Auto Photo/Letter | Ricoh IS450 manual

Functions

Auto Photo/Letter

This function automatically determines whether the image being scanned is text (binary image) or photo (intermediate tone image), and scans the text areas in binary scanning mode and the photos in halftone scanning mode. This function is used in order to automatically scan text in binary scanning mode and photos in halftone scanning mode. This function allows you to scan an original that contains both text and photos just once while automatically scanning each type of area in the appropriate scanning mode without having to make special settings for each.

Limitation

❒During double-sided scanning, this function is valid only for the front side of the original.

Note

❒This function is valid only when the optional Image Processing Unit Type A is installed.

Original

Scanned in binary scanning mode

Scanned in halftone scanning mode

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Image 65

Ricoh IS450 operating instructions Auto Photo/Letter

Contents

Image Scanner Introduction Copyright Declaration of Conformity Examples of Indications Safety InformationSafety During Operation Safety Information Iii Important Information Important Information Important Information How to Read This Manual How to Read This ManualLimitation Reference Table of Contents General Scanning Method Manual Scanning Setting OriginalsOriginals Specifications MaintenanceDIP Switches Functions OptionsPage Introduction Features Introduction Space-saving design Guide to the Scanner Rotary Switch Power ConnectorScsi Connector DIP Switches Description Understanding the Indicators Introduction Checking the Scanner Location Preparing for InstallationSetup location Installation environment Important Setting up the Scanner Installation space Usable range Recommended range What is SCSI? Connecting to the Host ComputerSetting up the Scanner Scsi Connection Require Ments for the Scanner Connecting to the Host Computer Setting the Scsi IDConnecting the Scsi Cable No Connection to Other Port Connecting the Scsi Cable Connection to Other Port Connecting the Power Cable Plug the other end of the power cable into the power outlet Turning Off the Scanner Power Turning On/Off the Scanner PowerTurning On the Scanner Power Initializing the Scanner Originals Recommended Sizes and Weights of Originals Difficult to Detect Sizes Contact glass Auto Document Feeder ADF Original Sizes and Scanning AreaOriginals Original sizes that can be detected automatically Setting the Original on the Contact Glass Setting Originals Align the originals on the ADF Setting the Original in the Auto Document Feeder ADF Simplex scanning Duplex scanning Guides Make sure the Auto Document Feeder ADF is closed Setting Originals General Scanning Method Scanning Originals Scanning Originals Manual Scanning Item to check Action When Scanning Does not Start Description of error Action Error Indicators and SolutionsTroubleshooting When an Original is Jammed in the Auto Document Feeder ADF Procedures to Correct Errors in the ADF Replacing the Ink Ribbon Do not pull on the Endorser’s cord Cleaning the Endorser Cleaning the Scanner Maintenance Appendices Cleaning the Feed Roller and Drum Maintenance Cleaning the White Roller Duplex Model Only Maintenance Moving the Scanner Carrying the Scanner a Short Distance Disposing of the Scanner Red Lamp Unit Type a OptionsImage Processing Unit Type a Endorser Unit Type a Printing Function Scanner Electrical and Hardware Specifications Specifications DIP Switches Preview Functions Scanning Composition ScanBinary scanning Halftone scanning Binary Scanning/Threshold Standard modeDynamic threshold mode Halftone Scanning Gray Scale Scanning Area Extraction Section Area Multi-area Settings Auto Photo/Letter Resolution Contrast Brightness Gamma Correction Parameter Download Binary FiltersNoise removal Smoothing Document Size Detection in the Auto Document Feeder ADF Document Size DetectionDocument Size Detection on the Contact Glass Erase Background When Erase Background is disabledWhen Erase Background is enabled Index DIP Switch 10, 27 Red Lamp Unit Appendices