HP QMS 4060 - Manual (Page 156)

Memory
QMS 4060 Print System Reference 5-14
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. 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.
Because the frame buffer memory is so critical to the actual printing
of a page, its allocation takes precedence over that of other memory
clients. The number of frames needed to print at engine speed is
engine specific and depends on the size media and resolution. For
example, printing at 600x600 dpi requires four times the amount of
memory in the frame buffer than does 300x300 dpi.
Minimum Frame Buffer Size
The following table lists the minimum number of KB that must be
devoted to the frame buffer for all media size and resolution combina-
tions.
Menu Administration/Memory/K Mem Frame Buffer
Choices 02200-variable depending on options installed
Media Minimum Frame Buffer Size (in KB)
300dpi
simplex
300dpi
duplex
600dpi
simplex
600dpi
duplex
Letter/A4 2200* 2200* 3980 7960
Legal 2200* 2504 4968 9936
11”x17” 2200* 3952 7852 15704
Universal 2200 4400 8752 17504
A5 2200* 2200* 2200* 3912
A3 2200* 4104 8164 16328
B5 (JIS) 2200* 2200* 2984 5968
B4 (JIS) 2200* 3056 6072 12144
B5 (ISO) 2200* 2200* 2984 5968
B4 (ISO) 2200* 3056 6072 12144