Memory
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.
Menu Administration/Memory/K Mem Frame Buffer
Choices
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.
Media | Minimum Frame Buffer Size (in KB) | |||
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| 300dpi | 300dpi | 600dpi | 600dpi |
| simplex | duplex | simplex | duplex |
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Letter/A4 | 2200* | 2200* | 3980 | 7960 |
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Legal | 2200* | 2504 | 4968 | 9936 |
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11”x17” | 2200* | 3952 | 7852 | 15704 |
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Universal | 2200 | 4400 | 8752 | 17504 |
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A5 | 2200* | 2200* | 2200* | 3912 |
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A3 | 2200* | 4104 | 8164 | 16328 |
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B5 (JIS) | 2200* | 2200* | 2984 | 5968 |
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B4 (JIS) | 2200* | 3056 | 6072 | 12144 |
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B5 (ISO) | 2200* | 2200* | 2984 | 5968 |
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B4 (ISO) | 2200* | 3056 | 6072 | 12144 |
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QMS 4060 Print System Reference |