HP 4550 Service Manual - Page 70
LocalTalk I/O, CPU, Fast InfraRed Receiver (optional), System requirements, Microsoft Windows 9x - laptop
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Note LocalTalk I/O The LocalTalk interface enables you to print directly from a stand-alone Apple Macintosh computer or from a Macintosh computer on a LocalTalk network. For specific information about configuring your computer and printer to print through a LocalTalk interface, refer to the printer's getting started guide and the HP JetDirect Print Server Software Installation Guide. CPU The HP Color LaserJet 4500 formatter PCB incorporates a 133-MHz RISC processor. The HP Color LaserJet 4550 formatter PCB incorporates a 200-MHz RISC processor. Fast InfraRed Receiver (optional) The HP Fast InfraRed Receiver enables cableless printing from any IrDA-compliant portable device (such as a laptop computer) to the HP Color LaserJet 4550 printer (when the optional FIR accessory is installed). The printing connection is maintained by positioning the sending FIR port within operating range. Note that the connection can be blocked by objects such as a hand, paper, direct sunlight, or any bright light shining into either the sending or receiving FIR port. System requirements In order to print with the HP Fast InfraRed Receiver, you will need: the receiver connected to this printer IrDA-compliant portable or other IR-capable host supporting IRLPT or JetSend Communications Technology over IR Microsoft Windows 9x, Windows NT 4.0, Windows 2000 or Mac 8.5 with a LaserWriter 8.6 or higher driver Older non-IrDA-compliant portable computers might not be compatible with the HP Fast InfraRed Receiver. If you experience problems when attempting to print with the HP Fast InfraRed Receiver, contact the manufacturer of or dealer for your portable computer to verify compatibility with the IrDA standard. For more information, see the HP Fast InfraRed Receiver User Guide that came with the HP Fast InfraRed Receiver. 68 Installation and configuration C7085-90921
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