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HP 3020 manual Scanner resolution and color, Resolution and color guidelines

Models: 3020

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Scanner resolution and color

Note

Note

If you are printing a scanned image, and the quality is not what you expected, you might have selected a resolution or color setting in the scanner software that does not match your needs. Resolution and color affect the following features of scanned images:

●Image clarity

●Texture of gradations (smooth or rough)

●Scan time

●File size

Resolution is measured in dots per inch (dpi). Color, grayscale, and black and white define the number of colors possible. You can adjust the scanner hardware resolution to up to 600 dpi. The software can perform an enhanced resolution up to 9,600 dpi. You can set color and grayscale at 1 bit (black and white), or at 8 bit (256 levels of gray) to 24 bit (true color).

The resolution and color guidelines table lists simple tips that you can follow to meet your scanning needs.

Setting the resolution and color to a high value can create large files that take up disk space and slow the scanning process. Before setting the resolution and color, determine how you are going to use the scanned image.

The best resolution for color and grayscale images is achieved by scanning from the flatbed scanner rather than from the automatic document feeder (ADF).

Resolution and color guidelines

The following table describes the recommended resolution and color settings for different types of scan jobs.

Intended use	Recommended resolution	Recommended color settings
Fax (HP LaserJet 3030 all-in-	150 dpi	●	Black and White
one only)
E-mail	150 dpi	● Black and White, if the
			image does not require
			smooth gradation
		● Grayscale, if the image
			requires smooth gradation
		● Color, if the image is in color
Edit text	300 dpi	●	Black and White
Print (graphics or text)	600 dpi for complex graphics, or	● Black and White for text and
	if you want to significantly		line art
	enlarge the document	● Grayscale for shaded or
		● Grayscale for shaded or
	300 dpi for normal graphics and		colored graphics and
	text		photos
	150 dpi for photos	● Color, if the image is in color

ENWW	Scanner resolution and color 77

Image 87

HP 3020 manual Scanner resolution and color, Resolution and color guidelines

Contents

Use Page User Guide Copyright Information Table of contents Copying Faxing Cleaning and maintenance 101 Vii Appendix a SpecificationsViii Appendix D HP parts and accessoriesGetting to know your device Package contents of the hp LaserJet 3020 all-in-one Package contents of the hp LaserJet 3030 all-in-one Speed Identifying the hardware components HP LaserJet 3020 all-in-one hardware componentsHP LaserJet 3030 all-in-one hardware components Enww Enww Supported operating systems Identifying the software componentsPrint-media specifications Supported paper weights and sizesMedia input tray paper sizes Automatic document feeder ADF paper sizes Priority input slot paper sizesSetting or feature HP toolbox Device control Panel Using the hp toolbox Windows Supported browsersTo view the hp toolbox Fax tab Hp toolbox sectionsOther links Status tabTroubleshooting tab Scan to... tabDocumentation tab Printing a device control panel menu map Using the device control panelPrinting a configuration Restoring the factory-set defaultsChanging the default media size Using the device volume controlsChanging the device control panel display language To change the device control panel key-press volume To change the alarm volumeEnww Printing To print by using manual feed Printing by using manual feedStopping or canceling a print job Printer drivers Changing print settingsTo change default settings across all programs Windows To change default settings across all programs MacintoshTo change settings for a print job Macintosh To change settings for a print job Windows600 dpi 300 dpi Understanding print-quality settingsTo temporarily change print-quality settings To change print-quality settings for all future jobsTo use EconoMode to save toner Optimizing print quality for media types To gain access to the optimizing featureDevice media specifications Labels Guidelines for using mediaCommon media problems table PaperTransparencies EnvelopesEnvelope construction Envelope storage Card stock and heavy mediaEnvelopes with double-side seams Envelopes with adhesive strips or flapsCard stock guidelines Selecting media for the automatic document feeder ADF Automatic document feeder ADF specificationsTo print on one envelope Printing on envelopesTo print on multiple envelopes Enww To print on transparencies or labels Printing on transparencies and labelsMedia type from the Type is drop-down list To print on letterhead and preprinted forms Printing on letterhead and preprinted formsTo print on custom-sized media or card stock Printing on custom-sized media or card stockPrinting on both sides of the media manual duplexing To manually duplexOn the Finishing tab, select Print on Both Sides Printing on both sides of the media manual duplexing Printing multiple pages on a single sheet of media To print multiple pages on a single sheet WindowsTo print multiple pages on a single sheet Macintosh Printing booklets To print bookletsPrint on Both Sides Enww Printing watermarks To use the watermark featureEnww Copying To load originals onto the flatbed scanner Loading originals to copyLoading originals to copy Starting a copy job Canceling a copy jobAdjusting the copy quality To adjust the copy quality for the current jobTo adjust the default copy quality Adjusting the lighter/darker contrast setting To adjust the lighter/darker setting for the current jobTo adjust the default lighter/darker setting Reducing or enlarging copies To reduce or enlarge copies for the current job To change the default copy sizeEnww Changing the copy-collation setting To change the copy-collation setting for the current jobTo change the default copy-collation setting To change the default number of copies Changing the number of copiesTo change the number of copies for the current job Copying photos, two-sided originals, or books To copy a photoTo copy a multiple-page stack of two-sided originals To copy a book Enww Scanning Loading originals onto the flatbed scanner Loading originals to scanLoading originals to scan Understanding scanning methods Scanning to a folder Scanning from the device control panel WindowsProgramming the device Scan to button Scanning to e-mailProgramming the device Scan to button Canceling a scan job Click Settings Scanning by using hp LaserJet Scan software WindowsScanning to another software program Scanning to a fileScanning to the Readiris OCR software Scanning from the device and hp Director Macintosh Scanning to a software program Using page-by-page scanningTo scan from a TWAIN-enabled program Using TWAIN-compliant and WIA-compliant softwareScanning from a TWAIN-enabled program Scanning from a WIA-enabled program Windows XP onlyScanning a photo or a book Scanning a photoScanning a book Scanning a photo or a book Readiris Scanning by using OCRResolution and color guidelines Scanner resolution and colorColor Setting Recommended useFaxing Faxing Cleaning and maintenance Cleaning the outside of the device To clean the exteriorTo clean the glass To clean the lid backing To clean the media path Cleaning the media pathEnww Enww See Service and support Enww Troubleshooting Device does not turn on Is power reaching the device?Was the device exposed to an electric or magnetic field? Does the document contain blank pages? Does the configuration page print?Pages print but are totally blank Is the sealing tape still in the print cartridge?Are media jams present? Pages did not printDoes a message appear on your computer screen? Is media being pulled into the device correctly?Is the printed page different from what appears onscreen? Pages printed, but a problem existsAre the device settings appropriate for the print media? Is the print quality poor?Onscreen error messages appear Printer not responding/error writing to LPT1Cannot access port in use by another application More than one sheet feeds at one time Paper-handling problems existMedia curls when fed through device Print is skewed crookedPrinted page is different from what appears onscreen Is the text garbled, incorrect, or incomplete?Are graphics or text missing? Are there blank pages? Is the quality of graphics poor? To clear a media jam Media jams occur in the printerEnww Tips to avoid media jams To clear other media jamsPrint quality is unacceptable Light print or fadeToner specks Dropouts Vertical linesToner smear Gray backgroundVertical repetitive defects Loose tonerSkew Misformed charactersWrinkles or creases Curl or waveToner scatter outline Door open or no print cartridge Device control panel error messages appearResolving common error messages Critical error messagesAlert messages Enww Is media loaded in the input tray? No copy came outIs the original of poor quality? Copies are blank, or images are missing or fadedHas the sealing tape been removed from the print cartridge? Is the print cartridge low on toner?Copy quality is unacceptable Preventing problemsMedia jams occur in the automatic document feeder ADF Typical automatic document feeder ADF jam locationsTo clear a media jam from the automatic document feeder ADF Enww Enww Wrong original was copied Copy defects are apparentVertical white or faded stripes Blank pagesReduced size Unwanted linesBlack dots or streaks Unclear textIs the image skewed crooked? Is the image quality better when the document is printed?Scanned image is of poor quality Is the original a second-generation photo or picture?Part of the image did not scan Is your computer set for bidirectional communication? Is your resolution or color level set too high?Scan takes too long Is your software set to scan in color?Common scanning error messages Error messages appearScan quality is unacceptable Scan quality is unacceptable Enww Electrical specifications1 SpecificationsPhysical specifications Environmental specificationsAcoustic emissions1 HP LaserJet 3020/3030 all-in-one series specifications HP LaserJet 3020/3030 all-in-one series specificationsAutomatic document feeder ADF input tray specifications HP LaserJet 3030 all-in-one fax specifications HP LaserJet 3020/3030 all-in-one series battery 133 Regulatory InformationFCC regulations FCC regulations IC CS-03 requirements hp LaserJet 3030 all-in-one only 137 Safety statements Laser safety statementCanada DOC regulations Korean EMI statement Laser statement for FinlandAustralia Product Options Declaration of ConformityEnvironmental product stewardship program HP LaserJet printing supplies Returns Non-U.S. returns PaperMaterial restrictions Nederlands For more informationVoorschriften Material safety data sheets Enww HP Product Duration of Limited Warranty HP limited warranty statementAppendix C HP limited warranty statement 149 HP parts and accessoriesPrinting supplies Ordering hp parts and accessoriesHP parts and accessories charts AccessoriesSupplementary documentation Replacement partsStoring print cartridges To install a print cartridgeHP LaserJet print cartridges HP policy on non-hp print cartridgesRecycling print cartridges Saving tonerReturns Enww 155 Service and supportRepackaging guidelines Obtaining hardware serviceTo obtain hardware service Returning the unitTo remove the media input tray Extended warranty What needs to be done? Service information formEnww 1284-B GlossaryECP Twain Enww Index Symbols/NumericsEnergy Star Jams Enww ADF Twain Page Q2665-90902