[rescue] Tektronix printer

[Mark Price]

Does anyone here know a lot about these beasts?

I rescued a Tektronix Phaser 550.  It looks like a nice sturdy color 
laser but is giving me some problems.  When I send a print job, it will 
warm up, then start making clunking noises (sounds like knocking on 
wood) then sometimes it will "Jam at A".  When it jams, the paper has 
come half way out of the tray and started going through the rollers, but 
there is no jam or wrinkled paper..

any ideas or printer troubleshooting links would be appreciated.. I've 
been googling

Mark