QLS Kiaro 50 D Windows Printer Drivers
Download Loftware’s Free QLS Kiaro 50 D Printer Driver to print from any Windows application. Optimize printer performance by using Loftware Cloud to design your barcode and RFID labels and tags and your coding and marking messages easily, ready to print.
Version
September 5, 2025
10.6.24
Supported printers
QLS Kiaro 50 D
Installation guides
Tested on
Windows 8.1 | 10 | 11
Windows Server 2012 R2 | 2016 | 2019 | 2022 | 2025
CPU Architecture x86, x64
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Technical specifications
| Feature | Support |
|---|---|
| Technology type | Color Inkjet Label Printer |
| Color mode | Full Color |
| Info availability | None |
| Number of printheads/groups | 1 |
| Print width to | 49 mm |
Release Notes
10.6.24
- Not Accessible status is now returned when querying for status when printer is not connected.
- Prninst will no longer show empty list of ports when user asked for port selection.
- All printers get updated after Windows upgrade and no longer produce errors when opening print preferences dialog.
10.6.21
- When installing fonts on a Windows system with the German language setting, they were not listed in the Driver Settings under Font Download. This is fixed now.
10.6.15
- When user creates port with non-English letters in its name, port was not automatically selected. This is fixed now in the installation utility.
10.6.12
- Fixed driver installation crash on Windows Server Datacenter environments.
- Printing from Microsoft Universal Print Connector is working now.
- Added back translations for printer status (job status in print spooler, enhanced status checking from application).
- An issue with some of the True Type fonts not being shown in the download dialog has been solved.
10.6.11
- Fixed simultaneous printing and status checking which caused the printer spooler to stop working.
10.6.10
- Fixed the issue of stopping printing due to "No connection" error when printing on multiple printers simultaneously.
10.6.9
- The installation of a network printer has been corrected, ensuring that the network port number is now correctly set.
- Adding an existing printer model to a different port no longer causes the printer installation to fail.
- Minimized usage of memory consumption in the Print Spooler windows service.
10.6.8
- Unidirectional printer drivers are now installed on LAN port without error message.
- Fixed installation issue preventing printers being installed on USB port.
- Printer network discovery now works on servers with multiple network adapters.
- Corrected driver update procedure, no longer removing printers that do not match case sensitive printer name.
10.6.7
- Printer installation wizard now shows correct port choices when installing the driver.
10.6.6
- Stabilized driver Port monitor and Language monitor memory consumption.
- Stabilized memory consumption in the windows environment when sending data to printer.
- Redesigned installation process in the installation utility wizard. Added logging functionality to the installation utility.
10.6.0
- Update port monitor functionality to prevent possible memory consumption.
- This is initial release of Loftware printer driver, rebrand from NiceLabel printer driver family.
10.5.2
- Driver core stabilization by improving memory and heap allocations.
- Redesigned the self extracting driver package users download from the internet web page.
- Stabilized driver's communication component.
10.5.0
- Printer options resolution, darkness and speed are now correctly merged when changing printer models.
- Stabilized communication interface between the driver and the Label Design application.
- Removed limitation of loaded driver packages on Server 2008 and Server 2016 system.
- Corrected status response when multiple status queries are requested at the same time.
10.2.5
- QL120 and QL120D models is supported.
- QL120 series support option “Use stored calibration”.
10.2.2
- Fixed crash of driver when document name longer than 260 characters
10.0.0
- Fixed problems in case user set different HDPI and VDPI in landscape orientation.
- Menu for using settings from printer or driver is redesigned and improved.
- Added capability to set all printer supported parameters to be controlled by the printer.
- Added support for web based printer management.
- Change the print preview so when the label is too long the end of the label is visible.
8.5.0
- Communication with the printer is working now also when port monitor logging is enabled on non English Windows OS.
8.3.1
- Improved performance Driver initialisation time was decreased for up to 30%.Smaller file footprint Driver file size was reduced for up to 60%.Improved installation utility PrnInst better supports multi user environments. Driver upgrade procedure was improved for installations with large number of printers.
8.2.0
- Driver stability was improved and memory usage was optimized.
8.0.50
- User can now use Reload to upload entire list of virtual fonts to printer again, instead uploading each virtual font individually.
- Procedure for updating printers is improved in Prninst application that all settings for all users are correctly preserved.
- Prninst application automatically detects printer(s) connected to local network.
8.0.22
- Fixed print spooler crash using latest driver's language monitor.
8.0.21
- Driver Maintenance, Settings and Support actions are working also with printer name longer than 32 characters.
8.0.20
- Initial Version 8 release: Redesigned and updated User Interface. Added and improved Print Preview to be shown on more panels. Added new Tool options for easier Maintenance, Setup and Support. Added options for sending files or commands to the printer. Added possibility to toggle Status Checking during printing. Fixed in-corrections when displaying driver on High-DPI monitors.
- During printer driver installation and uninstallation the Unicode printer names are fully supported.
- Improved displaying of Network discovered printers while sorting and graying already installed printers during printer driver installation.
- Minimized the frequency of displaying the splwow64 thunking spooler (SplWow64) message during printer installation.
- Upgraded uninstall of Ports and Port Monitors when printer removing the printer driver.
- During printer driver installation additional fields Location and Comment can be set.
7.3.60
- Kiaro 50 D can successfully print with NiceLabel driver.
- Installation of 32bit driver for sharing printer on 64bit OS has failed. This is corrected now.
7.3.05
- When you select QLS Kiaro printer that is shared in the new label wizard, Nicelabel Designer has crashed. This is fixed now.
7.3.01
- Kiaro printers are identified also with new USB plag&play ID's with company name AstroNova.
7.2.01
- Communication with the printer was improved on USB and LAN port.
7.1.00
- Magenta+ color option added on supported models.
6.0.15
- Fixed crash during installation of new Port on Windows Server 2012 and 2012 R2.
- Fixed printing of garbled graphics on certain label dimension from Windows applications.
- Added support for Ink Refresh option.
- Addded support for cutter.
- Fixed issue when it sometimes failed to print first page when printing to LAN port.
- When printing large quantities of labels Data error (size) error will no longer happen.
6.0.13
- Optimize printing performance.
- Added new options for Print Quality, Paper Types and Color Profiles.
- Added support for new printers: Kiaro! 50.Added support for Durable series: Kiaro! D, Kiaro! 50D.
6.0.08
- Unprintable area is now correctly displayed on all orientations (rotated portrait or landscape).
- Swiftcolor and QLS Kiaro! are presented to NiceLabel as full color drivers which changes color picker for elements from palette to full color.
6.0.07
- Corrupted driver data does not crash the driver.
- When printing OpenType fonts from labelling application (version older than 5.4.5), printing fails.
- Import from DRS (old driver export format) now includes stocks.
6.0.06
- Next button is enabled when a printer is selected while selecting printer during printer uninstallation.
6.0.04
- Fixed problems with default ellipse element in labelling problem. Thickness is now set to 1mm (not 0mm).
- Translations update
- Fixed printing of OLE objects
- After memory card is formatted, "Test" and "Delete" buttons are not disabled
- Uninstall and Uninstall All options in Printer Install Wizard will show only filtered driver list.
6.0.03
- Import from DRS (old driver export format) now includes Custom commands.
6.0.02
- Corrected memory allocation, so Windows system will no longer run low on memory resources.
- Correct graphics instead of black rectangle will now be printed when printing a label with changing graphics on multiple pages.
- Kiaro printer no longer prints a garbage in case of printing variables from the database. Also fixed elements (rectangles) are not printed on second label if they are not in lebel design.
- NiceLabel inverse element has been disabled, because the printer does not support it.
- Labels in landscape or rotated landscape orientation are printed correctly.