Tally Genicom 6600 - Manual (Page 263)

Large Character Printing (LCP)
263
Large Character Printing (LCP)
Before you can transfer the LCP data (Large Character Printing) data to the
printer, the LCP header must be sent. The LCP header is made up of a series
of max. five characters. In the header, the printing parameters and the LCP
character size are defined. This header only needs to be transferred once,
unless settings are to be changed or the printer has been turned off.
LCP Header
Format: DLE [!] n EM
[ ] optional, does not need to be transmitted
Character meaning:
DLE (hex.10, dec.16) start character
! ASCII bidirectional printing (if transferred)
n ASCII n = "2"..."99" enlargement factor
EM (hex.19, dec.25) end character
with the help of the header, the enlargement factor is fixed to the original size.
A character in LCP mode with the size n occupies a horizontal space for n
normal character, depending on the selected character distance. At a
character distance of 10 characters/inch and an enlargement factor of 6, the
LCP font width is 6/10 inch.
The height of a LCP character is n times 1/12 inch. It is independent of the
selected line spacing. The LCP characters are printed, so that their lower
edges lie flush with the next available ground line. The result is that only the
upper edges of characters with an uneven enlargement factor can lie flush
with the line.
LCP Data
The existence of a LCP header does not mean that all subsequent characters
are printed in LCP size. The LCP mode must begin and end with the LCP
brackets SI (hex.0F, dec.15). All characters inside these brackets are printed
as LCP characters. The LCP mode is ended by all characters from hex.00 to
hex.1F.
LCP characters can be printed with character densities 10, 12, 15, 17.1 and
20 cpi. If there is a LCP line overflow, the printing procedure is automatically
started. All characters which caused the overflow are then printed as normal
characters.
Refer to the section "Secured/Unsecured Mode" at the front of the Manual for
detailed description of the secured/unsecured mode.
Data Structure
ASCII SI n ... n SI
hex. 0F n ... n 0F
dec. 15 n ... n 15
n = all printable characters (> hex.1F, dec.31)