<human>:  How do I troubleshoot a printer that won’t print correctly?
<bot>: To troubleshoot a printer that won't print correctly, first check that the printer is connected to the correct power source and has paper loaded in the tray. Ensure that ink or toner cartridges are installed properly and are not empty. Check to make sure any cables connecting the printer to the computer are firmly plugged in. Reboot the computer and printer and try again. If the problem persists, try running any printer-specific diagnostics software to check for hardware issues. If all else fails, contact the printer manufacturer for additional support.