Oil Flow Restrictor
Original Publication Date: 1982-Sep-01
Included in the Prior Art Database: 2005-Feb-10
In wire matrix printers, individual print actuators drive a print wire forward by the energization of a solenoid. After the system operates for a period of time, fabric particles and ink from the ribbon become packed around the wire. If this material is allowed to dry and harden, the wire will be seized and the solenoid will not be able to drive it. To prevent this, a minute quantity of oil is supplied to keep the contaminant material soft and fluid.