Menu operation, Menu commands, Chapter – CognitiveTPG DLXi User Manual
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Chapter
Revision F, January 2012, CognitiveTPG
146
5
Menu Commands
A menu lets the user control the printer at print time through a set of
predefined choices. Menus are typically used when the printer is
connected to a simple controlling device, such as a keyboard/display
unit.
IMPORTANT!
Menu programming is inherently complex, and is only useful if the user must
control the printer with a non-programmable device (such as a dumb terminal
or keyboard). As a general rule, CognitiveTPG does not recommend
programming menus in the printer if there is processing power available in the
host.
Menus are stored objects. Familiarize yourself with the proper use of stored
objects before attempting to program menus.
Menu Operation
During menu execution, the printer sends text descriptions associated
with menu items ("prompts") to the printer serial port and waits for
user input. The user responds to the menu by making a selection,
which the controller then sends back to the printer by way of the serial
port. Choose a menu using one of the following methods:
Scroll to the item and selecting it using keys as defined by the
Enter the number of a menu item. All menu items have a single-digit
number associated with them. The printer assigns this number
automatically, based upon the menu item location within the menu.
Menu items that do not have a visible prompt are still selectable by
item number.
The printer executes printer commands contained in the menu
definition based on the user's selection. Each menu item can have one
or many standard printer commands associated with it; thus, the
printer can perform complex tasks in response to a menu selection.