HP 20/700 - Manual (Page 39)

38 Operator Panel Chapter 2
Indicators
Three indicators provide basic status information: Library Active, Service
Required, and Open. Refer to Table 3 on page 37 for details about these
indicators.
Note When the Service Required indicator is on, contact your service
provider.
Buttons
Seven buttons are provided on the operator panel: [CAP A], [CAP B], [RESET],
[MENU], [SELECT], and the up and down arrows. The [CAP] and [RESET]
buttons let you directly manipulate the library; the remaining four buttons let
you manipulate the menus and underscored values on the graphic display.
Refer to Figure 6 on page 36 and Table 3 on page 37 for the location and a
description of each button.
Note The up arrow, down arrow, [MENU] and [SELECT] buttons
manipulate only values that are under operator control. As you
scroll down or up a list of selections, the cursor underscores these
values. (You cannot manipulate values that do not permit
underscoring.)