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Head for Magnetic Drum Printer

IP.com Disclosure Number: IPCOM000040141D
Original Publication Date: 1987-Sep-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 2 page(s) / 24K

Publishing Venue

IBM

Related People

Bohg, A: AUTHOR

Abstract

Read/write head 1 is shown to slide on magnetic drum surface 2. To prevent the accumulation of dust particles between surface 2 and head 1, the latter is embedded in a synthetic material 3, forming an edge that contacts surface 2. The illustrated edge is about 0.5 to 1 mm wide and 0.2 to 0.5 mm high and extends perpendicularly to the drum's direction of rotation. The height dimensions, as indicated, permit the accumulation of dust particles in the recess thus formed. The contact area of the surface between head and drum remains constant, despite wear of the head/plastic assembly, thus guaranteeing long-term stability.

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Head for Magnetic Drum Printer

Read/write head 1 is shown to slide on magnetic drum surface 2. To prevent the accumulation of dust particles between surface 2 and head 1, the latter is embedded in a synthetic material 3, forming an edge that contacts surface 2. The illustrated edge is about 0.5 to 1 mm wide and 0.2 to 0.5 mm high and extends perpendicularly to the drum's direction of rotation. The height dimensions, as indicated, permit the accumulation of dust particles in the recess thus formed. The contact area of the surface between head and drum remains constant, despite wear of the head/plastic assembly, thus guaranteeing long-term stability.

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