If you have manually configured a static IP address, subnet mask, or gateway, write these down. A factory reset wipes these settings clean. You will need to re-enter them manually after the reset is complete.
Would you like the exact button sequence for your specific issue (e.g., red light, wrong paper size, skipping labels)? xprinter xp-420b reset
Here are the most common scenarios requiring a reset: If you have manually configured a static IP
If successful, the printer will usually enter "Self-Test Mode." It will automatically print a long receipt. This receipt contains the firmware version, the printer model, and—crucially—the current printer settings . Would you like the exact button sequence for
Sometimes the "reset" needs to happen in the software driver, not the hardware. If your XP-420B prints correctly from one app but not another, the driver settings are corrupted.
The Xprinter XP-420B has a physical button that doubles as a multi-function diagnostic tool. This method recalibrates the label gap sensor—one of the most common reasons for resetting.