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Browse Prior Art Database

Print View and Return Device

IP.com Disclosure Number: IPCOM000052490D
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11
Document File: 3 page(s) / 48K

Publishing Venue

IBM

Related People

Blaskovic, SU: AUTHOR [+3]

Abstract

The apparatus shown in the figure allows an operator of a printer to advance continuous from paper to point where the print line can be viewed and then returned to its initial position. It further allows the operator to set the position of the first print line on the paper. There are occasions when the operator may want to suspend the printing operation, advance the paper to see the line that has been printed, and then return the paper to the original position. Cn other occasions the operator may wish to set the position of the paper such that the first printed line falls in a specific area, for instance, on preprinted forms. On a typewriter, this is done visually, but on a printer, the printed line is not visible until it clears the ribbon cover.

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Print View and Return Device

The apparatus shown in the figure allows an operator of a printer to advance continuous from paper to point where the print line can be viewed and then returned to its initial position. It further allows the operator to set the position of the first print line on the paper. There are occasions when the operator may want to suspend the printing operation, advance the paper to see the line that has been printed, and then return the paper to the original position. Cn other occasions the operator may wish to set the position of the paper such that the first printed line falls in a specific area, for instance, on preprinted forms. On a typewriter, this is done visually, but on a printer, the printed line is not visible until it clears the ribbon cover. The device shown in the figure allows the operator to advance the paper to a point where the print line can be viewed and then return the paper so that printing can be continued at the same point. Also, it allows the operator to set the position of the first print line.

Referring to the figure, in order to initially position the paper 8, the first line to be printed is aligned with a certain point, such as a notch 10 in the tractor door
11. Next, the clutch wheel 12 is disengaged from the handwheel 14 by sliding the clutch wheel 12 to the right away from the handwheel 14. The clutch wheel 12 is then rotated to the point where the "0" mark 16 on the wheel 14 lines up with the indicator 18 and the clutch wheel 12 is released. By releasing the clutch wheel 12, a spring 13 pushes the clutch wheel 12 and handwheel 14 together. When disengaged, the clutch wheel 12 rotates freely with respect to the handwheel 14 and the forms drive shaft 20, and when engaged, the clutch wheel 12 rotates with them. In lieu of a positive engagement clutch, the friction clutch principle can be used, in which case no sliding to the right is required. Next, the handwheel 14 is rotated backwards one complete revolution until the "0" mark 16 again aligns with the indicator. The tractor 11 is mounted such that th...