Sheet feeding device for a printer

A sheet feeding device for a printer comprising an ink drum rotatable at a variable speed in accordance with any one of a plurality of print speeds with a master wrapped therearound, pressing means pressed against said ink drum relative to said ink drum with the intermediary of a sheet, registering means for feeding a leading edge of the sheet toward a print position between said ink drum and said pressing means, a bank sheet feeding section positioned below said print position, and sheet conveying means for conveying the sheet fed from said bank sheet feeding section toward said registering means, said sheet feeding device comprising:

• print speed setting means for setting a print speed such that said ink drum rotates in accordance with a set print speed included in the plurality of print speeds;
• and
• sheet conveyance drive means independent of a driveline assigned to said ink drum for driving said sheet conveying means;
• said sheet conveyance drive means driving, when the set print speed is higher than a standard print speed, said sheet conveying means in such a manner as to set up a sheet conveying speed matching with a highest set print speed included in the plurality of print speeds or driving, when said set print speed is lower than said standard print speed, said sheet conveying means in such a manner as to set up a sheet conveying speed matching with said standard speed.

A sheet feeding device for a printer comprising an ink drum rotatable at a variable speed in accordance with any one of a plurality of print speeds with a master wrapped therearound, pressing means pressed against said ink drum relative to said ink drum with the intermediary of a sheet, registering means for feeding a leading edge of the sheet toward a print position between said ink drum and said pressing means, and a bank sheet feeding section for conveying the sheet toward said registering means, said sheet feeding device comprising:

• bank registering means included in said bank sheet feeding section independently of said registering means for feeding the leading edge of the sheet toward said registering means;
• bank sheet conveying means for feeding the leading edge of the sheet toward said bank registering means such that said leading edge of said sheet abuts against said bank registering means and forms a loop;
• bank sheet conveyance drive means independent of a driveline assigned to said ink drum for driving said bank sheet conveying means;
• and
• print speed setting means for setting a print speed such that said ink drum rotates in accordance with a set print speed included in the plurality of print speeds;
• said bank sheet conveyance drive means driving said bank sheet conveying means in such a manner as to set up a constant sheet conveying speed without regard to the set print speed set via said print speed setting means.

A sheet feeding device for a printer comprising an ink drum rotatable at a variable speed in accordance with any one of a plurality of print speeds with a master wrapped therearound, pressing means pressed against said ink drum relative to said ink drum with the intermediary of a sheet, registering means for feeding a leading edge of the sheet toward a print position between said ink drum and said pressing means, and a bank sheet feeding section for conveying the sheet toward said registering means, said sheet feeding device comprising:

• bank registering means included in said bank sheet feeding section independently of said registering means for feeding the leading edge of the sheet toward said registering means;
• bank sheet conveying means for feeding the leading edge of the sheet toward said bank registering means such that said leading edge of said sheet abuts against said bank registering means and forms a loop;
• bank sheet conveyance drive means independent of a driveline assigned to said ink drum for driving said bank sheet conveying means;
• and
• print speed setting means for setting a print speed such that said ink drum rotates in accordance with a set print speed included in the plurality of print speeds;
• said bank sheet conveyance drive means driving, when the set print speed is higher than a standard print speed, said bank sheet conveying means in such a manner as to set up a sheet conveying speed matching with said set print speed or driving, when said set print speed is lower than said standard print speed, said bank sheet conveying means in such a manner as to set up a sheet conveying speed matching with said standard print speed.

A sheet feeding device for a printer comprising an ink drum rotatable at a variable speed in accordance with any one of a plurality of print speeds with a master wrapped therearound, pressing means pressed against said ink drum relative to said ink drum with the intermediary of a sheet, registering means for feeding a leading edge of the sheet toward a print position between said ink drum and said pressing means, and a bank sheet feeding section for conveying the sheet toward said registering means, said sheet feeding device comprising:

• bank registering means included in said bank sheet feeding section independently of said registering means for feeding the leading edge of the sheet toward said registering means;
• bank sheet conveying means for feeding the leading edge of the sheet toward said bank registering means such that said leading edge of said sheet abuts against said bank registering means and forms a loop;
• bank sheet conveyance drive means independent of a driveline assigned to said ink drum for driving said bank sheet conveying means;
• and
• print speed setting means for setting a print speed such that said ink drum rotates in accordance with a set print speed included in the plurality of print speeds;
• said bank sheet conveyance drive means driving, when the set print speed is higher than a standard print speed, said bank sheet conveying means in such a manner as to set up a sheet conveying speed matching with a highest set print speed included in the plurality of print speeds or driving, when said set print speed is lower than said standard print speed, said bank sheet conveying means in such a manner as to set up a sheet conveying speed matching with said standard print speed.