Fci (Fine Character Image) - Ricoh A230 Service Manual

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IMAGE PROCESSING

2.2.6 FCI (FINE CHARACTER IMAGE)

The FCI chip on the LDDR performs image smoothing only in binary picture

processed image with Letter mode.

Usually, binary picture processing generates jagged edges on characters as shown

in the above left illustration. The FCI reduces jagged edges of characters using the

image smoothing process.

Whether or not the object pixel undergoes smoothing depends on the surrounding

image data. The smoothing process for the object pixel is done by changing the

laser pulse positioning and the laser power.

A230/A231/A232