Ricoh G410, G411 manual Resolution

Page 63

6. Appendices

Resolution

This function permits setting separate resolutions for the main-scanning and the sub-scanning, over a range of 100dpi to 800dpi (in 1dpi increments) for each. A high resolution setting requires more free space in memory and requires more processing time.

Basically, when outputting a scanned image that is the same size as the original image, set the same resolution as that of the output device. Image quality will suffer if the resolution is less than that of the output device, and it is meaningless to set a resolution that is higher than the resolution that the output device is capable of. However, if the output image is to be enlarged or reduced compared to the original, change the resolution by the same ratio.

Limitation

❒When this function is used during duplex scanning, the maximum image data size for the reverse side is 360 million bytes.

Note

❒When using this function, the image on the reverse side might be scanned through the document, depending on the condition of the original.

Original

52 Low resolution

High resolution

Image 63

Contents Image Scanner Safety Information Safety During OperationExamples of Indications Safety Information Iii Important Information Important InformationImportant Information Reference How to Read This ManualHow to Read This Manual LimitationTable of Contents Setting Originals OriginalsGeneral Scanning Method Manual Scanning Options MaintenanceSpecifications DIP Switches FunctionsPage Introduction FeaturesIntroduction Space-saving designGuide to the Scanner DIP Switches Power ConnectorRotary Switch Scsi ConnectorDescription Understanding the IndicatorsIntroduction Preparing for Installation Setup locationChecking the Scanner Location Installation environment Important Setting up the Scanner Installation spaceUsable range Recommended range Scsi Connection Require Ments for the Scanner Connecting to the Host ComputerWhat is SCSI? Setting up the ScannerSetting the Scsi ID Connecting the Scsi Cable No Connection to Other PortConnecting to the Host Computer 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 On/Off the Scanner Power Turning On the Scanner PowerTurning Off the Scanner Power Initializing the Scanner Originals Recommended Sizes and Weights of OriginalsDifficult to Detect Sizes Original Sizes and Scanning Area Originals Original sizes that can be detected automaticallyContact glass Auto Document Feeder ADF Setting the Original on the Contact Glass Setting OriginalsAlign the originals on the ADF Setting the Original in the Auto Document Feeder ADFSimplex scanning Duplex scanning Guides Setting Originals General Scanning Method Scanning OriginalsScanning Originals Manual ScanningItem to check Action When Scanning Does not StartError Indicators and Solutions TroubleshootingDescription of error Action When an Original is Jammed in the Auto Document Feeder ADF Procedures to Correct Errors in the ADFReplacing the Ink Ribbon Do not pull on the Endorser’s cord Cleaning the Endorser Cleaning the Scanner MaintenanceAppendices Cleaning the Feed Roller and DrumMaintenance Cleaning the White Roller Duplex Model Only Maintenance Moving the Scanner Carrying the Scanner a Short Distance Disposing of the ScannerOptions Image Processing Unit Type aRed Lamp Unit Type a Endorser Unit Type a Printing Function Scanner Electrical and Hardware Specifications SpecificationsDIP Switches Preview FunctionsHalftone scanning ScanScanning Composition Binary scanningStandard mode Dynamic threshold modeBinary Scanning/Threshold Halftone Scanning Gray Scale Scanning Area Extraction Section Area Multi-area Settings Auto Photo/Letter Resolution Contrast BrightnessGamma Correction Smoothing Binary FiltersParameter Download Noise removalDocument Size Detection Document Size Detection on the Contact GlassDocument Size Detection in the Auto Document Feeder ADF When Erase Background is disabled When Erase Background is enabledErase Background Index DIP Switch 10, 27Red Lamp Unit Appendices