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The self-test result indicated whether the printer is operating properly. Also with this, user can check 
following options or 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 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. SELECT BAUDRATE MODE
3. HEXADUMP MODE

3. Press the FEED button consecutively (1~3)

1. ASCII PRINT
(press the FEED button once)

2. SELECT BAUDRATE MODE 
(press the FEED button twice)

3. HEXADUMP MODE 
(press the FEED button triple time)

Printing test page 
constructed with ACII code.

Set the speed of Serial Interface
(You can set the BAUDRATE in 
this mode)

Printing the HEX value received 
from the interface

 

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

4. The printer is ready to receive data after finishing setting. 

4. Self Test

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.

5. ASCII Print

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

SELECT BAUDRATE BY BUTTON
1.     9600bps
2.   19200bps
3.   38400bps
4. 115200bps

6. Select Baudrate Mode

Summary of Contents for DS-820

Page 1: ...All specifications are subject to change without notice Receipt Printer User s Manual MODEL DS 820 DS 820 Rev A 8 12...

Page 2: ......

Page 3: ...tions 18 9 2 Auto Cutter Specifications 20 9 3 Interface 20 9 4 Electrical Characteristics 20 9 5 Environmental Requirements 21 9 6 Reliability 21 9 7 Certification 21 10 Command List 22 Table of Cont...

Page 4: ...ude these items If any items are damaged or missing please contact your dealer for assistance The Printer User s Manual Roll Paper Interface Cable optional Adaptor Optional 2 Setting Up the Printer Fo...

Page 5: ...33 GROUND System ground 34 NC 35 NC 36 SELLECT IN Input Printer select signal Ethernet Interface PIN SIGNAL I O 1 Data Out Output Data 2 Data Out Output Data 3 GND Ground 4 Data IN Input Data 5 Data I...

Page 6: ...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 2 2 2 Cash Drawer Connector The printer can operate...

Page 7: ...n CAUTION When the paper is jammed with 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 pa...

Page 8: ...the top cover of the printer STATUS PAPER ERROR POWER REMARKS RED RED GREEN Power off OFF OFF OFF Normal power is not supplied to the printer Power on OFF OFF ON Normal power is supplied to the printe...

Page 9: ...le time Printing test page constructed with ACII code Set the speed of Serial Interface You can set the BAUDRATE in this mode Printing the HEX value received from the interface Wait for 5 6 seconds if...

Page 10: ...A period is printed for each code that has no ASCII equivalent 6 Turn off the printer 7 Turn on the printer 7 Hexadecimal Dump 8 Printer cleaning If the interior of the printer is dusty printing quali...

Page 11: ...mm sec 3 Dot density 180 DPI Hor Ver 180 180 0 142mm 0 142mm dot 4 Printing Width 180 DPI Max 72mm 512 dots 5 Number of print columns No of columns Font A Font B 180 DPI 42 56 6 Roll paper Refer to ch...

Page 12: ...24V 10 and more than 1 75A 2 Be careful about installing the printer in an area where there is noise 3 Take the appropriate measure to protect against electrostatic AC line noise etc 9 5 Environmenta...

Page 13: ...aper sensor s to output paper end signals 36 ESC c 4 Select paper sensor s to stop printing 37 ESC c 5 Enable disable panel buttons 38 ESC d Print and feed paper n lines 39 ESC p General pulse 10 Comm...

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