HP QMS 1660 manual 82

Memory

the larger the default swap file size will be. The printer uses this file as an extension of its memory. As the physical RAM fills, the printer can swap the contents to the hard disk file to allow more space. This file swapping between disk and RAM occurs at various times throughout the printing process and is completely transparent.

»Note: The printer must have a hard disk to take advantage of this feature.

Menu	Administration/Memory/Enable Disk Swap
Choices	No—Don’t enable disk swapping.
	Yes—Enable disk swapping.
Default	No
Notes	If disk swapping is enabled and the system hard disk is
	removed or not turned on, the printer automatically resets to
	the factory defaults. It is then necessary to re-enable disk
	swapping if you want this functionality.
	Before you install printer options, such as fonts and macros,
	ensure that the printer has enough memory, or they may not all
	be available for use. If it doesn’t, you can install SIMMs (see
	chapter 6, “Printer Options”) to increase printer memory, or you
	can install a hard disk (see chapter 6, “Printer Options”) and
	enable disk swapping.
	The printer must be restarted for changes to the Enable Disk
	Swap menu to take effect. You can either let the printer restart
	automatically after you save the change and exit from the
	configuration menu, or you can wait for the change to take
	effect the next time you manually turn on the printer.
	If you enable disk swapping and restart the printer, the disk
	cache size automatically increases to 256 KB.

Frame Buffer

The Frame Buffer memory client holds rasterized or bitmapped images of page faces which are ready to be sent to the print engine. A frame holds the contents of each single page image.

If you are uncertain about how to configure your printer’s memory, use only the Administration/Memory/Frame Buffer menu. Or use this

4-50 QMS 1660 Print System Reference