locking means for the body 20 of the arm 50, taken along the line BB. The small projection 100 engages with the fitting cavity 110 to form a locking means so that it can be snapped into and out of the locked position without applying extra force. The angles at which the arms and the body abut each other in the closed position are substantially the same, forming a limit stop when the arms are closed.

Next, FIG. 18 is also a right side view of the device of the present invention, showing the arm 50 of FIG. 15 in the open and locked position. When the apparatus is placed on a moderate horizontal surface 120, the apparatus moves along the support substrate having a wider center of gravity, so that the apparatus can stably perform all operation functions. The arm 50 rotates about the hinge 60 to create sufficient space between the bottom of the body 20 and the horizontal surface 120 to accommodate the thermal print media roll 70. The guide 55 correctly positions the print medium parallel to the drive roller 1, which also functions as a print roller, with respect to the print head 2 which prints one row of dots at a time. The document 9 to be scanned traverses the scanning head 3 on the opposite side of the drive roller 1 parallel to and opposite to the print medium 8.
Scans the document one dot at a time in a linear array. Lock device 90a / 90b
Locks the arm 50 in the open position and stops the arm from opening further.
The roll 70 of print medium is pulled from above by the force of the drive roller 1 and is constantly rotated in the direction of the main body 20, so that it is not necessary to provide an additional fixing device.
At all times during printing, the print medium is kept tightly pressed against the body, so that the guides 55 prevent the roll from slipping in the direction perpendicular to the direction of movement of the print medium and place it in the print head. It is designed so that it can be positioned correctly.

FIG. 19 shows an enlarged cross-sectional view of the limit stop protrusion 80 arranged at the bottom corner of the main body 20. The stop device 80 prevents the arm from rotating past the closed position, which essentially matches the shape of the end face of the body. The fitting cavity 110 is at a stop position in the main body as a part of the locking device, and the fitting projections arranged on the respective arms are fitted into the cavity.

FIG. 20 is a right side view of the body 20 of the present invention with the arms removed, showing a pivot hole 170 for the hinge 60, which is provided integrally with each arm. The hinges are inserted and designed to snap into place.
The limit stop projection 80 and the lock cavity 110 are both integral parts of the main body 20.

FIG. 21 shows the arm 50 of the present invention removed from the body. The hinge 60 is composed of curved segments separated by a narrow gap provided on the circumference. These gaps are provided to bend the hinge inwardly when it is inserted into the pivot hole 170. The protrusion 100 forming part of the locking device is an integral part of the arm and engages the mating cavity of the limit stop on the body. The angle of surface 180 on the arm is such that it fits snugly with the corresponding limit stop on the body, creating continuity between the parts and arming the limit stop on the body in both the open and closed positions. Fits neatly and has a beautiful appearance.

FIG. 22 shows an enlarged view of the arm protrusion 100 which forms part of the locking device as an integral part of the arm 50. These lugs engage the locking cavities 110 of the body to lock the arm in place and also easily unlock it without extra force.

FIG. 23 is a top view of the hinge 60 located on the arm 50, showing a split shaft 190 that fits into the pivot hole 170 of the body shown in FIG. A flat surface 200 protruding from the outer circumference of the split shaft is provided to allow the arm to lock in place after it is inserted into the hinge and still rotate about the pivot hole. Since the diameter of the surface 200 is larger than the diameter of the pivot hole 170, a tapered surface 210 is provided to facilitate pushing the hinge into the hole,
The hinge segment bends inwardly as it is inserted into the hole. As the surface 200 passes through the inner wall of the body, the hinge segments return to their straight, original position, locking the arm onto the body for pivotal rotation about the hinge.

It will be understood that the above-mentioned objects have been clarified by the above description and can be effectively achieved. Further, since certain modifications can be made to the above-described configuration without departing from the spirit and scope of the present invention, all the contents included in the above description and shown in the accompanying drawings are for the purpose of description. It should be taken and not interpreted in a limiting sense.

It is to be understood that by the content of the above claims, it is intended to cover all the general and specific features of the present invention described herein, and the entire description of the scope of the present invention is defined by the terminology. It should be understood that this is the case as a problem.

[Brief description of drawings]

[Figure 1]   1 is a schematic diagram showing the basic arrangement of the main components according to the present invention.

FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, showing the present apparatus in a state where scanning and printing can be performed simultaneously.

[Figure 3]   FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1 showing the apparatus in a state where only printing is possible.

[Figure 4] FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, showing the device in a state where only scanning is possible.

5 shows the device in “print” mode and receiving a fax transmission, FIG.
It is sectional drawing which follows the A line.

6 is a cross-sectional view along line AA of FIG. 1 showing the device during scanning and faxing.

FIG. 7 is a schematic diagram showing the interface between the apparatus and the host computer, which enables the original to be scanned and transmitted to the host computer according to the present invention.

FIG. 8 is a schematic diagram showing the present device functioning as a facsimile machine for scanning an original and transmitting it via a telephone line via its own electronic circuit according to the invention.

FIG. 9 is a schematic diagram showing the interface between the device and a host computer system that enables printing of files according to the present invention.

FIG. 10 is a schematic diagram showing the present device functioning as a facsimile machine that receives a facsimile via a telephone line and prints at the same time according to the present invention.

11 is a cross-sectional view taken along line AA of FIG. 1 showing one embodiment of a cam mechanism and the interaction of the cam mechanism with the scan head and print head.

12 is a cross-sectional view taken along the line AA of FIG. 1, showing another embodiment of the cam mechanism and the interaction of the cam mechanism with the scan head and print head.

13 is a cross-sectional view taken along line AA of FIG. 1, showing a cam mechanism and yet another embodiment of the interaction of the cam mechanism with the scan head and print head.

FIG. 14 is a top view of the position of the arm locked in the closed position and the print media guide as disclosed in the present invention.

15 is a top view of the apparatus of FIG. 14 with the arms locked in the open position and the print media roll positioned between the guides in accordance with the present invention.

FIG. 16 is a right side view taken along the line AA of FIG. 14, showing a state in which the arms are closed to facilitate storage and carrying according to the present invention.

FIG. 17 is an enlarged cross-sectional view taken along the line BB of FIG. 16 showing a state where the arm lock device is closed according to the present invention.

FIG. 18 shows the device according to the invention with the arms locked in the open position to ensure stability when placed on a flat surface, the supply path for the print medium and the document to be scanned and the printing and FIG. 16 is a right side view taken along the line C-C of FIG. 15, showing the arrangement of the scanning components.

19 is a view showing a state where the arm lock device according to the present invention is in an open state, D- in FIG. 18;
It is sectional drawing which follows the D line.

FIG. 20 is a right side view of the end plate of the device according to the present invention with the arms removed.

FIG. 21   FIG. 6 shows an arm removed from the device according to the invention.

22 is a cross-sectional view taken along the line EE of FIG. 21, showing the projection of the arm locking mechanism according to the present invention.

FIG. 23   FIG. 22 is a view taken along the line FF of FIG. 21 showing the axis rotating means of the arm according to the present invention.

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Claims (15)

[Claims] 1. A portable device for scanning, printing, faxing, and copying in which a substantially cylindrical roller having a longitudinally running axis, and on one side of the roller, substantially the roller. A thermal printing head disposed in continuous contact with each other, wherein a plurality of rows of dots in a direction substantially parallel to the axis of the roller are provided between the roller of the apparatus and the thermal printing head. A thermal printing head capable of printing on a paper surface passing through in a first direction, a scanning head in substantial continuous contact with a substantially opposite side of said roller, said axis of said roller A linear array of dots arranged substantially parallel to and passing through a second direction substantially opposite the first direction between the roller of the device and the scanning head. To sense A scanning head and a release mechanism including a rotatable cam mechanism arranged at one end of the roller, wherein the cam mechanism is selectively rotatable around the axis of the roller, When selectively rotated, the cam (a) presses against a portion of the thermal print head to move the thermal print head away from the roller, the print head no longer being in substantially continuous contact with the roller. Or (b) pressing a portion of the scanning head away from the roller so that the scanning head is no longer in substantially continuous contact with the roller. A portable device comprising a releasing mechanism capable of bending down. 2. The scanning and printing according to claim 1, further comprising a housing partially surrounding a portion of the roller, the thermal printing head, and the scanning head. A portable device for faxing, faxing and copying. 3. The thermal print head between the housing for applying pressure to the back of the thermal print head to cause the substantially continuous contact between the thermal print head and the roller. The portable device for scanning, printing, faxing, and copying according to claim 2, further comprising a first pressure mechanism located at. 4. A portable device for scanning, printing, faxing and copying according to claim 3, characterized in that said first pressure mechanism comprises at least one spring. . 5. Positioned between the housing and the scan head for applying pressure to the back of the scan head to cause the substantially continuous contact between the scan head and the roller. A portable device for scanning, printing, faxing, copying according to claim 3, further comprising a second pressure mechanism. 6. Portable device for scanning, printing, faxing and copying according to claim 5, characterized in that said second pressure mechanism comprises at least one spring. . 7. The portable device for scanning, printing, faxing and copying according to claim 1, further comprising a motor for driving the rotation of the roller. 8. The input / output fax port of claim 1, further comprising an input / output fax port for allowing the device to interface with a standard telephone line for receiving / transmitting facsimiles. A portable device for scanning, printing, faxing and copying. 9. Portable for scanning, printing, faxing and copying according to claim 8, further comprising a fax circuit board for processing and storing fax information. Device. 10. An input / output computer port for enabling the device to interface with the computer for receiving information from the computer for printing or for transmitting scanned information to the computer. A portable device for scanning, printing, faxing and copying according to claim 1, characterized in that it comprises. 11. The scanning according to claim 10, further comprising a circuit board for processing and storing the received information and the scanned information.
A portable device for printing, faxing and copying. 12. In a portable device for scanning, printing, faxing, copying, a substantially cylindrical roller having a longitudinally running axis, and on one side of the roller, substantially the roller. A thermal printing head disposed in continuous contact with each other, wherein a plurality of rows of dots in a direction substantially parallel to the axis of the roller are provided between the roller of the apparatus and the thermal printing head. A thermal printing head capable of printing on a paper surface passing through in a first direction, a scanning head in substantial continuous contact with a substantially opposite side of said roller, said axis of said roller A linear array of dots arranged substantially parallel to and passing through a second direction substantially opposite the first direction between the roller of the device and the scanning head. To sense A scanning head, a roller, the thermal printing head, a housing partially surrounding a portion of the scanning head, an arm disposed on the housing at a first end of the device, Portable device comprising two selectively rotatable support arms comprising an arm disposed on the housing at a second opposite end of the device. 13. The support arm is selectively rotatable about an axis passing through the housing, the axis of the housing being substantially parallel to the axis of the roller but laterally offset. Scanning according to claim 12, characterized in that
A portable device for printing, faxing and copying. 14. Each of the support arms is configured to support the device during operation.
14. A portable device for scanning, printing, faxing and copying according to claim 13, characterized in that it has a first locking mechanism for locking the arm in the open position. 15. Each support arm has a second locking mechanism for locking the arm in a closed position to provide the device with a slender, portable / storable structure. Scanning according to claim 14,
A portable device for printing, faxing and copying.