HP LaserJet 2300 Series Service Manual

hp LaserJet 2300

series printer

service

hp LaserJet 2300 series printer

service manual _____________

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. E

NERGY STAR

registered service mark of the United States Environmental Protection Agency.

is a U.S.

Hewlett-Packard Company 11311 Chinden Boulevard Boise, Idaho 83714 U.S.A.

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

ENWW

2 Installation

Site requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Operating environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Printer space requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Interface ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

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

Contents

4 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

ContentsENWW

6 Removal and replacement

Removal and replacement strategies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Required tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 1

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 0

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

Contents

6 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 8

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

8 Parts and diagrams

Ordering parts and supplies and getting support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 2

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

Contents

8 ENWW

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

ENWW

Figures 9

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

Figures

10 ENWW

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

ENWW Figures

Figures

12 ENWW

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

ENWW

Tables 13

Tables

14 ENWW

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

ENWW Chapter 1 Product description 15

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 tra y, a parallel and a universal serial bus (USB) port, and 32 MB RAM. The printer is ex pandable, and has one availab le enha nced input/o utput (EIO) slot and t wo dua l inline memo ry module (DIMM) slots f or 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.

16 Product description ENWW

Printer features

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

Fast print speed

● The HP LaserJet 2300L prints on letter-size paper at speeds up to 20

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 features

● The 6,000-page HP Smart Print Cartridge detects and reports toner

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 av ailab le, 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 fonts

● Fast printing performance, advanced font and graphics technologies, and

advanced imaging capabilities are benefits of the PCL 6 printer language. The PCL 6 technology also includes 45 scalab le 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 networking

● The printer includes a bidirectional ECP type-B parallel port

(IEEE-1284 compliant) and a USB port (compatible with 1.1 and 2.0 lowand 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 memory expansion

Energy savings

Economical printing

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

Table 1. Features for each configuration

● The HP LaserJet 2300 series printers come with either 32 MB or 48 MB

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.

● The printer automatically conserves electricity by reducing power

consumption when it is not printing.

● When the PowerSave feature is activated, the printer conser ves energy

when it is not in use.

● As an ENERGY STAR

that this product meets E

● N-up printing saves paper by printing multiple pages on one sheet of

partner, Hewlett-Packard Compan y has determined

NERGY STAR

guidelines for energy efficiency.

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.

Features

Standard memory Maximum memory

PostScript 3

HP LaserJet 2300L

32 MB 288 MB

HP LaserJet 2300

32 MB 288 MB

HP LaserJet 2300n

48 MB 304 MB

HP LaserJet 2300d

48 MB 304 MB

HP LaserJet 2300dn

48 MB 304 MB

HP LaserJet 2300dtn

48 MB 304 MB

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

18 Product description ENWW

Identification

The model number and printer serial number are listed on ide nt ifica tion la bels lo cate d in side t he top cover (callout 1) and on the rear output bin (callout 2).

Figure 1. Locations of identification labels

The model number is alphanumeric. The serial nu mber contains inf ormation 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

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)

HP LaserJet 2300L, 2300, 2300n, 2300d, 2300dn

HP LaserJet 2300dtn (with 500-sheet tray)

Weight (with print cartridge)

14.3 kg (31.6 lb) 18.9 kg (41.6 lb)

Electrical specifications

WARNING! Po wer 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%)

50/60 Hz (+/- 3 Hz)

Minimum recommended circuit capacity

5.0 amps 2.5 amps

220 to 240 V (+/- 10%) 50/60 Hz (+/- 3 Hz)

Power consumption

Table 4. Power specifications

Average power consumption (in watts)

Printing

Product model

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

2 The PowerSave default activation time is 15 minutes.

(20 ppm)

Printing (25 ppm) Standby PowerSave2Off

for current information.

20 Product description ENWW

Acoustic emissions

Table 5. Acoustic emissions specifications

Sound power level Declared per ISO 9296

Printing (HP LaserJet 2300L at 20 ppm)

Printing (all other models at 25 ppm)

PowerSave/standby (all models)

= 6.6 bels(A)

WAd

= 6.7 bels(A)

WAd

Inaudible

Sound pressure level, bystander position Declared per ISO 9296

Printing (HP LaserJet 2300L at 20 ppm)

Printing (all other models at 25 ppm)

PowerSave/standby (all models)

Inaudible

= 52 dB(A)

pAm

Inaudible

Sound pressure level, operator position Declared per ISO 9296

Printing (HP LaserJet 2300L at 20 ppm)

Inaudible

Printing (all other models at 25 ppm)

PowerSave/standby (all models)

1 Va l u es are subject to change. See http://www.hp.com/support/lj2300 2 In standby, no mechanical parts are moving and therefore no sounds are made.

= 59 dB(A)

pAm

Inaudible

for current information.

Operating environment

Table 6. Operating environment specifications

Environmental condition Printing Storage/standby

Temperature (printer and print cartridge)

Relative humidity 10 to 80 percent 10 to 90 percent

15 to 32.5 degrees C (59 to 90.5 degrees F)

-20 to 40 degrees C (-4 to 104 degrees F)

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Product overview

Top cover

Tray 1

Tray 2

Top output bin

I/O cover

Figure 3. Front and right side

Rear output bin

Control panel

Power connector

DIMM cover

Power switch

Figure 4. Back and left side

22 Product description ENWW

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 con v entio nal v acu um. 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 par ticles, move to fresh air immediately. If symptoms occur,

consult a physician.

● Eye contact. If toner comes in contact with your ey es, immediat ely flush the ey es 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 Pe rformance 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 an y 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.

24 Product description ENWW

Environmental product stewardship program

Protecting the environment

Hewlett-Packard Company is committed to providing quality products in an environmentally sound manner. Th is prod uct has been d esigned 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 E energy-efficient office products.

NERGY STAR

, a voluntary program established to encourage the development of

NERGY STAR

E Agency. As an E product meets the E

http://www.epa.gov/energystar/

is a U.S. registered service mark of the United States Environmental Protection

NERGY STAR

partner, Hewlett-Packard Company has determined that this

guidelines for energy efficiency. For more information, see

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 accor ding t o int ernational standards tha t 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 p roduct’ s p rinting supplies (f or e xample , 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) (800) 340-2445 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.

26 Product description ENWW

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, custo mers ha ve an option to initiate Express Exchange. Under this option, customers can have a factory-refurbished printer sent to them within 24 hours.

1 The 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.

2 A representative from the service center requests product and customer information. In

some regions, collateral might also be requested.

3 Hewlett-Packard Company ships a refurbished replacement unit to arrive the next day.

(Geographic distance might prevent next-day shipping.) 4 The 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,

whicheve r 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 f or it to be repaired an d returned. Because HP pa ys the shipp ing charges , th e 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-R OM-based parts-information tool is designed to giv e users f a st, 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) (800) 336-5987. In Asia Pacific countries/regions , call (65) 740- 4484. P arts identification and pricing info rmation 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 Ca na da, call ( 1) (8 00) 45 7- 17 62. I n Hon g 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) (800) 544-9976.

HP authorized resellers and support

To locate authorized HP resellers and support, call (1) (800) 243-9816 in the U.S. or (1) (800) 387-3867 in Canada.

HP service agreements

Call (1) (800) 743-8305 in the U.S. or (1) (800) 268-1221 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.

28 Product description ENWW

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