Riso Error A16-525 🔖 📍

If you have tried all the steps above—cleaned the contacts, used a brand new genuine ink cartridge, and reseated the drum—and the A16-525 error persists, the issue is likely a hardware failure.

Riso Error A16-525 is a common message on Riso digital duplicators, specifically indicating that a master remains on the print drum and must be removed before the machine can proceed riso error a16-525

: Regularly maintain your Riso duplicator according to the manufacturer's guidelines. This includes cleaning the machine, checking for wear and tear, and replacing parts as needed. If you have tried all the steps above—cleaned

Check Test Mode No. 551 to verify the drum's home position. Riso A16-525 error with missing master sensor - Facebook Check Test Mode No

Inspect the white plastic wheels or gears on the side of the drum clamp; if one is missing or broken, the clamp may not be seating correctly for the sensor to read it.

If cleaning and adjustment fail, physically inspect the (located on the main drive shaft) and the PF Motor encoder .

Troubleshooting Riso Error A16-525: The "Phantom Master" Fix