Conveying rotational member for an ink recording apparatus, and ink recording apparatus having the same

An ink printer for printing on an ink bearing medium using a liquid ink, said printer comprising:

• at least one rotatable member arranged in a region of a transport path of the ink bearing medium, said rotatable member being contactable with the ink bearing medium at regions thereof upon which the ink has been deposited, wherein said rotatable member includes a radially outermost perimeter portion which serves as an ink bearing medium contacting peripheral surface, said outermost perimeter portion having an outermost edge and being smooth and continuous and being such that a bonding force with respect to the ink is less than a sum of a bonding force between the ink bearing medium and the ink and a cohesive force of the ink itself, thereby preventing adherence of the ink to said contacting peripheral surface, wherein said contacting peripheral surface is linear in cross-section at a position of contact with the medium and is provided at the periphery of said rotatable member, which is formed by a central ring disposed between two frusto-conical guide rings.

An ink printer including a supply of liquid ink and a supply of ink bearing media, said printer comprising:

• at least one rotatable member arranged in a region of a transport path of the ink bearing medium, said rotatable member being contactable with the ink bearing medium at regions thereof upon which the ink has been deposited, said rotatable member including an ink bearing medium contacting peripheral surface, wherein said ink bearing medium contacting peripheral surface has an outermost edge and is smooth and continuous such that said contacting peripheral surface continuously engages a printing surface of the medium when the rotatable member engages the medium surface, and a bonding force with respect to the ink is less than a sum of a bonding force between the ink bearing medium and the ink and a cohesive force of the ink itself, thereby preventing adherence of the ink to said contacting peripheral surface, wherein sides of said rotatable member have frusto-conical surfaces and wherein the sides of said rotatable member are continuous with the contacting peripheral surface, which is linear in cross-section at a position of contact with the medium.

An ink printer including a supply of liquid ink and a supply of ink bearing media, said printer comprising:

• at least one rotatable member arranged in a region of a transport path of the ink bearing medium, said rotatable member being contactable with the ink bearing medium at regions thereof upon which the ink has been deposited, said rotatable member including an ink bearing medium contacting peripheral surface, wherein said ink bearing medium contacting peripheral surface has an outermost edge and is smooth and continuous such that said contacting peripheral surface continuously engages a printing surface of the medium when the rotatable member engages the medium surface, and a bonding force with respect to the ink is less than a sum of a bonding force between the ink bearing medium and the ink and a cohesive force of the ink itself, thereby preventing adherence of the ink to said contacting peripheral surface, wherein said contacting peripheral surface is linear in cross-section at a position of contact with the medium and is provided at the periphery of said rotatable member, which is formed by a central ring disposed between two frusto-conical guide rings.

An ink printer for printing on an ink bearing medium using a liquid ink, said printer comprising:

• at least one rotatable member arranged in a region of a transport path of the ink bearing medium, said rotatable member being contactable with the ink bearing medium at regions thereof upon which the ink has been deposited, wherein said rotatable member includes a radially outermost perimeter portion which serves as an ink bearing medium contacting peripheral surface, said outermost perimeter portion having an outermost edge and being smooth and continuous and being such that a bonding force with respect to the ink is less than a sum of a bonding force between the ink bearing medium and the ink and a cohesive force of the ink itself, thereby preventing adherence of the ink to said contacting peripheral surface, wherein sides of said rotatable member have frusto-conical surfaces and the sides of said rotatable member are continuous with the contacting peripheral surface.

An ink printer for printing on an ink bearing medium using a liquid ink, said printer comprising:

• at least one rotatable member arranged in a region of a transport path of the ink bearing medium, said rotatable member being contactable with the ink bearing medium at regions thereof upon which the ink has been deposited, wherein said rotatable member includes a radially outermost perimeter portion which serves as an ink bearing medium contacting peripheral surface, said outermost perimeter portion having an outermost edge and being smooth and continuous and being such that a bonding force with respect to the ink is less than a sum of a bonding force between the ink bearing medium and the ink and a cohesive force of the ink itself, thereby preventing adherence of the ink to said contacting peripheral surface, wherein said contacting peripheral surface is provided at the periphery of said rotatable member, which is formed by a central ring disposed between two frusto-conical guide rings.

An ink printer including a supply of liquid ink and a supply of ink bearing media, said printer comprising:

• at least one rotatable member arranged in a region of a transport path of the ink bearing medium, said rotatable member being contactable with the ink bearing medium at regions thereof upon which the ink has been deposited, said rotatable member including an ink bearing medium contacting peripheral surface, wherein said ink bearing medium contacting peripheral surface has an outermost edge and is smooth and continuous such that said contacting peripheral surface continuously engages a printing surface of the medium when the rotatable member engages the medium surface, and a bonding force with respect to the ink is less than a sum of a bonding force between the ink bearing medium and the ink and a cohesive force of the ink itself, thereby preventing adherence of the ink to said contacting peripheral surface, wherein sides of said rotatable member have frusto-conical surfaces and wherein the sides of said rotatable member are continuous with the contacting peripheral surface.

An ink printer including a supply of liquid ink and a supply of ink bearing media, said printer comprising:

• at least one rotatable member arranged in a region of a transport path of the ink bearing medium, said rotatable member being contactable with the ink bearing medium at regions thereof upon which the ink has been deposited, said rotatable member including an ink bearing medium contacting peripheral surface, wherein said ink bearing medium contacting peripheral surface has an outermost edge and is smooth and continuous such that said contacting peripheral surface continuously engages a printing surface of the medium when the rotatable member engages the medium surface, and a bonding force with respect to the ink is less than a sum of a bonding force between the ink bearing medium and the ink and a cohesive force of the ink itself, thereby preventing adherence of the ink to said contacting peripheral surface, wherein said contacting peripheral surface is provided at the periphery of said rotatable member, which is formed by a central ring disposed between two frusto-conical guide rings.