Samsung Printer SRP 250 Series User Guide

SRP-250  
SERIES  
1 STATION PRINTER  
Operators Manual  
All specifications are subjected to change without notice  
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Table of Contents  
CHAPTER 1. UNPACKING...................................................................3  
1-1. CHECKING THE CONTENTS OF THE PRINTER BOX...............................3  
1-2. LOCATING THE PRINTER .................................................................3  
1-3. FUNCTIONS ..................................................................................4  
CHAPTER 2. CONNECTING THE CABLES.........................................5  
2-1. CONNECTING THE AC ADAPTER TO THE PRINTER..............................5  
2-2. CONNECTING INTERFACE CABLE AND DRAWER  
CABLE TO THE PRINTER ................................................................6  
CHAPTER 3. INSTALLING THE ROLL PAPER ...................................7  
3-1. RIBBON CASSETTE INSTALLATION ...................................................7  
3-2. ROLL PAPER INSTALLATION ............................................................8  
CHAPTER 4. SETTING THE DIP SWITCHES....................................12  
CHAPTER 5. HEXADECIMAL DUMPING...........................................15  
CHAPTER 6. THE SELF TEST...........................................................16  
CHAPTER 7. CODE TABLE...............................................................17  
CHAPTER 8. CONTROL COMMANDS...............................................22  
APPENDIX A ......................................................................................39  
CONNECTORS....................................................................................39  
Interface Connector......................................................................40  
Drawer Connector ........................................................................42  
APPENDIX B ......................................................................................43  
SPECIFICATION ..................................................................................43  
APPENDIX C ......................................................................................44  
REMOVING JAMMED PAPER (A)............................................................44  
REMOVING JAMMED PAPER (B)............................................................46  
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Chapter 1. Unpacking  
1-1. Checking the Contents of the printer box  
After unpacking the unit, check that all the necessary accessories are included in the  
package.  
1-2. Locating the printer  
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Avoid locations in direct sunlight or subject to excessive heat.  
Avoid using or storing the printer in the places subject to excessive moisture.  
Do not use or store the printer in a dusty or dirty area. Avoid places subject to  
intense vibration or shock.  
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Choose a stable and horizontal place for proper use of the printer.  
Make sure that there is enough space around the printer so that it can be used  
easily.  
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1-3. Functions  
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The power switch is used to turn the printer on and off.  
The FEED button is used to feed roll paper.  
The POWER light (green) is on when the printer is turned on and is off when the  
printer is turned off.  
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The ERROR light (red) is on when the printer cover is opened.  
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Chapter 2. Connecting the cables  
2-1. Connecting the AC adapter to the printer  
1). Make sure that the printer is turned off.  
2). CHECK the label on the AC adapter to make sure the voltage required by the AC  
adapter matches that of your electrical outlet.  
3). Plug the DC cord connector into the printers power connector.  
4). Plug the AC adapter power cord into the wall outlet.  
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2-2. Connecting Interface Cable and Drawer  
Cable to the printer  
Connect the Host Computer(POS/ECR) to the printer using an interface cable that matches  
the specifications of the printer and the Host computer(POS/ECR). Be sure to use a drawer  
that matches the printer's specification.  
1). Turn off the printer and the Host computer(POS/ECR).  
2). Plug the serial interface cable connector into the printers interface connector, then  
tighten the screws on both sides of the connector. In case of the parallel interface,  
squeeze the wire clips on the printer together until they lock in place on both sides  
of the connector.  
3). Plug the drawer cable into the drawer kick-out connector on the back of the printer  
next to the serial/parallel connector. Do not connect a telephone line to the drawer  
kick-out connector; otherwise the printer and the telephone line may be damaged.  
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Chapter 3. Installing the roll paper  
3-1. Ribbon Cassette Installation  
1). Before inserting the ribbon cassette, turn the knob counterclockwise to prevent  
twisting the ribbon.  
2). Insert the ribbon cassette as shown below and pay particular attention to the  
placement of the ribbon behind the Print Head.  
3). During inserting the ribbon cassette, turn the knob counterclockwise again to  
make sure the ribbon moves freely in the cassette.  
NOTE : Malfunctions and other problems may arise if other than the ribbon  
cassette samsung supplied is used. Samsung does not warrant  
against problems arising from the use of other than the ribbon  
cassette samsung supplied  
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3-2. Roll Paper Installation  
Be sure to use roll paper that matches the printer's specifications.  
1). Make sure that the printer has no received data. Otherwise, data may be lost.  
2). Open the printer cover and remove the used paper roll core if there is one.  
3). To use a new roll paper, unroll the paper and tear off the end of the paper correctly.  
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4). Insert the Shaft-Pulley into the hole of roll paper core and load the roll paper on  
the paper holder. Don't forget to turn the printer's POWER on at this time.  
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5). Insert the end of the roll paper straight into the paper inlet. The printer feeds  
the paper automatically(All SRP-250 model) and then the printer will cut the paper  
automatically(SRP-250C/CP and SRP-250D/DP only).  
6). Tear off the paper as shown, if necessary.  
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7). Insert the end of the roll paper into the groove on the Roller-Pulley and wrap  
the paper around the spool two or three times.  
8). Load the Roller-Pulley onto the groove of the Guide-Pulley.  
9). Close the printer cover.  
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Chapter 4. Setting the DIP switches  
The DIP switches are located on the bottom of the printer. The DIP switches are used to set  
the printer to perform various functions. Follow these steps when changing DIP switch  
settings :  
1. Turn the printer power switch off.  
2. Turn the printer over and remove the dip switch cover.  
3. Flip the DIP switches using tweezers or another narrow-ended tool. Switches  
are on when up and off when down in the figure below.  
4. The new setting takes effect when you turn on the printer.  
NOTE : Always change DIP switch settings when the printer is turned off. Changes made  
with the power on have no effect until you turn the printer off and then on again.  
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Serial Interface Specification  
DIP Switch 1 Functions  
SW  
1
FUNCTION  
Data Receive Error  
Hand Shaking  
ON  
OFF  
Print  
DTR/DSR  
8 bits  
No  
DEFAULT  
OFF  
Ignore  
XON/OFF  
7 bits  
¡
°
¡
±
2
3
4
OFF  
OFF  
OFF  
Word length  
Parity check  
Yes  
5
6
7
8
Parity selection  
Baud Rate selection  
EVEN  
ODD  
OFF  
OFF  
OFF  
OFF  
Refer to the following table  
ON OFF  
Hexadecimal dump  
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NOTE  
:
When the word length is 7 bits, you can not parity check OFF status.  
Baud rate selection  
Transmission speed  
1200 baud  
SW – 6  
ON  
SW – 7  
ON  
2400 baud  
4800 baud  
9600 baud  
OFF  
ON  
OFF  
ON  
OFF  
OFF  
DIP Switch 2 Functions  
MODE  
Epson  
Citizen  
Star  
SW – 1  
OFF  
ON  
SW – 2  
OFF  
OFF  
ON  
OFF  
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Parallel Interface Specification  
Dip Switch Set Function  
SW  
1
FUNCTION  
Reserved  
ON  
OFF  
DEFAULT  
OFF  
2
Reserved  
OFF  
3
Reserved  
OFF  
4
Reserved  
OFF  
5
Reserved  
OFF  
6
Mode Selection  
Refer to the following table  
OFF  
7
OFF  
8
Hex Dump  
ON  
OFF  
OFF  
Mode Selection  
MODE  
Epson  
Star  
SW – 6  
OFF  
ON  
SW – 7  
OFF  
OFF  
ON  
Citizen  
OFF  
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Chapter 5. Hexadecimal Dumping  
This feature allows experienced users to see exactly what data is coming to the printer. This  
can be useful in finding software problems. When you turn on the hexadecimal dump function,  
the printer prints all commands and data in hexadecimal format along with a guide section to  
help you find specific commands.  
To use the hexadecimal dump function, follow these steps:  
1.  
2.  
3.  
4.  
After you make sure that the printer is off.  
Set DIP switch 8 to On.  
Turn on the printer, then the printer enters the hexadecimal dump mode.  
Run any software program that sends data to the printer. The printer will print all the  
codes it receives in a two-column format. The first column contains the hexadecimal  
codes and the second column gives the ASCII characters that correspond to the codes.  
1B 21 00 1B 26 02 40 40  
02 0D 1B 44 0A 14 1E 28  
00 01 0A 41 0D 42 0A 43  
. ! . . & . @ @  
. . . D . . . . (  
. . . A . B . C  
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A period(.) is printed for each code that no ASCII equivalent.  
During the hex dump, all commands except DLE EOT and DLE ENQ are  
disabled.  
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Insufficient print data to fill the last line can be printed by pressing the feed  
button.  
5.  
6.  
When the printing finishes, turn off the printer, and then change DIP switch 8 to OFF.  
Turn on the printer and then the hexadecimal mode is off.  
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Chapter 6. The self test  
The self-test checks whether the printer has any problems. If the printer does not function  
properly, contact your dealer. The self-test checks the following;  
1.  
2.  
3.  
Make sure paper roll has been installed properly.  
Turn on the power while holding down the FEED button. The self-test begins.  
The self-test prints the current printer status, which provides the control ROM  
version and the DIP switch setting.  
4.  
After printing the current printer status, self-test printing will print the following,  
and pause (The PAPER LED light blinks).  
Self-test printing.  
Please press the FEED button  
5.  
6.  
Press the FEED button to continue printing. The printer prints a pattern using  
the built-in character set.  
The self-test automatically ends and cuts the paper after printing the  
following.  
*** completed ***  
The printer is ready to receive data when it completes the self-test.  
16  
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Chapter 7. Code Table  
The following pages show the character code tables. To find the character corresponding to a  
hexadecimal number, count across the top of the table for the left digit and count down the left  
column of the table for the right digit. For example, 4A = J.  
Page 0 ( PC437 : USA, Standard Europe)  
( International Character Set : USA )  
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Page 2 ( PC850 : Multilingual )  
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Page 3 ( PC860 : Portuguese )  
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Page 4 ( PC 863 : Canadian - French )  
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Page 5 ( PC 865 : Nordic )  
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International Character  
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Chapter 8. Control Commands  
Command Notation  
[Name]  
The name of the command.  
[Format]  
The code sequence.  
ASCII indicates the ASCII equivalents.  
Hex indicates the hexadecimal equivalents.  
Decimal indicates the decimal equivalents.  
[ ] k indicates the contents of the [ ] should be repeated  
k times.  
[Range]  
[Description]  
Gives the allowable ranges for the arguments.  
Describes the function of the command.  
Explanation of Terms  
LSB  
Least Significant Bit  
HT  
[Name]  
[Format]  
Horizontal tab.  
ASCII  
HT  
09  
9
Hex  
Decimal  
[Description]  
Moves the print position to the next horizontal tab position.  
LF  
[Name]  
Print and line feed.  
[Format]  
ASCII  
Hex  
Decimal  
LF  
0A  
10  
[Description]  
Prints the data in the print buffer and feeds one line  
based on the current line spacing.  
CR  
[Name]  
Print and carriage return.  
[Format]  
ASCII  
Hex  
Decimal  
CR  
0D  
13  
[Description]  
This command is set according to the DIP switch 1-1 setting  
at power-on. This command is only available with a parallel  
interface.  
· This command prints the data in the print buffer and does not feed the paper.  
· Sets the print starting position to the beginning of the line.  
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DLE EOT n  
[Name]  
Real-time status transmission.  
[Format]  
ASCII  
Hex  
Decimal  
1 £ n £ 4  
DLE  
10  
16  
EOT  
04  
4
n
n
n
[Range]  
[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.  
n = 1 : Printer status  
Bit  
0
1
Off/On  
Off  
On  
Hex  
00  
02  
Decimal  
Function  
0
2
0
Not used. Fixed to Off.  
Not used. Fixed to On.  
Drawer open/close signal is LOW  
(connector pin 3).  
2
Off  
00  
On  
04  
4
Drawer open/close signal is HIGH  
(connector pin 3).  
3
Off  
On  
On  
Off  
On  
-
00  
08  
10  
00  
20  
-
0
8
16  
0
32  
-
On-Line.  
Off-Line.  
Not used. Fixed to On.  
Not waiting for on-line recovery.  
Waiting for on-line recovery.  
Undefined.  
4
5
6
7
Off  
00  
0
Not used. Fixed to Off.  
n = 2 : Off-line status  
Bit  
0
1
Off/On  
Off  
On  
Hex  
00  
02  
-
Decimal  
Function  
0
2
-
Not used. Fixed to Off.  
Not used. Fixed to On.  
Undefined.  
2
-
3
Off  
00  
0
Paper is not being fed by using the PAPER  
FEED button.  
On  
08  
8
Paper is being fed by the PAPER FEED  
button.  
4
5
On  
Off  
On  
Off  
On  
Off  
10  
00  
20  
00  
40  
00  
16  
0
32  
00  
64  
00  
Not used. Fixed to On.  
No paper-end stop.  
Printing stops due to paper end.  
No error.  
Error occurs.  
Not used. Fixed to Off.  
6
7
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n = 3 : Error status  
Bit  
0
1
Off/On  
Off  
On  
Off  
On  
-
On  
Off  
On  
Off  
Hex  
00  
02  
00  
04  
-
10  
00  
40  
00  
Decimal  
0
2
0
4
-
16  
0
64  
0
Function  
Not used. Fixed to Off.  
Not used. Fixed to On.  
No mechanical error.  
Mechanical error occurred.  
Undefined.  
Not used. Fixed to On  
No auto-recoverable error.  
Auto-recoverable error has occurred.  
Not used. Fixed to Off.  
2
3
4
6
7
Bit 2:  
Mechanical errors include home position, carriage sensor, and slip  
ejection errors.  
Bits 2 and 3:  
If these errors occur due to paper jams or the like, it is possible to  
recover by correcting the cause of the error and executing DLE ENQ  
n (1 £ n £ 2). If an error due to a circuit failure (e.g. broken wire)  
occurs, it is impossible to recover.  
Bit 6:  
If the print head temperature becomes high, bit 6 is transmitted until  
the print head temperature drops sufficiently. The printer automatically  
recovers from this error.  
n = 4 : Continuous paper sensor status  
Bit  
0
1
Off/On  
Off  
On  
Off  
On  
Off  
On  
On  
Off  
On  
On  
On  
Off  
Hex  
00  
02  
00  
04  
00  
08  
10  
00  
20  
00  
40  
00  
Decimal  
0
2
0
4
0
8
16  
0
32  
0
64  
0
Function  
Not used. Fixed to off.  
Not used. Fixed to On.  
2
Paper roll end sensor. Paper adequate.  
Paper roll end sensor. Paper end.  
Paper roll end sensor. Paper adequate.  
Paper roll end sensor. Paper end.  
Not used. Fixed to On.  
Paper roll end sensor. Paper present.  
Paper roll end sensor. No paper.  
Paper roll end sensor. Paper present.  
Paper roll end sensor. No paper.  
Not used. Fixed to Off.  
3
4
5
6
7
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DLE ENQ n  
[Name]  
Real-time request to printer.  
[Format]  
ASCII  
Hex  
Decimal  
1 £ n £ 2  
DLE  
10  
16  
ENQ  
05  
5
n
n
n
[Range]  
[Description]  
Recovers from an error after clearing the receive and  
print buffers.  
· This command is available only with a serial interface, and is ignored with  
a parallel interface.  
ESC SP n  
[Name]  
Set right-side character spacing.  
[Format]  
ASCII  
Hex  
Decimal  
0 £ n £ 255  
ESC  
1B  
27  
SP  
20  
32  
n
n
n
[Range]  
[Description]  
Sets the character spacing for the right side of the character  
to n/160 inches.  
ESC ! n  
[Name]  
Select print mode(s).  
[Format]  
ASCII  
Hex  
ESC  
1B  
27  
!
21  
33  
n
n
n
Decimal  
0 £ n £ 255  
Selects print mode(s) using n as follows.  
[Range]  
[Description]  
Bit  
0
Off/On  
Off  
On  
-
Off  
On  
Off  
On  
Off  
On  
-
Hex  
00  
01  
-
00  
08  
00  
10  
00  
20  
-
Decimal  
0
1
-
0
8
0
16  
0
Function  
Character font(9 ´ 9) selected.  
Character font(9 ´ 7) selected.  
Undefined.  
Emphasized mode not selected.  
Emphasized mode selected.  
Double-height mode not selected.  
Double-height mode selected.  
Double-width mode not selected.  
Double-width mode selected.  
Undefined.  
1,2  
3
4
5
32  
-
0
6
7
Off  
On  
00  
80  
Underline mode not selected.  
Underline mode selected.  
128  
· Determine the values of n by adding the value of all the characteristics  
you want to select.  
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ESC % n  
[Name]  
Select/Cancel user-defined character set.  
[Format]  
ASCII  
Hex  
Decimal  
0 £ n £ 255  
ESC  
1B  
27  
%
25  
37  
n
n
n
[Range]  
[Description]  
Selects or cancels the user-defined character set.  
When the Least Significant Bit(LSB) is 0, the user-defined  
character set is canceled and the internal character set  
is enabled.  
When the LSB is 1, the user-defined character set is selected.  
[Notes]  
· The user-defined character and the downloaded bit image cannot be defined  
simultaneously.  
[Default]  
n=0  
ESC & y c1 c2 [x1 d1... d(y  
´
x1)]... [xk d1... d(yx  
´
xk)]  
[Name]  
Define user-defined characters.  
[Format]  
ASCII  
Hex  
Decimal 27  
ESC  
1B  
&
26  
38  
n
n
n
y c1 c2 [x1 d1... d(y ´ x1)]...[xk d1... d(yx ´ xk)]  
y c1 c2 [x1 d1... d(y ´ x1)]...[xk d1... d(yx ´ xk)]  
y c1 c2 [x1 d1... d(y ´ x1)]...[xk d1... d(yx ´ xk)]  
[Range]  
y=2, 32 £ c1 £ c2 £ 126  
0 £ x £ 12 (9 ´ 9 font)  
0 £ x £ 9 (7 ´ 9 font)  
0 £ d1 ... d(y ´ x) £ 255  
[Description]  
Defines user-defined characters.  
¡
¡
Üy specifies the number of bytes in the vertical direction  
Üc1 specifies the beginning character code for the definition, and c2  
specifies the final code. For only one character, use c1 = c2.  
ÜThe allowable character code range is from decimal code 32 to 126.  
The maximum number of user-define character is 95.  
Üx specifies the number of dots in the horizontal direction.  
Üd is the dot data for the characters. The dot pattern is on the horizontal  
direction from the left side. Any remaining dots on right side are blank.  
ÜThe number of bytes required to download a character definition for one  
character is y” x “x”.  
ÜIn the definition data, a 1” represents a dot that is to be printed, and a  
0” represents a dot that is not to be printed.  
ÜIndependent downloaded character definitions are possible for each  
font. The font is selected characters are cleared in the following  
circumstance.  
¡
¡
¡
¡
¡
¡
1.  
2.  
3.  
When ESC @” is executed  
When deleted by ESC ?”  
When printer is reset or turned off  
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ESC * m nL nH d1…dk  
[Name]  
Select bit-image mode.  
ASCII  
Hex  
ESC  
1B  
27  
*
2A  
42  
m nL nH d1… dk  
m nL nH d1… dk  
m nL nH d1… dk  
[Format]  
[Range]  
Decimal  
m = 0, 1  
0 £ nL £ 255  
0 £ nH £ 1  
0 £ d £ 255  
[Description]  
Selects a bit-image mode using m for the number  
of dots specified by nL and nH.  
m
No. Vertical  
Dots  
Horizontal Direction  
Maximum  
number of  
dots  
Dot Density  
Adjacent dot  
0
1
8
8
Single Density  
Double Density  
Permitted  
Prohibited  
180  
360  
· The nL and nH indicate the number of dots of the bit image in the horizontal  
direction. The number of dots is calculated by nL + nH ´ 256.  
· If the bit-image data input exceeds the number of dots to be printed on a line,  
the excess data is ignored.  
· d indicates the bit-image data. Set a corresponding bit to 1 to print a dot or to 0  
not to print a dot.  
· The relationship between the image data and the dots to be printed is as follows.  
7
6
5
4
3
2
1
0
Top  
HEAD 1  
HEAD 2  
HEAD 3  
HEAD 4  
HEAD 5  
HEAD 6  
HEAD 7  
HEAD 8  
HEAD 9  
ESC - n  
[Name]  
Turn underline mode on/off.  
[Format]  
ASCII  
Hex  
Decimal  
n = 0, 1, 48, 49  
ESC  
1B  
27  
-
2D  
45  
n
n
n
[Range]  
[Description]  
Turns underline mode on or off, based on the following  
values of n:  
n = 0  
[Default]  
n
Function  
0,48  
1,49  
Turns off underline mode.  
Turns on underline mode  
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ESC 2  
[Name]  
Select default line spacing.  
[Format]  
ASCII  
Hex  
Decimal  
ESC  
1B  
27  
2
32  
50  
[Description]  
Sets the line spacing to 1/6-inch line spacing.  
ESC 3 n  
[Name]  
Set line spacing.  
[Format]  
ASCII  
Hex  
Decimal  
0 £ n £ 255  
ESC  
1B  
27  
3
33  
51  
n
n
n
[Range]  
[Description]  
inches.  
Sets the line spacing to [n ´ vertical or horizontal motion unit]  
[Default]  
n=24  
ESC <  
[Name]  
Return home.  
[Format]  
ASCII  
Hex  
Decimal  
ESC  
1B  
27  
<
3C  
60  
[Description]  
Moves the print head to the standby position.  
ESC = n  
[Name]  
Select peripheral device.  
[Format]  
ASCII  
Hex  
Decimal  
0 £ n £ 253  
ESC  
1B  
27  
=
3D  
61  
n
n
n
[Range]  
[Description]  
Selects device to which host computer sends data,  
using n as follows:  
n=1  
[Default]  
Off/On  
Off  
Bit  
Hex  
00  
01  
-
Decimal  
Function  
0
0
1
-
Printer Disabled.  
Printer Enabled.  
Undefined  
On  
-
1 ~ 7  
ESC ? n  
[Name]  
Cancel user-defined characters.  
[Format]  
ASCII  
Hex  
ESC  
1B  
27  
?
3F  
63  
n
n
n
Decimal  
32 £ n £ 126  
Cancels user-defined characters.  
[Range]  
[Description]  
29  
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ESC @  
[Name]  
[Format]  
Initialize printer.  
ASCII  
ESC  
1B  
27  
@
40  
64  
Hex  
Decimal  
[Description]  
Clears the data in the print buffer and resets the  
printer mode to the mode that was in effect when  
the power was turned on.  
ESC D n1... nk NUL  
[Name]  
Set horizontal tab positions.  
[Format]  
ASCII  
Hex  
ESC  
1B  
27  
D
44  
68  
n1... nk  
n1... nk  
n1... nk  
NUL  
00  
0
Decimal  
1 £ n £ 255  
0 £ k £ 32  
[Range]  
[Description]  
Sets horizontal tab positions.  
· n specifies the column number for setting a horizontal tab position from  
the beginning of the line.  
· k indicates the total number of horizontal tab positions to be set.  
30  
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ESC E n  
[Name]  
Turn emphasized mode on/off.  
[Format]  
ASCII  
Hex  
Decimal  
ESC  
1B  
27  
E
45  
69  
n
n
n
[Range]  
[Description]  
0 £ n £ 255 (Only the lowest bit of n is enabled)  
Turns emphasized mode on or off.  
· When the LSB of n is 0, emphasized mode is turned off.  
· When the LSB of n is 1, emphasized mode is turned on.  
ESC G n  
[Name]  
Turn on/off double-strike mode.  
[Format]  
ASCII  
Hex  
ESC  
1B  
27  
G
47  
71  
n
n
n
Decimal  
0 £ n £ 255  
Turns double-strike mode on or off.  
[Range]  
[Description]  
· When the LSB of n is 0, double-strike mode is turned off.  
· When the LSB of n is 1, double-strike mode is turned on.  
ESC J n  
[Name]  
Print and feed paper.  
[Format]  
ASCII  
Hex  
ESC  
1B  
27  
J
4A  
74  
n
n
n
Decimal  
0 £ n £ 255  
Prints the data in the print buffer and feeds  
[Range]  
[Description]  
the paper n ´ vertical or horizontal motion unit.  
ESC K n  
[Name]  
Print and reverse feed.  
[Format]  
ASCII  
Hex  
Decimal  
0 £ n £ 255  
ESC  
1B  
27  
K
4B  
75  
n
n
n
[Range]  
[Description]  
Prints the data in the print buffer and feeds the paper  
n ´ vertical or horizontal motion unit in the reverse direction.  
31  
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ESC R n  
[Name]  
Select an international character set.  
[Format]  
ASCII  
Hex  
Decimal  
0 £ n £ 10  
ESC  
1B  
27  
R
52  
82  
n
n
n
[Range]  
[Description]  
table.  
Selects an international character set n from the following  
[Default]  
n=0  
n
0
1
2
3
4
5
Character set  
U.S.A.  
France  
Germany  
U.K.  
n
6
7
9
10  
Character set  
Italy  
Spain  
Norway  
Denmark 2  
Denmark 1  
Sweden  
ESC U n  
[Name]  
Turn on/off unidirectional printing mode.  
[Format]  
ASCII  
Hex  
ESC  
1B  
27  
U
55  
85  
n
n
n
Decimal  
0 £ n £ 255  
Turns unidirectional printing mode on or off.  
[Range]  
[Description]  
· When the LSB of n is 0, turns off unidirectional printing mode.  
· When the LSB of n is 1, turns on unidirectional printing mode.  
ESC a n  
[Name]  
Select justification.  
[Format]  
ASCII  
Hex  
Decimal  
ESC  
1B  
27  
a
61  
97  
n
n
n
[Range]  
[Description]  
0 £ n £ 2, 48 £ n £ 50  
Aligns all the data in one line to the specified position.  
n selects the type of justification as follows.  
n
Justification  
Left justification  
Centering  
0,48  
1,49  
2,50  
Right justification  
32  
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ESC c 3 n  
[Name]  
Select paper sensor(s) to output paper end signals.  
[Format]  
ASCII  
Hex  
Decimal  
0 £ n £ 255  
ESC  
1B  
27  
c
63  
99  
3
33  
51  
n
n
n
[Range]  
[Description]  
Selects the paper sensor(s) to output paper end signals.  
This command is available only with a parallel interface  
and is ignored with serial interface.  
· Each bit of n is used as follows.  
· This command is available only with a parallel interface and is ignored  
with a serial interface.  
Bit  
0
Off/On  
Off  
On  
Hex  
00  
01  
-
Decimal  
Function  
0
1
-
Paper roll end sensor disabled.  
Paper roll end sensor enabled.  
Undefined.  
1 - 7  
-
ESC c 5 n  
[Name]  
Enable/Disable panel button.  
[Format]  
ASCII  
Hex  
ESC  
1B  
27  
c
63  
99  
5
35  
53  
n
n
n
Decimal  
0 £ n £ 255  
Enables or disables the panel button.  
[Range]  
[Description]  
· When the LSB is 0, the panel buttons are enabled.  
· When the LSB is 1, the panel buttons are disabled.  
ESC d n  
[Name]  
Print and feed n lines.  
[Format]  
ASCII  
Hex  
Decimal  
0 £ n £ 255  
ESC  
1B  
27  
d
64  
100  
n
n
n
[Range]  
[Description]  
Prints the data in the print buffer and feeds n lines.  
ESC e n  
[Name]  
Print and reverse feed n lines.  
[Format]  
ASCII  
Hex  
Decimal  
0 £ n £ 2  
ESC  
1B  
27  
e
65  
101  
n
n
n
[Range]  
[Description]  
Prints the data in the print buffer and feeds n lines  
in the reverse direction.  
33  
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ESC m  
[Name]  
Executes partial cut.  
[Format]  
ASCII  
Hex  
Decimal  
ESC  
1B  
27  
m
6D  
109  
[Description]  
Executes partial cut with one point uncut.  
ESC p m t1 t2  
[Name]  
Generate pulse.  
[Format]  
ASCII  
Hex  
Decimal  
ESC  
1B  
27  
p
70  
112  
m t1 t2  
m t1 t2  
m t1 t2  
[Range]  
m = 0, 1, 48, 49  
0 £ t1 £ 255  
0 £ t2 £ 255  
Outputs the pulse specified by t1 and t2 to connector pin  
m as follows:  
[Description]  
m
Connector pin  
0, 48  
1, 49  
Drawer kick-out connector pin 2  
Drawer kick-out connector pin 5  
ESC r n  
[Name]  
Select print color.  
[Format]  
ASCII  
Hex  
Decimal  
n = 0,1,48,49  
ESC  
1B  
27  
r
n
n
n
72  
114  
[Range]  
[Description]  
Selects a print color, using n as follows.  
n
0,48  
1,49  
Print color  
Black  
Red  
34  
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ESC t n  
[Name]  
Select character code table.  
[Format]  
ASCII  
Hex  
Decimal  
ESC  
1B  
27  
t
n
n
n
74  
116  
[Range]  
[Description]  
0 £ n £ 5, 254 £ n £ 255  
Selects a page n from the character code table.  
n
0
2
3
4
Page  
0 (PC437 {USA, standard Europe})  
2 (PC850 {Multilingual})  
3 (PC860 {Portuguese})  
4 (PC863 {Canadian-French})  
5 (PC865 {Nordic})  
5
19  
19(PC858{Euro})  
ESC u n  
[Name]  
Peripheral status.  
[Format]  
ASCII  
Hex  
Decimal  
n = 0  
ESC  
1B  
27  
u
75  
117  
n
n
n
[Range]  
[Description]  
Transmits the peripheral status (drawer).  
After receiving this command, the printer transmits only  
1 byte without confirming the condition of the DSR signal.  
Transmit data : 01H = drawer open.  
00H = drawer closed.  
· This command is available only with a serial interface, and is ignored  
with a parallel interface.  
ESC { n  
[Name]  
Turns on/off upside-down printing mode.  
[Format]  
ASCII  
Hex  
ESC  
1B  
27  
{
n
n
n
7B  
123  
Decimal  
0 £ n £ 255  
Turns upside-down printing mode on or off.  
[Range]  
[Description]  
· When the LSB of n is 0, upside-down printing mode is turned off.  
· When the LSB of n is 1, upside-down printing mode is turned on.  
35  
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ESC v  
[Name]  
Transmit paper sensor status.  
[Format]  
ASCII  
Hex  
Decimal  
ESC  
1B  
27  
v
76  
118  
[Description]  
Transmits the current paper sensor status.  
· When DTR/DSR control is selected, the printer transmits only 1 byte after  
confirming that the host is ready to receive data (DSR signal is SPACE).  
· If the host computer is not ready to receive data (DSR signal is MARK),  
the printer waits until the host is ready. When XON/XOFF control is selected ,  
the printer transmits only 1 byte without checking the DSR signal.  
· This command is executed when the data is processed in the receive buffer.  
Therefore, there may be a time lag between receiving the command and  
transmitting the status, depending on the receive buffer status.  
· The status to be transmitted is shown in the table below.  
· This command is available only with a serial interface, and is ignored with  
a parallel interface.  
Bit  
0,1  
Off/On  
Off  
On  
Off  
On  
Off  
-
Hex  
00  
03  
00  
0C  
00  
-
Decimal  
Function  
0
3
0
12  
0
-
Paper roll end sensor. Paper is present.  
Paper roll end sensor. Paper is not present.  
Paper roll end sensor. Paper is present.  
Paper roll end sensor. Paper is not present.  
Not used.  
2,3  
4
5,6  
7
Undefined.  
Not used.  
Off  
00  
0
GS I n  
[Name]  
Transmit printer ID.  
[Format]  
ASCII  
Hex  
Decimal  
GS  
1D  
29  
I
49  
73  
n
n
n
[Range]  
[Description]  
1 £ n £ 3, 49 £ n £ 51  
Transmits the printer ID specified by n as follows:  
n
Printer ID  
Specification  
ID (hexadecimal)  
1, 49  
Printer model ID  
SRP-250/SRP-250P  
0DH  
2, 50  
3, 51  
Type ID  
ROM version ID  
See table below.  
ROM version  
36  
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n=2, Type ID  
Bit  
0
1
2,3  
4
5,6  
7
Off/On  
Hex  
00  
00  
-
00  
-
Decimal  
Function  
Off  
Off  
-
Off  
-
0
0
-
0
-
Two-byte character code not supported.  
Auto cutter not equipped.  
Undefined.  
Not used. Fixed to Off.  
Undefined.  
Off  
00  
0
Not used. Fixed to Off.  
[Notes]  
· When DTR/DSR control is selected, the printer transmits only 1 byte after  
confirming that the host is ready to receive data(DSR signal is SPACE).  
If the host computer is not ready to receive data (DSR signal is MARK),  
the printer waits until the host is ready. When XON/XOFF control is selected,  
the printer transmits only 1 byte without confirming the condition of the DSR  
signal.  
· The printer ID is transmitted when the data in the receiving buffer is developed.  
Therefore, there may be a time lag between receiving this command and  
transmitting the status, depending on the receive buffer status.  
GS V m n  
[Name]  
Feed paper for cutting position.  
[Format]  
ASCII  
Hex  
Decimal  
GS  
1D  
29  
V
56  
86  
m
m
m
n
n
n
[Range]  
[Description]  
65 £ m £ 66, 0 £ n £ 255  
Feeds paper for cutting position as follows:  
m
Print mode  
65  
Feeds paper (cutting position + [n´ (vertical motion unit)]), and cuts the  
paper Partially.  
66  
Feeds paper (cutting position + [n´ (vertical motion unit)]), and cuts the  
paper partially.  
GS r n  
[Name]  
Transmit status.  
[Format]  
ASCII  
Hex  
Decimal  
GS  
1D  
29  
r
n
n
n
72  
114  
[Range]  
[Description]  
1 £ n £ 2, 49 £ n £ 50  
Transmits the status specified by n as follows.  
n
Function  
1, 49  
2, 50  
Transmits paper sensor status.  
Transmits drawer kick-out connector status.  
37  
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Paper sensor status(n=1, 49):  
Bit  
0
Off/On  
Off  
On  
Off  
On  
Off  
On  
Off  
On  
Off  
-
Hex  
00  
01  
00  
02  
00  
04  
00  
08  
00  
-
Decimal  
Status  
0
1
0
2
0
4
0
8
0
-
Paper roll end sensor: paper adequate.  
Paper roll end sensor: paper end.  
Paper roll end sensor: paper adequate.  
Paper roll end sensor: paper end.  
Paper roll end sensor: paper present.  
Paper roll end sensor: no paper present.  
Paper roll end sensor: paper present.  
Paper roll end sensor: no paper present.  
Not used. Fixed to Off.  
1
2
3
4
5,6  
7
Undefined.  
Not used. Fixed to Off.  
Off  
00  
0
Bits 0 and 1 : The "paper roll end" detector is an option; on units that do not  
have this detector, the "paper roll end" detector always indicates  
that paper is present(bits 0 and i=1), whether or not it actually is.  
Drawer kick-out connector status(n=2);  
Bit  
0
Off/On  
Off  
On  
-
Off  
-
Hex  
00  
01  
-
00  
-
Decimal  
Status  
0
1
-
0
-
Drawer kick-out connector pin 3 is LOW.  
Drawer kick-out connector pin 3 is HIGH.  
Undefined.  
Not used. Fixed to Off.  
Undefined  
1-3  
4
5-6  
7
Off  
00  
0
Not used. Fixed to Off.  
38  
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Appendix A  
Connectors  
SRP-250 Connector  
( Serial Interface )  
SRP-250P Connector  
( Parallel Interface )  
39  
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Interface Connector  
Serial Interface  
Pin No. Signal name Direction Function  
1
FG  
-
Frame Ground  
Transmit Data  
2
TxD  
RxD  
RTS  
DSR  
SG  
Output  
Input  
Output  
Input  
-
3
Receive Data  
4
Request To Send  
Data Set Ready  
Signal Ground  
6
7
20  
DTR  
Output  
Data Terminal Ready  
Serial Interface Connection(Example)  
Host(DTE ex 8251)  
Printer  
RXD  
DTR  
TXD  
DSR  
S.G  
TXD  
DSR  
RXD  
DTR  
S.G  
Parallel Interface Connector Pin Assignment  
40  
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Pin No.  
Signal Name  
STB  
Pin No.  
19  
Signal Name  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
GND  
"
"
"
"
"
"
"
DATA 1  
DATA 2  
DATA 3  
DATA 4  
DATA 5  
DATA 6  
DATA 7  
DATA 8  
ACK  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
"
"
"
BUSY  
PE  
SLCT  
"
INIT  
FAULT  
GND  
NC  
NC  
SLCT  
AUTO FEED  
NC  
SIGNAL GND  
FRAME GND  
NC  
36  
41  
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Drawer Connector  
Pin No. Signal name  
Direction  
1
2
3
4
5
6
Frame ground  
-
Drawer kick-out drive signal 1  
Drawer open/close signal  
+24V  
Output  
Input  
-
Drawer kick-out drive signal 2  
Signal ground  
Output  
-
42  
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Appendix B  
Specification  
Printer  
Printing method  
Number of head pin  
Printing direction  
Lines per second  
Characters per line  
Ribbon type  
Serial impact dot matrix  
9 wires  
Bi-directional  
Approx. 3.5 LPS  
40 (9*7), 32(9*9)  
Cartridge type  
Red & Black  
Approx. Red (0.8 Million characters),  
Black(1.5 Million characters)  
Roll paper  
Ribbon  
Paper  
Color  
Ribbon life  
Paper type  
Paper width  
Roll diameter  
Thickness  
Overall dimensions  
Weight  
W76mm ¡ ¾0.5mm (2.99” ¡ ¾0.22)  
Max. f 80mm (3.14)  
0.06mm ~ 0.085mm (0.002” ~ 0.003)  
115mm * 70mm * 58mm ( 4.53” * 2.77” * 2.29” )  
1023gram ( 2.26lbs)  
Adapter  
Types  
AD-1000A : U.S.A. ( 120 V / 60 Hz )  
AD-1000B : Europe ( 230V/50Hz )  
AD-1000C : UK ( 230V/50Hz)  
AD-1000D : AUSTRALIA (230V/50Hz )  
Gillotine type  
Auto Cutter  
ETC  
Cutter type  
Cutting width  
Cutting thickness  
Data buffer  
Max. 85 mm  
Max. 0.1mm  
6k bytes  
Overall dimension  
SRP-250A/AP, SRP-250C/CP:  
177(W)*277(D)*141(H)mm(7.00*10.9*5.57)  
SRP-250B/BP:  
177(W)*277(D)*186(H)mm(7.00*10.9*7.32)  
SRP-250D/DP:  
177(W)*284(D)*183(H)mm(7.00*11.2*7.19)  
Weight(printer only) : Approx. 2.4kg (5.3lbs)  
Weight(with box & accessories ) :  
Approx. 4.5 kg (9.8lbs)  
Weight  
Rating  
DC 27 V, 1.2 A  
Power consumption  
EMI  
Standby : 16 W, Operation : 25 W  
FCC class A, CE  
Safety standards  
Reliability  
UL/CSA, TUV,CE  
MCBF : 5,000,000 lines (Except print head life )  
Print head life : 150,000,000 Dots  
0¡ É~ 40¡ É( 32¢ µ~ 104¢ µ)  
30% ~ 80%  
-10¡ É~ 50¡ É( 14¢ µ~ 122¢ µ)  
10% ~ 95%  
Operation temperature  
Operation humidity  
Storage temperature  
Storage humidity  
43  
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Appendix C  
Removing Jammed Paper (A)  
When the paper is jammed near the head carriage.  
1) Open the front-cover and rear-cover.  
2) Loosen the screw securing the head cover as shown the illustration.  
CAUTION : The printer head becomes very hot during printing.  
Allow it to be cool before you reach into the printer.  
44  
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3) Remove the roll paper from the printer.  
4) Remove the ribbon cassette.  
5) Move the head carriage to the reverse direction of paper jammed by 1st gear  
reduction as shown illustration.  
6) Remove the jammed paper by rotating the paper-feed knob.  
7) Replace the head cover and secure it with screw.  
8) Replace the ribbon cassette and roll paper, then close the printer cover.  
45  
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Removing Jammed Paper (B)  
Paper is jammed when you insert the paper.  
1) Open the front-cover and rear-cover.  
2) Loosen the screw securing the guide-paper as shown the illustration.  
CAUTION : The printer head becomes very hot during printing.  
Allow it to be cool before you reach into the printer.  
3) Remove the roll paper from the printer.  
4) Remove the ribbon cassette.  
46  
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5) Remove the jammed paper by rotating the paper-feed knob.  
6) Replace the head cover and secure it with screw.  
7) Replace the ribbon cassette and roll paper, then close the printer cover.  
47  
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CONTROL CODES  
STAR mode  
Control code  
<ESC> "C" n  
<ESC> "R" n  
Hexadecimal code  
1B 43 n  
1B 52 n  
Function  
Set page length at n lines  
Select international character set.  
Default is according to the dip switch  
settings 3, 4 and 5.  
<ESC> "M"  
1B 4D  
Select 7 ´ 7(Half dots) character  
size(Default setting)  
<ESC> "P"  
<SO>  
<SI>  
<DC2>  
<DC4>  
1B 50  
0E  
0F  
12  
14  
Select 9´ 7(Half dots) character size  
Select expanded character mode  
Select inverted print mode  
Cancel inverted print mode  
Cancel expanded character  
mode(Default setting)  
<ESC> "W" "1"  
<ESC> "W" <1>  
<ESC> "W" "0"  
<ESC> "W" <0>  
<ESC> "4"  
<ESC> "5"  
<ESC> "E"  
<ESC> "F"  
1B 57 31  
1B 57 01  
1B 57 30  
1B 57 00  
1B 34  
1B 35  
1B 45  
1B 46  
Select expanded character mode  
Cancel expanded character mode  
(Default setting)  
Red color print selection  
Red color print deselection  
Emphasized print mode selection  
Emphasized print mode deselection  
(Default setting)  
<ESC> "a" n  
1B 61 n  
Feed paper n lines  
<ESC><BEL>n1 n2  
1B 07 n1 n2  
Adjust drive pulse width for peripheral  
unit(Default setting)  
<BEL>  
<FS>  
07  
1C  
1A  
19  
Deferred drive command "A" for  
peripheral unit 1  
Immediate drive command "B" for  
peripheral unit 1  
Immediate drive command for  
peripheral unit 2  
Immediate drive command for  
peripheral unit 2  
<SUB>  
<EM>  
<CAN>  
18  
1B 40  
1B 65 30  
1B 65 00  
13  
Cancel print data in buffer  
Initialize printer  
FEED switch valid  
(Default setting)  
Set deselect mode  
<ESC> "@"  
<ESC> "e" "0"  
<ESC> "e" <0>  
<DC3>  
<DC4>  
14  
Set select mode  
<ESC> U n  
<ESC> - n  
Control code  
<ESC> "e" "1"  
<ESC> "e" <1>  
1B 55 n  
1B 2D n  
Hexadecimal code  
1B 65 31  
1B 65 01  
Set or Cancel uni-direction mode  
Set or Cancel underline mode  
Function  
FEED switch invalid  
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<ESC> "z" "1"  
<ESC> "z" <1>  
<FF>  
<ESC> d "0"  
<ESC> d "1"  
1B 7A 31  
1B 7A 01  
0C  
1B 64 30  
1B 64 31  
Set 1/6 inch line feed  
Page feed (form feed)  
Full cut  
Partial cut  
CITIZEN mode  
Function code  
<FF> "n"  
<SO>  
<SI>  
Hexadecimal code  
0C + n  
0E  
0F  
11  
Function  
"n" -lines paper feed command  
Enlarged character command  
Normal character command  
Initial set command  
<DC1>  
<DC2>  
<DC3>  
<CAN>  
12  
13  
18  
Inverted character command  
Red color print command  
Clear command  
<ESC> "P" "0"  
<ESC> "P" "1"  
<ESC> "-" "n"  
<ESC> "1"  
<ESC> "2"  
<ESC> "C" "n"  
<ESC> "f" "1"  
<SUB>  
1B, 50, 00  
1B, 50, 01  
1B, 2D, n  
1B, 31  
1B, 32  
1B, 43, n  
1B, 66, 01  
1A  
Paper full cut command  
Paper partial cut command  
Underline command  
1/9 inch paper feed preset command  
2/9 inch paper feed preset command  
Page length set command  
Form feed command  
Second drawer drive command  
First drawer quick drive command  
Drive pulse setting command for the  
first drawer  
<FS>  
<ESC><BEL> n1 n2  
1C  
1B, 07, n1, n2  
<BEL>  
<ESC> "U" "1"  
<ESC> "U" <1>  
07  
1B 55 31  
1B 55 01  
First drawer drive command  
Select uni-directional print mode on/off  
<ESC> "@"  
1B 40  
Initialize printer  
<ESC> "d" "0"  
<ESC> "d" <0>  
<ESC> "d" "1"  
<ESC> "d" <1>  
<ESC> "W" "1"  
<ESC> "W" <1>  
<ESC> "y" n  
1B 64 30  
1B 64 01  
1B 64 31  
1B 64 01  
1B 57 31  
1B 57 01  
1B 79 n  
Trigger auto-cutter drive (full cut)  
Trigger auto-cutter drive (partial cut)  
Select expanded character mode on/off  
Set n/144 inch line feed  
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