Riso Error A16-525 · Simple & Full

This is the most common fix for error 525.

Inspect the sensors for any visible damage or blockages. Cleaning the sensors may resolve the issue if they are dirty.

Check the print drum for proper alignment and ensure it is not damaged. Consult the machine's manual for instructions on how to check and adjust the drum. 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.

Potential hardware failures associated with this error include: This is the most common fix for error 525

At this stage, it is most cost-effective to contact your local Riso service technician to replace the faulty sensor or board.

This is the most common cause. The PF Register Sensor is an optical device. Over time, paper dust, ink mist, and static-charged debris stick to the sensor lens. If the sensor is dirty, it cannot "see" the paper edge correctly. At this stage, it is most cost-effective to

Verify that the toner or ink levels are adequate and that they are correctly installed. Replace or refill as necessary.

Follow these steps in order to resolve the A16-525 error, starting with the easiest solutions.