| Product specifications |   |   | Lexmark C540 Series | 
|   |   |   |   |   |   |   |   | 
|   | Lexmark C540n | Lexmark C543dn | Lexmark C544n | Lexmark C546dtn | 
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| Printing |   |   |   |   |   |   |   | 
| Print Technology |   |   | Color Laser |   | 
| Print Speed (Letter, Black): Up to |   |   |   |   |   |   |   | 
| 21 ppm |   | 21 ppm |   | 25 ppm |   | 25 ppm | 
| Print Speed (Letter, Color): Up to | 21 ppm |   | 21 ppm |   | 25 ppm |   | 25 ppm | 
| Time to First Page (Black) | As fast as 12 seconds |   | As fast as 12 seconds |   | As fast as 11 seconds |   | As fast as 11 seconds | 
| Time to First Page (Color) | As fast as 13 seconds |   | As fast as 13 seconds |   | As fast as 12 seconds |   | As fast as 12 seconds | 
| Print Resolution, Black |   |   | 1200 x 1200 dpi, 4800 Color Quality (1200 x 600 dpi) |   | 
| Print Resolution, Color |   |   | 1200 x 1200 dpi, 4800 Color Quality (1200 x 600 dpi) |   | 
| Memory, Standard |   |   |   |   |   |   |   | 
| 128 MB |   | 128 MB |   | 128 MB |   | 256 MB | 
| Memory, Maximum | 640 MB |   | 640 MB |   | 640 MB |   | 640MB (Replacement required) | 
| Print Noise Level, Operating | 47 dBA |   | 47 dBA |   | 49 dBA |   | 49 dBA | 
| Noise Level, Idle |   |   | inaudible dBA |   | 
| Maximum Monthly Duty Cycle: Up to |   |   |   |   |   |   |   | 
| 35,000 pages per month |   | 35,000 pages per month |   | 55,000 pages per month |   | 55,000 pages per month | 
| Recommended Monthly Page Volume | 500 - 1,500 pages |   | 500 - 1,500 pages |   | 800 - 3,000 pages |   | 1,000 - 4,000 pages | 
|   |   |   |   |   |   |   |   | 
| Supplies |   |   |   |   |   |   |   | 
| Supplies Yield | 1,000*-page color Toner Cartridges |   | 1,000*-page color Toner Cartridges |   | 1,000*-page color Toner Cartridges |   | 1,000*-page color Toner Cartridges | 
| (*Average continuous black or continuous | (CMY), 2,000*-page color High Yield |   | (CMY), 2,000*-page color High Yield |   | (CMY), 2,000*-page color High Yield |   | (CMY), 2,000*-page color High Yield | 
| composite CMY declared cartridge yield up to | Toner Cartridges (CMY), 2,500*-page |   | Toner Cartridges (CMY), 2,500*-page |   | Toner Cartridges (CMY), 4,000*-page |   | Toner Cartridges (CMY), 4,000*-page | 
| this number of standard pages in accordance | Black High Yield Toner Cartridge, 1,000*- |   | Black High Yield Toner Cartridge, 1,000*- |   | color Extra High Yield Toner Cartridges |   | color Extra High Yield Toner Cartridges | 
| with ISO/IEC 19798.) | page Black Toner Cartridge |   | page Black Toner Cartridge |   | (CMY), 2,500*-page Black High Yield |   | (CMY), 2,500*-page Black High Yield | 
|   |   |   |   |   | Toner Cartridge, 6,000*-page Black Extra |   | Toner Cartridge, 1,000*-page Black Toner | 
|   |   |   |   |   | High Yield Toner Cartridge, 1,000*-page |   | Cartridge, 8,000*-page Black Extra High | 
|   |   |   |   |   | Black Toner Cartridge |   | Yield Toner Cartridge | 
|   |   |   |   |   |   |   |   | 
| Cartridge(s) Shipping with Product | 1,000*-page Black Return Program Toner |   | 2,500*-page Black Return Program Toner |   | 2,500*-page Black Return Program Toner |   | 4,000*-page Black starter Return | 
|   | Cartridge, 1,000*-page color (CMY) |   | Cartridge, 2,000*-page color (CMY) |   | Cartridge, 2,000*-page color (CMY) |   | Program Toner Cartridge, 4,000*-page | 
|   | Return Program Toner Cartridges |   | Return Program Toner Cartridges |   | Return Program Toner Cartridges |   | Color (CMY) Extra High Yield Return | 
|   |   |   |   |   |   |   | Program Toner Cartridges | 
|   |   |   |   |   |   |   |   | 
| Paper Handling |   |   |   |   |   |   |   | 
| Paper Handling Standard | 100-Sheet Output Bin, Single Sheet |   | 100-Sheet Output Bin, Integrated Duplex, |   | 100-Sheet Output Bin, Single Sheet |   | 100-Sheet Output Bin, Integrated Duplex, | 
|   | Manual Feed, 250-Sheet Input Tray |   | Single Sheet Manual Feed, 250-Sheet |   | Manual Feed, 250-Sheet Input Tray |   | Single Sheet Manual Feed, 250-Sheet | 
|   |   |   | Input Tray |   |   |   | Input Tray, 550-Sheet Duo Drawer with | 
|   |   |   |   |   |   |   | 100-Sheet Feeder | 
|   |   |   |   |   |   |   |   | 
| Paper Handling Optional | 550-Sheet Duo Drawer with 100-Sheet |   | 550-Sheet Duo Drawer with 100-Sheet |   | 550-Sheet Duo Drawer with 100-Sheet |   | 550-Sheet Drawer | 
|   | Multipurpose Feeder |   | Multipurpose Feeder |   | Multipurpose Feeder |   |   | 
| Paper Input Capacity, Standard: Up to | 250+1 pages 20 lb or 75 gsm bond |   | 250+1 pages 20 lb or 75 gsm bond |   | 250+1 pages 20 lb or 75 gsm bond |   | 900+1 pages 20 lb or 75 gsm bond | 
| Paper Input Capacity, Maximum: Up to | 900 +1 pages 20 lb or 75 gsm bond |   | 900 +1 pages 20 lb or 75 gsm bond |   | 900 +1 pages 20 lb or 75 gsm bond |   | 1,450+1 pages 20 lb or 75 gsm bond | 
| Paper Output Capacity, Standard: Up to |   |   | 100 pages 20 lb or 75 gsm bond |   | 
| Paper Output Capacity, Maximum: Up to |   |   | 100 pages 20 lb or 75 gsm bond |   | 
| Media Types Supported |   |   |   |   |   |   |   | 
| Card Stock, Paper Labels, Plain Paper, |   | Card Stock, Paper Labels, Plain Paper, |   | Card Stock, Paper Labels, Plain Paper, |   | Card Stock, Envelopes, Paper Labels, | 
|   | Transparencies, Refer to the Card Stock |   | Transparencies, Refer to the Card Stock |   | Transparencies, Refer to the Card Stock |   | Plain Paper, Transparencies, Refer to the | 
|   | & Label Guide |   | & Label Guide |   | & Label Guide |   | Card Stock & Label Guide | 
| Media Sizes Supported | A4, A5, Executive, Folio, JIS-B5, Legal, |   | A4, A5, Executive, Folio, JIS-B5, Legal, |   | A4, A5, Executive, Folio, JIS-B5, Legal, |   | 10 Envelope, 7 3/4 Envelope, 9 | 
|   | Letter, Universal, Oficio, A6 |   | Letter, Universal, Oficio, A6 |   | Letter, Universal, Oficio, A6 |   | Envelope, A4, A5, B5 Envelope, C5 | 
|   |   |   |   |   |   |   | Envelope, DL Envelope, Executive, | 
|   |   |   |   |   |   |   | Folio, JIS-B5, Legal, Letter, Statement, | 
|   |   |   |   |   |   |   | Universal, Oficio, A6 | 
|   |   |   |   |   |   |   |   | 
| Compatibility |   |   |   |   |   |   |   | 
| Network Protocol Support | TCP/IP IPv4, TCP/IP IPv6, TCP, UDP |   | TCP/IP IPv4, TCP/IP IPv6, TCP, UDP |   | TCP/IP IPv4, AppleTalk™, TCP/IP IPv6, |   | TCP/IP IPv4, AppleTalk™, TCP/IP IPv6, | 
|   |   |   |   |   | TCP, UDP |   | TCP, UDP | 
|   |   |   |   |   |   |   |   | 
| Printer Languages (Standard) | PCL 5c Emulation, PCL 6 Emulation, |   | PCL 5c Emulation, PCL 6 Emulation, |   | PCL 5c Emulation, PCL 6 Emulation, |   | PCL 5c Emulation, PCL 6 Emulation, | 
|   | PostScript 3 Emulation |   | PostScript 3 Emulation |   | Personal Printer Data Stream (PPDS), |   | Personal Printer Data Stream (PPDS), | 
|   |   |   |   |   | PostScript 3 Emulation, PDF 1.6, Direct |   | PostScript 3 Emulation, PDF 1.6, Direct | 
|   |   |   |   |   | Image |   | Image | 
|   |   |   |   |   |   |   |   | 
| Standard Ports | Ethernet 10/100BaseTX (RJ-45), USB |   | Ethernet 10/100BaseTX (RJ-45), USB |   | Ethernet 10/100BaseTX (RJ-45), USB |   | Ethernet 10/100BaseTX (RJ-45), USB | 
|   | 2.0 Specification Hi-Speed Certified |   | 2.0 Specification Hi-Speed Certified |   | 2.0 Specification Hi-Speed Certified |   | 2.0 Specification Hi-Speed Certified | 
|   | (Type B) |   | (Type B) |   | (Type B), PictBridge Certified Port, Front |   | (Type B), PictBridge Certified Port, Front | 
|   |   |   |   |   | USB Port Compatible with USB 2.0 |   | USB Port Compatible with USB 2.0 | 
|   |   |   |   |   | Specification (Type A) |   | Specification (Type A) | 
|   |   |   |   |   | 
| Microsoft Windows Operating Systems | 2000, XP, Server 2003, XP x64, Server 2003 running Terminal Services, 2000 Server running Terminal Services, Server 2003 x64, Server 2003 x64 running Terminal Services, | 
| Supported | Vista, Vista x64, Server 2008, Server 2008 x64, Server 2008 running Terminal Services, Server 2008 x64 running Terminal Services, Windows 7 | 
|   |   |   |   |   | 
| Apple Macintosh Operating Systems |   |   | Mac OS X, Mac OS 9.2 |   | 
| Supported |   |   |   |   |   |   |   | 
|   |   |   |   |   |   |   |   | 
| General |   |   |   |   |   |   |   | 
| Product Warranty | 1-Year Exchange Service, Next Business |   | 1-Year Exchange Service, Next Business |   | 1-Year Exchange Service, Next Business |   | 1-Year Onsite Service, Next Business | 
|   | Day |   | Day |   | Day |   | Day | 
|   |   |   |   |   |   |   | 
| Product Certifications |   |   | www.lexmark.com |   | 
| Size (in. - H x W x D) |   |   |   |   |   |   |   | 
| 11.5 x 16.7 x 15.7 in. |   | 11.5 x 16.7 x 15.7 in. |   | 11.5 x 16.7 x 15.7 in. |   | 16.6 x 16.7 x 16.4 in. | 
| Weight (lb.) | 46.2 lb. |   | 46.2 lb. |   | 46.2 lb. |   | 54.9 lb. | 
| Specified Operating Environment | Temperature: 16 to 32°C (60 to 90°F), Humidity: 8 to 80% Relative Humidity, Altitude: 0 - 3048 Meters (10,000 Feet) |