Printer Commands
Chapter 5
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470 Operators Manual
42
^M
Terminate Text or Data String:
Must be used to terminate a text or data string. (Same
as a carriage return or enter key on computer keyboard)
^H
Deletes The Last Printable Character Entered:
This is used only when
communicating to the printer through the keyboard. (Same as Delete key on computer
keyboard.)
^K
Print Test Label:
A test label consists of a series of diagonal lines. It is useful in
determining the condition of the dots on the printhead (equivalent to ^D11
5
).
^L
Print Blank Label:
(Equivalent to ^D12
5
)
^Q
XON:
Instructs the printer to continue sending data.
^S
XOFF:
Instructs the printer to stop sending data.
5.2
PRINTER ENQUIRIES
It is important for the host computer to know the status of the printer as labels are produced.
This facilitates security in the system and flags electrical and mechanical errors. Enquiries can
also be used to adjust the pace of the printer with that of the operator.
The 470 printer is capable of returning responses to enquiries in three different ways
depending on how the machine is programmed. (see software dip switch #1 position 1 and 2,
^D21, Section 5.3.) The text equivalent response returns a text string, giving the state of the
machine. The ^ equivalent returns an ASCII '^' response followed by the defining alpha
character. The control code equivalent returns an actual control code.
The printer will send to the host one of the following responses in response to a ^E or ^D5
5
:
Enquiry Responses
TEXT
^ALPHA or
CONTROL CODE
DEFINITION
>RESTARTED<
>READY<
>DATA ERROR<
>LOW STOCK<
>LOW TEMP<
>OVER TEMP<
>OVER VDD<
>TAKE LABEL<
^Z
^F
^U
^Y
^^
^[
^\
^V
Software has restarted
Printer is ready to process
Serial I/O error
Out of labels
Head temperature is low
Head temperature is high
VDD voltage is high
Printer senses a label is present
of the printer
Table 9
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