Lightness, Saturation, Red, green, and blue | HP 815MFP specification

lightness

This same setting can also be accessed directly from the Copy tab dialog. The default Lightness value is set to zero which works well with most documents. You can change this value to make the copy lighter (positive value) or darker (negative value) and compensate for dull or faded originals.

saturation

Saturation indicates the intensity of a hue, or in other words the strength of a color. A high saturation makes a color’s hue more intense than the same color with a low saturation value. A positive value increases saturation and a negative value decreases saturation.

red, green, and blue

You can adjust your copy’s color balance during image capture through separate controls for each of the three color-channels Red, Green, and Blue. Adding and subtracting an amount of a color affects the whole color balance. Often it’s best to keep the three channels on the same levels. Experiment with the different effects through previewing.

Select negative values to reduce the total content of the color and select positive values to increase the total content of the color.

black enhance and background clean

The black enhance option is used to change dark graytone colors to true black.

For example, if you are copying a brochure with a mixture of text and pictures, the text will often be digitized to a color that we may see as black but really is a dark graytone. When the printer digests this graytone data, it will print the original’s text with a halftone pattern, meaning scattered dots instead of solid black.

By increasing the black enhance value, you can get the text to be copied in real black and it will therefore appear clearer.

Use the black enhance option with caution, because it can change other dark colors (not only grays) into black, making small dark spots appear in the picture.

Background clean is used if you have an original with a background that is not completely white. If you want your background to appear as pure white then you can increase the

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HP 815MFP manual Lightness, Saturation, Red, green, and blue, Black enhance and background clean

Contents

User’s Reference Guide Legal notices Trademarks Contents Problem is what is printed Problem is with the scannerProblem is a software system error Tell me about my scanner Tell me about hp designjet support Tell me about copy and layout features and optionsTell me about media Hp designjet 815mfp & scanner How do I…? Problem is…Welcome to the hp designjet 815mfp/scanner Tell me about… Quick copying How do I make copies?To make copies… How do I set the printer media width? How do I set the input size? How do I select an original template?See also Hp designjet 815mfp & scanner How do I set the output size? How do I copy thick media? To copy thick media… How do I change the insertion slot height? How do I select a media profile? To change the insertion slot height… How do I set the output quality? How do I scale copies? To scale copies… How do I scan to a file? TipPage How do I use copy options and tools? How do I use the previewing tools? To move the image To position the paper frame How do I set the number of copies? To align the image How do I collate copies-create copy sets? Collate copy-copy sets How do I use nesting? How do I set up a print list? How do I use paneling? Setting up the print list How do I print from files? To print from files How do I maintain the print list? Page Maintenance procedures How do I maintain/recover my system?Cleaning the scan area Page Page Camera alignment and calibration Page How do I recover the system? How do I upgrade the scanner firmware?To recover your scanner system… How do I calibrate my touch screen? How do I shut down my system? How do I customize my copy tools? How do I define an original template? How do I create a custom scale size? How do I create a new media profile? To create a new media profile…Page To check your TCP/IP settings… How do I set up the system?How do I configure TCP/IP settings? How do I connect to a network?Page How do I create a workgroup? To create a workgroup… How do I set the scanner system power up/down timer? How do I automatically log in in network configuration?To log in automatically… To set the scanner system power up/down timer… How do I define scanner setup options?To access the scanner setup options… Paper load Media offset Extended thickness settings How do I create/delete/disable an account?To create a new account… To disable an account… To delete an account… How do I select/activate an existing account? To activate/select an existing account… Loading preferences How do I set preferences?Units of measurement Scan and user interface options To set up your printer… How do I set up my printer in my scanner system software?How do I change the scanner system interface language? Page Problem is the diagnostics light is flashing Problem is with the scannerProblem is the wait light is flashing Problem is the wait and diagnostics lights are flashing Problem is no scanner was found Problem is a software system errorProblem is an error message and error code Message Code Recommendation Press the button Touch screen stops responding Problem is a printing error messageProblem is a system failure If your system does not work If you have problems pressing buttons on your screen Problem is with the interface languageProblem is with the touch screen If the user interface is not in the correct language Problem is a cropped image Problem is what is printedProblem is white space with nesting Tell me about my scanner Power button and indicator lightDiagnostics light Tell me about my scanner operator panel and lights Wait light Paper control areaPaper forward and paper reverse keys About Tell me about scanner maintenancePaper ready light Why? When? Tell me about the scanner insertion slot Tell me about scanner operating modes Rgb modeGraytone mode Modes 2d-sharpening, 2d-softening, and 2d-blur Usage Tell me about my scanner software Main features of the scanner software are…Tell me about the hp designjet scanner software Image viewing section consists of… Tell me about the scanner software user interfaceImage control section provides the following tabs… Entering numbers and names Scan speed Tell me about the scan optionsPreview dpi Rewind paper Auto-size method Tell me about the user interface optionsLoad Limit auto-detect scan length Paper lists show Color balanceUse quick select lists Enable reprint Print settingsUse account password Active account Tell me about accountingPaper series Total account Accounting criteria Accounting log files Tell me about WIDEsystem Page Overview Tell me about copy and layout features and optionsTell me about the copy size Size options-relationships Using size presets Input size/output size settingsTell me about original templates Templates for black and white copying Tell me about original template settingsTemplates for color copying Method Saturation Black enhance and background cleanLightness Red, green, and blue Sharpen/blur Setting the output margins Tell me about copy quality settingsScanning and printing quality settings Tell me about output margins Tell me about unprintable areas ‘account for unprintable area’ option Extended thickness paper handling Tell me about scanner setup optionsExamples Correction factor in scanning Delay factorPaper loading Manual/automatic Tell me about paneling and tiling options Options Assembling the panels Cut line Glue mark arrows Tell me about nesting Tell me about previewing and the paper frame Previewing Paper frame Hp designjet 815mfp & scanner Tell me about lists Creating and printing lists Tell me about hp customer care Tell me about hp designjet supportWhat to do before you call Page Communication from HP to users includes Finally… Media thickness positions Tell me about mediaTell me about copying thick media Modifying stitching parameters Supporting thick originals Tell me about paper sizes Series Area Series Name Size Area Aspect Inches In² Mm² Ratio Tell me about calibrating RIP settings Ink level Gray balance Tell me about advanced gray balance Advanced gray balance 100 Hp designjet 815mfp & scanner Index Page