US20020036807A1 - Apparatus eqipped with removable scanner unit - Google Patents

Apparatus eqipped with removable scanner unit Download PDF

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Publication number
US20020036807A1
US20020036807A1 US08/964,257 US96425797A US2002036807A1 US 20020036807 A1 US20020036807 A1 US 20020036807A1 US 96425797 A US96425797 A US 96425797A US 2002036807 A1 US2002036807 A1 US 2002036807A1
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US
United States
Prior art keywords
scanner
unit
sheet
scanner unit
apparatus equipped
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US08/964,257
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English (en)
Inventor
Hitoshi Terashima
Kunihiko Ohmi
Satoshi Ishida
Tomohisa Sano
Hiroshi Yamagishi
Taketoshi Sawada
Yoshiki Tsuchiyama
Satoshi Kirita
Hitoshi Yoshio
Terunobu Ohue
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Fujitsu Ltd
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Fujitsu Ltd
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Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Assigned to FUJITSU LIMITED reassignment FUJITSU LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OHUE, TERUNOBU
Assigned to PFU LIMITED reassignment PFU LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ISHIDA, SATOSHI, KIRITA, SATOCHI, OHMI, KUNIHIKO, SANO, TOMOHISA, SAWADA, TAKETOSHI, TERASHIMA, HITOSHI, TSUCHIYAMA, YOSHIKI, YAMAGISHI, HIROSHI, YOSHIO, HITOSHI
Assigned to PFU LIMITED, FUJITSU LIMITED reassignment PFU LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OHUE, TERUOBU
Assigned to FUJITSU LIMITED, PFU LIMITED reassignment FUJITSU LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ISHIDA, SATOSHI, KIRITA, SATOSHI, OHMI, KUNIHIKO, SANO, TOMOHISA, SAWADA, TAKETOSHI, TERASHIMA, HITOSHI, TSUCHIYAMA, YOSHIKI, YAMAGISHI, HIROSHI, YOSHIO, HITOSHI
Priority to US09/407,446 priority Critical patent/US7379218B1/en
Assigned to FUJITSU LIMITED reassignment FUJITSU LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PFU LIMITED
Priority to US09/881,529 priority patent/US7133169B2/en
Assigned to FUJITSU LIMITED reassignment FUJITSU LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PFU LIMITED
Publication of US20020036807A1 publication Critical patent/US20020036807A1/en
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00519—Constructional details not otherwise provided for, e.g. housings, covers
    • H04N1/00538—Modular devices, i.e. allowing combinations of separate components, removal or replacement of components
    • H04N1/00541—Modular devices, i.e. allowing combinations of separate components, removal or replacement of components with detachable image reading apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00519—Constructional details not otherwise provided for, e.g. housings, covers
    • H04N1/00538—Modular devices, i.e. allowing combinations of separate components, removal or replacement of components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00519—Constructional details not otherwise provided for, e.g. housings, covers
    • H04N1/00551—Top covers or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
    • H04N1/00684—Object of the detection
    • H04N1/00687—Presence or absence
    • H04N1/00694—Presence or absence in an input tray
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
    • H04N1/00684—Object of the detection
    • H04N1/00708—Size or dimensions
    • H04N1/0071—Width
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
    • H04N1/00684—Object of the detection
    • H04N1/00708—Size or dimensions
    • H04N1/00713—Length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
    • H04N1/00729—Detection means
    • H04N1/00734—Optical detectors
    • H04N1/00737—Optical detectors using the scanning elements as detectors
    • H04N1/0074—Optical detectors using the scanning elements as detectors using inactive scanning elements, e.g. elements outside the scanning area
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
    • H04N1/00742—Detection methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/10—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces
    • H04N1/107—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces with manual scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/10—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces
    • H04N1/107—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces with manual scanning
    • H04N1/1071—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces with manual scanning using a folded light path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/12—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using the sheet-feed movement or the medium-advance or the drum-rotation movement as the slow scanning component, e.g. arrangements for the main-scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/191—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a one-dimensional array, or a combination of one-dimensional arrays, or a substantially one-dimensional array, e.g. an array of staggered elements
    • H04N1/192—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line
    • H04N1/193—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line using electrically scanned linear arrays, e.g. linear CCD arrays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00519—Constructional details not otherwise provided for, e.g. housings, covers
    • H04N1/00525—Providing a more compact apparatus, e.g. sheet discharge tray in cover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/12—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using the sheet-feed movement or the medium-advance or the drum-rotation movement as the slow scanning component, e.g. arrangements for the main-scanning
    • H04N1/121—Feeding arrangements

Definitions

  • the present invention generally relates to an apparatus equipped removably with a scanner unit (also referred to as a scanner-equipped apparatus) in which a base apparatus or base unit such as a personal computer, a word processor or the like incorporating therein a printer unit is combined detachably with a scanner unit so that the scanner unit itself can also be used independently as a so-called handy scanner.
  • a scanner unit also referred to as a scanner-equipped apparatus
  • a base apparatus or base unit such as a personal computer, a word processor or the like incorporating therein a printer unit is combined detachably with a scanner unit so that the scanner unit itself can also be used independently as a so-called handy scanner.
  • a printer/scanner combination apparatus which is composed of a printer unit and a scanner unit combined integrally and mutually detachably and which provides advantages that the space demanded for the installation of the apparatus can be reduced when compared with the space required for installing separately the printer unit and the scanner unit and that the printer/scanner combination apparatus can be manufactured at relatively low costs.
  • the present invention is particularly concerned with a printer/scanner combination apparatus which includes a printer unit and a scanner unit combined detachably such that the scanner unit can be detached to be used as the handy scanner, to thereby enhance the utility of the scanning function while ensuring high manipulatabilty and serviceability for maintenance of the apparatus.
  • the personal computer system is comprised of a main body, a display unit, a keyboard, a printer, etc. Consequently, for the installation of the personal computer system, a considerably large space is demanded. Such being the circumstances, user who bought a scanner will often bother his or her head over the place where the scanner is to be installed. Furthermore, although the scanner is commercially available at remarkably low price at present, purchase of the scanner means not a little burden on the consumers.
  • a scanner-equipped apparatus which includes automatic sheet feeders separately for a base unit such as a printer unit or personal computer or word processor incorporating a printer unit and a scanner unit, respectively, so that the printing function and the scanning or reading function can be made use of independently and separately from each other.
  • Another object of the present invention is to provide a scanner-equipped apparatus which allows a scanner unit to be detached for use as a handy scanner which is capable of operating automatically with high efficiency.
  • a scanner-equipped apparatus of such a basic structure in which a base unit such as a printer, personal computer, word processor or the like and a scanner unit are disposed substantially vertically or in upstanding posture in parallel with each other, wherein the scanner unit is removably or detachably combined with the base unit so that the scanner unit can be used as a handy scanner.
  • a sheet transporting path (or document sheet transportation path) for the scanner is formed between confronting surfaces of the base unit and the scanner unit when they are combined each other.
  • the sheet feeding mechanism for the scanner unit is so implemented as to be used intact as a driving mechanism for the handy scanner.
  • the apparatus equipped removably with a scanner or the scanner-equipped apparatus includes a base unit and a scanner unit which can be removably mounted on the base unit.
  • the base unit includes at least a controller, a part of sheet transporting mechanism and a scanner mounting means for mounting detachably the scanner unit.
  • the scanner unit includes at least a reading unit, the remaining part of the sheet transporting mechanism and an engaging means adapted for engaging the scanner mounting means for thereby securing the scanner unit onto the base unit.
  • the scanner unit may be so implemented as to be capable of operating as a handy scanner in the state where the scanner unit has been detached from the base unit.
  • the base unit may be a printer unit.
  • the base unit may be of an automatic sheet feeding type and include a first sheet transporting path extending substantially vertically
  • the scanner unit may be of an automatic sheet feeding type and include a second sheet transporting path extending substantially vertically, wherein the first and second sheet transporting paths are so disposed as to extend substantially in parallel and adjacent to each other.
  • the sheet transporting path or document sheet transporting path for the scanner unit may be defined by confronting surfaces of the base unit and the scanner unit in the state in which the scanner unit is mounted on the base unit.
  • the scanner-equipped apparatus may be so arranged that a pick roller is disposed at a location upstream of the second sheet transporting path of the scanner unit as viewed in the sheet transporting direction, while feed rollers are disposed at locations downstream of the second sheet transportation path for the scanner unit as viewed in the sheet transporting direction.
  • the pick roller may be made of a material having low hardness, wherein auxiliary rollers which are made of a material having high hardness may be disposed at sides of the pick roller, respectively, for thereby protecting the pick roller when the scanner unit is used as the handy scanner.
  • the auxiliary rollers may be disposed at locations outside of a reading region of the scanner unit.
  • the auxiliary rollers may be disposed in the vicinity of the pick roller, while grooves may be provided in a surface of the base unit facing in opposition to the auxiliary rollers.
  • a mark indicating a reading region may be provided at least on one of a front side portion and a rear side portion of the scanner unit, while a mark indicating a reading position may be provided on a lateral side portion of the scanner unit.
  • a cable for electrically coupling the scanner unit to the base unit may be led out from a location positioned at a lateral surface of the scanner unit.
  • a cable for electrically coupling the base unit to the scanner unit may be led out from a location positioned at a lower portion of a lateral surface of the base unit.
  • the sheet transporting mechanism for the scanner unit may include feed rollers and a driving motor for driving the feed rollers so that the scanner unit can operate as a handy scanner of an automatically running type by using the feed rollers.
  • the base unit may include a printer unit, wherein a sheet transporting mechanism of the printer unit is comprised of a feed roller and a driving motor for driving the feed roller.
  • a sheet transporting mechanism for the scanner unit may be comprised of a sheet transporting roller and an encoder for detecting an amount of rotation of the sheet transporting roller so that the scanner unit can be operated as a manual type handy scanner.
  • either one of engaging portions of the base unit and the scanner unit may be constituted by a pivotal shaft for allowing the scanner unit to rotate or swing frontwards, while the other engaging portion may be implemented as a groove or alternatively as a recess for receiving and holding snugly the pivotal shaft.
  • the scanner-equipped apparatus may further include a lock means including a claw and a projecting member adapted to engage with the claw for thereby locking the scanner unit in the state mounted on the base unit.
  • the scanner-equipped apparatus mentioned above may further be so arranged as to include a rotation limiting stopper means for preventing the scanner unit from swinging excessively frontwards upon detachment of the scanner unit from the base unit.
  • the scanner-equipped apparatus may additionally be so arranged as to include a deviation preventing stopper means for preventing the scanner unit from displacing upwardly in the state in which the scanner unit is mounted on the base unit.
  • the scanner-equipped apparatus described above may be so arranged as to include a sheet feeding means formed in a wedge-like shape as viewed in a vertical section by a pair of sheet guides disposed in opposition to each other so that a space defined between the pair of sheet guides becomes gradually narrower toward a sheet withdrawal port, and an offset means provided for at least one of the paired sheet guides for limiting stepwise the moving of the sheet toward the sheets withdrawal port.
  • FIGS. 1A and 1B are views showing generally an outer appearance of a printer/scanner combination apparatus according to an embodiment of the present invention, wherein FIG. 1A shows the same in a state in which a reader unit is combined with a printer unit so as to be capable of operating as an automatic paper feed type scanner unit, and FIG. 1B shows the reader unit dismounted from the printer unit so that the reader unit can be used as a handy scanner on a guide plate;
  • FIG. 2 is a schematic sectional view of a scanner unit showing a document sheet feeding mechanism for the reader unit;
  • FIG. 3 is a developed view showing a mount/detachment mechanism for the reader unit
  • FIG. 4 is a bottom plan view of the reader unit
  • FIG. 5 is a top plan view of the reader unit
  • FIG. 6 is a perspective view showing the reader unit
  • FIG. 7 is a sectional view showing schematically an optical mechanism incorporated in the reader unit
  • FIG. 8 is a schematic sectional view showing two kinds of sheet transportation paths are provided separately.
  • FIG. 9 is a schematic suctional view of a document sheet feeding tray in a printer/scanner combination apparatus according to an embodiment of the present invention.
  • FIGS. 1A and 1B are views showing generally an outer appearance of a printer/scanner combination apparatus according to an embodiment of the present invention, wherein FIG. 1A shows the same in the state in which a reader unit 1 is combined with a printer unit 3 so as to be capable of operating as an automatic paper feed type scanner unit, and FIG. 1B shows the same in the state in which the reader unit 1 is dismounted from the printer unit 3 so that the reader unit 1 can be used as a handy scanner on a guide plate 2 .
  • FIG. 1A major portions of a mechanical structure of the printer unit 3 are located at the back side of the printer/scanner combination apparatus and thus they are invisible in this figure.
  • the printer unit of the printer/scanner combination apparatus shown in FIG. 1A is implemented in a vertical standing structure, wherein a paper sheet is discharged through a printed paper delivery port 5 after having been printed by a printing means (not shown).
  • the reader unit 1 is equipped with a pick roller, a reading window and feed rollers etc., at a rear surface (which forms a bottom surface when the reader unit 1 is used as the handy scanner).
  • the scanner unit is implemented also in a substantially upstanding structure, wherein a document sheet fed from a document sheet feeding tray 6 is discharged from a scanned document sheet delivery port 7 after data (image data) on the document sheet have been read out by the reader unit 1 .
  • an L-shaped auxiliary guide 6 a is provided in association with the document sheet feeding tray 6 for the purpose of supporting a pile of document sheets of large sizes.
  • the L-shaped auxiliary guide 6 a may be so implemented as to be capable of supporting the document sheets of various sizes with a simplified structure.
  • the reader unit 1 is electrically coupled to the printer unit 3 by means of a cable (not shown) through which power supply as well as transmission of control signals and data can be realized between the reader unit 1 and the printer unit 3 .
  • the guide plate 2 is formed of a transparent material such as acrylic resin or the like and ordinarily adapted to be disposed on a document sheet.
  • the reader unit 1 is so dimensioned as to be snugly fit within a guide frame of the guide plate 2 .
  • a reading position mark 1 a is indicated at a lateral side of the reader unit 1
  • reading area marks 1 b are provided at the front and rear sides, respectively. These marks serve to aid the user in positioning the reader unit 1 within the reading region of the document sheet with accuracy in particular when the original reading operation is to be carried out without resorting to the use of the guide plate.
  • FIG. 2 is a schematic sectional view of the scanner unit showing a document sheet feeding mechanism of the reader unit 1 .
  • a document sheet transportation path for the scanner unit is formed between the printer unit and the reader unit 1 when the reader unit 1 is mounted on the printer unit.
  • the reader unit 1 is equipped with a pick roller 10 and a feed roller 11 which are rotationally driven by a driving motor 8 through the medium of a driving gear train generally denoted by reference numeral 9 . From a layer or pile of loose document sheets 12 placed on the document sheet feeding tray 6 , a document sheet is withdrawn downwardly on a sheet-by-sheet basis through cooperation of the pick roller 10 and the document sheet separating member 13 .
  • the document sheet as withdrawn from the pile 12 is detected by a document sheet detection sensor 14 for making preparation for the data reading operation, which is followed by detection of the leading edge of the document sheet by a leading/trailing edge detecting sensor 15 , whereupon image data reading operation is started. Subsequently, upon detection of the trailing edge of the document sheet, the image data reading operation is terminated.
  • the feed roller 11 and a follower roller 16 cooperate to feed the scanned document sheet to a scanned document sheet delivery guide 17 .
  • the scanned document sheet delivery guide 17 may be so implemented as to serve also as a cover for the printed paper delivery port 5 of the printer unit 3 shown in FIG. 1A.
  • FIG. 3 is a developed view showing a mount/removal mechanism for the reader unit to be used also as the handy scanner.
  • the reader unit 1 is provided with a pivotal shaft receiving groove 18 a, a locking claw receiving groove 20 a and a stopper groove 21 a, respectively, so that the reader unit 1 can be mounted removably on the printer unit at both sides of the reader unit 1 with high security.
  • the printer unit 3 is provided with a pivotal shaft 18 b, a locking claw 20 b and a stopper 21 b which are adapted to engage with the pivotal shaft receiving groove 18 a, the locking claw 20 b and the stopper groove 21 a of the reader unit, respectively.
  • the pivotal shaft receiving groove 18 a has a bottom opened.
  • the reader unit 1 can easily be dismounted from the printer unit 3 by rotating or turning the reader unit 1 in the counterclockwise direction, as indicated by an arrow ⁇ circle over ( 1 ) ⁇ , from the mounted state in which the reader unit 1 is inclined in the right-hand direction (indicated by a solid line) to a substantially vertical state (indicated by broken line) and then lifting upwardly the reader unit 1 , as indicated by an arrow ⁇ circle over ( 2 ) ⁇ .
  • the reader unit 1 can be mounted by carrying out the procedures indicated by the arrows ⁇ circle over ( 1 ) ⁇ and ⁇ circle over ( 2 ) ⁇ in the reverse order.
  • the reader unit 1 In the state where the reader unit 1 is mounted on the printer unit 3 , the reader unit 1 is prevented from the counterclockwise rotation so long as a force of predetermined magnitude is not applied because of the engagement between the locking claw receiving groove 20 a and the locking claw 20 b. Besides, in addition to the prevention of the counterclockwise rotation of the reader unit 1 , upward move of the reader unit 1 in the mounted state is prevented owing to the mutual engagement of the stopper groove 21 a and the stopper 21 b. In this manner, the reader unit 1 can be mounted on the printer unit 3 with significantly high security.
  • the rotation stopper 19 a is formed integrally with the pivotal shaft receiving groove 18 a of the reader unit 1 and extends downwardly, the rotation of the reader unit 1 can be limited to within a predetermined angular range because the rotation stopper 19 a is received by the rotation stopper receiving groove 19 b provided in association with the printer unit 3 upon counterclockwise rotation of the reader unit 1 . In this manner, the reader unit 1 can positively be protected against accidental removal from the printer unit 3 due to inadvertent manipulation of the user.
  • FIG. 4 is a bottom plan view showing the reader unit 1
  • FIG. 5 is a top plan view showing the same
  • FIG. 6 is a perspective view thereof.
  • a pick roller 22 may be mounted on the bottom surface of the reader unit 1 at a front and center location, while a pair of feed rollers 23 are mounted at right and left positions, respectively, symmetrically relative to the rear center of the reading window 24 .
  • each of the pick roller 22 and the feed rollers 23 is driven rotationally by the driving motor 8 by way of the driving gear train 9 .
  • operation of the scanner can be performed automatically by making use of the rotational driving force or torque generated by the electric motor mentioned above.
  • the pick roller 22 is usually made of a relatively flexible material of low hardness such as urethane resin. In that case, such situation may occur that the pick roller 22 is collapsed under the gravity of the reader unit and can not support the reader unit.
  • an auxiliary rollers 22 a made of a material of high hardness which serves for supporting the reader unit 1 so that the pick roller 22 does not apply excessive pressure onto the guide plate or the top surface of the document sheet.
  • the auxiliary rollers 22 a are disposed outside of the reading region 24 in order to protect the surface of the document sheet 12 against injury, as can be seen in FIG. 4.
  • the width of the auxiliary rollers 22 a may be increased and mounted in the vicinity of the pick roller 22 so that the auxiliary rollers 22 a can rotate freely coaxially with the pick roller 22 .
  • FIG. 7 is a sectional view showing an optical mechanism 25 incorporated in the reader unit 1 .
  • the reading position is defined at the reading window 24 described hereinbefore by reference to FIG. 4.
  • Light rays reflected from the document sheet to be read out and impinging into the optical mechanism through the reading window 24 reflections a number of times at a plurality of mirrors 25 a to be collected by a lens 25 b and received by a charge coupled device 25 c which serves for converting the optical information into an electric signal.
  • the printer unit and the scanner unit of the printer/scanner combination apparatus have sheet transportation paths (i.e., the paper sheet transportation path and the document sheet transportation path) provided separately for the printer unit and the scanner unit, respectively.
  • the printer unit is in the state where a pile of paper sheets is set or placed on the paper sheet feeding tray, while for the scanner unit, various kinds of the document sheets to be scanned or read out are set or placed on the document sheet feeding tray 6 every time the reading operation is desired.
  • the paper sheet transportation path and the document sheet transportation path are provided separately for the printer unit and the scanner unit, respectively. Furthermore, it is desirable that the document sheets can be placed at the document sheet feeding tray 6 more easily when compared with the setting of blank paper sheets. To this end, the document sheet transportation path for the scanner unit should be disposed at a position near to the front side of the apparatus, as viewed in FIG. 1A.
  • FIG. 8 is a schematic sectional view of the printer/scanner combination apparatus in which the two sheet transportation paths (i.e., the paper sheet transportation path and the document sheet transportation path) are provided separately, as mentioned above.
  • the printer unit 3 the paper sheet placed as a pile at the paper sheet feeding tray 4 for the printer is automatically transported on a sheet-by-sheet basis along the paper sheet transportation path 30 as indicated by an arrow. After having been printed by a printing head 28 , the printed paper sheet is discharged from the printed paper delivery port 5 .
  • the scanner unit portion having the reading window 24 mounted on the printer unit the document sheet placed on the document sheet feeding tray 6 is automatically fed into the reader unit 1 on a sheet-by-sheet basis.
  • the document sheet undergone the reading operation is transported along the document sheet transportation path 31 as indicated by an arrow to be discharged from the document sheet withdrawal port 35 .
  • the sheet transportation paths for the printer unit and the scanner unit are provided substantially in parallel with each other.
  • the document sheet feeding tray 6 disposed at the front side may present an obstacle to the setting or positioning of a pile of paper sheets on the paper sheet feeding tray 4 for the printer.
  • the document sheet feeding tray 6 should preferably be so implemented as to be pivotally inclined to the front side, as viewed in FIG. 1 (or to the right-hand side, as viewed in FIG. 8) within a predetermined angular range.
  • the printer cover/document sheet guide means 29 serves not only as the cover for the printing mechanism of the printer unit but also as the guide for the document sheet which has undergone the reading operation by the scanner unit. Consequently, the printer cover/document sheet guide means 29 should preferably be so implemented that it can be inclined toward the front side or removed in order to facilitate the maintenance of the printing mechanism.
  • FIG. 9 is a schematic suctional view of the document sheet feeding tray in the printer/scanner combination apparatus according to the instant embodiment of the invention.
  • a document sheet guide 32 and an auxiliary document sheet guide member 33 are disposed in opposition to each other in such orientation that the space defined between the document sheet guide 32 and the auxiliary document sheet guide member 33 becomes narrower gradually toward a document sheet withdrawal port 35 .
  • the vertical section of the space between the document sheet guide 32 and the auxiliary document sheet guide member 33 presents substantially a wedge-like shape.
  • the document sheet guide 32 should preferably be provided with an offset portion 34 in order to prevent the load of all the document sheets piled from being concentrated to the document sheet withdrawal port 35 .
  • a plurality of such offset portions 34 may be provided although only one offset portion 34 is shown in FIG. 9. Additionally, such offset portion may be provided in the auxiliary document sheet guide member 33 as well. Parenthetically, the offset portion is imparted with a lenient inclination so that the document sheet can slidably move downwardly to the document sheet withdrawal port 35 .
  • the driving motor 8 and the feed rollers 11 are incorporated in the reader unit 1 so that the reader unit 1 can be operated independently.
  • the present invention is never restricted to the implementation of the reader unit 1 in the form of the handy scanner which can be operated automatically.
  • the driving mechanism may be incorporated in the base unit (printer unit) with the reader unit 1 being constituted by the following roller and the position detecting encoder.
  • the reader unit can be implemented in a miniaturized structure of light weight.
  • the cable interconnecting the reader unit 1 and the printer unit 3 may preferably be secured to lower side portions of the reader unit 1 and the printer unit 3 , respectively, while a cable clamp member for securing the cable to the guide plate may be provided in association with the latter.
  • the scanner unit with a base unit such as a printer unit, personal computer, word processor or the like incorporating a printer unit so that the printer unit and the scanner unit can be operated independent of each other.
  • the space required for installing the base unit and the scanner unit can be reduced significantly.
  • the scanner unit can be easily detached or removed from the base unit and used as an automatically or manually operated handy scanner essentially without need for provision of any additional means.
  • the utility efficiency of the printer/scanner combination apparatus can be enhanced remarkably as a whole nevertheless of low manufacturing cost.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Facsimiles In General (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Image Input (AREA)
  • Printers Characterized By Their Purpose (AREA)
US08/964,257 1996-11-05 1997-11-04 Apparatus eqipped with removable scanner unit Abandoned US20020036807A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US09/407,446 US7379218B1 (en) 1996-11-05 1999-09-29 Apparatus equipped with removable scanner unit
US09/881,529 US7133169B2 (en) 1996-11-05 2001-06-14 Apparatus equipped with removable scanner unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8292722A JPH10134163A (ja) 1996-11-05 1996-11-05 スキャナ付き装置
JP292722/8 1996-11-05

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US09/407,446 Division US7379218B1 (en) 1996-11-05 1999-09-29 Apparatus equipped with removable scanner unit
US09/881,529 Division US7133169B2 (en) 1996-11-05 2001-06-14 Apparatus equipped with removable scanner unit

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US20020036807A1 true US20020036807A1 (en) 2002-03-28

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ID=17785478

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Application Number Title Priority Date Filing Date
US08/964,257 Abandoned US20020036807A1 (en) 1996-11-05 1997-11-04 Apparatus eqipped with removable scanner unit
US09/881,529 Expired - Fee Related US7133169B2 (en) 1996-11-05 2001-06-14 Apparatus equipped with removable scanner unit

Family Applications After (1)

Application Number Title Priority Date Filing Date
US09/881,529 Expired - Fee Related US7133169B2 (en) 1996-11-05 2001-06-14 Apparatus equipped with removable scanner unit

Country Status (7)

Country Link
US (2) US20020036807A1 (fr)
EP (8) EP1150489A3 (fr)
JP (1) JPH10134163A (fr)
KR (5) KR100456179B1 (fr)
CN (1) CN1196538A (fr)
DE (5) DE69729130T2 (fr)
TW (1) TW382675B (fr)

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Also Published As

Publication number Publication date
DE69729130T2 (de) 2005-05-04
DE69721081D1 (de) 2003-05-22
EP1041810A1 (fr) 2000-10-04
US20030095296A1 (en) 2003-05-22
DE69721080D1 (de) 2003-05-22
EP1309167A3 (fr) 2004-11-24
KR100456651B1 (ko) 2004-11-10
EP1035725A2 (fr) 2000-09-13
KR100456654B1 (ko) 2004-11-10
KR100456179B1 (ko) 2004-12-30
US7133169B2 (en) 2006-11-07
EP0840494B1 (fr) 2003-08-20
EP1041811A1 (fr) 2000-10-04
CN1196538A (zh) 1998-10-21
TW382675B (en) 2000-02-21
EP1035725B1 (fr) 2008-10-01
KR100456653B1 (ko) 2004-11-10
DE69739022D1 (de) 2008-11-13
EP1309167A2 (fr) 2003-05-07
KR19980042112A (ko) 1998-08-17
KR100456652B1 (ko) 2004-11-10
DE69729130D1 (de) 2004-06-17
JPH10134163A (ja) 1998-05-22
EP1150489A3 (fr) 2001-11-07
EP1150484A3 (fr) 2001-11-07
DE69721081T2 (de) 2003-12-04
EP0840494A3 (fr) 1999-10-06
EP1035725A3 (fr) 2000-10-04
EP1150484A2 (fr) 2001-10-31
EP1041812B1 (fr) 2004-05-12
EP1041812A1 (fr) 2000-10-04
EP1150489A2 (fr) 2001-10-31
DE69721080T2 (de) 2003-12-04
EP1041810B1 (fr) 2003-04-16
DE69724215D1 (de) 2003-09-25
EP1041811B1 (fr) 2003-04-16
EP0840494A2 (fr) 1998-05-06
DE69724215T2 (de) 2004-06-09

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