HP 8550dn HP Color LaserJet 8550, 8550N, 8550DN, 8550GN, 8550MFP Printer - Use - Page 57

Managing Memory The printer supports an optional printer hard disk as well as ROM (read-only memory) and synchronous DRAM (dynamic random-access memory) DIMMs (dual inline memory modules). DRAM DIMMs must be installed in synchronized pairs (two DIMMs) with the same amount of memory installed in slots such as 1 and 2 (see task 5 on page 209). For more information on DIMMs, see appendix A, "DIMM Installation." The printer comes with a minimum of 32 MB of RAM and can be expanded with additional DIMMs. The printer has four available DIMM slots for additional 8, 16, 32, or 64 MB DIMMs. An optional printer hard disk is available for storing downloaded fonts and forms in the printer. Unlike standard printer memory, information stored on the printer hard disk is permanently downloaded and can remain in the printer even when the printer is turned off. A printer hard disk also enables proof and hold and mopying features (which can significantly decrease the processing time for multiple copies, or large or complex jobs). For information on ordering a printer hard disk, see "Accessories, Options, and Related Products" in chapter 8. Note A printer hard disk is required to mopy or proof and hold. 56 2 Using the Printer Control Panel EN