Printer features

Category	Specification
Performance	24 pages per minute (ppm) black and white printing 6 ppm color printing Provides the ability to mopy (multiple original prints) with a hard drive
Duty cycle	Up to 60,000 pages per month
Resolution	600 dpi with HP ImageREt 2400 ImageREt 2400 uses a proprietary process to produce millions of solid colors and photorealistic images HP ColorSmart II with sRGB provides smart selection of vivid, smooth and detailed printing by data type 256 levels of gray
Approximate print speeds	Letter: 24 ppm black and white 6 ppm color Legal : 12 ppm black and white 3 ppm color Transparencies : 2.8 ppm black and white 2.1 ppm color Labels : 12 ppm black and white 3 ppm color
Paper handling	Prints on up to 304.80 x 469.90 mm (approximately 12 x 18.5 inches) sized media Printing on media from 68 grams per square meter (16 pounds (lbs)) to 216 grams per square meter bond (58 lbs) A 500-sheet input tray (Tray 3) that supports letter-, legal-, A4-, 279 x 432 mm (11 x 17 inches) and A3-sized media An optional 500-sheet input tray (Tray 2) that supports letter-, legal-, and A4-sized media; standard on some printer models 2,000-sheet input tray (Tray 4); standard on some printer models Optional duplexer, which provides two-sided printing; standard on some printer models A 100-sheet multipurpose tray that supports letter-, legal-, executive-, A3-, A4-, B4-, 279 x 432 mm (11 x 17 inches), B5-, and custom-sized media, as well as envelopes, labels, and card stock Face-down (top) output bin Printer driver selectable face-up (left) output bin with straight-through paper path
Font and memory	Eight universal DIMM slots 32 MB minimum DIMM memory, expandable to 512 MB Advanced Compression technology HP LaserJet 45 TrueType font set and 65 additional TrueType fonts for Microsoft (R) Windows 3.1, Windows 9x, Windows NT 4.0, Windows 2000, and Macintosh Supports forms and fonts on the disk using HP Resource Manager HP Color LaserJet 8550: Customer-installable EIO 3.2 GB disk drive optional 32 MB standard RAM HP Color LaserJet 8550n and 8550dn: 64 MB standard RAM Internal IDE 3.2 GB disk drive HP Color LaserJet 8550gn: 128 MB standard RAM provides optimal performance level Internal IDE 3.2 GB disk drive
Printer personality support	PCL 5 color extension support in the printer Adobe (R) PostScript (R) 3 (TM) support (includes PDF) Automatic printer personality switching User interface and EIO Standard ECP or bidirectional parallel cable interface (IEEE-1284 compliant) 2 enhanced input/output (EIO) slots Automatic I/O (input/output) switching HP Web Jetadmin software HP LaserJet Utility (Macintosh only)
Font capabilities	45 scalable HP FontSmart typefaces built-in 136 scalable Adobe PostScript Type 1 typefaces Accepts all Type 1 typefaces with Adobe PostScript TrueType rasterizer in both HP PCL and Adobe PostScript printer languages PS3 Fonts available as screen fonts (Win/Mac)
Accessories	Printer hard disk, which provides storage for fonts and macros as well as proof and hold, private jobs, quick copy jobs, and mopying capabilities Optional synchronous dynamic random-access memory (DRAM) DIMM device memory Optional multi-bin mailbox, which provides multiple output destinations Optional 3000-sheet Stapler/Stacker Optional 3000-sheet Stacker Optional HP Jetdirect internal print server for network connection (standard on some models)

Printer configurations

This printer is available in five configurations, as described below:

Printer	Configuration
HP Color LaserJet 8550 printer	Comes standard with: 100-sheet Tray 1 500-sheet Tray 3 Printer stand 32 MB RAM 200 MHz Processor
HP Color LaserJet 8550n printer	Comes standard with: 100-sheet Tray 1 500-sheet Tray 2 500-sheet Tray 3 Printer stand 64 MB RAM HP Jetdirect print server (10/100 Base-TX) Internal hard disk 200 MHz Processor
HP Color LaserJet 8550dn printer	Comes standard with: 100-sheet Tray 1 500-sheet Tray 2 500-sheet Tray 3 (Tray 4) 2000-sheet input tray Duplexer 64 MB RAM HP Jetdirect print server (10/100 Base-TX) Internal hard disk Five stabilizing legs 200 MHz Processor
HP Color LaserJet 8500gn printer	Comes standard with: 100-sheet Tray 1 500-sheet tray 500-sheet Tray 3 (Tray 4) 2000-sheet input tray Duplexer 128 MB RAM HP Jetdirect print server (10/100 Base-TX) Internal hard disk Five stabilizing legs 300 MHz Processor
HP Color LaserJet 8500 MFP printer	Comes standard with: 100-sheet Tray 1 500-sheet Tray 2 500-sheet Tray 3 Duplexer 64 MB RAM HP Jetdirect print server (10/100 Base-TX) Internal hard disk Printer/copy module stand Copy module 200 MHz Processor

Supported media weights and sizes for input trays

The following table lists the types and sizes of media supported by each input tray. For best results, use HP LaserJet paper or conventional white xerographic paper. The media should be good quality and free of cuts, nicks, tears, spots, loose particles, dust, wrinkles, voids, perforations, and curled or bent edges.

Tray location	Media type	Media size (common names and dimensions)	Media weight	Maximum capacity
Tray 1	Paper: Plain Pre-printed Letterhead Pre-punched Bond Recycled Color Card Stock Heavy (greater than 105 grams per square meter or 28 pounds bond) Glossy	Executive 184.15 x 266.70 mm (7.25 x 10.50 inches) Letter 215.90 x 279.40 mm (8.50 x 11 inches) Legal 215.90 x 355.60 mm (8.50 x 14 inches) 279.40 x 431.80 mm (11 x 17 inches) A5 148 x 210 mm (5.83 x 8.27 inches) ISO B5 176 x 250 mm (6.93 x 9.85 inches) JIS B5 182 x 257 mm (7.17 x 10.13 inches) A4 210 x 297 mm (8.27 x 11.70 inches) JIS B4 257 x 364 mm (10.13 x 14.34 inches) A3 297 x 420 mm (11.70 x 16.55 inches) 304.80 x 469.90 mm (12 x 18.50 inches) 312 x 440 mm (12.29 x 17.33 inches) Custom Minimum: 99 x 190 mm (3.90 x 7.49 inches) Maximum: 304 x 469 mm (11.98 x 18.48 inches)	60 to 216 grams per square meter (16 to 58 pounds) bond	100 sheets of 75 grams per square meter (20 pounds) bond Limit to media-fill mark on the media width guides
Tray location	Media type	Media size (common names and dimensions)	Media weight	Maximum capacity
Tray 1	Envelopes	Monarch 99.06 x 90.50 mm (3.90 x 7.50 inches) Commercial #10 (Com10) 104.14 x 241.30 mm (4.10 x 9.50 inches) DL 110 x 220 mm (4.33 x 8.67 inches) Double Post Card (JPOSTD) 148 x 200 mm (5.83 x 7.88 inches) C5 162 x 229 mm (6.38 x 9.02 inches) B5 176 x 250 mm (6.93 x 9.85 inches)	Maximum 90 grams per square meter (24 pounds) bond	Approximately 10 Limit to media-fill mark on the media width guides
	Labels	Letter 215.90 x 279.40 mm (8.50 x 11 inches) A4 210 x 297 mm (8.27 x 11.70 inches)		Limit to media-fill mark on the media width guides
	Transparencies	Letter 215.90 x 279.40 mm (8.50 x 11 inches) A4 210 x 297 mm (8.27 x 11.70 inches)	0.10 to 0.13 mm thick	Limit to media-fill mark on the media width guides
Trays 2 and 3	Paper: Plain Pre-printed Letterhead Pre-punched Bond Recycled Color Glossy	Letter 215.90 x 279.40 mm (8.50 x 11 inches) Legal 215.90 x 355.60 mm (8.50 by 14 inches) A4 210 x 297 mm (8.27 by 11.70 inches) Tray 3 only 279.40 x 431.80 mm (11 x 17 inches) A3 297 x 420 mm (11.70 x 16.55 inches)	60 to 105 grams per square meter (16 to 28 pounds) bond	500 sheets of 75 grams per square meter (20 pounds) bond Limit to media-fill mark on the media width guides
	Transparencies	Letter 215.90 x 279.40 mm (8.50 x 11 inches) A4 210 x 297 mm (8.27 x 11.70 inches)	0.10 to 0.13 mm thick	Limit to media-fill mark on the media width guides
Tray 4	Paper: Plain Pre-printed Letterhead Pre-punched Bond Recycled Color Glossy	Letter 215.90 x 279.40 mm (8.50 x 11 inches) Legal 215.90 x 355.60 mm (8.50 x 14 inches) 279.40 x 431.80 mm (11 x 17 inches) A4 210 x 297 mm (8.27 x 11.70 inches) JIS B4 257 x 364 mm (10.13 x 14.34 inches) A3 297 x 420 mm (11.70 x 16.55 inches)	60 to 105 grams per square meter (16 to 28 pounds) bond	2000 sheets of 75 grams per square meter (20 pounds) bond Limit to media-fill mark on the media width guides

Supported media weights and sizes for the optional multi-bin mailbox

The following table lists the types and sizes of media supported by multi-bin mailbox output bins.

Bin	Media type	Media size (common names and dimensions)	Media weight	Maximum capacity
Mailboxes	Paper: Plain Pre-printed Letterhead Pre-punched Bond Recycled Color	Letter 215.90 x 279.40 mm (8.50 x 11 inches) Legal 215.90 x 355.60 mm (8.50 x 14 inches) 279.40 x 431.80 mm (11 x 17 inches) A4 210 x 297 mm (8.27 x 11.70 inches) A3 297 x 420 mm (11.70 x 16.55 inches) JIS B4 257 x 364 mm (10.13 x 14.34 inches)	60 to 105 grams per square meter (16 to 28 pounds) bond	250 sheets of 75 grams per square meter (20 pounds) bond
Bin	Media type	Media size (common names and dimensions)	Media weight	Maximum capacity
Left (face-up) output bin	Paper: Plain Pre-printed Letterhead Pre-punched Bond Recycled Color Card Stock Heavy (greater than 105 grams per square meter (28 pounds) bond Glossy	Letter 215.90 x 279.40 mm (8.50 x 11 inches) Legal 215.90 x 355.60 mm (8.50 x 14 inches) 279.40 x 431.80 mm (11 x 17 inches) Executive 184.15 x 266.70 mm (7.25 x 10.50 inches) A4 210 x 297 mm (8.27 x 11.70 inches) A5 148 x 210 mm (5.83 x 8.27 inches) A3 297 x 420 mm (11.70 x 16.55 inches) JIS B5 182 x 257 mm (7.17 x 10.13 inches) JIS B4 257 x 364 mm (10.13 x 14.34 inches) ISO B5 176 x 250 mm (6.93 x 9.85 inches) 304.80 x 469.90 mm (12 x 18.50 inches) 312 x 440 mm (12.29 x 17.33 inches) Custom Minimum: 99 x 190 mm (3.90 x 7.49 inches) Maximum: 304 x 469 mm (11.98 x 18.48 inches)	60 to 216 grams per square meter (16 to 58 pounds) bond	125 sheets of 75 grams per square meter (20 pounds) bond
	Labels	Letter 215.90 x 279.40 mm (8.50 x 11 inches) A4 210 x 297 mm (8.27 x 11.70 inches)
	Transparencies	Letter 215.90 x 279.40 mm (8.50 x 11 inches) A4 210 x 297 mm (8.27 x 11.70 inches)	0.10 to 0.13 mm thick
	Envelopes	Commercial #10 (Com10) 104.14 x 241.30 mm (4.10 x 9.50 inches) Monarch 99.06 x 190.50 mm (3.90 x 7.50 inches) C5 162 x 229 mm (6.38 x 9.02 inches) DL 110 x 220 mm (4.33 x 8.67 inches) B5 176 x 250 mm (6.93 x 9.85 inches) Double Post Card (JPOSTD) 148 x 200 mm (5.83 x 7.88 inches)	Maximum 90 grams per square meter (24 pounds) bond	30 Monarch-sized envelopes

Supported media weights and sizes for the duplexer

The following table lists the types and sizes of media supported by the optional (standard on some models) duplexer.

Location	Media type	Media size (common names and dimensions)	Media weight	Maximum capacity
Duplexer	Paper: Plain Pre-printed Letterhead Pre-punched Bond Recycled Glossy	Letter 215.90 x 279.40 mm (8.50 x 11 inches) Legal 215.80 x 355.60 mm (8.50 x 14 inches) 279.40 x 431.80 mm (11 x 17 inches) A4 210 x 297 mm (8.27 x 11.70 inches) A3 297 x 420 mm (11.70 x 16.55 inches) JIS B4 257 x 364 mm (10.13 x 14.34 inches) B5 176 x 250 mm (6.93 x 9.85 inches)	60 to 105 grams per square meter (16 to 28 pounds) bond

Supported media weights and sizes for the optional 3000-sheet stapler/stacker

The following table lists the types and sizes of media supported by the optional 3000-sheet stapler/stacker and 3000-sheet stacker tray, bin, or stapler.

Tray, bin, or stapler	Media type	Media size (common names and dimensions)	Media weight	Maximum capacity
Left (face-up) Output Bin	Paper: Plain Pre-printed Letterhead Pre-punched Bond Recycled Color Card Stock Heavy (greater than 105 grams per square meter or 28 pounds) bond Glossy	Letter ISO A4 (landscape orientation only) Legal, Ledger 279 x 432 mm (11 x 17 inches), A3, JIS B4, JIS Double Postcard, JPostD, JIS B5, A5, Executive, JIS Exec, 8K, 16K (portrait orientation only) Custom Minimum: 190 x 98 mm (7.48 x 3.86 inches) Maximum: 460 x 305 mm (18.11 x 11.7 inches) Universal Envelopes: COM 10, C5, DL, Monarch, B5 portrait orientation only)	60 to 199 grams per square meter (16 to 53 pounds) bond	Up to 125 sheets Letter 75 grams per square meter (20 pounds) bond A4 80 grams per square meter (20.5 pounds)
Stacker Bin (optional bin)	Paper: Plain Pre-printed Letterhead Pre-punched Bond Recycled Color	Letter ISO A4 (landscape orientation only) Legal, Ledger 279 x 432 mm (11 x 17 inches), A3, JIS B4, JIS B5, A5, Executive, JIS Exec, 8K, 16K (portrait orientation only) Custom Minimum: 190 x 148 mm (7.48 x 5.83 inches) Maximum: 460 x 297 mm (18.11 x 11.7 inches) Note: Envelopes, transparencies, and labels are ONLY supported in the Face-up Bin.	60 to 110 grams per square meter (16 to 28 pounds) bond	Up to 3,000 sheets Letter 75 grams per square meter (20 pounds) bond A4 80 grams per square meter (20.5 pounds) bond Note: The Stacker Bin’s capacity varies depending on the paper’s size and weight.
Stapler (optional bin)	Paper: Plain Pre-printed Letterhead Pre-punched Bond Recycled Color	Letter ISO A4 (landscape orientation only) Legal, Ledger 279 x 432 mm (11 x 17 inches), A3, JIS B4, JIS B5, A5, Executive, JIS Executive, 8K, 16K (portrait orientation only) Note: Envelopes, transparencies, and labels are ONLY supported in the Face-up Bin.	60 to 110 grams per square meter (16 to 28 pounds) bond	Maximum 5 mm (0.20 inch) stack height. Note : The stapling capacity varies depending on the paper’s thickness.

Electrical specifications

Feature	110-Volt models	220-Volt models
Power requirements	100-127 V (+/- 10%) 50/60 Hz (+/- 2 Hz)	220-240 V (+/- 10%) 50/60 Hz (+/- 2 Hz)
Power consumption (typical): During printing (black & white) During printing (color) During idle During Power Save mode	750 W (average) 375 W (average) 190 W (average) < 45 W	750 W (average) 375 W (average) 190 W (average) < 45 W
Minimum recommended circuit capacity	12.0 A at 120 V	6.0 A at 220 V

Environmental specifications

Attribute	Specification
Temperature: Recommended Allowed	20 to 26 degrees Celsius (C) (68 to 79 degrees Fahrenheit (F)) 15 to 30 degrees C (59 to 86 degrees F)
Humidity: Recommended Allowed	20 to 50% RH 10 to 80% RH
Altitude	0 to 3,048 meters (0 to 10,000 feet)

Copy module specifications (8550 MFP)

Feature	Specification
Type	Console
Glass	Stationary
Photoconductive material	OPC
Copying system	Laser electrostatic transfer system
Developing system	Toner projection system
Fixing system	Heat roller system
Resolution	600 dpi
Gradation	256 patterns
Acceptable copy stock	Paper tray: 60 to 105 grams per square meter (16 to 28 pounds) bond Tray 1: 60 to 216 grams per square meter (16 to 58 pounds) bond color paper, transparencies* (the HP brand is recommended), glossy films*, envelopes (COM10, Monarch, DL, ISO-B5, ISO-C5)* (*Copy stocks that need to be fed through Tray 1.)
Acceptable originals	Sheets, books, and three-dimensional objects up to 2 kilograms (kg) (4.4 pounds)
Maximum original size	279.4 x 431.8 mm (11 x 17 inches); A3
Copy sizes	Paper drawers: 279.4 x 431.8 mm (11 x 17 inches) (A3) to Executive (A5)
Non-image areas	Leading edge: 5 mm +/- 2 mm (1/4 to 1/8 inches) Left and right side: 5 mm +/-2 mm (1/16 to 3/16 inches) Trailing edge: 5 mm +/- 2 mm (1/16 to 3/16 inches)
Warm-up time	When the power is turned ON: 6 minutes, 30 seconds or less Low power mode: 6 minutes, 30 seconds or less Energy save mode: 3 minutes, 20 seconds or less
First copy time	Full Color mode: 34 seconds Black mode: 18 seconds (Letter; direct copying (100%)/Automatic Paper Selection/no pre-scan/left output tray selected)
Copy speed	Full Color mode: Letter (A4); 6 copies per minute (cpm) 279.4 x 431.8 mm (11 x 17 inches) (A3); 3 cpm Black mode: Letter (A4); 24 cpm 279.4 x 431.8 mm (11 x 17 inches) (A3); 12 cpm
Feature	Specification
Magnification	Direct (100%): 1: 1.000 Reduction: 1: 0.250 1: 0.500 279.4 x 431.8 mm (11 x 17 inches); (A3) - Executive (A5) 1: 0.640 279.4 x 431.8 mm (11 x 17 inches); (A3) - Letter (A4) 1: 0.730 279.4 x 431.8 mm (11 x 17 inches); (A3) - Legal (A3) 1: 0.780 Legal (A3) - Letter (A4) Enlargement 1: 1.210 Legal (A3) - 11 x 17 inches (279.4 x 431.8 mm) (A3) 1: 1.290 Letter (A4) - 11 x 17 inches (279.4 x 431.8 mm) (A3) 1: 2.000 Executive (A5) - 279.4 x 431.8 mm (11 x 17 inches (A3) 1: 4.000 Zoom 1: 0.250 1: 4.000
Paper feeding system	2 trays (500 sheets x 2): 75 grams per square meter (20 pounds) bond Tray 1 (100 sheets; stack approximately .05 inches: 10< mm high) 75 grams per square meter (20 pounds) bond NOTE: Tray 2 is not included with all models.
Multiple copies	Max. 100
Power source	120 V, 60 Hz
Max. power consumption	Less than 1.5 kW
Dimensions (Height x Width x Depth)	1,074 x 650 x 781 mm (42.25 x 25.1 x 30.75 inches) Copy module only: 199 x 650 x 781 mm (7.1 x 25.1 x 30.75 inches)
Installation Space (Width x Depth):	1,207 x 781 mm (47.5 x 30.75 inches)
Weight	Approximately 158 kilograms (kg) (348 pounds) Copy module only (including the power plug, power relay cord, and the copy module cover): Approximately 39 kg (85.9 pounds)

ADF specifications (8550 MFP)

Avoid some media jams by staying within the specifications for the optional ADF. Exceeding the specifications listed below may lead to media jams:

Media	Specification
Originals	Sheet originals: 50 to 105 grams per square meter (5 to 27 pounds) bond Executive/A5- to 11 x 17 (279.x 431.8 mm) inches/A3-size
Maximum power consumption	170 W
Input tray capacity	11 x 17 inches (279.4 x 431.8 mm)/Legal/A3: Up to 25 sheets (75 grams per square meter (20 pounds) bond) Letter/A4/Executive: Up to 50 sheets (75 grams per square meter (20 pounds) bond)
Document processing speed	24 cpm
Power source	24 V (from the printer unit)
Dimensions (Height x Weight x Depth):	161 x 684 x 527 mm (6.1 x 27 x 20.75 inches), excluding the original output bin
Weight	Approximately 14.8 kg (32.6 pounds)

*These specifications are subject to change without notice.

Dimensions (H x W x D)

Printer	Specification
HP Color LaserJet 8550 and 8550n	1060 x 668 x 714 mm (41.7 x 26.3 x 28.1 inches)
HP Color LaserJet 8550dn and 8550gn	1238 x 659 x 687 mm (48.7 x 25.9 x 27 inches)

Weight

Printer	Specification
HP Color LaserJet 8550 and 8550n	101 kilogram (kg) (223 pounds)
HP Color LaserJet 8550dn and 8550gn	122 kg (270 pounds)

Warranty

HP product	Duration of warranty
HP Color LaserJet 8500, 8550n, 8550dn, 8550gn, printers	One-year, on-site