HP 2840 HP Color LaserJet 2820/2830/2840 All-In-One - Software Technical Refer - Page 380
Troubleshooting, Port communication, Overview, USB port connections, Device conflicts in Windows - color laserjet scanner windows 7
UPC - 829160742731
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Engineering details Troubleshooting The following topics are described in this section: ● Port communication ● File to E-mail utility ● Standalone scrubber ● Two-pass cleaning-page utility ● Collect.bat utility ● E-mail ● My Scans directory Port communication This section provides information on the following topics: ● Overview ● USB port connections ● Device conflicts in Windows Overview The HP Color LaserJet 2820/2830/2840 all-in-one products include both a 10/100Base-T network Jetdirect port and a USB port. The HP Color LaserJet 2820/2830/2840 can be connected with either the 10/100Base-T network Jetdirect or the USB port. The HP Color LaserJet 2820/2830/2840 does not support connection over a parallel port. NOTE Do not connect both the 10/100Base-T network Jetdirect port and the USB port at the same time. Do not connect two computers directly to the same HP LaserJet all-in-one product. USB port connections Hi-speed USB is an input/output mode that both PC and Macintosh computers support. A wide variety of consumer devices, such as digital cameras and scanners, also support USB. Hi-speed USB is the current standard. HP LaserJet all-in-one products are compatible with Hi-speed USB specifications. A USB host is distinct from a USB device. The HP LaserJet all-in-one products are USB devices. They can connect only to a USB host or a USB hub. Device conflicts in Windows When two-way communication cannot be established with the HP LaserJet all-in-one product, the Windows Device Manager might show a conflict. Conflicts should be resolved immediately, before 356 Chapter 8 Engineering details ENWW