Pull the green lever and slide the print cylinder entirely out of the machine.
Check the master guide plate, feed rollers, and cutter area. Wipe away any stray bits of stencil film, paper fiber, or excess ink buildup using a lint-free cloth dampened with a small amount of isopropyl alcohol.
This comprehensive guide will explain exactly what this error means, why it happens, how to troubleshoot it, and how to prevent it from delaying your next print job. What is Riso Error A16-525?
If you have completed all the troubleshooting steps above and the A16-525 error immediately reappears upon powering up, the issue may be mechanical or electrical. You should contact a professional technician if: riso error a16-525
The primary causes and solutions for false readings include: Clean the Light Absorber Strip (The "Black Fuzzy Strip")
: The master-on-drum sensor is dirty or blocked by ink/dust, leading it to signal that a master is present when it isn't.
: Check the master disposal unit and the entrance of the disposal box for crumpled master pieces. Pull the green lever and slide the print
Reinsert the drum, turn the machine back on, and attempt a test print. 2. Inspect and Clean the Sensors
: Use a lint-free cloth lightly dampened with high-percentage isopropyl alcohol. Gently scrub any ink buildup off the black strip. Let it dry completely so it regains its matte appearance.
Riso rz300ep: error a16-525 - Конференция StartCopy This comprehensive guide will explain exactly what this
Inspect the back area where the drum meets the disposal unit. Look for a partially crumpled or torn master stencil.
Environmental humidity or static buildup can cause used masters to stick to the disposal chute or roll up prematurely, failing to reach the box.
It's important to note that the A16-525 error is distinct from errors like A04-303 (Master Disposal Error) or A01-222 (Master Mis-feed), which involve issues with the master removal or disposal process itself. While they can sometimes occur together, A16-525 specifically points to the machine detecting an unexpected master presence.
Small scraps of master material stuck in the clamp or sensor area. Troubleshooting & Fixes Clean the Absorber Strip:
- Action: Open the machine's front door and gently pull out the print drum (cylinder). - What to do: Carefully inspect the entire surface of the drum for any remaining master material. Pay close attention to the master clamp area. Remove any and all fragments you find. Use a soft, lint-free cloth to wipe down the drum, especially the area around the master clamp. - After cleaning: Push the drum all the way back into the machine, close the door, and turn the machine back on. Often, this simple act is all that's needed.