Color Simulation; Simulation Modes Supported; Color Simulation Processes And Algorithms - Ricoh MP 6002 User Manual

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1. IPDS Overview

Color Simulation

This printer provides "limited color simulation" by either simulating with generated grayscales or

substituting "black" in special cases.

• Data objects whose colors are simulated with "grayscale":

• PTOCA (characters, underscores, overscores, text rules)

• GOCA (characters, lines, arcs, image, solid-area fill, pattern fill)

• IM1/IOCA (bi-level image)

• Object Areas (Pages, Overlays, BCOCA and IOCA)

• Data objects whose colors are simulated with "black":

• GOCA Markers

• BCOCA Bar Code Symbols and HRI

• Full Color Image is not supported on this printer since the transformation to grayscale would be

very costly from a performance perspective. Host utilities are available to convert full color images

to bi-level images for printing on monochrome printers.

• Grayscale Image (8 bits/pixel) is supported on this printer, however for very large images

unacceptable performance degradation may result, due to the dithering process to produce bi-

level image.

There are two color simulation modes that may be supported:

• Legacy Mode (Substituting "black" or Pattern Creation)

• Fidelity Mode (Simulation with Grayscale)

The machine supports both the Legacy Mode and the Fidelity Mode of color simulation.

The Legacy Mode is provided to support customer legacy applications where simulation with grayscale

would produce unacceptable results. There are console configuration menus to allow customers to select

what level of color simulation best meets their needs. There are also console configuration menus to

allow customers to select whether or not Color PTOCA (text) Objects should be simulated with grayscale

or rendered with black. Rendering all PTOCA objects with black may be desirable, especially when

small fonts are utilized.

To allow printing of documents containing color specifications, the specified colors in the document

should be simulated in a consistent and predictable manner.

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