sewoo SLK-T21EB SERIES Receipt Printer User Manual

sewoo SLK-T21EB SERIES Receipt Printer

Product Information

Specifications

• Model: SLK-T21EB Series
• Manufacturer: Aroot Co., Ltd.
• Address: 28-6, Gajangsaneopdong-ro, Osan-si, Gyeonggi-do, 18103, Republic of Korea
• Phone: +82-31-8077-5000
• Website: www.miniprinter.com.

Product Usage Instructions

Parts Identifications

• CONTROL PANEL: Features LED indicators and switches to operate the printer.
• COVER OPEN LEVER: Used to indicate printer status and operate the printer.
• POWER SWITCH: Turn on/off power to the printer.
• PRINTER COVER: Open this cover to load or replace paper.

Setting Up the Printer

Unpacking
Check the printer box for the following items: Printer, CD, Roll Paper, Adaptor (optional), and Interface Cable (optional). Contact your dealer if any items are damaged or missing.

Connecting the Cables
Connect the required cables to the printer:

• INTERFACE CONNECTOR (SERIAL)
• CASH DRAWER CONNECTOR
• POWER CONNECTOR
• INTERFACE CONNECTOR (USB)
• INTERFACE CONNECTOR (ETHERNET)

Before connecting cables, ensure both the printer and computer are turned off.

Interface Connector Pin Details

9 Pin Serial: 123453678

USB Interface:

• PIN 1: +5V
• PIN 2: DATA-
• PIN 3: DATA+
• PIN 4: GND

FAQ

• Q: What should I do if my printer does not turn on?
  A: Check the power switch and ensure it is properly connected to a power source. If the issue persists, contact customer support.

• Q: How can I clean the printer?
  A: Refer to the “Printer Cleaning” section in the user manual for detailed instructions on cleaning the printer.

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions.

1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.

Vic Barczyk

• 20280 S. Vermont Ave. STE 200, Torrance, CA 90502 | USA
• +310-561-8030

Disposal of Old Electrical &Electronic Equipment(Applicable in the European Union and other European countries with separate collection systems)
This symbol on the product or its packaging indicates that this product shall not be treated as household waste. Instead, it shall be handed over to the applicable collection point for the recycling of electrical and electronic equipment. For more detailed information about recycling this product, please contact your local city office, your household waste disposal service, or the shop where you purchased the product.

Parts Identifications

Setting Up the Printer

Unpacking

• Your printer box should include these items.
• If any items are damaged or missing, please contact your dealer for assistance.

Connecting the Cables

• You can connect the cables required for printing to the printer.
• They all connect to the connector panel on the back of the printer, which is shown below:

Before connecting any of the cables, make sure that both the printer and the computer are turned off.

Interface Connector

9Pin Serial Interface

USB Interface

USB Interface

This equipment is indoor use and all the communication wirings are limited to inside of the building.

Cash Drawer Connector

• The printer can operate two cash drawers with a 6-pin RJ-11 modular connector.
• The driver is capable of supplying a maximum current of 1.0A/24VDC for 510ms or less when not printing.

CAUTION
Please make sure you hear the closing sound of the upper cover.

Loading the Roll Paper

NOTE
Be sure to use paper rolls that meet the specifications. Do not use paper rolls that have the paper glued to the core because the printer cannot detect the paper end correctly.

Turn off the power switch.

1. Make sure that the printer is not receiving data; Otherwise, data may be lost.
2. Open the paper roll cover by pushing down the cover open button.
3. Remove the used paper roll core if there is one inside.
4. Insert new paper roll as shown.
5. Be sure to note the correct direction that the paper comes off the roll.
6. Pull out a small amount of paper, as shown. Then, close the cover.
7. Tear off the paper as shown.

CAUTION

• When the paper is jammed with the cutter, the top cover might be stuck. In this case, repeat power on and off several times.
• If the top cover is still stuck, please follow the steps to release the papers from jamming.

1. Make sure the printer is turned off.
2. Remove the screw from the DIP switch cover. Then, take off the DIP switch cover as shown in the illustration below.
3. Turn the screw with drivers to a direction until the paper is released from the cutter.

Adjustment of paper width

1. Please adjust the Paper Guide to fit the paper width in the direction of the arrow.
2. Tight the screw after adjusting the Paper Guide.
3. Pull the edge of the paper once the paper roll is installed correctly and close the Paper Cover.

Control panel and other functions

Control panel
You can control the basic paper-feeding operations of the printer with the button on the control panel. The indicator lights help you to monitor the printer’s status.

Control Panel

Button

• The button can be disabled by the ESC c 5 command.
• Press the FEED button once to advance the paper one line. You can also hold down the FEED button to feed the paper continuously.

Error indicators

RED

OFF

| RED

OFF

| GREEN

OFF

Power off

Power on

| OFF| OFF| ON| Normal power is not supplied to the printer

Normal power is supplied to the printer

On line| OFF| OFF| ON| Normal error-free mode
Cover open| OFF| ON| ON| Close cover
Paper end| OFF| ON| ON| Insert the new paper roll
Paper| | | |
near end| ON| OFF| ON| Paper is low

Self Test

The self-test result indicated whether the printer was operating properly. Also with this, the user can check the following options or the status of the printer.

Control circuit

Printer mechanism
Printing quality
ROM version
Interface setting

This test is independent of any other equipment or software.

Running the self-test

1. Make sure the printer is turned off and the printer cover is closed properly before performing the self-test.

2. Turn the printer on by holding the FEED button, then the self-test will start. The self-test prints the printer setting value and then prints the following, and pauses. (Error LED On)
   SELECT MODE BY BUTTON

   1. ASCII PRINT
   2. ECO MODE
   3. PRINTER SETTING
   4. HEXADUMP MODE

3. Press the FEED button consecutively (1~4)
   1. (ApSrCeIsIsPtRhIeNFTEED button once)| Printing test page constructed with ACII code.
   ---|---
   2. (EpCrOesMs OthDeEFEED button twice)

3. PRINTER SETTING

| Set the ECO mode to save paper and power.

(Default font type, Reduce paper margin, Density) Set the printer option.

4. (press the FEED button triple time)

HEXADUMP MODE

| (Serial baudrate, Cutting mode, Error beep, Melody)
(press the FEED button quad time)| Printing the HEX value received from the interface

• Wait for 5~6 seconds if you want to exit. The printer performs a cutting when exiting this mode

4. The printer is ready to receive data after finishing the settings.

ASCII Print

• ASCII PRINT is printing a test page constructed ASCII code. You can able to check the printer works properly with this
• The ASCII PRINT test automatically ends and cuts the paper after printing the following:

Completed
The printer is ready to receive data as soon as it completes the ASCII PRINT.

ECO Mode

• After entering the ECO MODE, the list that can select the ECO option will be printed. Similar to Self Test, you can press the FEED button to select an ECO option.
• Once the input performs properly, the printer shows a result and stores it.

ECO MODE

1. FONT SETTING
2. LINE SPACE SETTING
3. LINE FEED SETTING
4. BARCODE[1D] HEIGHT
5. DENSITY SETTING

Font
THE FONT SETTING menu can be changed to the Font mapping(FONT A / FONT B). If you do not want the other side font, you can disable that.

• FONT A: 12×24
• FONT B: 9×17

FONT SETTING

1. FONT A -> A / FONT B -> B
2. FONT A -> B / FONT B -> B
3. FONT A -> A / FONT B -> A
4. FONT A -> B / FONT B -> A

Paper Reduce
A reduced menu (Line space, Line feed, barcode[1D] height) was developed for paper saving.

• Line space
  “Line space” means the amount of feed when you intentionally generate newlines.

• Line feed
  “Line feed” means the amount of feed when there is an automatic line break.

• Barcode Height
  “Barcode Height” means the height of the barcode when creating a one- dimensional barcode.

LINE SPACE SETTING

1. NORMAL
2. REDUCE 50%
3. REDUCE 75%
4. REDUCE 90%

LINE FEED SETTING

1. NORMAL
2. REDUCE 50%
3. REDUCE 75%
4. REDUCE 90%

1D BARCODE HEIGHT SETTING

1. NORMAL
2. REDUCE 50%
3. REDUCE 75%
4. REDUCE 90%

Density
Adjust the print density to save the power consumed by the printer.

SELECT DENSITY

1. NORMAL
2. LOW
3. DARK

Printer Setting

Change the printer settings. The options below can also be changed via the Memory Saver.

PRINTER SETTING

1. SELECT BAUDRATE
2. SELECT CUTTING MODE
3. SELECT THE ERROR BEEP OPTION
4. SELECT MELODY OPTION

Baudrate

• After entering the BAUDRATE MODE, the list that can select the BPS will be printed.
• Similar to Self Test, you can press the FEED button to select a BAUDRATE. Once the input performs properly, the printer shows a result and stores it. The printer is ready to receive data as soon as it completes the SELECT BAUDRATEMODE.

SELECT BAUDRATE

1. 4800bps
2. 9600bps
3. 19200bps
4. 38400bps
5. 57600bps
6. 115200bps

Cutter
Set cutter mode.

SELECT CUTTING MODE

1. PARTIAL CUT
2. FULL CUT

Error Beep

• If the cover is open or there is no paper, the error beep function is activated.
• This option allows you to enable/disable the error beep.

SELECT THE ERROR BEEP OPTION

1. BEEP ON
2. BEEP OFF

Melody
To DK Port (Cash), Melody box or external buzzer can be connected. You can activate it from the Melody Setting menu, and the melody will operate after the cutting operation.

1. Melody Box: Melody is fixed and the volume can be adjusted.
2. External Buzzer: 3 types of melody are output according to the Melody Type setting and volume control is not included

SELECT MELODY OPTION

1. MELODY SETTING
2. SELECT MELODY TYPE

MELODY SETTING

1. MELODY ON AFTER CUTTING
2. MELODY OFF

SELECT MELODY TYPE

1. MELODY-Ⅰ
2. MELODY-Ⅱ
3. MELODY-Ⅲ

Hexadecimal Dump

• 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 go into the hex dump function, the printer prints all commands and other data in hexadecimal format along with a guide section to help you find specific commands.

To use the hex dump feature, follow these steps

1. Please turn the printer off.
2. Please turn the printer on while pressing down “Feed” button.
3. Press the FEED button three times when the Self Test is printed.
4. Now printer had entered Hexa dump mode.
5. Run any software program that sends data to the printer. The printer prints ”Hexadecimal printing mode…” and then 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.

Hexadecimal Dump

  * 1B 21 00 1B 26 02 40 40 .!..& . @ @

  * 1B 25 01 1B 63 34 00 1B .%..c4.

  * 41 42 43 44 45 46 47 48 ABCDEFGH

  * A period (.) is printed for each code that has no ASCII equivalent.

6. Turn off the printer.
7. Turn on the printer.

Printer Cleaning

• If the interior of the printer is dusty, printing quality can be lowered.
• In this case, follow the instructions below to clean the printer.

NOTE

1. Make sure to turn the printer power off before cleaning

2. Regarding print head cleaning, as the print head is very hot during printing, turn off the printer power and wait approximately 10 minutes before starting.

3. When cleaning the print head, take care not to touch the heated part of the print head. The print head is subject to be damaged by static electricity.

4. Take care not to allow the print head to become scratched and /or damaged in any way.

5. Use an applicator swab moistened with an alcohol solution to clean the print head and remove any dust.

6. Once the cleaning is completed, insert a paper roll into the printer a few minutes later and close the printer cover.

Preventing Overheating
To prevent the motor from overheating, continuous operation of the printer should be 1.5 m or less in print length. Set the pause time for 30 seconds or more than it.

Specifications

EAN-8, EAN-13, Code 39, Code 93, Code 128, ITF, UPC-A, UPC-E, Codabar

Barcode| 1D
2D| PDF 417, QR code, DATA MATRIX

ESC/POS Command compatible

Emulation
Driver| Windows Driver(10, 2012, 8, 7, 2008, VISTA, 2003, XP, 32bit & 64bit), Window CE & Mobile Driver & SDK(CE 4.2~, Mobile 5.0~), Linux Driver, Mac Driver, OPOS Driver, JavaPOS Driver, iOS SDK, Android(2.1~) SDK, Blackberry SDK, Symbian

Paper

| Paper type
Thermal receipt paper/Linerless (Optional)|
Width
50 ~ 82.5 ± 0.5mm
Thickness
0.06 ~ 0.09mm
Roll Max Diameter
Max. 80mm
Roll Core
12.5mm ± 0.5mm
Sensor| Standard
Paper End, Paper Low, Cover Open
Option
Black Mark
Interface| Standard
USB(B type) + Ethernet + Serial(RS-232C)
Cash drawer
2 circuits(24V, 1A Max.)
Reliability| MCBF
60 million lines
TPH Life
160Km
Cutter| Type
Guillotine
---|---
Life
T21EB, T21EBⅡ- 2,000,000 cuts
Paper Thickness
0.06 ~ 0.09mm
Power| AC
100 ~ 240Vac 50/60 Hz
DC
24Vdc / 1.75A
Size (W x D x H)
152 × 204 × 150 mm
Weight
1.7kg
Temperature| Operation
0 ~ 45℃
Storage
-20 ~ 60℃
Humidity| Operation
35 ~ 80%
Storage
10 ~ 90%

PATENT

Command List

No.

| Command| Function|

REMARKS

---|---|---|---
12| HLFT| HProinritzoandtallintaebfeed|
3| CR| carriage return|
4| FF| Print and return to standard mode(in page mode)|
5| CAN| Cancel print data in page mode|
6| DLE EOT| Real-time status transmission|
7| ENQ| R al-time request to the printer|
8| DLE DC4| Generate pulse in real-time|
9| FF| Print data in page mode|
10| ESC SP| Set right-side character spacing|
| !| lect print mode(s)|
12| ESC $| Set absolute print position|
| ES %| S ect/cancel user-defined character set|
14| ESC &| Define user-defined characters|
| *| Set bit-image mode|
16| ESC –| Turn underline mode on/off|
| 2| lect default line spacing|
18| ESC 3| Set line spacing|
19| =| Select peripheral device|
20| ESC?| Cancel user-defined characters|
| ESC @| Iniialize printer|
22| ESC D| Set horizontal tab positions|
| E| emphasized mode on/off|
24| ESC G| Turn double-strike mode on/off|
| J| Print and f ed paper using minimum units|
26| ESC L| Select page mode|
| M| character font|
28| ESC R| Select an international character set|
29| S| sta dard m e|
30| ESC T| Select print direction in page mode|
| ESC V| Turn 90° clockwise rotation mode on/off|
32| ESC W| Set printing area in page mode|
| | t relative print position|
34| ESC ＼

ESC a

| Select justification|
| 3| output paper-end signals|
36| ESC c 4| Select paper sensor(s) to stop printing|
| ESC c 5| Enable/ sable panel buttons|
38| ESC d| Print and feed paper n lines|
39| ESC p| General pulse|
41| ESC t{| STuelrencut pchsiadrea-cdtoerwcnopdreintatibnlge mode on/off
---|---|---
| p| Print NV bit image
43| FS q| Define NV bit image
| !| lect charact size
45| GS $| Set absolute vertical print position in page mode
46| GS *| Define downloaded bit image
| S /| Print downloaded bit image
48| GS B| Turn white/black reverse printing mode on/off
49| GS H| Select print g position of HRI characters
50| GS I| Transmit printer ID
| L| left margin
52| GS P| Set horizontal and vertical motion units
| GS V| lect cut mode an cut paper
54| GS W| Set printing area width
| | Set relative vertical print position in page mode
56| GS ＼

GS a

| Enable/disable Automatic Status Back(ASB)
| GS f| lect font for HRI characters
58| GS h| Set bar code height
59| k| Print bar code
60| GS r| Transmit status
| GS v 0| Print raster bit mage
62| GS w| Set bar code width
| |
| |
| < Add >|
1| ESC i| Full cut
2| ESC m| Partial cut
3| FS !| Set print mode(s) for Kanji characters
4| FS &| Select Kanji character mode
5| FS –| Turn underline mode on/off for Kanji character
6| FS .| Cancel Kanji character mode
| FS 2 c1 d1…|
7

8

| FdkC| Define user-defined Kanji characters lect Kanji character code system
9| FS S 1 2| Set Kanji character spacing
10| FS W| Turn quadruple-size mode on/off for Kanji character
11| RS| Beep Sound

Aroot Co., Ltd.

• 28-6, Gajangsaneopdong-ro, Osan-si, Gyeonggi- do, 18103, Republic of Korea
• TEL: +82-31-8077-5000
• FAX: +82-31-624-5310
• http://www.miniprinter.com.

References

• SEWOO

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