Riso cz 100. How do I correct error code A-16-525?

Yes there is

https://www.google.com/search?safe=off&rlz=1C1QJDB_enCA643CA644&sxsrf=ALeKk00GCBRY4Pk-3OGaM2FMgnS1E3EaLQ:1621893956592&q=Riso+cz100+machine&spell=1&sa=X&ved=2ahUKEwiZl5XpqePwAhXfRDABHZsmAAwQBSgAegQIARAx&biw=1920&bih=937

..

http://www.fixya.com/support/t25913869-riso_cz_100_error_p12_305

Sounds like part replacement will be necessary, by a professional technician, rather than a "do it yourself" fix.

http://www.copytechnet.com/forums/digital-duplicators/91846-riso-cz-100-a.html

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Quoting from the link above a copytechnet: "Originally Posted by raztech
So...the code error p12-305 apears when i push the print button ..nothing move and the code go on...
Answer: Master compression HP sensor does not go ON within 1 second after the master compression motor operates in the return direction"

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A problem i have with this printer is not picking up the paper

I have searched every where. All i can find is the manual. if you go to page 68 it might help you figure out the error code. you may have to contact the manufacturer.
Contact UsRISO

manual.
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=8&cad=rja&uact=8&ved=0CDgQFjAHahUKEwjChJTBp8zIAhVCzWMKHR2_BOw&url=http%3A%2F%2Fwww.riso.co.za%2Fpdf%2FCZ100.pdf&usg=AFQjCNHAsRwFUOU348EpKzn7v1OkdKVZvw&sig2=BPHzt1Q0qcmFuB9bbbg2Og

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