EPM203-MRS
- Technical reference -
Rev. G
Page 25
Advanced Printing Systems
ESC o n
Description: Sets the optocoupler type.
Format:
<1Bh> <6Fh> <n>
Comments: n = 0: support for reflective optocoupler activated (default).
n = 1: support for transmissive optocoupler activated.
If the default optocoupler is replaced by the user, the distance between the opto and the
printing line can be adjusted by a control code – see “Hole / Black mark detection
commands” section.
Note:
Transmissive optocouplers are generally used in applications requiring hole or black mark
detection.
GS O n1 n2
Description: Starts
the
optocoupler calibration procedure.
Format:
<1Dh> <4Fh> <n1> <n2>
Comments: n1 specifies the length of paper loading before the actual calibration is done.
n2 specifies the length of paper used to calibrate the opto.
Length
is
in
centimeters.
For
details,
please
contact
A.P.S
for opto calibration application note.
ESC O
Description: Sends optocoupler parameters.
Format:
<1Bh> <4Fh>
Comments: The printer responds by sending 6 bytes :
- opto type (0 for reflective, 1 for transmissive)
- black level
- mark/backing level
- paper level
- paper presence threshold
- mark detection threshold
All these parameters are determined automatically by the opto calibration procedure and
should provide correct operation for most applications. This command is intended for test
purposes.
GS o
Description: Sends the current level of the opto.
Format: <1Dh>
<6Fh>
Comments: The printer responds with a byte representing the opto level.
Содержание EPM203-MRS
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