Salter Brecknell CP130 - Manual (Page 7)

CP130 User Guide Page 7 of 11
6 PRINTER OPERATION AND PROGRAMMING
The CP130 utilises a Fujitsu FTP-628MCL103 printer mechanism, with a fixed (parallel) print head
with 384 horizontally-arranged thermal elements. The paper is advanced by a stepper motor, and
printing takes place in a single dot row for each step of the paper. Each printed dot is approximately
1/8 mm square. The printing speed and dot density are controlled according to the power supply
voltage and the head temperature.
Various printing modes, including graphics, are invoked by 'Escape' sequences. Control codes and
status report protocols are described in detail in the Programmers' Guide, available separately.
6.1 DATA
BUFFER
The CP130 has a nominal 20k byte buffer to optimise throughput: this enables data to be received
into the buffer while previous lines are being printed. Printing will be initiated on receipt of a valid
logical line of data or a complete graphics pattern.
The buffer may be cleared by data command or by a hardware reset. A partially full line will be
printed on receipt of an appropriate control code, or after a programmable timeout delay.
6.2 SPOOL
MODE
Spool mode can be entered by:
a command from the host;
Paper Out condition or Head Up condition being sensed;
an error condition (e.g. head over temperature, over voltage, etc).
In spool mode, the buffered data are stored without being printed until the mode is exited by:
a command from the host;
the 'causing condition' (e.g. Paper Out or Head Up) being cleared;
the paper feed button being double-clicked.
6.3
CHARACTER PRINTING AND FONTS
The default 32-column character set is formed from a 24x10 dot matrix, and is based on the industry
standard IBM® character set Code Page 437. This character set has been modified to include the
Euro symbol (‘€’) at position 80H (128 Decimal), in place of the usual capital C with cedilla (‘Ç’).
Various combinations of single or double width, single or double height, inverted, underlined, and
other attributes may be mixed within a line.
Customised fonts may be created using the Font Editor Utility, and downloaded to the CP130. Only a
single custom font may be loaded in the printer at one time, and having a custom font installed
prevents the internal fonts from being accessed. Depending on the attributes of the custom font,
graphics operations may be affected.
6.4
GRAPHICS PRINTING AND OTHER PROGRAMMING MODES
Various dot-addressable graphics modes are supported, at up to 384 dots per line. Refer to the
Programmer’s Guide for full details of this and other advanced programming modes.