HP Q7493A User Manual - Page 261
Solving problems with Mac OS X, Troubleshooting common Macintosh problems
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Table 8-26 Problems with Mac OS 9.x (continued) When connected with a USB cable, the printer does not appear in the Desktop Printer Utility or the Apple System Profiler after the driver is selected. Cause Solution This problem is caused by either a software or hardware component. Software troubleshooting ● Check that your Macintosh supports USB. ● Verify that your Macintosh operating system is Mac OS 9.1 or 9.2. ● Ensure that your Macintosh has the appropriate USB software from Apple. NOTE The iMac and Blue G3 desktop Macintosh systems meet all of the requirements to connect to a USB device. Hardware troubleshooting ● Check that the printer is turned on. ● Verify that the USB cable is connected correctly. ● Check that you are using the appropriate high-speed USB cable. ● Ensure that you do not have too many USB devices drawing power from the chain. Disconnect all of the devices from the chain and connect the cable directly to the USB port on the host computer. ● Check to see if more than two nonpowered USB hubs are connected in a row on the chain. Disconnect all of the devices from the chain and connect the cable directly to the USB port on the host computer. NOTE The iMac keyboard is a nonpowered USB hub. Solving problems with Mac OS X Table 8-27 Problems with Mac OS X The printer driver is not listed in the Print Center or Printer Setup Utility. Cause Solution The printer software might not have been installed or was installed incorrectly. The Postscript Printer Description (PPD) file is corrupt. Make sure that the printer PPD is in the following hard-drive folder: Library/Printers/PPDs/Contents/Resources/ .lproj, where is the two-letter language code for the language that you are using. If necessary, reinstall the software. See the getting started guide for instructions. Delete the PPD file from the following hard-drive folder: Library/ Printers/PPDs/Contents/Resources/.lproj, where is the two-letter language code for the language that you are using. Reinstall the software. See the getting started guide for instructions. ENWW Troubleshooting common Macintosh problems 245