HP LaserJet 2300 Series Service Manual

hp LaserJet 2300 series printer

service

hp LaserJet 2300 series printer

service manual _____________

© Copyright Hewlett-Packard

Company, 2003

All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws.

Part number: Q2472-90908

Edition 1, April 2003

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. HEWLETTPACKARD 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® and PostScript® are trademarks of Adobe Systems Incorporated which may be registered in certain jurisdictions.

UNIX® is a registered trademark of the Open Group.

ENERGY STAR® is a U.S. registered service mark of the United States Environmental Protection Agency.

Hewlett-Packard Company

11311 Chinden Boulevard

Boise, Idaho 83714 U.S.A.

Contents

1 Product description

Printer configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Printer features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Power consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Acoustic emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Operating environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Print-cartridge and toner safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Laser safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Regulatory information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 FCC regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Environmental product stewardship program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Protecting the environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Material safety data sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 HP Printing Supplies Environmental Program information . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Service approach. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Bench-repair warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 HP Express Exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Information about ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 World Wide Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 HP service parts-information compact disc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 HP support-assistant compact disc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Reseller sales and service support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2 Installation

Site requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Operating environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Printer space requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Interface ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

ENWW	Contents 3

Media specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 General media specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Media input options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Tray 1 media sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Optional 250-sheet tray (tray 2 or tray 3) paper sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Optional 500-sheet tray (tray 3) paper sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Paper sizes for automatic duplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Guidelines for selecting paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Envelope specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Label specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Transparency specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Storing print media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Shipping print media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Paper fillers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Testing media specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Tools and suppliers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

3 Operation

Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Control-panel layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Changing control-panel settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Printing control-panel menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Control-panel menus—user . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Retrieve job menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Information menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Paper-handling menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Configure device menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Diagnostics menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Control-panel menus—service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Entering service mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

4 Printer maintenance
Periodic inspection of parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	74
Cleaning the printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	75
Cleaning the fuser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	76
Cleaning the outside of the printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	76
Managing the print cartridge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	77
HP print cartridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	77
Non-HP print cartridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	77
Print-cartridge authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	77
Print-cartridge storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	78
Print-cartridge life expectancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	78
Checking the supply level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	79
Cartridge-low and cartridge-out conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	80
Supplies status page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	81

4 Contents

ENWW

5 Theory of operation

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84 Basic sequence of operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Power-on sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Engine control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Laser/scanner system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Image-formation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Image-formation process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Electrostatic latent-image-formation block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90 Developing block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Transfer block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Fusing block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Drum-cleaning block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 Pickup/feed system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Single-sided printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Duplex printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95 Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Automatic duplexer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Formatter system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99 Formatter hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100 Formatter subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101 Sheet feeders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103 Media detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105 Media-size detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105 Jam detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106 Pickup sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106 Delivery sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107 Reversing sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107 Automatic duplexer sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108 Paper-feed sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108

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6 Removal and replacement

Removal and replacement strategies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Required tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Before you begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 I/O cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 Print server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 DIMM cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 Rear cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Front cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Top-cover assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 Left-side cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 Power switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 Tray 1 assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Internal assemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Tray 1 pickup roller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Pickup sensor flag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 Tray 1 separation pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 Tray 2 pickup roller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 Tray 2 and 250-sheet feeder separation pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 Fuser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Laser/scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 Laser/scanner plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 E-label reader. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 Formatter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Drive assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 Main motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 Flat, flexible cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Engine controller PCA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 Access plate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 Top-output-bin delivery assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 Registration-roller assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 Transfer roller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 Feed belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175 Trays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176 250-sheet feeder and 500-sheet feeder pickup roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176 500-sheet feeder separation pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

6 Contents

ENWW

7 Troubleshooting

Troubleshooting process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .180 Preliminary operating checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .180 Basic fault isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .180 Troubleshooting process flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .182 Power-on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .183 Troubleshooting with control-panel messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .184 Using the printer online Help system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .184 Resolving persistent messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .184 Troubleshooting the control-panel display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .185 Interpreting control-panel messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .186 Media-handling problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .199 Printing a configuration page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .199 Printing a Jetdirect configuration page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200 Printing a usage page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .201 Printing a supplies status page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .201 Printing an engine test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .202 Jam troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204 Jam causes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205 Typical jam locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205 Image-formation troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210 Check the print cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211 EconoMode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211 Image defects unique to the HP LaserJet 2300 series printers . . . . . . . . . . . . . . . . . . . . . .211 Image-defect tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .212 Media troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218 Determine the problem source: print media or printer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218 Isolate a paper path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218 Isolate a media brand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .219 Isolate a media type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220 Evaluate media use practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .224 Evaluate environmental conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .224 Communication troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226 Communications check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .226 Test message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .226 EIO troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .226 Troubleshooting tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .227 Repetitive defect ruler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .227 Half-self-test functional check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .228 Performing a self test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .229 Performing a paper path test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .229 Drum-rotation functional check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .229 Resetting the printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .230 Setting the language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .230 Reference diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .231

ENWW	Contents 7

8 Parts and diagrams

Ordering parts and supplies and getting support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242 Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242 Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242 Consumables, accessories, and supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243 Common fasteners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244 Illustrations and parts lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 Assembly locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246 Covers and panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246 Top cover assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248 Internal components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 Internal components (1 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 Internal components (2 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252 Internal components (3 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 Internal components (4 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256 Power-supply assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258 Pickup assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260 Engine controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262 PCA locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263 Trays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264 250-sheet feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264 500-sheet feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266 Alphabetical parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268 Numerical parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273

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Figures

Figure 1. Locations of identification labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Figure 2. Sample identification label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Figure 3. Front and right side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Figure 4. Back and left side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 5. Top view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Figure 6. Side view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Figure 7. Side view (with an optional 250-sheet tray) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Figure 8. Side view (with an optional 500-sheet tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Figure 9. Interface ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Figure 10. Correct double side seam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Figure 11. Incorrect double side seam. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Figure 12. Wet test for long, short, and diagonal grain curl . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Figure 13. Measuring curl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 Figure 14. Control-panel layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Figure 15. Supplies status page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Figure 16. Engine control system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Figure 17. Laser/scanner system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Figure 18. Image-formation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Figure 19. Image-formation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Figure 20. Step 1: primary charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Figure 21. Step 2: laser-beam exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Figure 22. Developing block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Figure 23. Step 3: developing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Figure 24. Step 4: transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Figure 25. Step 5: separation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Figure 26. Step 6: fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Figure 27. Step 7: drum cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 Figure 28. Step 8: transfer charging roller cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94 Figure 29. Pickup/feed system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Figure 30. Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Figure 31. Automatic duplexer path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Figure 32. Automatic duplexer feed and delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Figure 33. Pickup-feed paper path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103 Figure 34. Sheet-feeder pickup and feed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104 Figure 35. Media-detection sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105 Figure 36. Removing the print cartridge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112 Figure 37. Removing tray 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112 Figure 38. Removing the I/O cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113 Figure 39. Removing the print server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114 Figure 40. Removing the DIMM cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115 Figure 41. Removing the rear cover (1 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116 Figure 42. Removing the rear cover (2 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117 Figure 43. Removing the rear cover (3 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118 Figure 44. Removing the front cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119 Figure 45. Removing the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120 Figure 46. Removing the top-cover assembly (1 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121 Figure 47. Removing the top-cover assembly (2 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122 Figure 48. Removing the top-cover assembly (3 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123 Figure 49. Removing the left-side cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124 Figure 50. Removing the power switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125 Figure 51. Removing the tray 1 assembly (1 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126 Figure 52. Removing the tray 1 assembly (2 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127

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Figure 53. Removing the tray 1 assembly (3 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 Figure 54. Removing the tray 1 assembly (4 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Figure 55. Removing the tray 1 pickup roller (1 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Figure 56. Removing the tray 1 pickup roller (2 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 Figure 57. Removing the pickup sensor flag. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 Figure 58. Removing the tray 1 separation pad (1 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 Figure 59. Removing the tray 1 separation pad (2 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 Figure 60. Removing the tray 1 separation pad (3 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 Figure 61. Removing the tray 2 pickup roller (1 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 Figure 62. Removing the tray 2 pickup roller (2 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 Figure 63. Removing the tray 2 pickup roller (3 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 Figure 64. Removing the tray 2 and 250-sheet feeder separation pad. . . . . . . . . . . . . . . . . 139 Figure 65. Removing the fan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 Figure 66. Removing the fuser (1 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Figure 67. Removing the fuser (2 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 Figure 68. Removing the laser/scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 Figure 69. Removing the e-label reader (1 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 Figure 70. Removing the e-label reader (2 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 Figure 71. Removing the e-label reader (3 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146 Figure 72. Removing the formatter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Figure 73. Removing the drive assembly (1 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 Figure 74. Removing the drive assembly (2 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149 Figure 75. Removing the drive assembly (3 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Figure 76. Removing the main motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 Figure 77. Removing the flat, flexible cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Figure 78. Removing the engine controller PCA (1 of 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 Figure 79. Removing the engine controller PCA (2 of 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 Figure 80. Removing the engine controller PCA (3 of 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 Figure 81. Removing the engine controller PCA (4 of 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 Figure 82. Removing the engine controller PCA (5 of 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 Figure 83. Removing the solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 Figure 84. Removing the access plate (1 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 Figure 85. Removing the access plate (2 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 Figure 86. Removing the access plate (3 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161 Figure 87. Removing the power supply (1 of 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 Figure 88. Removing the power supply (2 of 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 Figure 89. Removing the power supply (3 of 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164 Figure 90. Removing the power supply (4 of 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165 Figure 91. Removing the power supply (5 of 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166 Figure 92. Removing the power supply (6 of 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 Figure 93. Power-supply PCA spring-contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 Figure 94. Removing the top-output-bin-delivery assembly (1 of 3) . . . . . . . . . . . . . . . . . . . 169 Figure 95. Removing the top-output-bin delivery assembly (2 of 3) . . . . . . . . . . . . . . . . . . . 170 Figure 96. Removing the top-output-bin delivery assembly (3 of 3) . . . . . . . . . . . . . . . . . . . 171 Figure 97. Removing the registration-roller assembly (1 of 2) . . . . . . . . . . . . . . . . . . . . . . . 172 Figure 98. Removing the registration-roller assembly (2 of 2) . . . . . . . . . . . . . . . . . . . . . . . 173 Figure 99. Removing the transfer roller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 Figure 100. Removing the feed belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175 Figure 101. Removing the pickup roller from a 250-sheet or 500-sheet feeder (1 of 2) . . . . . 176 Figure 102. Removing the pickup roller from a 250-sheet or 500-sheet feeder (2 of 2) . . . . . 177 Figure 103. Removing the 500-sheet feeder separation pad . . . . . . . . . . . . . . . . . . . . . . . . . 178 Figure 104. Troubleshooting process flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182 Figure 105. Control panel contrast label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 Figure 106. Configuration page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 Figure 107. Jetdirect configuration page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Figure 108. Engine test button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 Figure 109. Engine test page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 Figure 110. Image defects examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212 Figure 111. Repetitive defect ruler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

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Figure 112. General printer-component locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .231 Figure 113. Locations of switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .232 Figure 114. Locations of sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233 Figure 115. Locations of solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .234 Figure 116. Location of motors and fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .235 Figure 117. Engine controller PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .236 Figure 118. Power supply PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .237 Figure 119. General circuit diagram (1 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .238 Figure 120. General circuit diagram (2 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .239 Figure 121. General timing chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .240 Figure 122. Assembly locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .245 Figure 123. Covers and panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .246 Figure 124. Top cover assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .248 Figure 125. Internal components (1 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .250 Figure 126. Internal components (2 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .252 Figure 127. Internal components (3 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .254 Figure 128. Internal components (4 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .256 Figure 129. Power-supply assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .258 Figure 130. Pickup assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .260 Figure 131. Engine controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262 Figure 132. PCA locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263 Figure 133. 250-sheet feeder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .264 Figure 134. 500-sheet feeder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .266

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12 Figures

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Tables

Table 1. Features for each configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Table 2. Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Table 3. Electrical specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Table 4. Power specifications1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Table 5. Acoustic emissions specifications1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Table 6. Operating environment specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Table 7. Solutions for problem media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Table 8. Envelope specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Table 9. Retrieve job menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Table 10. Information menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Table 11. Paper-handling menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57 Table 12. Configure device menu—printing submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Table 13. Configure device menu—print-quality submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Table 14. Configure device menu—system-setup submenu . . . . . . . . . . . . . . . . . . . . . . . . . 64 Table 15. Configure device menu—I/O submenu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Table 16. Configure device menu—resets submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70 Table 17. Diagnostics menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Table 18. Service menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Table 19. Basic sequence of operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Table 20. Output area jams recommended actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206 Table 21. Paper access area jams—recommended actions . . . . . . . . . . . . . . . . . . . . . . . .207 Table 22. Input-area jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208 Table 23. Possible causes of frequent jams in the cartridge area . . . . . . . . . . . . . . . . . . . .209 Table 24. Image defects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .213 Table 25. Adhesive label construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221 Table 26. Envelope construction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .222 Table 27. Technical support websites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .242 Table 28. Consumables, accessories, and supplies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .243 Table 29. Common fasteners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .244 Table 30. Covers and panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .247 Table 31. Top cover assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .249 Table 32. Internal components (1 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .251 Table 33. Internal components (2 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .253 Table 34. Internal components (3 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .255 Table 35. Internal components (4 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .257 Table 36. Power-supply assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .259 Table 37. Pickup assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .261 Table 38. Engine controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .262 Table 39. PCA locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .263 Table 40. 250-sheet feeder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .265 Table 41. 500-sheet feeder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .267 Table 42. Alphabetical parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .268 Table 43. Numerical parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .273

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Tables 13

14 Tables

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1 Product description

Chapter contents

Printer configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Printer features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Electrical specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Acoustic emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Operating environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Product overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Print-cartridge and toner safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Laser safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Regulatory information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

FCC regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Environmental product stewardship program . . . . . . . . . . . . . . . . . . . . . . . . . 25

Protecting the environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Material safety data sheet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

HP Printing Supplies Environmental Program information . . . . . . . . . . . . 26

Bench-repair warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

HP Express Exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Information about ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

World Wide Web. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

HP service parts-information compact disc . . . . . . . . . . . . . . . . . . . . . . . 28

HP support-assistant compact disc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Reseller sales and service support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

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Printer configurations

	The HP LaserJet 2300 series printer is available in six configurations.
Note	The illustrations in this guide are based on the HP LaserJet 2300 printer model unless otherwise
	stated. To find out which HP LaserJet 2300 configuration you have, look at the label on the front
	of the printer.
	HP LaserJet 2300L
	The HP LaserJet 2300L printer prints letter-size paper at speeds up to 20 pages per minute
	(ppm) or A4-size paper at up to 19 ppm. It comes with a built-in 250-sheet tray, a parallel and a
	universal serial bus (USB) port, and 32 MB RAM. The printer is expandable, and has one
	available enhanced input/output (EIO) slot and two dual inline memory module (DIMM) slots for
	adding a network print server card, fonts, and memory.
	HP LaserJet 2300
	The HP LaserJet 2300 printer is the same as the HP LaserJet 2300L printer, except that it
	prints at speeds up to 25 ppm for letter-size paper and 24 ppm for A4-size paper.
	HP LaserJet 2300d
	The HP LaserJet 2300d printer is the same as the HP LaserJet 2300 printer, except that the
	printer comes with 48 MB RAM and automatically duplexes (prints on both sides of paper).
	HP LaserJet 2300n
	The HP LaserJet 2300n printer is the same as the HP LaserJet 2300 printer, except that it is
	designed for network users. It comes with a full-featured HP Jetdirect EIO print server card (for
	connecting to a 10/100Base-TX network) and 48 MB RAM.
	HP LaserJet 2300dn
	The HP LaserJet 2300dn printer is the same as the HP LaserJet 2300n printer, except that the
	printer also automatically duplexes (prints on both sides of paper).
	HP LaserJet 2300dtn
	The HP LaserJet 2300dtn printer is the same as the HP LaserJet 2300dn printer, except that it
	has an additional 500-sheet tray.

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Printer features

The following table describes the features of the HP LaserJet 2300 series printers.

Fast print	● The HP LaserJet 2300L prints on letter-size paper at speeds up to 20
speed	pages per minute (ppm) or A4-size paper at up to 19 ppm.
	● All other models print on letter-size paper at speeds up to 25 ppm or
	A4-size paper at up to 24 ppm.
Built-in duplexing	● Automatic two-sided (duplex) printing is a standard feature of the
	HP LaserJet 2300d, HP LaserJet 2300dn, and
	HP LaserJet 2300dtn printers.
Print cartridge and status	● The 6,000-page HP Smart Print Cartridge detects and reports toner
features	status.

●

●

The no-shake design maximizes toner use.

The supplies status page provides a toner gauge, page count, and information about paper sizes that have been used.

Excellent print quality	●	FastRes 1200 produces 1200-dpi print quality for fast, high-quality printing
		of business text and graphics.
	●	ProRes 1200 produces 1200-dpi printing for the best quality in line art and
		graphic images.

●

●

Adjustable settings optimize print quality.

The HP Smart Print Cartridge produces crisp, sharp output.

Flexible paper handling	●	Use tray 1 (the multipurpose tray) for letterhead, envelopes, labels,
		transparencies, custom-sized media, postcards, and heavy paper.
	●	Use the adjustable 250-sheet tray (tray 2 or tray 3) for standard sizes of
		paper.

●

●

Use the 500-sheet tray (tray 3) for letter and A4-size paper.

Two output bins are available: select either the top output bin or the rear output bin for the most appropriate output location, depending on media type.

	● A straight-through paper path is available from tray 1 to the
	rear output bin.
	● Built-in automatic two-sided (duplex) printing is available for the
	HP LaserJet 2300d, HP LaserJet 2300dn, and
	HP LaserJet 2300dtn printers.
Expandability	● A 250-sheet or 500-sheet tray is available, so that you do not have to add
	paper as often.

●

●

One EIO card slot is available for interface.

Three DIMM slots are available, two for adding memory and fonts.

Printer languages and	● Fast printing performance, advanced font and graphics technologies, and
fonts	advanced imaging capabilities are benefits of the PCL 6 printer language.
	The PCL 6 technology also includes 45 scalable TrueType™ fonts and
	one bitmapped line printer font.
	● The other available languages and fonts are HP PCL5e and PostScript®
	(PS) 3 emulation, which includes 35 built-in PS language fonts.
	● The printer automatically determines and switches to the appropriate
	language for the print job.

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Interface connections and	●	The printer includes a bidirectional ECP type-B parallel port
networking		(IEEE-1284 compliant) and a USB port (compatible with 1.1 and 2.0 low-
		and full-speed certified devices)
	● The printer has an EIO slot for HP Jetdirect EIO print servers so that you
		can connect quickly and easily.
Enhanced memory and	●	The HP LaserJet 2300 series printers come with either 32 MB or 48 MB
memory expansion		of memory and can be expanded to 288 or 304 MB, respectively, with the
		available memory (DIMM) slots. Most documents can be printed by using
		the standard amount of printer memory.
Energy savings	●	The printer automatically conserves electricity by reducing power
		consumption when it is not printing.
	● When the PowerSave feature is activated, the printer conserves energy
		when it is not in use.
	●	As an ENERGY STAR® partner, Hewlett-Packard Company has determined
		that this product meets ENERGY STAR® guidelines for energy efficiency.
Economical printing	●	N-up printing saves paper by printing multiple pages on one sheet of
		media.

● Automatic two-sided printing with the built-in duplexer saves paper (the built-in duplexer is included only with the HP LaserJet 2300d,

HP LaserJet 2300dn, and HP LaserJet 2300dtn printers).

● Printing in EconoMode saves toner.

The table below gives a quick summary of the features for each model.

Table 1. Features for each configuration

Features	HP LaserJet	HP LaserJet	HP LaserJet	HP LaserJet	HP LaserJet	HP LaserJet
	2300L	2300	2300n	2300d	2300dn	2300dtn
Standard memory	32 MB	32 MB	48 MB	48 MB	48 MB	48 MB
Maximum memory	288 MB	288 MB	304 MB	304 MB	304 MB	304 MB
PostScript 3	Standard	Standard	Standard	Standard	Standard	Standard
emulation
Automatic duplex	N/A	N/A	N/A	Standard	Standard	Standard
printing
250-sheet feeder	Standard	Standard	Standard	Standard	Standard	Standard
500-sheet feeder	Optional	Optional	Optional	Optional	Optional	Standard

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Identification

The model number and printer serial number are listed on identification labels located inside the top cover (callout 1) and on the rear output bin (callout 2).

12

2

Figure 1. Locations of identification labels

The model number is alphanumeric. The serial number contains information about the country of origin, as well as the revision level and the production code of the printer. An example of a serial number is USBB123456.

The identification label on the back of the printer also contains power rating and regulatory information. See figure 2.

Note

The power rating and regulatory information vary by country/region.

Figure 2. Sample identification label

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Specifications

Physical specifications

Table 2. Physical specifications

	HP LaserJet 2300L, 2300,	HP LaserJet 2300dtn
	2300n, 2300d, 2300dn	(with 500-sheet tray)
Height	259.7 mm (10.2 inches)	397.2 mm (15.6 inches)
Width	412.8 mm (16.2 inches)	412.8 mm (16.2 inches)
Depth (body)	450 mm (17.7 inches)	450 mm (17.7 inches)
Weight (with print	14.3 kg (31.6 lb)	18.9 kg (41.6 lb)
cartridge)

Electrical specifications

WARNING! Power requirements are based on the country/region where the printer is sold. Do not convert operating voltages. This can damage the printer and void the product warranty.

Table 3. Electrical specifications

Electrical
specifications	110-volt models	220-volt models
Power requirements	110 to 127 V (+/- 10%)	220 to 240 V (+/- 10%)
	50/60 Hz (+/- 3 Hz)	50/60 Hz (+/- 3 Hz)
Minimum	5.0 amps	2.5 amps
recommended circuit
capacity

Power consumption

Table 4. Power specifications1

		Average power consumption (in watts)
	Printing	Printing		PowerSave2
Product model	(20 ppm)	(25 ppm)	Standby		Off
HP LaserJet 2300L	394 W	—	8.8 W	8.6 W	0 W
HP LaserJet 2300	—	426 W	8.8 W	8.4 W	0 W
HP LaserJet 2300n	—	426 W	9.6 W	9.3 W	0 W
HP LaserJet 2300d	—	426 W	8.8 W	8.4 W	0 W
HP LaserJet 2300dn	—	426 W	9.6 W	9.3 W	0 W
HP LaserJet 2300dtn	—	426 W	9.6 W	9.3 W	0 W

1 Values are subject to change. See http://www.hp.com/support/lj2300 for current information. 2 The PowerSave default activation time is 15 minutes.

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Acoustic emissions

Table 5. Acoustic emissions specifications1

Sound power level	Declared per ISO 9296
Printing	LWAd = 6.6 bels(A)
(HP LaserJet 2300L at 20 ppm)
Printing	LWAd = 6.7 bels(A)
(all other models at 25 ppm)
PowerSave/standby2	Inaudible
(all models)
Sound pressure level, bystander position	Declared per ISO 9296
Printing	Inaudible
(HP LaserJet 2300L at 20 ppm)
Printing	LpAm = 52 dB(A)
(all other models at 25 ppm)
PowerSave/standby2	Inaudible
(all models)
Sound pressure level, operator position	Declared per ISO 9296
Printing	Inaudible
(HP LaserJet 2300L at 20 ppm)
Printing	LpAm = 59 dB(A)
(all other models at 25 ppm)
PowerSave/standby2	Inaudible
(all models)

1 Values are subject to change. See http://www.hp.com/support/lj2300 for current information. 2 In standby, no mechanical parts are moving and therefore no sounds are made.

Operating environment

Table 6. Operating environment specifications

Environmental
condition	Printing	Storage/standby
Temperature	15 to 32.5 degrees C	-20 to 40 degrees C
(printer and print	(59 to 90.5 degrees F)	(-4 to 104 degrees F)
cartridge)
Relative humidity	10 to 80 percent	10 to 90 percent

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Product overview

Top output bin

Top cover

Tray 1

Tray 2

Control panel

Figure 3. Front and right side

Rear output bin

Power connector

Figure 4.

Back and left side

I/O cover

DIMM cover

Power switch

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Safety information

Print-cartridge and toner safety

For information about print-cartridge and toner safety, see the Toner Cartridge Material Safety Data Sheet (MSDS), which can be obtained at http://www.hp.com/go/msds.

Handling and storage

WARNING! Keep print cartridges and toner particles away from excessive heat, sparks, and open flames.

If toner is spilled, avoid breathing in toner particles. Inhalation of toner particles causes respiratory-tract irritation. Vacuum or sweep the material into a bag or other sealed container. A vacuum specifically designed for cleaning toner can be used if it is capable of filtering fine particles (5 microns in diameter).

WARNING! Do not vacuum toner using a conventional vacuum. Toner particles used in this product might be too fine for effective vacuuming and could result in damage to a conventional vacuum.

Dispose of waste toner in accordance with local requirements. Do not discharge toner particles in drains.

First aid measures

●Ingestion. If you ingest toner, rinse your mouth out thoroughly with water and drink several glasses of water. Get medical attention if symptoms occur.

●Inhalation. If you inhale toner particles, move to fresh air immediately. If symptoms occur, consult a physician.

●Eye contact. If toner comes in contact with your eyes, immediately flush the eyes with plenty of water for at least 15 minutes. If irritation persists, consult a physician.

●Skin contact. If toner spills on your skin, remove as much toner as possible with a dry tissue, and then wash with cold water.

	Clothing contact
Note	Toner can stain clothing. Hot water or heat (such as heat from a clothes dryer) can cause toner to
	melt and permanently fuse to clothing.
	Clothing is best cleaned by removing as much toner as possible with a dry tissue, and then
	washing with cold water. Air-dry the clothing.

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Laser safety

The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration has implemented regulations for laser products manufactured since August 1, 1976. Compliance is mandatory for products that are marketed in the United States. The printer is certified as a Class 1 laser product under the U.S. Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968.

Because radiation emitted inside the printer is completely confined within protective housings and external covers, the laser beam cannot escape during any phase of normal user operation.

CAUTION	Using controls, making adjustments, bypassing safety switches, or performing procedures other
	than those specified in this service manual can result in exposure to hazardous radiation.

Regulatory information

For regulatory information and requirements, please see the user guide.

FCC regulations

For FCC regulations, please see the user guide.

Declaration of conformity

For the declaration of conformity, please see the user guide.

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Environmental product stewardship program

Protecting the environment

Hewlett-Packard Company is committed to providing quality products in an environmentally sound manner. This product has been designed with several attributes that minimize impacts on our environment.

Ozone production

This product generates no appreciable ozone gas (O3).

Energy consumption

Energy usage drops significantly while the printer is in PowerSave mode, which saves natural resources and saves money without affecting the performance of the printer. This product qualifies for ENERGY STAR ® , a voluntary program established to encourage the development of energy-efficient office products.

ENERGY STAR ® is a U.S. registered service mark of the United States Environmental Protection Agency. As an ENERGY STAR ® partner, Hewlett-Packard Company has determined that this product meets the ENERGY STAR ® guidelines for energy efficiency. For more information, see http://www.epa.gov/energystar/ .

Toner consumption

EconoMode uses significantly less toner, which might extend the life of the print cartridge.

Paper use

This product’s automatic two-sided (duplex) printing feature and n-up printing capability (multiple pages printed on one sheet of paper) can reduce paper usage and the resulting demands on natural resources.

Plastics

Plastic parts more than 25 grams in weight are marked according to international standards that enhance the ability to identify plastics for recycling purposes at the end of the product’s life.

HP LaserJet printing supplies

In many countries/regions, this product’s printing supplies (for example, the print cartridge, drum, and fuser) can be returned to HP through the HP Printing Supplies Returns and Recycling Program. An easy-to-use takeback program is available in more than 48 countries/regions. Multilingual program information and instruction are included in every new HP LaserJet print cartridge and consumables package.

Paper

This printer is suited for the use of recycled papers when the paper meets the guidelines outlined in the HP LaserJet Printer Family Print Media Guide. Also, this printer is suitable for the use of recycled paper according to DIN 19309.

ENWW	Chapter 1 Product description 25

Material safety data sheet

Material safety data sheets (MSDS) can be obtained by contacting the HP LaserJet Supplies website at http://www.hp.com/go/msds .

HP Printing Supplies Environmental Program information

Since 1990, the HP Printing Supplies Returns and Recycling Program has collected millions of used LaserJet print cartridges that otherwise might have been discarded in the world’s landfills. The HP LaserJet print cartridges and consumables are collected and bulk-shipped to our resource and recovery partners, who disassemble the cartridges for recycling. After a thorough quality inspection, selected parts are reclaimed for use in new cartridges. Remaining materials are separated and converted into raw materials for use by other industries to make a variety of useful products.

U.S. returns

For a more environmentally-responsible return of used cartridges and consumables,

HP encourages the use of bulk returns. Simply bundle two or more cartridges together and use the single, pre-paid, pre-addressed UPS label that is supplied in the package. For more information, call (1) [phone] or visit the HP LaserJet Supplies website at http://www.hp.com/recycle .

Non-U.S. returns

Customers should call their local HP sales and service office or visit http://www.hp.com/recycle for information regarding availability of the HP Supplies Returns and Recycling Program.

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Service approach

Bench-repair warranty

The warranty for this product is “return to bench” for a period of one year from the date of purchase. This means that customers who need warranty repair must return their printer to an HP repair center or an Authorized Service Provider (ASP). See “Reseller sales and service support” on page 28.

HP Express Exchange

Through Customer Care Centers in the United States and Canada, customers have an option to initiate Express Exchange. Under this option, customers can have a factory-refurbished printer sent to them within 24 hours.

1The customer contacts the local HP Customer Care Center listed in the product documentation. A technician troubleshoots the situation and determines whether the printer has actually failed. If so, the technician refers the customer to the HP Service Center.

2A representative from the service center requests product and customer information. In some regions, collateral might also be requested.

3Hewlett-Packard Company ships a refurbished replacement unit to arrive the next day. (Geographic distance might prevent next-day shipping.)

4The customer sends the defective printer to Hewlett-Packard at HP's expense.

Customers with onsite support service provided by HP should work directly with the local Customer Care Center instead of following the steps outlined here.

Exchanged units carry the remainder of the original unit’s warranty or a 90-day warranty, whichever is greater. The faster turnaround from HP Express Exchange minimizes downtime over traditional service programs that require the user to ship the failed unit to the manufacturer and then wait for it to be repaired and returned. Because HP pays the shipping charges, the user incurs no hidden costs for the service.

Note	For warranty information and requirements, please see the user guide.

Information about ordering

"Ordering parts" in chapter 8 of this manual contains factory-replacable unit (FRU) and accessory part numbers. Replacement parts can be ordered from the HP Customer Services and Support Organization.

Use only accessories that are specifically designed for this printer. Order accessories from an authorized service or support provider.

ENWW	Chapter 1 Product description 27

World Wide Web

Printer drivers, updated HP printer software, and product and support information can be obtained from the following URL:

in the U.S., http://www.hp.com/support/lj2300

Printer drivers can be obtained from the following sites:

●China, ftp://www.hp.com.cn/support/lj2300

●Japan, ftp://www.jpn.hp.com/support/lj2300

●Korea, http://www.hp.co.kr/support/lj2300

●Taiwan, http://www.hp.com.tw/support/lj2300

or the local driver website, http://www.dds.com.tw

HP service parts-information compact disc

This powerful, CD-ROM-based parts-information tool is designed to give users fast, easy access to parts information, such as pricing and recommended stocking lists, for a wide range of HP products. To subscribe to this quarterly service in the U.S. or Canada, call (1) [phone]. In Asia Pacific countries/regions, call (65) 740-4484. Parts identification and pricing information can also be found on the World Wide Web at http://www.hp.com/go/partsinfo .

HP support-assistant compact disc

This support tool offers a comprehensive online information system that is designed to provide technical and product information about Hewlett-Packard products. To subscribe to this quarterly service in the U.S. or Canada, call (1) [phone]. In Hong Kong SAR, Indonesia, Malaysia, or Singapore, call Mentor Media at (65) 740-4477.

Reseller sales and service support

The HP Customer Care Center is available to assist resellers and service technicians. You can reach this support center in the U.S. or Canada by calling (1) [phone].

HP authorized resellers and support

To locate authorized HP resellers and support, call (1) [phone] in the U.S. or (1) [phone] in Canada.

HP service agreements

Call (1) [phone] in the U.S. or (1) [phone] in Canada.

Other areas

Outside of North America and Europe, contact your local HP sales office for assistance in obtaining technical support for resellers and service technicians.

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