Hello, I have a fairly clean IIC Apple Scribe Printer, select light flashing 3 times. I've checked that paper and ribbon are loaded and the cover is in place. According to the manual 3 flashes per second indicates "out of ribbon."
I disconnected the small photoresistor sensor board that looks to see if the ribbon is present. The photoresistor checks out ok, shows infinite resistance until I shine a flashlight on it, and then the resistance comes down to something readable on the multimeter. I even went so far as to put a small piece of tape over the photoresistor to block all light, still 3 flashes.
Has anyone seen this issue (select flashing 3 times) with the ribbon, or cracked one of these open for further troubleshooting? Something I’m missing? I’m debating if I’ll take this whole thing apart to troubleshoot w/o schematics.
Can you still get the "ribbins" for those anymore?
You may already have this but just in case, and I don't know if it will help, but maybe...
https://vintageapple.org/apple_ii/pdf/Apple_IIc_Scribe_Users_Manual_Guide_to_Apple_IIc_1984.pdf
I'm not sure what flashing 3 times means, but maybe it says in there.
Thanks for that! I did have a read of that before posting, and on page 93 it says:
Which is the observed behavior on my printer, even with a ribbon loaded and blocking the sensor.