HP LaserJet M9040/M9050 HP LaserJet M9040/M9050 MFP - User Guide - Page 252
Table 12-1, When connected with a USB cable
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Table 12-1 Problems with Mac OS X (continued) When connected with a USB cable, the printer does not appear in the Print Center or Printer Setup Utility after the driver is selected. Cause Solution 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. 238 Chapter 12 Problem solve ENWW
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