Standard
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4 MB
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Maximum
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36 MB
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The memory capacity of the HP Designjet 400 series printer is 36 MB. Four (4) MB of memory are built-in RAM on the main board. The remainder is available through one SIMM (single inline memory module) slot that can take either a 4 MB, 8 MB, 16 MB, or 32 MB SIMM card. The second SIMM socket is intended for code upgrades.
The HP Designjet 400 series printer is shipped with 4 MB of RAM on the main board as standard. Available memory is reduced by approximately 2 MB of "overhead" requirements; for example, stack space, the I/O buffer, and variable storage. A rough estimate of the ratio of user-to-DJ400 file storage is 0.8:1. File expansion in the HP Designjet 400 series printer buffer depends largely on file content. Labels, polygons, line widths greater than 1 mm, and raster data are examples of memory-eaters.
When receiving a print, the HP Designjet 400 series printer stores all the vector data and raster data in the memory buffer. If the buffer is full, remaining vector data is read in and discarded. If sending all raster data, the buffer is filled, then printed; plotting continues in this way until the print is complete.