All error codes By model: T1100T1500T1700T2300T2500T610T730T830T930Z5200Z6Z6200Z9 Model Z5200 Error Code 77:YZ Problem Description Web access application. The web server is not functioning Corrective Action Options Reboot. Check the printer has latest Firmware, update. Schedule Service Call ⭢ (301) 340-0000 Email ⭢ Contact Us