Posiflex KB-6600 - Manual (Page 5)

Part 5
programmable keyboard, the user should notice that at the bottom of each key
top, one of the four walls is springy and in the hole on the keyboard to accept
the bottom of the key top there is a protuberance at the lower side. The user
should match the springy wall of key top against the protuberance in the hole
(ref. Fig. 3-5) and press the key top down till a click sound is heard. The key
cap (except the blank key) should be placed after the printed label is stuck onto
the key top.
Furthermore, there are blank keys available which the user can use to
form visible partitions or clusters of key tops on the programmable keyboard.
When the user wants to make a group of keys on the programmable keyboard
clearly separated from the rest part of the keyboard for certain specific
application, he/she can use the blank keys to replace the normal individual
keys around the area. The top surface of a blank key is at the ground level of
the key stroke for other keys (ref. Fig. 3-7). The blank key will not be pressed
down when pressed. The user may order for accessional quantity of the blank
keys as option for his/her application.
There are also double key available for the user to configure the
programmable keyboard such that the most frequently used keys may occupy
larger areas. The double key occupies two adjacent positions and uses only the
bottom position for key content (ref. Fig. 3-4). An example of using the above
mentioned alternate key tops is shown in Fig. 3-7
Fig. 3-3 Fig. 3-4
Fig. 3-5
Springy
wall
protuberance
Fig. 3-6
Numerical keys
Single key
Double key
Fig. 3-7