50 Intermec EasyCoder PC4—Service Manual
Chapter 7—Main Board
7.1 Description
e main board contains the electronics and firmware that translates
incoming data on the RS-232, USB, and parallel interfaces and processes
them into a bitmap pattern, that controls the heating of the dots on the
printhead, which in turn creates the printout. It also controls the media
feed and detects various error conditions using the connected sensors and
switches. e main board has a memory where the user can store graphics
and forms. e memory can be expanded by fitting an optional memory
cartridge directly to a connector on the main board.
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