参数资料
型号: 02-ATB-1200
英文描述: RS232 INTERFACE PCB FOR
中文描述: RS232接口电路板的
文件页数: 15/15页
文件大小: 1095K
代理商: 02-ATB-1200
ATB1200 User Guide Page 9 of 15
5
OPERATING MODES
The APS ELM205-ST printer mechanism has 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 voltage and the head temperature.
It is not possible to print partial lines in isolation: if such a line remains in the buffer, it will not be
printed until flushed out by a line terminator or some following data. Any following data will be printed
on the next line. The paper may only be fed through the printer in the forward direction.
Alternative printing modes, including graphics, are invoked by 'Escape' sequences. Control codes
and status report protocols are described in detail in the Programmers Guide, available as a separate
document.
5.1
DATA BUFFER
The ATB1200 has a nominal 20k byte buffer to optimise throughput: this enables data to be received
into the buffer while previous lines are being printed.
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.
5.2
SPOOLING MODE
In spooling mode data is received and stored, but not printed. This is useful when printing needs to be
suppressed during data transfer (for example in mobile radio systems); or when the paper needs to
be changed, or a jam cleared, and the buffer contains data.
If selected, the buffer will automatically enter spooling mode on a paper out condition; it can also enter
spooling mode by a command from the host.
The spooling mode is exited by a command from the host, or the paper feed button being double-
clicked. Any stored data will then be printed out.
5.3
CHARACTER PRINTING
Several character fonts are supported, the default 32-column character set being formed from a
24x10 dot matrix. The standard 224 IBM character set (Code Page 437) includes graphics
characters, which are extended to link up in both axes where appropriate. The character set has been
modified to include the Euro symbol (‘’) at position 80H (128 Decimal), in place of the usual capital C
with cedilla (‘’).
Text can be printed in various combinations of single or double width, single or double height,
inverted, underlined, and with other attributes. Text and dot- addressable graphics can be mixed
within a line.
5.4
GRAPHICS PRINTING
Various dot-addressable graphics modes are supported, at up to 384 dots per line. Refer to the
Programmers Guide for full details.
相关PDF资料
PDF描述
05266.123.204 6 mm2, COPPER ALLOY, WIRE TERMINAL
05266.123.211 6 mm2, COPPER ALLOY, WIRE TERMINAL
05267.123.211 1 mm2, BRASS, TIN FINISH, WIRE TERMINAL
05363.123.242 1 mm2, BRASS, SILVER FINISH, WIRE TERMINAL
05562.123.211 1.5 mm2, BRASS, TIN FINISH, WIRE TERMINAL
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