All error codes By model: T1100T1500T1700T2300T2500T610T730T830T930Z5200Z6Z6200Z9 Model T1100 Error Code 52.1:YZ Problem Description Failure to switch ON Drop Detector (DDP) Corrective Action Options Turn off/on. Check drop detector cable, check service station cable, repalce drop detector, reset calibration of drop detector, repalce PrintMech PCA, replace Formatter Schedule Service Call ⭢ (301) 340-0000 Email ⭢ Contact Us