HP 4600hdn 4600n manual Managing memory, Memory, see Working with memory and print server cards

Managing memory

	This printer supports up to 512 MB of memory. You can add additional
	memory by installing Dual Inline Memory Modules (DIMMs). To allow
	for memory expansion, the printer has five DIMM slots, which accept
	64, 128, or 256 MB of RAM each. For information about installing
	memory, see Working with memory and print server cards.
	The printer features Memory Enhancement Technology (MEt), which
	automatically compresses page data to provide the most efficient use
	of the printer’s RAM.
	The printer uses 168-pin, nonparity, synchronous DRAM memory
	modules. Extended data output (EDO) DIMMs are not supported.
Note	If memory problems occur when you are printing complex graphics, you
	can make more memory available by removing downloaded fonts, style
	sheets, and macros from printer memory. Reducing the complexity of
	a print job from within an application can help avoid memory problems.

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