Control Codes
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DC3 (Device Control-3 13H)Switches the printer from on-line to local mode. Causes the printer to i gnore
all data except a DC1. If the serial interface is selected, DC3 acts as a d ata
stream control code. When the buffer is full, the printer will send a DC 3
(XOFF) to the host computer, which will stop sending any data to the print er
until the printer sends a DC1 (XON) to the host computer.
DEL (Delete 7FH)The delete character causes the character at this location in the curr ent
character set to print. In graphics mode, the delete character is treated as
data. If it is set to ignore by the panel, then the DEL will be ignored.
ESC (Escape 1BH)Escape signals the beginning of a special sequence. Characters in a val id
escape sequence are not printed.
FF (Form Feed 0CH)Form Feed is a line terminator. All data received since the last line terminator
are printed and the paper is advanced to the next top-of-form.
HT (Horizontal Tab 09H)An HT causes one of two actions. If a horizontal tab table is present, each HT
received is replaced by the number of space characters required to move the
current print position to the next tab location. If a horizontal tab table is not
present, a space is substituted for the HT character.
LF (Line Feed 0AH)An LF code causes the line to be printed and the paper is advanced to the
next line, and the print position will remain at the same character column.
If the LF code is received in the horizontal graphics mode, paper is advanced
one or two dot rows depending on the vertical dot density.
If the LF is received in the vertical graphics format, paper is adv anced after
the six dot rows are printed.
Vertical graphics spacing is 12 LPI for low vertical density and 24 LP I for high
vertical density.
VT (Vertical Tab 0BH)A VT code causes the line to print and the paper to advance to the next tab
stop if a vertical tab is set.
If a tab position is at the current line, the paper advances to the next tab
position.
If there are no tab positions between the current line and the end of the form,
the paper advances to the next line at the current line spacing.
If the current position is at the bottom margin and a VT is sent, the paper will
advance to the next top-of-form.