conon Laser Beam Printer LBP8

I am almost sure I mentioned it on this list in the last year. I would guess serrchingthe archives for 'PERQ' would find it. I am not sure what you want to know. I can talk you through taking the CX engine apart, and what the 'DC contorller board' -- the print engine cotnroller with a 7811 microcontroller and a gate array that controls the laser intensity does. And how the various PSUs, laser scanner, etc work. When I was doing this conversion, you seem I had the printer totally apart. And I mean 'totally' I completely stripped down the optical parts and had a pile of mirrors and cylindrical lenses at one point (yes, I did get it all aligned again) As regards the actual conversion, the important bit is trivial. A CX-VDO has a DC37-S interface connector. It's a straight-through ribbon cable board. The last 2 pins on that connector go to an earth tag on the connector bracket. I didn't bother with (and never found out the ocnnections of) the mini-DIN connectoer for some kind of exeternal paper feed. The PERQ never supported that, I don't have one, etc. There's a 6 pin header on the DC controller board that's unused in the LBP8. It carres the status LED signals (ready, paper out, etc). I dismantled the original control panel from the LBP8 (and added a 7 segment display, switches, etc to the junk box), and used 5 of its LEDs and the associated resistors on the origianl PCB. I made a new trim panel for it (not the right layout for an CX-VDO, since I used the old PCB and plastic housing from the LBP8, but that doesn't matter) and soldred a length of ribbon cable to the PCB which ends in a sockt to fit said header. Let me know what you're trying to do and I can probably help. -tony