Browse Prior Art Database

Ink Jet Printer

IP.com Disclosure Number: IPCOM000086654D
Original Publication Date: 1976-Oct-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Manning, DF: AUTHOR [+4]

Abstract

A rotatable support drum can be used for printing either sheets or continuous forms when operated in conjunction with a multiorifice ink jet printing head. In Fig. 1, the drum 1, which may be equipped with vacuum ports, is used to move recording sheet 2 past ink jet recording head 3. The recording head is supported for movement axially of the drum. The head may be of a size sufficient to record a plurality of lines 5 of print. In such case, the sheet must be placed on the drum surface at an angle of skew "a" to maintain alignment of printing with the top edge 6 of the sheet. This also allows the plurality of lines on the next drum revolution to be positioned adjacent to the plurality of lines currently being recorded.

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Ink Jet Printer

A rotatable support drum can be used for printing either sheets or continuous forms when operated in conjunction with a multiorifice ink jet printing head. In Fig. 1, the drum 1, which may be equipped with vacuum ports, is used to move recording sheet 2 past ink jet recording head 3. The recording head is supported for movement axially of the drum. The head may be of a size sufficient to record a plurality of lines 5 of print. In such case, the sheet must be placed on the drum surface at an angle of skew "a" to maintain alignment of printing with the top edge 6 of the sheet. This also allows the plurality of lines on the next drum revolution to be positioned adjacent to the plurality of lines currently being recorded.

When using the drum for recording on continuous forms 7, the recording head is rotated to a position perpendicular to the direction of head travel and the drum is periodically incremented to feed the forms. Again, the recording head is able to record a plurality of lines of information, and recording occurs as the head moves along the surface of the drum while the drum is held stationary. Recording may occur in both directions of travel along the drum surface. After each sweep by the recording head, the drum is incremented another unit of movement corresponding to the recording width of the head.

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