Intermec EasyCoder PX4i Service Manual page 30

Chapter 2 — Front and Keyboard
Keyboard
Keyboard Plate
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The keyboard is of membrane switch type and is glued to the keyboard
plate. There are 54 switches, but only 23 of these are used unless the
printer has an alphanumeric overlay (Fingerprint only). One switch is a
Shift key, that provides a dual functionality to each of the other keys. The
keys have fi xed functions in the immediate and setup modes, but can also
be assigned various functions in Intermec Fingerprint programs. In IPL,
the keys are not user-programmable.
A fl at cable connects the membrane-switch keyboard to P2 on the console
pcb.
The keyboard plate keeps the assembly together and to affi x it in the cavity
of the front moulding. There are one slot for the display and another for
the cable running from the membrane-switch keyboard to the console pcb.
Two brackets at the lower edge are used to connect the plate to the front
moulding using two 2 mm hexagon grub screws.
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