NCR NCR 5972, Руководство пользователя

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4-8 Chapter 4: Programming Set Up
Set Screen Save Blank
Format:
1B 09
Description: This command is intended to preserve the life of the
display hardware unit. The firmware maintains a five ‐ minute timer
that triggers this feature. The Screen Save feature can be disabled
through a command from the host software. When the feature is
not disabled, two specific options exist. The Set Screen Save Blank
operation causes the display to go blank when the timer expires.
When the firmware receives the command code, the Screen Save
mode is canceled, and the five ‐ minute timer is established. Screen
Save Blank removes power from the Retail Display, and refreshes
the display in
the same manner as the Set Low Power On
command. At power up, the timer is established at five minutes,
and Screen Save Blank is established as a default. The five minute
timer is not reset by any invalid or incorrect command.
Set Screen Save Walk
Format:
1B 0A
Description: This command causes the visible display to walk
right to left when the Screen Save timer expires (five minutes). The
characters on the display appear to walk across the corresponding
display row from right to left. The two lines in the 2x20 Display
walk in parallel completely off the left side of the display, and then
the two lines appear to come back from the right. If the display is
space filled, then no effect is perceived even though the walking is
taking place. The Screen Save Blank mode is the default mode after
power up.