I have a couple of Laserwriters that I am working on and troubleshooting led me to the issue of a triac at q101 on the AC Powerblock (just under the fan).

Anyway - I have no idea how to uncover what to get for a replacement, here are the specs that I know:

1) Its a Mits with the following markings  

BCR8DM

12L  87

2) my multimeter reports it as a PNP, CEB (no other value)

3) Here is a marginal picture of it, without the heatsink



Any suggestions for a replacement, or how to go about finding one of these - I have tried the obvious searches, but the closest I got were some partial matches on the numbers, no solid replacement.