Power Supply Unit (PSU) Failure

Model-Specific Notes: • T-Series (e.g., T1700/T2600): PSUs are often modular and relatively easy to replace. Check the power input connector on the PSU for any signs of arcing or damage. • Z-Series (e.g., Z6600/Z6800): These printers can have more complex PSUs. Ensure all internal power cables are securely connected to the main PCA and other components. • PageWide XL: PageWide XL printers have robust, often redundant, power systems. This error might indicate a failure in one of the specific power modules. Check the diagnostic logs for more granular PSU fault information. Expert Insight: Before concluding PSU failure, test the wall outlet with another device. If possible, use a multimeter to check the output voltages from the PSU (if safely accessible and with proper precautions). Look for swollen or leaking capacitors on the PSU board. Ensure the printer's ventilation grilles are clean and unobstructed to prevent overheating. Sometimes, a faulty component drawing excessive current can trip the PSU's protection circuit, making it appear as a PSU failure. For PageWide XL, consult the service manual for specific PSU diagnostic procedures and LED indicators on the power modules.