Part numbers:
Xerox Phaser 8500, 8550, 8560 (256MB) - 237E23640, 607K06320
Xerox Phaser 8500, 8550, 8560, 8860DN (512MB) - 097S03382, 237E23650, 607K06330, 626S00057

Replacement recommendation:
If your Xerox 8500, 8550, 8560, 8560MFP, 8860, or 8860MFP is displaying a RAM error, the most likely cause is a faulty RAM stick.

Compatible models:
Phaser 8500
Phaser 8550
Phaser 8560
Phaser 8860