Energy Management
Power consumption (off)
0.3 W
Power consumption (PowerSave)
9 W
Input Capacity
Standard input capacity
350 sheets
Maximum input capacity
850 sheets
Additional paper trays
HP Color LaserJet 3550: Optional 500-sheet paper tray, HP Color LaserJet 3550n: Optional 500-sheet paper tray
Media Formats
Standard media sizes
A4, A5, B5 (ISO), B5 (JIS), executive (JIS), envelopes (DL, C5, B5)
Media size (tray 3)
A4, Letter
Media size (tray 2)
A4, Letter, Legal, Executive, A5, B5 (JIS/ISO)
Custom media sizes
Tray 1: 76 x 127 to 216 x 356 mm; Tray 2: 148 x 210 to 216 x 356 mm; optional Tray 3: 215 x 279 and 210 x 296 mm
Media Types
Media type and capacity, tray 2
250 sheets
Media type and capacity, tray 3
500 sheets
Media Weight
Media weight (tray 2)
60 to 105 g/m²
Media weight (tray 3)
60 to 105 g/m²
Recommended media weight
Tray 1: 60 to 163 g/m2; Tray 2, optional Tray 3: 60 to 105 g/m2 g/m²
Memory
Internal memory
64 MB
Memory upgrade
No
Operational Conditions
Storage temperature range (T-T)
0 - 35 °C
Operating temperature range (T-T)
10 - 27 °C
Operating relative humidity range
10 - 70 %
Non-operating relative humidity (non-condensing)
10 - 90 %
Recommended operating temperature range (T-T)
17 - 25 °C
Output Capacity
Standard output capacity for envelopes
10 sheets
Maximum output capacity
175 sheets
Standard output capacity
175 sheets
Paper Handling
Maximum paper trays
3
Paper handling standard/input
100-sheet input (Tray 1), 250-sheet input (Tray 2)
Paper handling standard/output
150-sheet (top) output bin, 25-sheet (straight-through) rear bin
Media weight (tray 1)
60 to 216 g/m²
Media size (tray 1)
76 x 127 mm to 216 x 356 mm
Duplex print options
Manual (driver support provided)
Paper handling optional/input
Optional 500-sheet input (Tray 3)
Media types supported
Paper (plain, letterhead, prepunched, preprinted, recycled, glossy), tough media, transparencies, envelopes, labels and cardstock.
Paper handling
Standard: 250-sheet input tray, 100-sheet multipurpose tray, 25-sheet straight-through paper path; Optional: 500-sheet input tray
Performance
Maximum duty cycle
45000 pages per month
Ports & interfaces
I/O ports
1 Hi-Speed USB (compatible with USB 2.0 specifications)
Optional connectivity
HP Jetdirect en3700 external print servers (standard with HP CLJ 3550n)
Print Quality
Maximum resolution
600 x 600 DPI
Print quality (black, best quality)
600 x 600 DPI
Print technology
Laser
Color
Yes
Network ready
Yes
Print Technology
Print margin bottom (A4)
0.197 " (5 mm)
Print margin left (A4)
0.197 " (5 mm)
Print margin right (A4)
0.197 " (5 mm)
Print margin top (A4)
0.197 " (5 mm)
Print technology resolution
600 x 600 DPI
Typefaces
Based on installed typefaces on host computer. Fonts for internal pages and ASCII.
Color printing technology
HP Imageret 2400, automatic trapping, adaptive halftoning
Standard printer languages
HP JetReady 4.1, host-based (Microsoft® Windows® and Macintosh)
Printing
Print speed (black, best quality, A4)
16 ppm
Print speed (black, draft quality, A4/US Letter)
16 ppm
Print speed (black, normal quality, A4/US Letter)
16 ppm
Print speed (color, best quality, A4)
16 ppm
Print speed (color, draft quality, A4/US Letter)
16 ppm
Print speed (color, normal quality, A4/US Letter)
16 ppm
Print speed (color, normal quality, A4, transparency)
2 ppm
Time to first page (black, normal)
22 s
Time to first page (footnote)
Instant-on technology for virtually no warm-up time - from ready and power save mode.
Processor
Processor clock speed
266 MHz
Built-in processor
MIPS RISC
Security
Safety
IEC 60950:1999/EN60950: 2000IEC 60825-1: 1993 + A1 +A2/EN 60825-1: 1994 + A11 +A2 (Class 1 Laser Product) GB4943-1995
Security management
Password-protected configuration, Secure Sockets Layer (SSL) and Simple Network Management Protocol (SNMP) v 3.0
Sound Emission
Acoustic power emissions
6.3 B(A) active, 4.7 B(A) standby
System Requirements
Minimum system requirements for Macintosh
Mac OS 9.1, 9.2 with 96 MB RAM; Mac OS X v 10.2 and later with 128 MB RAM; 220 MB of free hard disk space, Hi-Speed USB (compatible with USB 2.0 specifications) systems and cables
Minimum system requirements
Microsoft Windows 98, Me, 2000, XP: 333 MHz processor with 64 MB RAM; Microsoft Windows Server 2003: 550 MHz processor with 128 MB RAM (standard edition); 220 MB of free hard disk space, CD-ROM drive,
Mac compatibility
Yes
Technical Details
Standard input trays
2
Standard output capacity for transparancies
50 sheets
Electromagnetic compatibility
CISPR 22: 1997/EN 55022: 1998 Class B; EN 61000-3-2: 2000; EN 61000-3-3: 1995/A1:2001; EN 55024: 1998; FCC Title 47 CFR, Part 15 Class B; ICES-003, Issue 4; GB9254-1998, GB17625.1-2003; EMC Directive
Driver updates
For a list of printer drivers and updated HP printer software for all supported operating systems, go to www.hp.com
Technical features
Hi-Speed USB (compatible with USB 2.0 specifications) with standard network connectivity
Interface
Hi-Speed USB 2.0 port, HP Jetdirect en3700 External Print Server (connected via the Hi-Speed USB 2.0 port)
Networking features
HP Jetdirect en3700 external print server HP CLJ 3550: Optional via HP Jetdirect external print server
Printer management
HP Web Jetadmin, HP Color LaserJet 3550 Toolbox, HP Embedded Web Server, HP Printer Status and Alerts.
Power requirements
Input voltage 100 to 127 VAC (± 10%), 50/60 Hz (± 2 Hz), 5 amps; input voltage 220 to 240 VAC (± 10%), 50/60 Hz (± 2 Hz), 3 amps
Bundled software
JetReady 4.1 drivers for Microsoft Windows, driver management configuration for Microsoft Windows drivers, auto configuration for Microsoft Windows drivers, toolbox for Microsoft Windows and Mac, inst
Control panel
LCD panel with text and graphics; 3 LED status lights; buttons to "Cancel job", "Menu" and "Help"
Compatible operating systems
Microsoft Windows 98, 98 SE, Me, 2000, XP (32-bit)**, Windows Server 2003 (32-bit)**, Mac OS 9.1 and above, Mac OS X v 10.2 and above. For a list of printer drivers and updated HP printer software for
Weight & Dimensions
Dimensions (WxDxH)
19.7 x 17.6 x 18.4 inch (500 x 447 x 467 mm)
Package dimensions (WxDxH)
31.5 x 23.6 x 28.3 inch (800 x 600 x 718 mm)
Weight
32.5 kg
Package weight
46.7 kg