Chapter 8

Scan takes too long

•Check the settings

◦If you set the resolution too high, the scan job takes longer and results in larger files. To obtain good results when scanning or copying, do not use a resolution that is higher than needed. You can lower the resolution to scan more quickly.

◦If you acquire an image through TWAIN, you can change the settings so that the original scans in black and white. See the onscreen Help for the TWAIN program for information.

•Check the status of the device

If you sent a print or copy job before you tried to scan, the scan starts if the scanner is not busy. However, the printing and scanning processes share memory, which means that the scan might be slower.

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 originals.

◦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 photo and imaging software, the default settings in the HP photo and imaging 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 photo and imaging software for instructions about changing the properties.

Text cannot be edited

•Check the settings

◦Make sure that the OCR software is set to edit text.

◦When you scan the original, make sure that you select a document type that creates editable 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 originals.

◦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."

130 Maintain and troubleshoot

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HP J4550, J4680, J4660 Scan takes too long, Part of the document did not scan or text is missing, Text cannot be edited
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J4540, J4580, J4680, J4660, J4550 specifications

The HP J4580 and J4500 series printers are versatile all-in-one devices that cater to both home and small office environments. Designed to deliver high-quality printing, scanning, copying, and faxing capabilities, these models combine functionality with ease of use.

The HP J4580 model stands out with its compact design, making it an ideal choice for users with limited space. One of its main features is the ability to print in color and black-and-white at speeds up to 28 pages per minute (ppm). Additionally, the J4580 boasts a maximum print resolution of 4800 x 1200 optimized dpi, ensuring that both text and images look sharp and vibrant.

The J4500 model, while similar in design, introduces enhanced features suitable for slightly larger workloads. It offers a slightly higher performance, handling printing tasks with even greater efficiency. The J4500 can also print at impressive speeds, providing users with fast output without sacrificing quality.

Both models come equipped with advanced scanner technology, featuring a flatbed scanner that allows for high-resolution scanning to digital formats. The J4580 and J4500 are capable of scanning documents up to 1200 dpi, making it easy to capture intricate details from photos and pages. Moreover, users can copy documents quickly with a one-touch button that simplifies the copying process.

One of the standout characteristics is the built-in fax functionality. The fax modem included in both models can transmit documents at speeds of up to 33.6 kbps, ensuring that important information is sent swiftly. Additionally, they feature a 50-sheet automatic document feeder (ADF) for quicker faxing and scanning of multi-page documents.

Connectivity options are also essential for modern office needs, and both the J4580 and J4500 support USB and Ethernet connections, allowing users to print and share documents seamlessly over a network. Furthermore, wireless connectivity options enable quick access from mobile devices.

Overall, the HP J4580 and J4500 series printers provide comprehensive solutions for daily printing, scanning, copying, and faxing tasks. With their combination of speed, quality, and multifunction capabilities, these all-in-one printers are reliable assets for enhancing productivity in any workspace.
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