IBM 4840-563 System Reference Manual page 60

Causes the display to reset some programmable parameters back to the
power-on state, which is defined as:
v Cursor on.
v Scrolling alphanumeric message off.
v All pixels of (all character positions are filled with X'20').
v Write position for next write is at position X'00' (top left).
v Default code page (437) selected.
v DC2 mode enabled.
v Default (Logic Controls) emulation mode selected.
v Brightness set to 100%.
v IBM user-defined characters are not erased. The Logic Controls user-defined character key
is reset.
All byte values between X'00' and X'1F' not defined in this section are ignored by the display in Logic Controls
mode. User-defined characters in the IBM mode that have not been defined previously are spaces.
APA commands
This section describes the following APA VFD commands: v Backspace Without
Deleting v Line Feed v Carriage Return v Clear Display v Display Position v Delete to
End of Line v Dimming v Cursor Mode v Screen Mode v Horizontal Scroll v Display
Mode v User Definable Font v Graphic Display Mode v Double Size Letter in
Horizontal v Character Code Set of Full Size Letter v Character Code Set of Half Size
Letter v Horizontal Scroll on All Lines v Font Selection
Note: The command code format shown in the following topics is in hexadecimal
Backspace without deleting
Purpose:
Line feed
Purpose:
Carriage return
SurePOS 500 Model XX3 Technical Reference, v 1.3
format.
The write-in position is shifted to the left one digit and the displaying screen is
not changed. This command is ignored when the write-in position is on the
least significant digit.
The write-in position is shifted to the next row on the same digit position. If the
write-in position is on the bottom row, the displayed character is scrolled up to
the upper row and all characters on the bottom row are cleared. The write-in
position is not changed. The displayed character under the screen mode of the
24x24-dot 1 row+16x16-dot 2 rows is not scrolled up from the row of 16x16-
dot format to 24x24-dot.
08
0A
81
Page 60 of