Fujitsu fi-4750L manual Double Letter Size

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Double feed detection

A scanner function which detects the accidental feeding of multiple sheets by the ADF unit. Can be turned on or off by the operator.

Double Letter Size

A standard paper size used in the U.S.A. and othe countries. Paper size is 11 x 17 inches.

dpi

Dots per inch.

Dropout color

A color which is used in the document but does not appear in the read image.

Duplex reading mode

A reading mode in which both sides of the document are read.

Equipment Error

An error that cannot be corrected by the operator. Call CE.

Error diffusion

High-quality halftone (pseudo-grayscale) image production based on black-and-white pixel binarization. A pixel’s optical density and that of adjacent pixels are summed, with black pixels relocated in their order of density as they relate to adjacent pixels.

The purpose of this technique is to minimize the average error between read and printed densities. Density data for adjacent pixels is modified by diffusing errors on the objective pixel into several pixels, which are then binarized. This maintains high grayscale levels and resolution during reading, while suppressing more patterns by dotted halftone images such as newspaper photographs.

FB

In this manual, FB means flat bed.

Filtering

A correction method that improves the read quality of handwritten documents. The read quality of images written in pencil or ball-pointed pen depends on the reflective light characteristics of the specific ink or lead used. Dropped pixels may produce outlines, gaps, or thin, barely connected lines due to uneven optical density. Filtering detects areas lighter than their surroundings and increases their density to improve image clarity.

Front-side reading = Front-side scanning

Refers to reading the front side of the document, specifically in Duplex reading mode.

Halftone processing

Any method used to reproduce a photograph which includes a shade as an image composed of dots, namely, a binary image. Dithering and error diffusion processing are examples of halftone processing.

GL-2

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Contents Fi-4750L Image Scanner Fi-4750L Image Scanner Revisions, Disclaimers Page Fujitsu Offices Fujitsu France S.APage Preface Conventions Contents Viii Terms Index Components Checking the Components Units and Assemblies Operator PanelChecking the Components Fi-4750L Units and AssembliesUnits Function Assemblies Operator Panel ArrangementButton/LED Function Name of the button FunctionCounter Display Counter FunctionOperation status Temporary error Alarm Page Page Installation and Connections Precautions Inspection Repositioning the Shipping Lock Cable Connections Turning the power switch OffConnecting the power cable Connecting the interface cables Connecting the chute cableMounting the Stacker Setting the Scsi ID and the Scsi Terminator Page Operating Instruction Turning the Power On Waking up the Scanner from the Low Power Mode Manual Feed Mode Setting Loading Documents on the ADF ADFABD Documents Guide Guide lever Both sides Max 20 mm 0.8 or 10 mm 0.4 See Notices Scanner parts involved when loading documents Loading Documents on the FlatbedReading a Page from a Thick Book Page ADF Document Specification Fi-4750L A3/Double Letter A8 Portrait Document SizeScanner Maximum Minimum Document Quality Paper weightPrecautions Document typeMore than 30 mm Less than Feed direction Top of the paper ADF Document Feeder Capacity Country Unit ConversionAreas not to be Perforated Areas that must not be perforatedGrounding Color Areas Grounding color areaDouble Feed Detection Condition Job Separation Sheet Job separation sheetScanner Specifications Basic Product Specification Specification RemarksInstallation Specification SpecificationDimensions Page Consumables and Options Consumables Options Video Interface Option IPC-4D OptionName Specification Remarks ConsumablesOptions Name RemarksHow to Install the Video Interface Option Board Video Interface OptionPage Without IPC With IPC-4D Description Option Parameter DescriptionParameter Description IPC-4D Option Page Setup Mode Activating the Setup Mode Contents of the Setup ModeActivating the Setup Mode Contents of the Setup Mode Scsi ID Setting double feed detection Paper Thickness Setting double feed detection Paper Length Setting IPC pre-set mode Reset of the abrasion counter Setting the pick start timeSetting the time-out limit Page IPC Status Display Scsi ID SettingScsi Terminator Setting Low Power Mode Setting Select Interface Image Processing Display the TPS Board ID NumberSelect Built-In/IPC-4D Image Processing M4097DAdjust ADF Erasing Edges Adjust FB Erasing Edges Page Glossary of Terms Double Letter Size IPC-4D Paper JAM TPS GL-6 Index Pick start time Declarations of Conformity DE-2