You usually need to modify the default printer driver. For various reasons, it may be necessary to replace the installed default printer driver and then modify it. Here's how to modify the default printer driver:

Step 1: Open the Device and Printer Manager.

In the control panel of Windows system, you can find the "Devices and Printers" manager. After opening the Manager, you can see all installed printers and their properties.

Step 2: Select the printer to modify.

Find the printer that needs to be modified in the Device and Printer Manager. Right-click the printer to pop up its properties menu.

Step 3: Open printer properties.

In the printer properties, locate the Advanced Options or Advanced tab. Then in this tab, you can find the "New Driver" option. Select this option if a new driver is installed. Otherwise, you can select the driver option, and then select the driver to install.

Step 4: Install a new driver

If the New Driver option is selected, you need to select a new driver to use. After selecting the driver, you can follow the prompts to install it.

Step 5: Restart the computer.

After installing the driver, you may need to restart your computer for it to take effect.

In short, modifying the default printer driver is a relatively simple operation, which can be completed in just a few steps. Through this operation, we can replace the installed default printer driver, thus improving the use effect of the printer.