hp color LaserJet 4550 4550n 4550dn 4550hdn
printed on recycled paper
copyright 2000 Hewlett-Packard Company printed in Germany

getting started guide

www.hp.com/support/lj4550

english

*C7085-90901* *C7085-90901*

C7085-90901

6.5" x 9" BACK COVER
6.5" x 9" FRONT COVER
HP Color LaserJet 4550, 4550N, 4550DN, 4550HDN Printer
Getting Started Guide ________
Copyright Hewlett-Packard Company, 2002 All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. Publication number C7085-90948 First Edition, January, 2002

Warranty

The information contained in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with respect to this information. HEWLETT-PACKARD SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Hewlett-Packard shall not be liable for any direct, indirect, incidental, consequential, or other damage alleged in connection with the furnishing or use of this information.

Trademark Credits

Adobe, Acrobat, and PostScript are trademarks of Adobe Systems Incorporated. MS-DOS is a U.S. registered trademark of Microsoft Corporation. UNIX is a registered trademark of the Open Group. Windows, MS Windows, and Windows NT are U.S. registered trademarks of Microsoft Corporation.
Hewlett-Packard Company 11311 Chinden Boulevard Boise, Idaho 83714 U.S.A.

Introduction

Congratulations on your purchase of the HP Color LaserJet 4550 printer.

Configurations

This printer is available in four configurations, as described below. An optional printer cabinet is also available.

HP Color LaserJet 4550

The HP Color LaserJet 4550 is the base model. It comes standard with 64 MB RAM.

HP Color LaserJet 4550N

The HP Color LaserJet 4550N comes standard with 64 MB RAM and an HP JetDirect 610N print server EIO network card for connecting to a network.

HP Color LaserJet 4550DN

The HP Color LaserJet 4550DN comes standard with 128 MB RAM, an HP JetDirect 610N print server EIO network card for connecting to a network, a duplex printing accessory, and a 500-sheet paper feeder.
HP Color LaserJet 4550HDN
The HP Color LaserJet 4550HDN comes standard with 128 MB RAM, an HP JetDirect 610N print server EIO network card for connecting to a network, a duplex printing accessory, a 500-sheet paper feeder, and a hard disk.

Printer cabinet

An HP Color LaserJet 4550 series printer cabinet is available for purchase (product number C4235A).
To order printer accessory products, go to the HP website at U.S. http://www.hp.com/go/supplies or Worldwide http://www.hp.com/ghp/buyonline.html.

Introduction 3

Installation checklist
This guide will help you set up and configure your new color printer. Each task below includes easy-to-follow instructions.

Task 1 Prepare a location for the printer. 8 Task 2 Unpack the printer. 10 Task 3 Install the power cord. 17 Task 4 Load media into the trays. 19 Task 5 Set up the printer control panel (optional)*. 26 Task 6 Install the toner cartridges. 30 Task 7 Install the imaging drum. 33 Task 8 Set PowerSave and test printer operation. 34 Task 9 Connect the printer to the network (optional)*. 36 Task 10 Lock the printer control panel (optional)*. 37 Task 11 Connect a parallel cable (optional)*. 39 Task 12 Printing with the HP Fast InfraRed Receiver (optional)*.42 Task 13 Prepare to install the software. 43 Task 14 Software installation for individual users with IBM-compatible computers.44 Task 15 Software installation for network administrators. 46 Task 16 Software installation for Macintosh users. 49 Task 17 Configure the printer on the network. 51 Task 18 Distribute the software to network clients (optional)*. 52 Task 19 Install the software for network clients (optional)*.53 Task 20 Connect to the printer. 55

Task 3 17

Insert the short optional duplex printing accessory power cord on the back of the optional duplex printing accessory into the power receptacle on the back side of the printer. Connect the power cord to a grounded power outlet.

18 Task 3

Task 4
Load media into the trays
Front view The printer has the following trays: 3 Tray 1 (multipurpose tray) with extending paper support Tray 2 (250-sheet tray) Optional Tray 3 (500-sheet tray)

Task 4 19

Using media types
The printer control panel can be configured so that the printer draws certain media types from specific trays. This enables you, in the printer driver, to select media by type rather than by tray (source). Selecting media by type helps prevent accidental printing on special or expensive media. For example, if a tray is configured for letterhead, and you specify in the driver to print on plain paper, the printer will not accidentally print on letterhead from the letterhead tray. For more information on using the printer control panel to set the size and type of media for the input trays, see the online user guide. CAUTION Hewlett-Packard recommends using HP Color LaserJet Transparencies (C2934A for letter-size and C2936A for A4-size) for optimum printing results. Do not use DeskJet (inkjet) or monochrome transparencies in your printer. The transparencies can become overheated and melt, causing serious damage to your printer. For more information on buying various types of media to use with this printer go to U.S. http://www.hp.com/go/ljsupplies or Worldwide http://www.hp.com/ghp/buyonline.html.

20 Task 4

Loading media

To load Tray 1

1 Pull up the tray extension and slide the media-width guides all the way open. Load media with the print side (side to be printed on) facing the printer. Load up to 150 sheets of 75 g/m2 (20 lb) stock. Slide the media in until it sits squarely in the bottom of the tray. Slide the media-width guides in until they hold the media firmly in place without bending it. To load letterhead into Tray 1, load the letterhead with the print side facing the printer and with the top of the letterhead sitting in the bottom of the tray. For duplex (two-sided) printing, load letterhead with the print side facing away from the printer (not shown). Note For information on loading envelopes, transparencies, or other media types, see the online user guide that comes with the printer.

Task 4 21

To load Tray 2
1 Remove Tray 2 from the printer and place it on a flat surface. Remove the packing tape from the tray. Slide out the orange packing spacers from both sides of Tray 2 ( [1] ). Then press the bottom plate and remove the middle packing spacer ( [2] ). Set the rear media-length guide by squeezing the guide adjustment latch and sliding the back of the tray to the length of the media you are loading. Slide the media-width guides all the way open. Load media into Tray 2 with the print side facing down. Load up to 250 sheets of 75 g/m2 (20-lb) stock. Media capacity may vary with other media types.

Note If the cartridge does not slide easily into the slot, ensure you have the right color cartridge for that slot. Rotate the toner cartridge toward the back of the printer (within the cartridge slot) until the cartridge clicks into place. Lower the flap to partially cover the toner cartridge ( [1] ). If the cartridge was rotated correctly, the flap covers the cartridge label. Close the top cover ( [2] ) before installing the next toner cartridge.

Task 6 31

10 When the top cover is shut, the carousel advances to the next toner cartridge slot. When the printer is ready, the control panel displays:
TONER POSITION (COLOR) = MISSING
11 Install the other three toner cartridges by repeating steps 3 through 10. Install them in the following order: 1. magenta 2. cyan 3. yellow Note You must close the top cover before installing the next toner cartridge.
12 After installing the fourth toner cartridge, close the top cover. CAUTION If you need to ship the printer in the future, remove the toner cartridges and imaging drum before shipping. Leave the printer turned on and continue to the next task.

32 Task 6

Task 7

Install the imaging drum

1 Locate the imaging drum package that came with the printer. Remove the imaging drum from the bag.
CAUTION Avoid exposing the imaging drum to direct light. Exposure to light for more than 15 seconds can seriously damage the imaging drum. 3 On the printer, pull open the front upper drawer until it stops. Align the imaging drum over the open drawer so that the arrow on top points to the rear of the printer, and the blue end cap on the side slides into the slot identified with the blue arrow. Slide the imaging drum down into place. Push the front upper drawer shut. Wait while the printer runs an internal color calibration. The calibration takes a few minutes. When the printer is ready, the control panel displays READY.
CAUTION If you need to ship the printer in the future, remove the toner cartridges and imaging drum before shipping.

Task 7 33

Task 8
Set PowerSave and test printer operation
PowerSave reduces power consumption when the printer is not in use. The factory default setting for PowerSave is on, and the time setting is 30 minutes. The instructions below explain how to change the time setting and how to turn PowerSave off.

Setting PowerSave

1 Press MENU on the control panel until CONFIGURATION MENU appears on the control panel display. Press ITEM until POWERSAVE TIME= 30 MIN * appears. Press VALUE + or VALUE to display other time-setting choices between 30 minutes and 4 hours. Press SELECT to save your choice. An asterisk ( * ) appears beside your saved choice.

READY.

Press GO. The control panel displays

34 Task 8

Testing printer operation
Print a configuration page to ensure that the printer is working properly. 1 Press MENU on the control panel until INFORMATION MENU appears on the control panel display. Press ITEM until PRINT CONFIGURATION appears. Press SELECT to print a configuration page. After about 30 seconds, the configuration page prints. If it does not print, see Troubleshooting checklist on page 56.
Leave the printer turned on and continue to the next task.

Task 8 35

Task 9
Connect the printer to the network (optional)
The HP Color LaserJet 4550N, 4550DN, and 4550HDN printers come with the HP JetDirect 610N print server, which supports RJ-45 (unshielded twisted pair) for 10/100Base-TX networks.
Connecting to a 10/100Base-TX network
Plug the connector of your unshielded twisted-pair cable into the RJ-45 port. The other end of the cable should be attached to the network. RJ-45 (10/100Base-TX) connection

36 Task 9

Task 10 Lock the printer control panel (optional)
You can prevent users from changing printer control panel settings by establishing a password and locking the printer control panel. The control panel offers multiple levels of security. You can lock certain control panel menus, allowing users to change the rest of the menus, or you can lock all of the menusand you can even lock the CANCEL JOB key. When the printer control panel is locked, unauthorized users who try to change settings at the control panel receive the following message:
ACCESS DENIED MENUS LOCKED

Levels of security

Lock Setting
0 = None 1 = Minimum 2 = Moderate
Control panel items locked
No items are locked Configuration Menu I/O Menu Configuration Menu I/O Menu Calibration Menu Configuration Menu I/O Menu Calibration Menu Resets Menu Calibration Menu Resets Menu Resets Menu Paper Handling Menu Paper Handling Menu Information Menu Printing Menu CANCEL JOB key

3 = Maximum

Use HP Web JetAdmin software, HP LaserJet Utility for Macintosh, or an ASCII escape sequence to perform this procedure. HP software is easier to use than an ASCII escape sequence. For instructions on locking the control panel by using either HP Web JetAdmin software or the HP LaserJet Utility for Macintosh, access the online Help for that software. WWW HP recommends that network administrators use HP Web JetAdmin to manage HP printers on a network. HP Web JetAdmin is available from the web at http://www.hp.com/support/net_printing.

Task 10 37

Using an ASCII PJL escape sequence
If you decide to use the ASCII escape sequence, you must use an MS-DOS or Windows ASCII editor to create the commands. The commands must also be sent to the printer by using a DOS COPY command or an ASCII file downloader utility. Note In the following examples, EC represents the escape character. For more information on using escape characters, see the PJL Technical Reference Manual. For a copy of this manual, contact your HP-authorized dealer.
To lock or unlock the printer control panel if a password has not been set, send the following ASCII sequence to the printer: EC%-12345X@PJL JOB @PJL DEFAULT CPLOCK=NONE (or MINIMUM, MODERATE, or MAXIMUM) @PJL EOJ EC%-12345X
To set the password, send the following ASCII sequence to the printer: EC%-12345X@PJL JOB @PJL DEFAULT PASSWORD=[numeric password (0 to 65535)] @PJL EOJ EC%-12345X
To lock or unlock the control panel if the password has been set, send the following ASCII sequence to the printer: EC%-12345X@PJL JOB PASSWORD=(numeric password) @PJL DEFAULT CPLOCK=NONE (or MINIMUM, MODERATE, or MAXIMUM) @PJL EOJ EC%-12345X

38 Task 10

Task 11 Connect a parallel cable (optional)
You can connect the printer to the computer using a bidirectional parallel cable (IEEE-1284 compliant) with a C-size connector to the printer and a B-size connector to the computer. HP recommends that the parallel cable length is no longer than 10 meters (30 ft) in length. The cable (HP part number C2946A) is included with the HP Color LaserJet 4550 printer. It must be purchased separately for the HP Color LaserJet 4550N, 4550DN, and 4550HDN printer. To order the parallel cable directly from HP in the U.S., call (800) 227-8164. See the online user guide for other in-country/region HP direct ordering phone numbers. WWW To order online, go to http://www.hp.com/ghp/buyonline.html.

Task 11 39

Connecting a parallel cable
1 Press the printer standby button (power switch) to turn the printer to standby mode, and turn off the computer to which you are connecting the parallel cable. Plug the parallel cable into the printers parallel port until it snaps into place. Plug the other end of the parallel cable into the computer. Tighten down the screws on the parallel cable to secure the cable to the computer. Turn the computer on and then turn the printer on.
Note Your computer will sense the printer if your computer is Plug and Play compatible. Follow the directions on your screen. To install the complete software package, cancel Plug and Play and continue to the next task. 4 Continue to the next page for instructions on verifying communication between the computer and the printer.

40 Task 11

To verify communication when using a parallel cable
1 At the computer, go to a DOS prompt (root directory) and type DIR>LPT1 and press ENTER.
If you are using a UNIX operating system, use the equivalent commands. At the printer, if the data light on the control panel stays on for more than a minute, press GO. Otherwise, continue to step 3. If a directory list prints, printer setup is complete. Now you can install the software to work with the new HP Color LaserJet 4550 printer. OR If an error message appears in the printer control panel display, see the Troubleshooting checklist on page 56 for more information. OR If the printer neither prints the directory list nor displays an error message on the control panel, check to see that all the power cables are plugged in and that all the cables connecting the printer to the computer are securely fastened. Remove any print sharing device or port security device which may be connected between the computer and printer.

Task 11 41

Task 12 Printing with the HP 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 Fast InfraRed Receiver (FIR) accessory is installed). The printing connection is maintained by positioning the sending infrared (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 may 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 or dealer of your portable computer to verify compatibility with the IrDA standard. For more information, see the user guide that came with the HP Fast InfraRed Receiver.

42 Task 12

Task 13 Prepare to install the software
Before the printer can be used, the software (printer drivers and optional printing utilities) must be installed on each computer printing to the printer. The software is on the CD-ROM that is included in the box with the printer. This section provides overviews and installation procedures for the following types of printer users:
individual user with an IBM-compatible computer directly connected to the printer by a parallel cable network administrator who is installing the printer on a network for network clients users with Macintosh-compatible computers connected to the printer by a LocalTalk or EtherNet cable (for EtherNet)

CD-ROM software contents

The CD-ROM includes software designed for users who are operating in the following environments:

G G G G G G

Windows 3.x Windows 9x Windows NT 4.0 Windows 2000 Macintosh System 7.5.3 or later Novell NetWare 3.x, 4.x, 5.x
For the latest drivers or for additional drivers, go to http://www.hp.com/ support/lj4550. Once connected, select Downloads and Drivers to find the driver you wish to download.

Task 13 43

Task 14 Software installation for individual users with IBM-compatible computers

Overview

Use this procedure if you use an IBM-compatible computer and it is the only one connected to the printer, and the computer is connected to the printer by a parallel cable (IEEE-1284 compliant) with a C-size connector.
The procedure consists of the following general steps (detailed instructions follow):
Install the software on the computer that is connected to the printer. If your printer has the optional 500-sheet paper feeder or optional duplex printing accessory, configure the printer driver to show that these options are installed (see the printer driver online Help for instructions).

44 Task 14

Detailed instructions
These installation instructions are for systems running Windows 9x, Windows NT 4.0, or Windows 2000. The setup software detects both the version of Windows that you are running and the language that is selected in your operating system. The setup software then installs printer drivers and software that are appropriate for your system. Log onto the computer that is connected to the printer. Close all applications. Turn off virus checkers and terminate-andstay-resident (TSR) programs. After installation, these programs can be turned back on. Insert the HP Color LaserJet 4550 Printing System and Documentation CD-ROM into the CD-ROM drive. The CD-ROM should run automatically.
If AutoPlay does not automatically begin the installer program, click Start and then click Run. Type D:\SETUP.EXE at the prompt. (This assumes that your CD-ROM drive is the D:\ drive.) 4 A screen appears that allows you to browse the contents of the CD-ROM or begin installing the printer software. Click Install Printer and follow the instructions on your screen. There are two installation options for the printing system software. The Typical installation option will install the following: PCL 6 printer driver and online Help PCL 5c printer driver and online Help PS printer driver and online Help The Custom installation option allows you to cancel any of the printing system software options.
To download the latest version of HP Web JetAdmin, visit HP Customer Care online at http://www.hp.com/support/net_printing.

Task 14 45

Task 15 Software installation for network administrators
Use this procedure if you are a network administrator who is installing the printer on a network for network clients. WWW HP recommends that network administrators use HP Web JetAdmin to manage HP printers on a network. HP Web JetAdmin is available from the web at http://www.hp.com/support/net_printing.

46 Task 15

This procedure consists of the following general steps (detailed instructions follow):
Depending on the network environment, install the software on either the network administrator workstation or on the network server. From a Windows 9x, Windows NT 4.0, or Windows 2000 system, run the printer installation software to set up your printer on a Microsoft or Novell Netware network. For other networks, refer to the HP JetDirect Print Server Administrators Guide. Distribute the printer driver to each network client. You can pass around the CD-ROM, or you can place disk images of the driver onto a network directory or onto diskettes. Install the software onto client workstations. Users may connect their workstations to the printer by using the Add Printer Wizard (Windows). For specific instructions, see Task 20, Connect to the printer.
If the printer has the optional 500-sheet paper feeder or optional duplex printing accessory, configure the printer driver on each computer to show that these options are installed (see the printer driver online Help for instructions).
These instructions are for network administrators. Procedures for installing the software vary according to your operating system and network environment. Use the instructions below that best match your operating system and network environment.
Windows 9x, Windows NT 4.0, and Windows 2000
The setup software detects both the version of Windows that you are running and the language that is selected in your operating system. The setup software then installs printer drivers and software that are appropriate for your system. Note For Novell NetWare or Microsoft networks, run the printer installation software. On NetWare networks, you will be able to set up the appropriate queues on the NetWare server and HP JetDirect print server. On Microsoft networks, you can set up IP configuration parameters and share the printer. For Windows NT 4.0, and Windows 2000 server networks, install the software on the server.

Task 15 47

Depending on your environment, log onto the network administrator workstation or onto the server with Supervisor or Administrator privileges. Close all applications. Turn off virus checkers and terminate-andstay-resident (TSR) programs. After installation, these programs can be turned back on. Insert the HP Color LaserJet 4550 Printing System and Documentation CD-ROM into the CD-ROM drive. The CD-ROM should run automatically.
If AutoPlay does not automatically begin the installer program, click Start and then click Run. Type D:\SETUP.EXE at the prompt. (This assumes that your CD-ROM drive is the D:\ drive.) 4 A screen will appear that will allow you to browse the contents of the CD-ROM, or begin installing the printer software. Click Install Printer, and follow the instructions on your screen. There are two installation options for the printing system software. The Typical installation option will install the following: PCL 6 printer driver and online Help PCL 5e printer driver and online Help PS printer driver and online Help The Custom installation option allows you to cancel any of the printing system software options.
You can quickly create a port for the printer as part of the installation process using the HP Network Printer Wizard.

48 Task 15

Task 16 Software installation for Macintosh users
On a Macintosh-compatible computer, the installation procedures are the same for a network administrator, a network client, and a single user. Install the software on any computer that will be printing to the printer. (Individual user connection illustrated below.) In an AppleTalk environment, you have the option of assigning a name and a network zone to the printer. Users may connect their workstations to the printer by configuring a LaserWriter 8 driver with the new PPD in the Chooser (Macintosh). For specific instructions, see Task 20, Connect to the printer.

Task 16 49

The Macintosh partition on the CD-ROM contains an installer program for each available language. Find the language that is appropriate for your operating system, and then use the installer program for that language. Note If the computer is connected to the printer by a LocalTalk (Printer Port) or EtherNet connection, the AppleTalk (or Network) control panel must be configured for the correct connection to communicate with the printer. Quit all open applications. Insert the compact disc into the CD-ROM drive. Double-click the Installer icon and follow the instructions on the screen. Open the Chooser from the Apple menu. Click the Apple LaserWriter 8 icon. If the icon is not there, contact your Macintosh dealer. If you are on a network with multiple zones, select the zone in the AppleTalk Zones box where the printer is located. If you do not know the zone where the printer is located, ask your network administrator. Double-click the desired printer. A Desktop Printer icon should appear. Close the Chooser.

50 Task 16

Task 17 Configure the printer on the network
You can use the printer installation software on the CD-ROM to install and configure the printer on the network. For other options, refer to the HP JetDirect Print Server Administrators Guide.

Task 17 51

Task 18 Distribute the software to network clients (optional)
Before a network client can print to the printer, the printing system software must be installed on the clients workstation. Rather than distributing the CD-ROM to each client, you can place disk images of the installation software onto a public directory. The softwares Disk Copy option lets you copy disk images only for Windows operating systems to a designated directory.
Creating disk images with Installer Customization Utility
1 Insert the HP Color LaserJet 4550 Printing System and Documentation CD-ROM into the CD-ROM drive. The CD-ROM will automatically begin.
If AutoPlay does not automatically begin the installer program, Click Start and then click Run. Type D:\SETUP.EXE at the prompt. (This assumes that your CD-ROM drive is the D:\ drive.) When you are prompted to choose the method of installation, click Installer Customization Utility. Select the language and operating system versions for which you want to create disk images, and then choose the drivers package you want included in the disk images. Click Browse to assign a path to the drive and directory where you want to copy the disk images. Click Next and then follow the instructions on the screen.

52 Task 18

Task 19 Install the software for network clients (optional)
Before a client can print to the printer, the printing system software must be installed on the clients workstation. Procedures for installing the software vary, depending on the operating system you are using. Use the instructions below that apply to your operating system.

Windows

The procedures for installing end-user software on client workstations are similar to the installation procedures for network administrators. Note Install the end-user software on client workstations by running SETUP.EXE. Follow the instructions on the screen.
To install the end-user software onto a Windows NT 4.0 or Windows 2000 workstation, you must have administrator privileges on that workstation.
Do not install the PCL driver or PostScript 3 emulation driver(s) onto Windows NT workstations when you install other end-user software. Clear the PCL and PostScript Driver check boxes in the Components list during the Custom Install. The driver(s) will be installed from the server when you connect to the network printer in Task 20, Connect to the printer. Users of a shared network version of Windows can install only those software components that the network administrator installed during the network administrator installation. For a minimal install (driver only) in Windows 3.1x, install using the operating system. For a minimal install in Windows 9x, Windows NT 4.0, or Windows 2000, use the Add Printer Wizard.

Cannot print using a sharing (switchbox) Remove the sharing device to isolate the cause of the problem. device. Test the printer using a cable connected directly from the computer to the printer. Contact the sharing device vendor for troubleshooting steps. Random garbage characters are printing. The cable might be bad or installed incorrectly, or might be too long. Remove the cable and reconnect it, making sure it is securely connected. Try another bidirectional parallel cable (IEEE-1284 compliant) with a C-size connector under 10 m (32 ft) in length. Replace the cable with an HP C2946A cable or equivalent. There may be a bad port on the computer or printer. Try using a different port, or, if possible, a different computer or printer to help isolate the problem. Control panel displays

13.X PAPER JAM.

Paper may be jammed in one of several locations. Clear all jams according to instructions in the online user guide, or see an online virtual demonstration at http://www.hp.com/ lj4550_solve_a_problem. Make sure packing spacers are removed from all media trays.
56 Troubleshooting checklist
Control panel displays an error message. Turn the printer off and back on. If the message does not clear, see the online user guide, or see http://www.hp.com/lj4550_solve_a_problem. Cannot find the printer in the network OR The HP JetDirect configuration page indicates an I/O CARD NOT READY message. Ensure your configuration parameters are correct. See the troubleshooting section in the HP JetDirect Print Server Administrators Guide. Verify cabling connections.
For more messages and solutions, see the chapter called Solving Problems with the Printer in the online user guide.
Troubleshooting checklist 57
Communicating with an optional HP JetDirect Print Server
If the printer contains an optional HP JetDirect print server, and you cannot communicate with the printer over the network, verify the operation of the print server. Print an HP JetDirect configuration page. If the message I/O CARD READY does not appear on the configuration page, see the troubleshooting section of the HP JetDirect Print Server Administrators Guide.
HP JetDirect 10/100TX print server
If the printer contains an optional HP JetDirect 10/100TX print server, check to see that the print server was able to link to the network:
Check the link-speed indicators (10 or 100) on the print server. If both are off, the print server failed to link to the network. Check the HP JetDirect configuration page. The message LOSS OF CARRIER ERROR indicates that the print server failed to link to the network. If the print server failed to link, verify that all cables are correctly connected. If all cables are correctly connected and the print server still fails to link, follow the steps below: Use the EIO menu at the printers control panel to manually set the HP JetDirect print servers operating mode. Verify that the configuration of the connecting network device (such as a 10/100TX network switch) matches. For example, to set the print server for 100TX Full-duplex operation, the port on the network switch must also be set for 100TX Full-duplex operation. Turn the printer on and check the print server operation. If the print server fails to link, contact HP for assistance. Refer to Support information on page 60 or in the online user guide for URLs and phone numbers.

58 Communicating with an optional HP JetDirect Print Server

Regulatory statements

FCC regulations
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy. If it is not installed and used in accordance with the instructions, it may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

G G G G

Reorient or relocate the receiving antenna. Increase separation between equipment and receiver. Connect equipment to an outlet on a circuit different from that to which the receiver is located. Consult your dealer or an experienced radio/TV technician.
Any changes or modifications to the printer that are not expressly approved by HP could void the users authority to operate this equipment. Use of a shielded interface cable is required to comply with the Class A limits of Part 15 of FCC rules.

Canadian DOC regulations

Complies with Canadian EMC Class A requirements. Conforme la classe A des normes canadiennes de compatibilit lectromagntiques (CEM).

Regulatory statements 59

Support information
HP Customer Care Online services: for 24-hour access to information over your modem, we suggest these services: World Wide Web URLPrinter drivers, updated HP software, plus product and support information may be obtained from the following URLs: in the U.S. http://www.hp.com/support/lj4550 in Europe http://www2.hp.com
Printer drivers may be obtained from the following sites: in Japan ftp://www.jpn.hp.com/drivers in Korea http://www.hp.co.kr in Taiwan http://www.hp.com.tw or the local driver website http://www.dds.com.tw
Obtaining software utilities and electronic information for U.S.:
Phone: (805) 257-5565 Fax: (805) 257-6995
Mail: Hewlett-Packard Distribution P Box 907.O. Santa Clarita, CA 91380-9007 U.S.A.
HP website: http://www.hp.com
For Canada: For Asia-Pacific countries/regions: For Australia, New Zealand, and India: For European English:
(905) 206-4663 Contact Mentor Media at (65) 740-4477 (Hong Kong, Indonesia, Philippines, Malaysia, or Singapore). For Korea, call (82) (2) 3270-0805 or (82) (2) 3270-0893. For Australia and New Zealand, call (61) (2) 565-6099. For India, call (91) (11) 682-6035. For U.K., call (44) (142) 986-5511. For Ireland and outside U.K., call (44) (142) 986-5511.

Dutch French

62 Support information
Customer Support Worldwide (continued) In-country/region support numbers: HP provides a free telephone support service during the
warranty period. By calling a telephone number listed below, you will be connected to a responsive team waiting to help you. If you require support after your warranty has expired, you can receive support for a fee through the same telephone number. The fee is charged on a per-incident basis. When calling HP, have the following information ready: product number and serial number, date of purchase, and description of the problem. Argentina Australia Brazil Canada China Chile Czech Republic Greece Hong Kong Hungary India Indonesia Israel Japan Korea Korea (outside Seoul) (54) (1) 778-8380 (61) (3) 8877-8000 (011) 829-6612 (1) (208) 323-2551 (86) (0) (10) 6564-5959 800-360-999 (420) (2) 6130-7310 (30) (0) (1) 689-6411 (852) 800-96-7729 (36) (0) (1) 382-1111 (91) (11) 682-6035 (62) (21) 350-3408 (972) (0) (9) 952-4848 (81) (3) 3335-8333 (82) (2) 3270-0700 (82) (080) 999-0700 Malaysia Mexico New Zealand Philippines Poland Portugal Russia Singapore South Africa Taiwan Thailand Turkey Venezuela Venezuela (Caracas) Vietnam (60) (3) 295-800-472-6684 (64) (9) 356-6640 (63) (2) 867-3551 (48) (22) 519-0600 (351) (0) (1) 317-6333 (7) (0) (95) 797-3520 (65) 272-5300 (27) (86) 000-1030 (886) (2) 2717-0055 (66) (2) 661-4000 (90) (212) 224-5925 800-47-888 207-8488 (84) (0) 8 823-4530

Support information 63

64 Support information
copyright 2002 Hewlett-Packard Company
*C7085-90948* *C7085-90948*

C7085-90948

DIMM configuration
You can add additional Random Access Memory (RAM) to this printer by installing Dual Inline Memory Modules (DIMMs). The HP Color LaserJet 4500 printer uses 100-pin, non-parity, synchronous DRAM memory modules. The HP Color LaserJet 4550 printer uses 168-pin synchronous DRAM memory modules. The SDRAM modules do not need to be configured in pairs (in corresponding left and right slots). Note Extended Data Output (EDO) DIMMs are not supported.

Adding memory

HP Color LaserJet 4500 printer
You can install 4, 8, 16, 32, or 64 MB DIMMs into the printers three DIMM slots. The DIMM slots can be used to add memory, fonts, or firmware upgrades.
HP Color LaserJet 4550 printer
You can install 64 or 128 MB DIMMs into the printers two DIMM slots. The DIMM slots may be used to add memory only. You can add fonts or firmware upgrades to the printers two 100-pin slots. Note The HP Color LaserJet 4500 printer will recognize RAM only up to 208 MB. The HP Color LaserJet 4550 printer will recognize RAM only up to 192 MB. Additional memory will not be used by either printer. To install memory in the printer, you must remove the formatter board from the rear of the printer. To remove the formatter board, remove the six screws shown in Figure 4-4. The DIMMs are then inserted into the available slots in the formatter board. See Appendix A in the online user guide for installation instructions.

Figure 4-4

Removing the formatter board

CAUTION

Do not attempt to remove the DIMM in slot #4 (see Figure 4-5) of the HP Color LaserJet 4500 printer, or the DIMM in slot #3 (see Figure 4-6) of the HP Color LaserJet 4550 printer. This DIMM is part of the printers firmware. Removing it will affect printer operation.

98 Printer maintenance

C7085-90921

Figure 4-5

Do not remove the DIMM in slot #4.

Figure 4-6

Do not remove the DIMM in slot #3.
The HP Color LaserJet 4500 printer uses 100-pin, non-parity, synchronous SDRAM DIMMs. The HP Color LaserJet 4550 printer uses 168-pin, non-parity, synchronous DRAM DIMMs; EDO DIMMs are not supported in either the HP Color LaserJet 4500 printer or the 4550 printer. To ensure you are using the correct DIMM, see figure 4-7.

Figure 4-7

EDO and SDRAM memory modules
Chapter 4 Printer maintenance 99