USER GUIDE
THERMAL TRANSFER LABEL PRINTER
MODEL: 50244
www.qoltec.com
Introduction
Thank you for purchasing our thermal transfer label printer. The printer meets the real-time and batch label
printing requirements, via serial, parallel, USB and Ethernet. The device provides thermal transfer or transfer
printing. This printer model supports a wide range of printing paper types.
The printer is specially packed to prevent possible damage during transportation. If you suspect that your
printer has been damaged during shipping, please check it carefully and then, after identifying the damage,
contact your dealer directly to determine the extent of the damage. Keep the package in order to be able to
send the printer in for repair.
If you do not find any damage, place the printer on a stable surface, and then open the package.
Make sure you have the following items:
- Printer
- Driver CD
- Plugin
- Power Supply
- Other accessories
Keep the device and accessories for future transport needs. If any equipment is missing, please contact your
dealer.
APPEARANCE
Front panel
LED indicators
FEED button
Upper cover opening switch
Paper outlet
Rear panel
Upper cover opening switch
Inside
Printhead opening switch
Upper cover
Spindle ribbon
Printhead opening switch
Paper guide
Paper feed roller
Bottom
External paper inlet
Power button
Parallel communication interface
USB
Serial
Cashbox
Power input
Note: Illustrative image. The back panel of the device differs depending on the type of printer you have. Please
refer to your device.
INSTALLATION
Printer installation
Power adapter
1. Place the printer on a smooth surface.
2. Make sure the power is off.
3. Connect the serial or USB cable to the appropriate socket on the computer.
4. Connect the power cord to the back of the printer, and then the other end to the power outlet.
Note: Turn off the printer on the switch before connecting the printer to the power supply.
Illustrative image. The back panel of the device differs depending on the type of printer you have. Please refer
to your device.
Installation of thermal transfer tape
1. Press the switches at the left and right of the top cover at the same time to open it.
2. Place the roller on the spindle of the feeder.
3. Press to the left and then to the right.
4. Press the print head open switch to open it.
5. Put the new tape on the handle.
6. Wind the tape according to the image below, in the direction of the arrow so that the tape is tightly wrapped
and there are no creases on it.
7. Close the print head by pulling the cover with both hands down. Make sure the print head is completely
closed.
Paper assembly diagram
Ribbon take up hub
Printing head
Used
ribbon roll
Thermal transfer ribbon
Paper guiding device
Paper roll
Black mark sensor
Ribbon move
Inner paper move
Outter paper move
Label installation
1. Press the switches at the left and right of the top cover at the same time to open it.
2. Install the label rollers on the feeder spindle.
3. Guide the paper (print side up) through the guides, label sensor, and a pressure roller.
4. Adjust the width of the guides to the width of the label paper.
5. Close the print head by pulling the cover with both hands down. Make sure the print head is completely
closed.
LED functions
LED
Sound signal
Problem
Flashes 2 times
2 times
Mechanism error
Flashes 3 times
3 times
No paper
Flashes 4 times
4 times
Error cutting paper
Flashes 5 times
5 times
Overheating
Flashes 6 times
6 times
Error opening printer
Flashes 7 times
7 times
Character error
Flashes 8 times
8 times
Black mark error
Flashes 9 times
9 times
Failure SDRAM
Flashes 10 times
10 times
LED faults
Flashes 11 times
11 times
Ribbon error
Key Functions
1. Loading paper
When the printer is ready to work (the LED is lighting on blue) - Press the button to load the label paper.
2. Pause printing
While printing, press the FEED button gently to pause the printing. Pressing the FEED button again will allow
you to continue printing.
Power on functions
The printer has three power-on features available to enable you to test or set up your hardware. Pressing or
releasing a button when the printer starts up will activate these features.
Please refer to the table below for more information on each feature.
Function:
Instruction
Power on self-test
A. Disconnect the printer from the power supply.
B. Make sure the printer has the paper loaded and then plug the printer back to power supply. The
printer will start printing a test page after releasing the paper load button.
Printer initialization
A. Disconnect the printer from the power supply.
B. Open the printhead cover, and then press the FEED button. Connect the printer to the power supply,
hold down the FEED button for 10 seconds, the printer will clear the download data from the internal
memory and restore the factory default settings.
Detect ribbon and automatic
Turn on the power, open the cover to replace the paper. The printer will start the ribbon detection and
location
automatic location.
Detecting a thermal transfer ribbon.
This feature is available in the thermal transfer printer model. It is designed to check the state of the tape.
Print a test page
This function is to check that the printer is working properly, with an auto test and display settings.
To verify that the label is in a good position, follow these steps:
1. Make sure the paper is well set.
2. Turn off the power.
3. Press the FEED button and turn on the power.
4. When the printer starts printing, release the FEED button.
5. The printed page is the auto test page.
Initialization
Initialization means clearing the DRAM and restoring the printer to factory settings.
To initialize the printer, follow the steps below.
1. Turn off the power.
2. Open the cover and press the FEED button, then turn the power off and hold down the FEED button for
about 10 seconds.
3. When all the LEDs are off, release the FEED button. The printer will restart and complete the initialization.
Troubleshooting.
The table below shows typical problems and ways to solve them. If there is no solution in your table, contact
your distributor for help.
Problem
Possible cause
Disable LEDs
The printer is not properly connected to the wall outlet.
The printer is off.
The thermal transfer ribbon is over
Bad tape assembly
The paper roll is over
Bad paper roll assembly
Space sensor error
Paper jam
Recommended solution
Make sure the printer is properly connected
to mains power.
Turn on the printer.
Install a new thermal transfer ribbon
Reassemble the tape by following the tape
mounting point.
Install the label paper roll
Re-install the label paper roll corresponding
to the instruction guide
Re-adjust the dimension and print
Reset dimension settings
Clean internal parts
Plug in the cable again.
If you use a serial cable:
Connect the serial cable and make sure the
pins are hooked up one by one.
The printer does not
Check the data rate serial port on the self-
print
test page.
If you are using an Ethernet cable:
The communication cable is not properly connected to the
printer and to the computer.
Communication interface error
Make sure Ethernet RJ-45 is green/orange
Make sure the printer obtains an IP address
in DHCP mode.
Make sure that the address is correct when
using a fixed IP address. If you do not have it
added, do so, then wait until the printer
connects to the server. Then check the IP
address again.
Make sure the surface of the ink ribbon is
properly installed.
Reassemble the tape.
Clean the printer head.
The tape and paper are not properly installed.
Poor print quality
The printer head is covered with dust or an adhesive
substance.
The printer head is damaged.
Clean the printer head
Use the setting mode to adjust the speed
and saturation of the print color.
Print the auto test page to verify that the
printer head is damaged. If it is, replace it
with a new one.
Change the tape and label paper to fit
properly.
Make sure the printer head is completely
closed.
Label size is incorrect or incomplete.
Paper jump when
When you change the paper to labels, the sensor does not
printing
The label sensor is dusty, resulting in incorrect reading.
detect them.
Print content is
Change size
Use a fine brush to clean the sensor from
dust.
Bad label size
incomplete on the
Set the right size
sides
The print head pressure is uneven.
Incorrect mounting of the tape.
Paper label bent
Incorrect label assembly.
Invalid print density.
Set the appropriate print density.
Set the appropriate label width.
Wrong label feeder
On the black label
There is dirt on the print head or on the rubber roll.
Clean the print head or rubber roller.
Unstable printing
Set the printer in hex dump mode
Restart the printer and enter dump mode
appears gray lines
RS232 communication is invalid
Reset RS232 again
Printer maintenance
To maintain longer print life and high print quality, the following guidelines are recommended.
1. To clean the printer, use the following accessories:
- Cotton swabs.
- Cotton fabric.
- Alcohol used for industrial purposes.
- Brush for cleaning pollen.
Maintenance and cleaning procedure:
Printer part
Steps
Suggested cleaning frequency
1. Turn off the printer
When replacing label paper
2. Wait at least 1 minute until the head is cooled down
Print head
3. Use a cotton swab soaked in alcohol to wipe the print head surface.
Rubber roll
1. Turn off the printer.
When replacing label paper
Part for tearing paper
Use a cotton fabric soaked in alcohol.
When it is necessary.
Czujnik
Gently wipe the dust with a brush
Every month.
Wnętrze urządzenia
Gently wipe the dust with a brush
When it is necessary.
2. Use a cotton swab or cotton fabric soaked in alcohol.
Specification
Resolution
High speed 203dpi
Printing method
Thermal transfer/thermal
Printing speed
127mm/s
Maximum print width
104mm (4.09' )
Maximum print length
2286mm (90' )
Interface
USB/ (USB+ Serial+Parallel+Ethernet)
Print head (abrasion resistance)
50km
Commands
TSC
Ribbon OD
Max. 60mm
Length
Max. 300m
Width
Min. 30mm; Max. 110mm
Size
25.4mm
Rolling method
Outside
Printing
Ribbon
Min. Roll ID
25mm
Paper type
Continuous, single, folding, black labels
Rolling method
Print the page outside
Width
Max. 120mm (4.72"), Min: 20mm (0.78")
Roll core size
25.4mm~38mm
The gap between the labels
Min.2mm
Thickness
0.058mm~0.305mm
Label length
10mm~2286mm
Software
Windows 2000,XP,Vista,Win7,Win8,Win10, Windows Server 2003&2008
Character set
Font
Print font
1D code
Type of bar code
Specification of the environment
Ul. Chorzowska 44B
44-100 Gliwice
Poland
www.qoltec.com
ASCII Font A: 12*24
ASCII Font B: 9*24
Chinese 24*24
Code39, Code93, Code128 subsets A, B, C, Codabar, Interleaved 2 of 5, EAN13,EAN-14, EAN-128, UPC-A, UPC-E, EAN and UPC 2(5) digits add-on,
MSI,PLESSEY, POSTNET, China POS, ITF14
Image format
Producer: ntec
GB18030 (Simplified Chinese)
2D code
QR Code
Graphics
Support BMP/PCX/BAS
Temperature
Working 5-45°C, Storage: -10~50°C
Humidity
Working : 25%~85% ; Storage 10%~90%
Power
Input AC 110V/240V, Output: DC24V/2.5A,60W
Memory
4MB
Dimensions
223*286*169mm
Weight
2.35kg
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