Meet the small color printer that makes no compromises in cost-effectiveness, productivity, or efficiency. The C651 model, designed with OKI Space Saving Technology, is the world's smallest high-performance color printer. It offers the speed, support for various media types, and economical operation you expect from a workgroup device – all in a compact and robust desktop design.
Print resolution: 600 × 600 dpi, 1200 × 1200 dpi
Warm-up time: Approximately 20.0 seconds from power on / Approximately 11.0 seconds from sleep mode
Time to first print: Approximately 6.5 seconds in color / Approximately 6.5 seconds in black and white
Print speed: A4 35 ppm/min color, 35 pages./min black and white
Interface:
1000BASE-T/100BASE-TX/10BASE-T
USB 2.0 (High Speed)
USB 2.0 (High Speed) Host
(Optional) Wireless LAN (IEEE802.11a/b/g/n/ac)
Protocol: TCP/IP
Printer language: PCL 6 (XL) emulation, PCL 5c emulation, Adobe PostScript 3, PDF v1.7 emulation, IBM ProPrinter emulation, Epson FX emulation
Supported operating systems: Windows 11, Windows 10, Windows 10 x64, Windows Server 2025, Windows Server 2022, Windows Server 2019, Windows Server 2016, macOS 15, macOS 14, macOS 13, macOS 12, iOS, Chrome OS, Linux, Android
Memory (standard/maximum): 1 GB / 1 GB
Paper formats: A4, A5, A6, B5, B6, B6 Half, B7, B8, Letter, Legal 13, Legal 13.5, Legal 14, Executive, Statement, 8.5" SQ, Folio, 16K, Index Card (3" x 5") (75 x 125 mm), Photo Size (4" x 6", 5" x 7") (100 x 150 mm, 125 x 175 mm), Envelopes, Postcard, Return postcard, Custom Size: Width 55-216 mm x Length 91-1321 mm
Paper weight:
Tray 1: 60–256 g/m2
Multipurpose tray: 60–256 g/m2
(Optional) Additional tray: 64–176 g/m2
Input capacity:
Tray 1: 250 sheets
Multipurpose tray: 100 sheets
(Optional) Additional tray: 530 sheets
Output capacity:
Face-down output: max. 150 sheets
Face-up output: max. 110 sheets
Dimensions (W × D × H): 395 × 430 × 290 mm
Weight (including consumables): Approximately 28.2 kg
Weight (excluding consumables): Approximately 24.6 kg
Power supply: Single-phase 220–240 V AC ±10%, 50/60 Hz ±3%
Power consumption:
Operation: max. 1,350 W / average 840 W
Idle: 20 W
Power-saving mode: 14.0 W
Deep sleep: 1.1 W
Automatic shutdown: 0.15 W
Noise level:
Operation: approximately 54 dBA
Idle: < 32 dBA
Quiet mode: < 51 dBA
Power-saving mode: ambient noise level
Monthly duty cycle: Recommended: 8,000 pages/month
Monthly duty cycle: Maximum: 100,000 pages/month
Package contents:
Manuals
Starter toner cartridge × 4
Drum unit × 4
Power cable
DVD-ROM