IMAGE SCANNING APPARATUS AND MULTI-FUNCTION APPARATUS INCLUDING THE SAME

• US 20140240801A1
• Filed: 02/21/2014
• Published: 08/28/2014
• Est. Priority Date: 02/28/2013
• Status: Active Grant

• Current Assignee: HP Printing Korea Co., Ltd. (HP Inc.)
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KANG, Jin Gu, Jeong, Yun Jeong
• Granted Patent: US 9,088,687 B2
• Time in Patent Office: Days
• US Class Current: 358/497
• CPC Class Codes: H04N 1/00551 Top covers or the like
• CPC Class Codes: H04N 1/1017 the main-scanning components remaining positionally invariant with respect to one another in the sub-scanning direction
• CPC Class Codes: H04N 1/103 by engaging a rail
• CPC Class Codes: H04N 1/1065 Support or mounting of the flat picture-bearing surface
• CPC Class Codes: H04N 1/12 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-scanningsheet-feed movement by translatory movement of a flat picture-bearing surface H04N1/1008; main-scanning using oscillating or rotating mirrors H04N1/113; using multi-element arrays H04N1/19
• CPC Class Codes: H04N 1/193 using electrically scanned linear arrays , e.g. linear CCD arrays
• CPC Class Codes: H04N 2201/0081 Image reader H04N2201/0091 - H04N2201/0094 take precedence
• CPC Class Codes: H04N 2201/0442 Details of scanning carriage or moving picture-bearing surface support, e.g. bearing contact with guide rails
• CPC Class Codes: H04N 2201/0456 for maintaining a predetermined distance between the scanning elements and the picture-bearing surface

Abstract

An image scanning apparatus includes a document holder and a scanner module movably installed in the document holder, A multi-function apparatus may further include the image scanning apparatus. While the scanner module passes over the lower side of a document guide provided between a first glass and a second glass provided at the document holder, spacers installed at opposite ends of the scanner module are moved downward by guide members provided at the document guide, thereby preventing spacer portions provided at an upper end of the respective spacers from being caught by the document guide.

Claims

1. An image scanning apparatus comprising:

a document holder;

a scanner module disposed at a lower side of the document holder, the scanner module extending in a first direction, the scanner module capable of moving in a second direction perpendicular to the first direction to scan image information from a document loaded on the document holder;

an automatic document feeding unit disposed at an upper side of the document holder to automatically feed a document to be scanned; and

a pair of spacers disposed at opposite sides of the scanner module in the first direction, wherein

the document holder comprises a first glass and a second glass, the second glass being spaced apart from the first glass in the second direction, and guide members provided between the first glass and the second glass, the guide members protruding toward moving routes of the spacers to guide downward movement of the spacers, and

at least one of the spacers include at least one spacer portion protruding from a top thereof such that the spacer portion is supported by a bottom of one of the first and second glasses.

2. The image scanning apparatus according to claim 1, wherein at least one of the spacer portions has an upper end of a predetermined width in the first direction such that the at least one of the spacer portions comes into surface contact with one of the first and second glasses.

3. The image scanning apparatus according to claim 1, wherein at least one of the spacer portions is formed in an arc shape in the first direction such that the at least one of the spacer portions comes into linear contact with one of the first and second glasses.

4. The image scanning apparatus according to claim 1, wherein

at least one of the spacer portions comprises a spacer portion provided at one side of the top of a corresponding spacer in the first direction, and

a corresponding guide member contacts the other side of the top of the corresponding spacer in the second direction.

5. The image scanning apparatus according to claim 1, wherein at least one of the spacers includes a plurality of spacer portions provided in the first direction such that the spacer portions are parallel to each other in the second direction.

6. The image scanning apparatus according to claim 5, wherein

the plurality of spacer portions is provided at one side of the top of a corresponding spacer in the first direction, and

a corresponding guide member contacts the other side of the top of the corresponding spacer in the second direction.

7. The image scanning apparatus according to claim 5, wherein

the plurality of spacer portions is provided at opposite sides of the top of a corresponding spacer in the first direction such that the plurality of spacer portions are spaced apart from each other, and

a corresponding guide member contacts the top of a corresponding ospacer between the plurality of spacer portions.

8. The image scanning apparatus according to claim 1, wherein each guide member comprises a roller coming into linear contact with the top of a corresponding spacer.

9. The image scanning apparatus according to claim 1, wherein each guide member comprises a ball coming into point contact with the top of a corresponding spacer.

10. The image scanning apparatus according to claim 1, further comprising:

a document guide disposed between the first glass and the second glass, wherein

at least one guide member comprises a guide protrusion integrally protruding from a bottom of the document guide.

11. The image scanning apparatus according to claim 1, further comprising:

a guide rail extending in the first direction;

a moving member installed at the guide rail such that the moving member moves in the first direction; and

at least one elastic member installed between the scanner module and the moving member.

12. A multi-function apparatus comprising:

an image forming apparatus to form an image; and

an image scanning apparatus disposed on the image forming apparatus to scan image information of a document, wherein

the image scanning apparatus comprises;

a document holder,

a scanner module disposed at a lower side of the document holder, the scanner module extending in a first direction, the scanner module capable of moving in a second direction perpendicular to the first direction to scan image information from a document loaded on the document holder,

an automatic document feeding unit disposed at an upper side of the document holder to automatically feed a document to be scanned, and

a pair of spacers disposed at opposite sides of the scanner module in the first direction,

wherein the document holder comprises a first glass and a second glass, the second glass being spaced apart from the first glass in the second direction, and guide members provided between the first glass and the second glass, the guide members protruding toward moving routes of the spacers to guide downward movement of the spacers, and

at least one of the spacers include at least one spacer portion protruding from a top thereof such that the spacer portion is supported by a bottom of one of the first and second glasses.

13. The multi-function apparatus according to claim 12, wherein at least one of the spacer portions has an upper end of a predetermined width in the first direction such that the at least one of the spacer portions comes into surface contact with one of the first and second glasses.

14. The multi-function apparatus according to claim 13, wherein at least one of the spacer portions is formed in an arc shape in the first direction such that the at least one of the spacer portions comes into linear contact with one of the first and second glasses.

15. The multi-function apparatus according to claim 12, wherein

at least one of the spacer portions comprises a spacer portion provided at one side of the top of a corresponding spacer in the first direction, and

a corresponding guide member contacts the other side of the top of the corresponding spacer in the second direction.

16. The multi-function apparatus according to claim 12, wherein at least one of the spacers includes a plurality of spacer portions provided in the first direction such that the spacer portions are parallel to each other in the second direction.

17. The multi-function apparatus according to claim 16, wherein

the plurality of spacer portions is provided at one side of the top of a corresponding spacer in the first direction, and

a corresponding guide member contacts the other side of the top of the corresponding spacer in the second direction.

18. The multi-function apparatus according to claim 16, wherein

the plurality of spacer portions is provided at opposite sides of the top of a corresponding spacer in the first direction such that the plurality of spacer portions are spaced apart from each other, and

a corresponding guide member contacts the top of a corresponding spacer between the plurality of spacer portions.

19. The multi-function apparatus according to claim 12, wherein each guide member comprises a roller coming into linear contact with the top of a corresponding spacer.

20. The multi-function apparatus according to claim 12, wherein each guide member comprises a ball coming into point contact with the top of a corresponding spacer.

21. The multi-function apparatus according to claim 12, further comprising:

a document guide disposed between the first glass and the second glass, wherein

at least one guide member comprises a guide protrusion integrally protruding from a bottom of the document guide.

22. The multi-function apparatus according to claim 12, further comprising:

a guide rail extending in the first direction;

a moving member installed at the guide rail such that the moving member moves in the first direction; and

at least one elastic member installed between the scanner module and the moving member.

23. An image scanning apparatus comprising:

a scanner module disposed beneath a first glass and a second glass disposed adjacent to the first glass, to move between the first glass and second glass in a first direction;

a spacer disposed at an end of the scanner module in a second direction, perpendicular to the first direction, to maintain a predetermined distance between a lower surface of at least one of the first glass and second glass and a top of the scanner module;

a spacer portion disposed at an upper portion of the spacer to support at least one of the first glass and second glass; and

a guide member disposed between the first glass and second glass to guide downward movement of the spacer.

24. The image scanning apparatus according to claim 23, further comprising:

a moving member installed on a rail which extends in the first direction, wherein the scanning module is disposed on the moving member which guides movement of the scanning module in the first direction; and

an elastic member disposed between the moving member and the scanner module to elastically support the spacer and the scanner module.

25. The image scanning apparatus according to claim 24, wherein the guide member moves the spacer and scanner module downward when the scanner module moves to a position between the first glass and second glass.

26. The image scanning apparatus according to claim 25, wherein the elastic member is adapted to move the spacer and scanning module upward by an elastic restoring force, after the scanner module moves from a position beneath one of the first glass and the second glass to a position beneath the other one of the first glass and second glass.

27. The image scanning apparatus according to claim 23, wherein the spacer is formed of lubricating resin.