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Printek Emulation

Print Buffer Status String

The print buffer status will be retuned as a four digits representing the number bytes in the buffer that remain to

be processed, divided by 32. For example, if b1-b4 = “0020”, this would indicate that there are at least 20 x 32,

or 640, bytes remaining to be processed. A value of “0000” would indicate that the buffer is empty.

Magnetic Card Reader Status String

The MCR status indicates the presence of a reader in the printer, and if present, its current status.

m “0” if MCR is present. “X” if not installed in printer.

s1, s2 Number of seconds remaining for a good card swipe

before the timeout specified in the read command

occurs. If this value is “00” and a non-zero value for t

is returned, the reader will not time out and must be

cancelled by a Cancel Read Magnetic Card Reader

command.

t The tracks to be read as specified by the read

command. If this value is zero and m and s1, s2 are

also zero, this indicates that the reader is present but

currently disabled (no read pending).

Battery Voltage Status String

This string contains the current battery voltage in millivolts. A string where v1 through v4 contains “7123”

would indicate that the battery voltage is currently 7123 millivolts, or 7.123 volts.

Example: The following control code will return the status of the print buffer, the magnetic card reader, and the

battery voltage.

Control Code: SYN

Hexadecimal: 16

The three sample status strings that would be returned in response to this command are as follows.

Print Buffer Status: ESC B 0 0 4 2 CR LF 1,344 bytes in input buffer.

Hexadecimal: 1B 42 30 30 34 32 0D 0A

MCR Status: ESC M 0 1 2 4 CR LF Twelve seconds remain to read 1 & 2.

Hexadecimal: 1B 4D 30 31 32 34 0D 0A

Battery Voltage: ESC V 7 1 2 3 CR LF Battery Voltage is 7.123 Volts

Hexadecimal: 1B 56 37 31 32 33 0D 0A

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 60 61

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