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Single or Multiple Corona Wire CRU (Customer Replaceable Unit) Disclosure Number: IPCOM000128951D
Original Publication Date: 2005-Sep-21
Included in the Prior Art Database: 2005-Sep-21
Document File: 2 page(s) / 28K

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Replacement of a Single or Multiple Corona Wire CRU (Customer Replaceable Unit) within Corona Assembly Housing

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Single or Multiple Corona Wire CRU (Customer Replaceable Unit)

Disclosed is a system for allowing a printer operator or service representative to replace a single or multiple corona wire(s) within the corona assembly, without replacing the more costly corona assembly housing. Often times the entire corona assembly is considered a CRU, which is usually an operator or service representative's task.

The CRU 9 described in this publication, Figure 1, allows the wire(s) themselves, to be replace easily utilizing the existing corona assembly housing. The ends of the corona wire(s) are captured in a drop-in designed holder 10, as shown in Figure 1, at each end of the wire, for speed and ease of use. One end of the corona wire 11 has a tension (coil) spring attached which provides the required tension on the wire when the CRU is positioned in its operating position. The other end of the wire 12, has an eyelet with the wire attached to it.

To install the CRU 9, the screw which holds the end cap 16, Figure 2, in place, should be loosened and the end cap moved inward, as far as it will travel. The printer operator handles the CRU 9, by grasping both holders 10, and positions them in the corona assembly housing 13, Figure 2, first positioning one holder in receiver 14 followed by placing the other holder in receiver 15. Once both holders are in position, the end cap 16 can be moved outward, applying tension to the corona wire(s). The screw can then be tightened once the end...