Samsung SRP-500 - Manual (Page 23)

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DLE EOT n
[Name] Real-time status transmission
[Format] ASCII DLE EOT n
Hex 10 04 n
Decimal 16 4 n
[Range] 1 ≤ n ≤ 4
[Description] Transmits the selected printer status specified by n in real
time, according to the following parameters:
n = 1: Transmit printer status
n = 2: Transmit off-line status
n = 3: Transmit error status
n = 4: Transmit paper roll sensor status
[Notes]
• This command should not be used within the data sequence of another
command that consists of 2 or more bytes. For example, If you attempt to
transmit ESC 3 n to the printer, but DTR (DSR for the host computer) goes
to MARK before n is transmitted and then DLE EOT 3 interrupts before n
is received, the code <10>H for DLE EOT 3 is processed as the code for
ESC 3
<10>H.
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n = 1 : Printer status
Bit Off/On Hex Decimal Function
0 Off 00 0 Not used. Fixed to Off.
1 On 02 2 Not used. Fixed to On.
Off 00 0 Drawer kick-out signal is LOW (connector pin 3) 2
On 04 4 Drawer kick-out signal is HIGH (connector pin 3)
Off 00 0 On-line. 3
On 08 8 Off-line.
4 On 10 16 Not used. Fixed to On.
5 Off 00 0 Not used. Fixed to Off.
6 Off 00 0 Not used. Fixed to Off.
7 Off 00 0 Not used. Fixed to Off.
n = 2 : Off-line status
Bit Off/On Hex Decimal Function
0 Off 00 0 Not used. Fixed to Off.
1 On 02 2 Not used. Fixed to On.
2 Off 00 0 Cover is closed (front & rear)
On 04 4 Cover is open (front or rear)
Off 00 0 Paper is not being fed by using the paper feed button. 3
On 08 8 Paper is being fed by the paper feed button.
4 On 10 16 Not used.
Off 00 0 Fixed to On. 5
On 20 32 No paper-end stop.
Off 00 0 Printing stops due to paper end. 6
On 40 64 No error. Error occurs.
7 Off 00 0 Not used. Fixed to Off.
Bit 5 : On (printing stops due to paper-end) when printing stops due to paper-
end detected by the paper-end sensor or the paper near-end enabled
by using the ESC c 4.