Konica Minolta bizhub C651i/C551i/C451i A3 Colour Multifunctional Printers
The Konica Minolta bizhub C651i, C551i and C451i are next-generation A3 colour multifunctional printers designed for modern, connected workplaces. Built on the bizhub i-Series platform, they combine fast colour output, powerful scanning, strong security and easy cloud integration in one smart device.
Product line at a glance:
- bizhub C651i – high-volume 65 ppm colour MFP for busy departments.
- bizhub C551i – 55 ppm model for demanding workgroups and offices.
- bizhub C451i – 45 ppm model ideal for mid-sized teams and branch sites.
All three models share the same 10.1" touchscreen interface, unified driver platform, advanced security and mobile-first connectivity, making it easy to standardise across your fleet.
What are the Konica Minolta bizhub C651i/C551i/C451i?
The bizhub C651i/C551i/C451i series are A3 colour multifunctional printers that consolidate print, copy, scan and optional fax into a single, secure hub. They are designed to handle everything from everyday office documents to marketing collateral, with flexible paper handling and professional finishing options.
Core functions and capabilities
- High-speed colour and mono printing at 65/55/45 pages per minute (A4).
- Integrated scanner with single-pass duplex document feeder.
- Optional fax, secure scan-to-email, scan-to-folder and scan-to-cloud workflows.
- Unified bizhub i-Series controller for consistent operation across models.
How do bizhub C651i/C551i/C451i make everyday use easier?
These models focus on a familiar, smartphone-like user experience so staff can get more done with fewer clicks and less training. The large colour panel puts the most-used features front and centre and can be tailored to individual users or departments.
User-friendly interface
- 10.1" multi-touch panel with swipe, tap and pinch gestures.
- Customisable home screen with one-touch buttons for frequent jobs like “Scan to Me” or “Secure Print”.
- Clear status indicator lights showing power, data activity and error states from across the room.
- Panel tilt adjustment up to around 90° to improve visibility and accessibility.
- On-screen guidance and simple wizards for complex tasks such as booklet making or scan routing.
How fast and powerful are the bizhub C651i/C551i/C451i?
The series is engineered to keep up with demanding office environments, delivering fast first-page-out times, efficient media handling and reliable performance across long print runs.
Print and copy performance
- Print speeds up to approximately 65 ppm (C651i), 55 ppm (C551i) and 45 ppm (C451i) in both colour and black-and-white.
- Quick warm-up and low first-copy times to minimise waiting at the device.
- High-quality output up to 1,200 dpi-class resolution for sharp text and vibrant graphics.
- Support for duplex printing as standard to save paper and reduce filing bulk.
What paper sizes and finishing options are supported?
The bizhub C651i, C551i and C451i are designed to handle a wide range of media types, from everyday office paper to heavier stocks for covers, brochures and reports.
Paper handling and capacity
- Standard paper capacity typically starting around 1,150 sheets (two trays plus bypass).
- Expandable paper capacity up to around 6,650 sheets with optional paper cabinets and large-capacity trays.
- Media support from A6 up to SRA3, plus custom sizes and banner printing (up to approximately 1,200 mm length) via bypass tray and banner guides.
- Paper weights ranging from light office stock up to heavy media suitable for covers and simple card applications.
Finishing options
- Inner finisher for compact stapling and sorting without increasing the device footprint too much.
- External staple finishers with corner and edge stapling for larger sets.
- Booklet finishers with saddle-stitch and centre fold for in-house production of brochures and booklets.
- Optional hole punch, Z-fold and tri-fold units for more advanced presentation documents.
How do these MFPs handle scanning and digital workflows?
The bizhub C651i/C551i/C451i series is built to support digital transformation, with fast scanning and intelligent automation to route documents where they need to go.
Scanning features
- High-speed single-pass duplex document feeder (DSDF) with large sheet capacity.
- Scan speeds of up to around 280 images per minute (duplex), ideal for bulk archiving and digital mailroom use.
- Automatic blank-page removal, deskew and size detection to tidy up scanned documents.
- Scan to email, SMB, FTP, WebDAV, USB, and user boxes, with presets and address books.
- Optional OCR and document conversion for searchable PDFs and editable Word/Excel formats.
Fax and hybrid workflows
- Optional Super G3 fax, IP fax and internet fax for environments that still rely on faxing.
- Fax routing rules that can forward incoming faxes to email or network folders, reducing paper use.
- “Scan & fax” combinations for hybrid paper–digital workflows.
How do the bizhub C651i/C551i/C451i protect data and documents?
Security is a core part of the i-Series design. The bizhub C651i family includes multiple layers of protection, from user authentication at the panel to encrypted storage and network security features.
Device & data security
- Encrypted solid-state storage (SSD) to protect data at rest.
- Automatic deletion and overwrite of temporary job data after completion.
- Secure print with PIN or authentication release so confidential jobs do not sit on the output tray unattended.
- Optional embedded antivirus to scan data passing through the device and stored on the SSD.
User authentication & access control
- Login via username/password, card readers (IC card, NFC) or optional biometric authentication.
- Function-level restrictions so administrators can limit copy, print, scan or fax access per user or group.
- Integration with directory services for single sign-on and centralised account management.
Network & document security
- Support for secure network protocols (HTTPS, SSL/TLS, IPsec, 802.1X).
- Optional serverless pull printing so users can release print jobs securely at any authorised device.
- Security watermarking and copy protection features to discourage unauthorised duplication.
How do these models support mobile and cloud printing?
The bizhub C651i series is designed for hybrid and flexible workstyles, offering direct support for smartphones, tablets and popular cloud services.
Mobile connectivity
- Support for Apple AirPrint and Mopria Print Service for driverless mobile printing.
- Konica Minolta Mobile Print app for iOS and Android, enabling print, scan and authentication from mobile devices.
- NFC and Bluetooth LE support on selected configurations for easy device pairing and login.
- Optional Wi-Fi and Wi-Fi Direct modules for locations where wired LAN is limited.
Cloud and remote services
- Connectors for services such as SharePoint Online, OneDrive, Google Drive and other cloud repositories.
- Scan directly into cloud folders, with automatic naming and folder selection to standardise workflows.
- Remote monitoring and diagnostics capabilities to help service providers resolve issues quickly and proactively.
How environmentally friendly are the bizhub C651i/C551i/C451i?
Sustainability is another key pillar of the bizhub i-Series design. These devices are built to reduce energy consumption, minimise waste and support greener office practices.
Eco features
- Low power consumption with optimised sleep modes and quick recovery.
- Polymerised toner technology designed for lower fusing temperatures and reduced CO � emissions.
- Use of recycled and bioplastic components in selected outer parts.
- Duplex printing as standard, plus eco-timers and usage reports to encourage best practice.
bizhub C651i/C551i/C451i key specifications
| Model | Print speed (A4) | Functionality | Max paper capacity | Recommended use |
|---|---|---|---|---|
| bizhub C651i | Up to 65 ppm (colour/B&W) | Print / Copy / Scan / Fax (option) | Up to ~6,650 sheets with options | High-volume departments and centralised print rooms |
| bizhub C551i | Up to 55 ppm (colour/B&W) | Print / Copy / Scan / Fax (option) | Up to ~6,650 sheets with options | Busy office workgroups and shared MFP environments |
| bizhub C451i | Up to 45 ppm (colour/B&W) | Print / Copy / Scan / Fax (option) | Up to ~6,650 sheets with options | Mid-sized teams, branch offices and satellite sites |
Note: Exact specifications (memory, controller options, supported formats and finishing limits) may vary by configuration. Always refer to the official Konica Minolta datasheet for full technical details.
Frequently asked questions about bizhub C651i/C551i/C451i
Conclusion: Why choose bizhub C651i/C551i/C451i for your office?
In summary, the Konica Minolta bizhub C651i/C551i/C451i A3 Colour Multifunctional Printers deliver a powerful combination of speed, colour quality, ease of use and security. They help consolidate print, copy, scan and fax into a single, intelligent platform that fits seamlessly into modern hybrid workplaces.
By standardising on the bizhub i-Series colour range, organisations can simplify device management, give staff a consistent user experience and support digital transformation with fast scanning, cloud connectivity and robust security features.
