Samsung 2 COLOR THERMAL PRINTER SRP-370, User Manual

58 

GS ( A pL pH n m 

[Name] 

[Format] 

[Range] 

[Description] 

[Notes] 

Execute test print. 

ASCII GS ( A pL pH n m 

Hex 1D 

28 

41 

pL 

pH 

n 

m 

Decimal 29  40  65  pL  pH  n  m 

(pL + pH x 256) = 2 (pL=2, pH=0) 

0 

≤

 n 

≤

 2, 48 

≤

 n 

≤

 50 

1 

≤

 m 

≤

 3, 49 

≤

 m 

≤

 51 

▪

 Executes a test print with a specified test pattern on a specified paper 

type (roll paper). 

    - n specifies the paper type as listed below to be tested : 

m Paper 

type 

0, 48

1, 49

2, 50

Paper roll 

    - m specifies a test pattern as listed below : 

m Test 

pattern 

1, 49

Hexadecimal dump 

2, 50

Self Test Printing 

▪

 The printer executes a hardware reset after the procedure to place the image into the non-volatile 

memory. The printer clear the receive and print butters, and resets all settings (user-defined 

characters, macros, and the character styles) to the mode that was in effect at power on. 

GS ( D pL pH m [a1 b1]...[ak bk] 

[Name] 

[Format] 

[Range] 

[Default] 

[Description] 

[Notes] 

Enable/disable real-time command. 

ASCII 

GS

( 

D 

pL  pH  m

[a1 b1]...[ak bk] 

Hex 

1D

28 44 pL pH m

[a1 

b1]...[ak 

bk] 

Decimal

29  40 68 pL pH m

[a1 

b1]...[ak 

bk] 

3 

≤

 (pL + pH x 256) 

≤

 65535 

m=20 

a=1, 2 

b=0, 1, 48, 49 

a 

Type(s) of real-time commands 

Default 

1 

DLE DC4 fn m t

 (fn=1) : Generate pulse in real-time

Enable (b=1)

2 

DLE DC4 fn a b

 (fn=2) : Execute power-off sequence

disable (b=0)

▪

 Enable or disables the following real-time commands. 

a b Function 

0, 48

DLE DC4 fn m t

 (fn=1) : Not processed (disabled) 

1 

1, 49

DLE DC4 fn m t

 (fn=1) : Processed (enabled) 

0, 48

DLE DC4 fn a b

 (fn=2) : Not processed (disabled) 

2 

1, 49

DLE DC4 fn a b

 (fn=2) : Processed (enabled) 

    - pL, pH specifies (pL + pH x 256) as the number of bytes after pH (m 

and [a1 b1]...[ak bk]). 

    - a specifies the type of real-time command. 

    - b specifies enable or disable. 

▪

 If bit image data accidentally includes a character string with this command, it is 

recommended to use this command in advance to disable the real-time command. 

59

GS ( E pL pH fn [parameter] 

[Name] 

[Description]

Customize NV memory area. 

▪

 Customize the NV user memory area. The table below explains the 

functions available in this command. Executes commands related to the 

user setting mode by specifying the function code fn. 

fn Format 

No.

Function 

1 

GS ( E pL pH fn d1 d2 

1 

Changes into the user setting mode. 

2 

GS ( E pL pH fn d1 d2 d3 

2 

Ends the user setting mode session. 

(Performs a soft reset.) 

3 

GS ( E pL pH fn [a1 b18...b11]... 

[ak bk8...bk1] 

3 

Sets value(s) for the memory switch. 

4 

GS ( E pL pH fn a 

4 

Transmits the settings of the memory 

switch to the host. 

11 

GS ( E pL pH fn a d1...dk 

11

Sets the communication conditions for 

the serial interface. 

12 

GS ( E pL pH fn a 

12

Transmits the communication 

conditions for the serial interface. 

[Notes] 

▪

 pL, pH specifies (pL + pH x 256) as the number of bytes after pH (fn and 

[parameter]). 

▪

 The user setting mode is a special mode to change the values in the NV 

user memory with this command. 

▪

 In Function 2, the printer performs software reset. Therefore, the printer 

clears the receive and print buffers, and resets all settings (user-defined 

characters, macros, and the character style) to the mode in effect at power 

on. 

▪

 Frequent write commands by this command, may damage the NV memory. 

Therefore, it is recommended to write to NV memory no more than 10 times 

a day. 

▪

 While processing this command, the printer is BUSY while writing data to 

the user NV memory and stops receiving data. Therefore it is prohibited to 

transmit data including the real-time commands during the execution of this 

command.