gestetner copy printer 5306b reset

[Suirdzign]

Hi there,
I have recently acquired a gestetner copy printer 5306b from a client that owed me a favour.....dunno if they still do after this
Basically when I power up it is asking for a PIN number.
I know it's an obsolete machine but there are so many consumables it seems a shame to waste

Any help appreciated

[ridgemill]

This may be similar to a Ricoh JP1210, in which case see: User Codes; How To Set User Code Mode (# 120) - Ricoh PRIPORT JP1210 Operating Instructions Manual [Page 86] (https://www.manualslib.com/manual/140751/Ricoh-Priport-Jp1210.html?page=86)