Formatter assemblies 3 2 4 1 5 6 7 7 Figure 5. Formatter assemblies 1 Formatter board 2 DIMM slots 3 Printer hard disk location (factory-installed on HP Color LaserJet 8500 N, 8500 DN, 8550 N, 8550 DN, 8550 GN, and 8550 MFP models) 4 EIO slot 2 (shown with HP JetDirect internal print server) 5 Parallel IEEE-1284 interface port (C-size) 6 EIO slot 1 7 C-link connector Note Either EIO slot can have a hard disk installed if there is not a factory- installed internal hard drive mounted on the formatter board. However, the printer does not support two hard disks; the printer can support one hard disk at a time—either internal or external. EN Printer Information 43