发明名称 |
Printer coil temperature sensor and method |
摘要 |
A line printer having a hammerbank with hammers that are held by a permanent magnet and released by electrically driven coils. The temperature of the coils is determined by the relative resistance of the coils to provide an output equivalent to the temperature of said coils. The resistance is determined as a function of the current through the coils or voltage of the coils which is converted from an analog to a digital value. The attendant method of determining temperature of the coils in the hammerbank is by comparing a pre-established current or voltage value based upon a pre-established temperature of the coil with the current passing through the coil during operation of the hammerbank. The comparison of the current passing through the coil during operation with the pre-established current is provided to a controller for controlling the printer in response to the current differential between the currents which is in turn a function of the operating temperature. <IMAGE> |
申请公布号 |
EP0774359(A3) |
申请公布日期 |
1998.06.03 |
申请号 |
EP19960117553 |
申请日期 |
1996.11.01 |
申请人 |
PRINTRONIX, INC. |
发明人 |
RYAN, ROBERT P.;BARRUS, GORDON B.;PHAM, TIET |
分类号 |
B41J9/52 |
主分类号 |
B41J9/52 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|