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HP Designjet 650C Series Printers - Model A and B Firmware Compatibility with PostScript (R) Firmware

Designjet 650C firmware and PostScript(R) firmware compatibility
When upgrading the HP Designjet 650C Model A printer to the Model B firmware, the PostScript firmware must also be upgraded to fully utilize the features and capabilities of the new firmware.
  • Firmware v 4.1 will not function with PostScript firmware version 2.0 or greater.
  • Firmware v 5.0 will work with either PostScript firmware v 1.1 or 2.0, but will not offer the same functionality, such as the new halftoning options, dithering algorithm, reduced banding, etc.
  • PostScript firmware v 2.0 requires firmware v 5.0.
  • PostScript firmware v 1.1 will function with either firmware v 4.1 or 5.0.
Compatibility matrix
Model A version 4.1
Model B version 5.0
PS v 1.1
YES
YES
PS v 2.0
NO
YES
 note:
Using a different version of the PostScript firmware with a version of the printer's firmware for which it was not intended may limit or change the capability and features of the printer, and vice versa.

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