Print Monitoring Solutions News.

Released O&K Print Watch Linux 1.0.0.169

June 23, 2026

O&K Print Watch Linux 1.0.0.169

New print cost configuration features have been added:
- Added bulk editing of print costs.
- Added the ability to copy and paste print costs in the web interface for multiple printers.
Consumables monitoring has been extended for IPP printers:
- O&K Print Watch now monitors consumables status for a wider range of devices. Consumables monitoring is available not only for printers connected via socket://, lpr:// and dnssd://, but also for devices using the ipp:// and ipps:// protocols.
General improvements:
- Fixed a number of issues and improved stability and performance.

Released O&K Print Watch 4.19.0.5296

May 25, 2026 O&K Print Watch 4.19.0.5296.

New print cost configuration features have been added:

Added bulk editing of print costs.
Added the ability to copy and paste print costs in the web interface for multiple printers.

Paper size editing support has been added:

Added paper size editing in the web interface.
Fixed an issue with setting the base page cost for paper when editing paper sizes in the Control Program.

The web interface has been improved:

Report settings are now saved in cookies.
Fixed error display when adding printers.
Fixed currency symbol display.

Print server improvements and fixes:

Improved saving XPS documents to PDF.
Fixed an issue with enabling a printer in the database.
Added the ability to enable a printer on another print server through the database.
Fixed an issue during remote synchronization where records could be skipped for print servers in different time zones.

License handling has been improved:

License information is now displayed in the main window title.
Fixed site license validation on Windows Server.

New Free Version of O&K Print Watch Released

After a long break, we have released a new version of O&K Print Watch Free. The free edition is now based on the current O&K Print Watch product line and includes many improvements added over the years.

The updated free version brings a more modern web interface, performance improvements, better stability, improved PDF handling, and support for newer monitoring features.

updated web interface
improved PDF generation and document handling
bug fixes and stability improvements
better performance
improved printer and consumables monitoring
document content viewing capabilities
support for modern O&K Print Watch functionality

Recent versions of O&K Print Watch also introduced full support for TSPL (TSC Printer Language), including monitoring of TSC barcode and label printers, page counting for TSPL documents, print job content viewing, and integration with the reporting system.

Download O&K Print Watch Free →

Read the article: How to Open SPL Files

Released O&K Print Watch 4.19.0.5257

February 24, 2026 O&K Print Watch 4.19.0.5257.

Improved subscription licensing model:

Flexible scalability for organizations of any size.
Simplified license management.
Improved performance.
Removed database query limitations for subscription licenses.

Full support for TSPL (TSC Printer Language) added:

Print monitoring for TSC barcode and label printers
Page counting for TSPL documents
Print job content preview
Integration with the existing reporting system

Web interface improvements:

Report filters are saved in cookies
Period and filter parameters are preserved between sessions
Improved user experience in the web interface

Server improvements and fixes:

Optimized PDF copy generation of printed documents (reduced database load)
Fixed calculation of the “Every Month” report delivery period
Fixed database upgrade error
Fixed user print quota deletion issue
Fixed MSI service removal issue
Fixed license verification issue when using remote mailslots

Released O&K Print Watch Linux 1.0.0.164

January 21, 2026 O&K Print Watch Linux 1.0.0.164

New email reporting module:

Notifications for every printed document.
Periodic reports on all printed documents for a specified time interval.
Summary and detailed print history reports (by printers, users, and groups).
Reports on current device counter readings.
Automatic alerts when consumable levels drop to 50%, 20%, 10%, and 1%.
Support for flexible report scheduling.

Additional improvements:

Added SMTP timeout setting for reliable integration with any mail server.
Report templates and localization files are now stored in: /opt/printwatch/templates and /opt/printwatch/locales
Summary and detailed print history reports (by printers, users, and groups).
Reports on current device counter readings.
Automatic alerts when consumable levels drop to 50%, 20%, 10%, and 1%.
Overall system stability improved; various bugs fixed.

Printing Pages of Different Sizes on Different Printers with O&K Print Router

How to print documents that contain pages of different sizes.

Released O&K Print Watch 4.19.0.5236

July 1, 2025 O&K Print Watch 4.19.0.5236.

Duplicate Email Notifications Fixed: the logic for sending reports on device status changes and consumable level changes has been corrected—duplicate emails will no longer be sent.

Instant Report Sending from Web Interface: added a “Send Now” button for on-demand distribution of the current status directly from the control panel.

Expanded SNMP Monitoring:
- Canon MF4800 Series
- Canon iR2520
- HP LaserJet Professional M1212nf MFP
- Full integration with Pantum printers

Proper UTF-8 Handling: fixed errors in email report generation—any Unicode characters are now validated and correctly displayed.

Document Name Conversion Optimization: resolved the issue with truncated print job names for certain PCL drivers—document names now appear in full.

Web Interface Improvements: visual and functional bugs have been fixed, improving page load speed and overall stability.

General Fixes and Optimizations: minor bug fixes from the previous version have been implemented for even more reliable system performance.

Released O&K Print Watch Linux 1.0.0.134

13 May 2025 O&K Print Watch Linux 1.0.0.134.

Added support for systems with glibc 2.16.
Fixed an issue with automatic addition of all printers during the first installation on Linux systems using RPM packages.
Implemented automatic database cleanup based on specified parameters.
Optimized reading of settings from the database.
Fixed date range selection issue in the web interface.
Added a database information panel to the web interface.
Enabled deletion of document records and their contents from the database via the web interface.
General bug fixes and stability improvements.