Since you asked to "come up with a post," here are three options tailored for different platforms:
Paper dust and ink can cause mechanical slippage and false sensor readings:
Hi riso community ! I've got a A16-525 error on one of my drums but the
If the master screen on the drum is torn or damaged, it can snag the master, preventing removal. riso error a16-525
: Pull out the print drum, manually remove any master sheet present, and re-insert the drum. Trigger Condition : The print-drum set sensor transitions from while the machine believes a master is still attached. 2. Common Causes for "False" Errors
If the error occurs on a bare drum, the light absorber strip is the primary culprit.
It is highly common for operators to encounter a persistent even when the drum is completely blank. This means the machine's reflection or detection mechanism has been compromised. Since you asked to "come up with a
Use a dry cloth or compressed air to clean any paper dust or ink debris from the sensor lens. 3. Check for Drum Damage (Screen Issues)
The sensor lens inside the body of the RISO printer may be covered in paper dust or atomized ink mist, blinding its capability to read the drum properly.
If cleaning and adjustment fail, physically inspect the (located on the main drive shaft) and the PF Motor encoder . Trigger Condition : The print-drum set sensor transitions
It thinks there is a white master covering the strip. If it sees no reflection: It knows the drum is bare.
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.
: Use a dry cotton swab or a microfiber cloth to gently clean the glass lens of the optical sensor. Avoid heavy solvents on the sensor itself to prevent clouding the plastic optics. How to Reset the Riso After a False Error
Pull the green lever and slide the print cylinder entirely out of the machine.