Riso Error A16-525 Jun 2026

Generic replacement screens often use a lighter plastic mesh that reflects more light than original metal screens, confusing the sensor. Drum Misalignment:

: If the master tore during a jam, ensure no loose scraps of paper are left glued down by ink, especially near the clamp or the edges of the screen. 3. Resolving a "False" A16-525 Error (Clean Drum) riso error a16-525

At this stage, it is most cost-effective to contact your local Riso service technician to replace the faulty sensor or board. Generic replacement screens often use a lighter plastic

A history of mechanical trauma can cause false readings. For example, if a paper jam previously caused the screen to catch on the separator hook, the underlying structure may be compromised. Resolving a "False" A16-525 Error (Clean Drum) At

Gently wipe the small glass lens of the sensor using a dry cotton swab or a swab dipped in isopropyl alcohol. Step 3: Check for Drum Hardware Damage

“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.”

Substandard, third-party masters can sometimes have different static properties or thicknesses, making them stickier and more prone to wrapping around disposal rollers.