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Chapter 7 Part of the document did not scan or text is missing • Check the original ◦ Make sure that you loaded the original correctly. For more information, see Load an original on the scanner glass. ◦ If you are copying a borderless original, load the original on the scanner glass, not the ADF. For more information, see Load an original on the scanner glass. ◦ Colored backgrounds can cause images in the foreground to blend into the background. Try adjusting the settings before you scan the original, or try enhancing the image after you scan the original. • Check the settings ◦ Make sure that the input media size is large enough for the original that you are scanning. ◦ If you are using the HP software, the default settings in the HP software might be set to automatically perform a specific task other than the one that you are attempting. See the onscreen Help for the HP software for instructions about changing the properties. ◦ If you have selected a picture scanning option, the HP software automatically crops the image. However, if you want to scan the entire page, complete the following steps: Windows: From the HP Solution Center software, click Scan Picture, click Advanced Picture Settings, and then select Scan the entire glass. Mac OS X: From the HP Scan software, click Scan, select the Picturesscan profile, click Profile Settings, and then clear the Cropcheck box. Text cannot be edited • Check the settings ◦ Make sure the HP software (or any additional OCR software) is properly installed. ◦ When you scan the original, make sure that you select a document type or save the scan in a format that creates editable, searchable text. If text is classified as a graphic, it is not converted to text. ◦ Your OCR program might be linked to a word-processing program that does not perform OCR tasks. See the product software Help for more information about linking programs. • Check the originals ◦ Make sure that you placed the original correctly on the scanner glass. For more information, see Load an original on the scanner glass. ◦ The OCR program might not recognize text that is tightly spaced. For example, if the text that the OCR program converts has missing or combined characters, "rn" might appear as "m." ◦ The accuracy of the OCR program depends on the image quality, text size, and structure of the original and the quality of the scan itself. Make sure that your original has good image quality. ◦ Colored backgrounds can cause images in the foreground to blend too much. Try adjusting the settings before you scan the original, or try enhancing the image after you scan the original. If you are performing an OCR operation on an original, any colored text on the original does not scan well, if at all. 98 Solve a problem
Error messages appear "Unable to activate TWAIN source" or "An error occurred while acquiring the image" ◦ If you are acquiring an image from another device, such as a digital camera or another scanner, make sure that the other device is TWAIN-compliant. Devices that are not TWAIN-compliant do not work with the device software. ◦ Make sure that you have connected the USB cable to the correct port on the back of your computer. ◦ Verify that the correct TWAIN source is selected. In the software, check the TWAIN source by selecting Select Scanner on the File menu. Scanned image quality is poor The original is a second-generation photo or picture Reprinted photographs, such as those in newspapers or magazines, are printed by using tiny dots of ink that make an interpretation of the original photograph, which degrades the quality. Often, the ink dots form unwanted patterns that can be detected when the image is scanned or printed or when the image appears on a screen. If the following suggestions do not solve the problem, you might need to use a better-quality version of the original. ◦ To eliminate the patterns, try reducing the size of the image after scanning. ◦ Print the scanned image to see if the quality is better. ◦ Make sure that the resolution and color settings are correct for the type of scan job. Text or images on the back of a two-sided original appear in the scan Two-sided originals can "bleed" text or images from the back side to the scan if the originals are printed on media that is too thin or too transparent. The scanned image is skewed (crooked) The original might have been placed incorrectly. Be sure to use the media guides when you place the original on the scanner glass. For more information, see Load an original on the scanner glass. The image quality is better when printed The image that appears on the screen is not always an accurate representation of the quality of the scan. ◦ Try adjusting your computer monitor settings to use more colors (or levels of gray). On Windows computers, you typically make this adjustment by opening Display on the Windows control panel. ◦ Try adjusting the resolution and color settings. The scanned image shows blots, lines, vertical white stripes, or other defects ◦ If the scanner glass is dirty, the image produced does not have optimum clarity. See Maintain the device for cleaning instructions. ◦ The defects might be on the original and not a result of the scanning process. Graphics look different from the original The graphics settings might not be suitable for the type of scan job that you are performing. Try changing the graphics settings. Solve scan problems 99
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User Guide OFFICEJET 4500 A909 G510
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Copyright information © 2009 Copyr
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Print photos.......................
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4 Poor print quality and unexpected
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Regulatory information.............
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Use the HP Solution Center (Windows
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Chapter 1 Eco-Tips HP is committed
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Chapter 1 (continued) 4 1-LINE (fax
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Chapter 1 To change settings for a
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Chapter 1 (continued) HP Printing P
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Chapter 1 ◦ Media that is too lig
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Chapter 1 20 Get started To load me
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Chapter 1 Clean the exterior WARNIN
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Chapter 1 4. Lift the automatic doc
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Chapter 2 Print documents (Mac OS X
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Chapter 2 6. In the Basic Options a
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Chapter 2 5. Click Photo Printing -
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Chapter 2 7. Select the paper type:
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Chapter 2 6. Choose Paper Type/Qual
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Chapter 3 3. Press right arrow to s
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Chapter 4 38 Copy • Lighter/Darke
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Chapter 5 TIP: You can also send a
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Chapter 5 Send a fax from memory Yo
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Chapter 5 phone lines. On poor phon
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Chapter 5 NOTE: If Backup fax is en
Page 52 and 53: Chapter 5 NOTE: If an incorrect pap
Page 54 and 55: Chapter 5 Receive faxes to your com
Page 56 and 57: Chapter 5 • Set the fax error cor
Page 58 and 59: Chapter 5 Set the dial type you are
Page 60 and 61: Chapter 5 Use reports NOTE: If you
Page 62 and 63: Chapter 5 Clear the fax log • Num
Page 64 and 65: 6 Work with ink cartridges To ensur
Page 66 and 67: Chapter 6 Handle the ink cartridges
Page 68 and 69: Chapter 6 If you are replacing the
Page 70 and 71: Chapter 6 10. Load the ink cartridg
Page 72 and 73: Chapter 6 To align the ink cartridg
Page 74 and 75: 7 Solve a problem HP support The in
Page 76 and 77: Chapter 7 • Messages that appear
Page 78 and 79: Chapter 7 After the phone support p
Page 80 and 81: Chapter 7 Check the device software
Page 82 and 83: Chapter 7 electromagnetic fields. A
Page 84 and 85: Chapter 7 Step 1: Check the print q
Page 86 and 87: Chapter 7 Print Quality Diagnostic
Page 88 and 89: Chapter 7 84 Solve a problem To pre
Page 90 and 91: Chapter 7 86 Solve a problem The li
Page 92 and 93: Chapter 7 88 Solve a problem Exampl
Page 94 and 95: Chapter 7 Solution 9: Replace the p
Page 96 and 97: Chapter 7 To clean the area around
Page 98 and 99: Chapter 7 • When using thin speci
Page 100 and 101: Chapter 7 • Black dots or streaks
Page 104 and 105: Chapter 7 Take steps to improve the
Page 106 and 107: Chapter 7 • Make sure you use the
Page 108 and 109: Chapter 7 port labeled 1-LINE on th
Page 110 and 111: Chapter 7 • Other equipment, whic
Page 112 and 113: Chapter 7 • Make sure the device
Page 114 and 115: Chapter 7 110 Solve a problem • I
Page 116 and 117: Chapter 7 TIP: If the device came w
Page 118 and 119: Chapter 7 Solve wireless problems (
Page 120 and 121: Chapter 7 Mac OS X ▲ Click the Ai
Page 122 and 123: Chapter 7 3. Do one of the followin
Page 124 and 125: Chapter 7 Another common problem is
Page 126 and 127: Chapter 7 Check the device IP addre
Page 128 and 129: Chapter 7 • If the computer canno
Page 130 and 131: Chapter 7 Understand the network co
Page 132 and 133: Chapter 7 2. Gently pull the paper
Page 134 and 135: A Technical information This sectio
Page 136 and 137: Appendix A Ink cartridge warranty i
Page 138 and 139: Appendix A Processor: 192 MHz ARM9
Page 140 and 141: Appendix A (continued) Media size M
Page 142 and 143: Appendix A (continued) Tray Type We
Page 144 and 145: Appendix A (continued) Paper type D
Page 146 and 147: Appendix A Regulatory information T
Page 148 and 149: Appendix A Notice to users in Japan
Page 150 and 151: Appendix A Notice to users of the C
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Appendix A Exposure to radio freque
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Appendix A Declaration of conformit
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Appendix A Environmental product st
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Appendix A Power consumption Hewlet
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Appendix A HP Officejet 4500 Deskto
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Appendix A ZLIB zlib.h -- interface
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Appendix A Expat Copyright (c) 1998
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Appendix A THIS SOFTWARE IS PROVIDE
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Appendix A HP Officejet 4500 Wirele
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Appendix A OpenSSL Copyright (C) 19
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Appendix B • The HP software on y
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Appendix C Countries/regions with a
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Appendix C (continued) Other equipm
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Appendix C 3. Connect an additional
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Appendix C 1 Telephone wall jack 2
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Appendix C Set up the device with a
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Appendix C 4. Connect the DSL modem
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Appendix C Shared voice/fax with co
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Appendix C (continued) 3 Answering
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Appendix C 1. Remove the white plug
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Appendix C To set up the device wit
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Appendix C 4. Using the phone cord
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D Network setup (some models only)
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Appendix D Set up the device for wi
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Appendix D NOTE: If you cannot find
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Appendix D Guidelines for ensuring
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Appendix D 4. Restart your computer
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Appendix E NOTE: On a Macintosh com
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F Errors (Windows) This list repres
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Appendix F 3. Wait until the print
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Appendix F Before you try to clear
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Index Symbols/Numerics (ADF) automa
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test setup 197 troubleshoot 100 voi
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edial options, setting 54 reduce fa
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two-sided 34 uninstall software 205
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