Background Erase - Ricoh B082 Service Manual

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6.5.9 BACKGROUND ERASE

SP4903 65 ~ 69 cut the background from around images scanned from an original

of rough texture such as a newspaper or parchment. The larger the setting done for

this SP, the more background drops out from behind the image or text.

This SP mode setting for image processing executes separately from the ADS

(Auto Image Density) function that is performed in the SBU to set the peak white

level for scanning to eliminate background.

For example, if this SP is set for "20", then

the scanning data up to 20 is set to "0"

and cut from the image. The range for this

SP code adjustment is 0 ~ 255. The

recommended range for a normal

document is 0 ~ 60. An official document

on rough texture paper would fall in the

recommended range of 120 ~ 160. The

correct setting for any original will vary

with the texture and quality of the

background, but remember that selecting

a higher numbers for this setting will

eventually lower the quality of the

document or cause unexpected results.

Generation Copy

NOTE: The "0" setting switches off the background erase filter.

Background Erase Filter

IMAGE PROCESSING

B079D907.WMF

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