Go to the HP Support homepage, select Printer , and enter HP A799 Thermal Receipt Printer into the search bar. A Warning About Third-Party Driver Sites
The HP A799 printer supports various legacy and modern enterprise environments. Before downloading, verify your operating system compatibility:
Your printer should immediately feed and cut a short receipt detailing the driver configuration. Understanding OPOS vs. Windows Standard (APD) Drivers
Go to Devices and Printers , right-click the HP A799, select Printer Properties , and check the Ports tab. Ensure it is assigned to a USB virtual printer port, not a generic COM port. Garbage Text or Strange Characters Printing
: For POS applications, you will likely need to install OPOS or JPOS drivers. These can often be found alongside the standard drivers on the HP FTP or through your POS software provider. You can look for files named OPOS Support For HP Printers on the h10032 FTP site. The installer will typically ask you to select HP A799/A799II Printer from a list. hp a799 thermal printer driver download link
Open the printer preferences from the Windows Control Panel. Look for the Document Options or Paper/Quality tab and ensure the Doc Cut or Page Cut feature is enabled.
To ensure system stability and security, always download POS drivers directly from the official manufacturer. HP packages its retail peripheral drivers into specific software packs.
Here are the steps to install and configure the printer for an OPOS environment:
Follow the on-screen prompts. Accept the software license agreement. Go to the HP Support homepage, select Printer
in service. It boasts a rugged design meant to withstand busy checkout counters, features a drop-and-print paper loading system, and prints crisp, clear receipts at very high speeds. By using the official drivers, you unlock the full functionality of the printer, including the programmable internal buzzer and the automatic receipt cutter. If you'd like, let me know:
Locate the file you downloaded in the section above.
Open the Windows and navigate to Devices and Printers .
Go to Printing Preferences > Advanced and set the paper size to match your physical roll width (typically 80mm). To help find the exact file you need, tell me: Understanding OPOS vs
HP does not always list the A799 on their main consumer driver page. Use this direct approach:
Finding the driver for the can be tricky because it was originally manufactured by CognitiveTPG , so support is shared between HP Official Support and CognitiveTPG Support . Direct Download Links The following are the primary sources for the A799 drivers:
If using a Serial (RS-232) connection, ensure the baud rate in the Windows device manager matches the printer’s physical dip-switch settings (usually 9600 or 19200). Receipts Cut Incompletely or Not At All