Ricoh IS430 user manual ¡ Auto photo/letter

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Image Scanner User's Manual

￿¡ Auto photo/letter

Function: This mode detects photo (halftone) areas and letter (binary) areas of the original so that the binary areas are scanned in the binary mode, and the halftone areas are scanned in the halftone mode.

Note: This function is available only when the optional image processing unit is installed in

the scanner.

If binary areas and halftone areas are not separated clearly, segmentation may not

be achieved .

Usage: Scanning of an original that includes binary images such as letters, and halftone

images such as photographs.

Original

Scanned in binary composition

Scanned in half- tone composition

Scanned image

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97.5.8, 5:37 PM

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Contents IS430 G406-8610 Remarque concernant les utilisateurs au Canada Important informationPage Precautions Area Rating Plug Cable Connector Contents Functions Options97.5.8, 535 PM Part names ¡ Front view¡ Rear view Part names¡ Checking the parts InstallationParts list Name Qty¡ Location Operating environment¡ Connecting the Scsi cable ¡ Setting the Scsi ID ¡ Connecting the power cord¡ Turning the power on ¡ Initializing the scannerIndicators Scanner Document feeder Meaning Green AmberPlacing originals ¡ Placing an original on the contact glass Original condition¡ Placing originals on the document table Nals, otherwise the inner mylar might Be damaged Cleaning Soft clothCleaning Corrective action Troubleshooting¡ Lamp cover open ¡ Lamp error ¡ Document feeder cover open¡ Paper jam If you cant see the document, see steps 4 to¡ Document table error ¡ Paper misfeed¡ Others ¡ System errorProblem Cause Corrective action Refer Specifications Appendix Functions¡ Prescan ¡ Scan¡ Scanning composition Dynamic threshold ¡ Binary scanning / ThresholdManual threshold ¡ Halftone scanning ¡ Multi-value scanning ¡ Area extraction ¡ Section area Multi area settings Case of scanning without this function¡ Auto photo/letter ¡ Resolution ¡ Brightness ¡ Contrast¡ Gamma correction ¡ Binary filter ¡ Parameter download ¡ Semi-automatic document feed Sadf modeBook mode Document feeder mode ¡ Document size detectionOptions ¡ Red lamp unit¡ Image processing unit ¡ Data compression unit¡ Video interface unit Auto photo/letter