QMS 2060 Reference page 134

Memory clients in the 2060 are automatically allocated when the
printer is installed or when you upgrade the printer's memory. There
are other occasions when the printer's memory is automatically real-
located:
When new system software is installed.
When adding or removing hard disks, duplexer, or Multi-Res
daughterboard.
When Quick Config is selected in the menu.
When Disk Swap is enabled or disabled.
When Frame Buffer is manually adjusted.
When restoring printer defaults.
Remember that if you perform any of these functions the memory
clients will be set to default values. The default values depend on the
amount of physical memory installed in your printer and if you have a
hard drive, duplexer, and/or a Multi-Res daughterboard. The default
allocation adjusts the Frame Buffer memory client first. It is set to the
minimum values of physical memory needed for your print jobs, that
is, paper size, resolution, and duplex printing. The other memory cli-
ents are allocated memory from what is left over in physical memory.
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. For example, a
600 dpi page printed on letter size paper would consume frame buffer
memory space as follows: (600dpi x 600dpi x 8.5 in x 11 in) /8 =
4,207,500 bytes or 4.1 MB.