Riso Error A16-525 Extra Quality May 2026

Riso Error A16-525 typically indicates that the machine is "Waiting for the master to be removed"

| Step | Action | What to look for | |------|--------|------------------| | 1 | Power cycle the machine completely. | Wait 30 seconds after power off before restarting. | | 2 | Open front cover and check for jammed paper near drum area. | Remove any scraps, especially near sensors on left/right sides. | | 3 | Remove and reseat the error-indicated drum unit. | Pull drum out halfway, push back in firmly until it clicks. | | 4 | Check drum lock lever is fully closed. | Loose drum lock will misalign home sensor reading. | riso error a16-525

To minimize the risk of encountering the Riso error A16-525 in the future, consider the following preventive measures: Riso Error A16-525 typically indicates that the machine

What the machine thinks:

“I sent the paper. I waited for the sensor to trigger. The sensor did not trigger within the allowed window. Either the paper didn’t arrive, the sensor is lying, or the roller is slipping.” | Remove any scraps, especially near sensors on

: Physically remove any master remaining on the drum and ensure the disposal box is not full. The Power Cycle : Turn the machine off, hold down the yellow Reset button

Drum Angle Adjustment

: If the drum isn't stopping at the exact right angle, the sensor may be looking at the metal body instead of the velvet strip. In Test Mode, Simulation 941 (Position-A adjustment) or Simulation 942 can be used to tweak the drum angle.