. While it often appears when a master is actually stuck, it is notoriously common as a "false error" on older or modified Risograph machines like the EZ and RZ series. 1. The Quick Fix: Manual Reset
The Riso digital duplicator is a workhorse in high-volume printing environments like schools, churches, and print shops. However, encountering an error code can instantly halt your productivity. One such disruptive code is the .
Before touching any internal components, empty the physical waste container. Pull out the master disposal box. Empty all used masters into a trash bin.
Wipe down the rubber rollers to remove ink buildup and restore traction. riso error a16-525
Reinstall the drum and the master disposal box firmly. 3. Check for False Positives (Sensor Issues)
Press and hold the and Start keys simultaneously while turning the power switch back ON . Release the keys once the display changes.
According to Riso service documentation , the A16-525 error stands for . It specifically indicates that "Master Remains on Print Drum" . The Quick Fix: Manual Reset The Riso digital
Usually involves holding down specific keys while turning on the machine.
Regularly vacuum or blow out the master making and disposal cavities to keep dust from blinding the optical sensors.
This error code indicates that .
If the error persists after cleaning, the sensor may be faulty and require replacement.
Wipe the black strip with a dry, lint-free cloth to remove paper dust.
Every time your RISO prepares to burn a new master sheet, it initiates a disposal cycle. The clamp on the drum opens, the old master is peeled off by the disposal unit, and it is pushed into the master disposal box. Once this completes, an internal sensor checks the drum surface to confirm it is bare and ready for the fresh master. Before touching any internal components, empty the physical
If the error persists even when there is no master on the drum, try these common community fixes: Darken the "Light Absorber Strip"