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Principles of Operation
Operator Panel
The user communicates with the printer by pressing keys on the operator
panel. The keys are momentary contact switches. The operator panel
processes and sends key closure information to the controller board and
displays information from the controller on the LCD. A status indicator next to
the LCD also conveys printer status information to the user.
The LCD, status indicator, and keys are mounted on a printed circuit board
assembly enclosed in a protective housing.
♦ Data
♦ Control
♦ Key
(Switch)
Closures
CMX Controller Board
J110
Operator Panel
Figure 16. Operator Panel Functional Overview
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