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I have recently gotten my hands on an old, used Risograph GR 1750. It is in working condition and prints like a charm. In the manual it mentions on page 58 (see image below) that it is possible to connect the Risograph to a PC. Unfortunately, it does not specifiy how this is done and the mentioned additional manual for the »Risograph Computer Interface System« is nowhere to be found.

Is anyone informed enough about this old machine to help me out and explain to me how I can connect it to a PC?

Manual Page 58

closed as off-topic by Cai, Westside, DᴀʀᴛʜVᴀᴅᴇʀ Feb 16 '17 at 1:08

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This appears to be a tech support question about fixing technology to work as advertised. Please edit the question so that it pertains to using technology to solve a design problem. You may want to check if it hasn't already been asked in Super User. In many cases, contacting the manufacturer is the quickest option." – Cai, Westside, DᴀʀᴛʜVᴀᴅᴇʀ
If this question can be reworded to fit the rules in the help center, please edit the question.