2
Main Unit
(continued)
Image Reader Unit
Scan Resolution
Up to 600 x 600 dpi†
Acceptable Originals
(Glass)
Sheet, Book, 3-Dimensional objects [up to 4.4 lb. (2kg)]
Maximum Original Size
Up to 11" x 17"
Document Feeder
Scan Method
Duplexing Automatic Document Feeder
(Standard on 4251/4245)
(Optional on 4235/4225)
Acceptable Originals
Paper Sizes:
11" x 17", Legal, Letter, Letter-R, Statement
Paper
Weights:
BW: 11 lb. Bond to 34 lb. Bond (42 to 128g/m
2
)
Solid Black Text/Color: 17 lb. Bond to 34 lb. Bond
(64 to 128g/m
2
)
Scan Speed
(BW/Color; Letter)
Simplex:
51/51 ipm (300 dpi)
51/30 ipm (600 dpi)†
Paper Capacity
(20 lb. Bond)
100 Sheets
Copy Specifications
First-Copy-Out Time
(Letter)
4251:
As fast as 3.7 Seconds
4245/4235:
As fast as 3.8 Seconds
4225:
As fast as 5.2 Seconds
Multiple Copies
1 to 999
Copy Exposure
Automatic or Manual (9 Levels)
Magnification
From Platen
Glass:
25% - 400% (1% increments)
From ADF:
25% - 200% (1% increments)
Preset Reductions
25%, 50%, 64%, 73%, 78%
Preset Enlargements
121%, 129%, 200%, 400%
Basic Copy Features
Preset R/E Ratios by Area, Finishing, Two-sided, Density/
Exposure Adjustment, Original Type Selection, Interrupt Mode,
Sample Set, Setting Confirmation/Cancel, Standard Keys, Reset,
Guide Display, Job Duration Display, Reserved Copying
Special Copy Features
Two-page Separation, Cover/Sheet Insertion, Booklet,
Transparency Interleaving, Shift, Margin, Frame Erase, ID Card
Copy, Image Combination, Different Size Original, Job Build,
Job Done Notice, Scan Image Check, Mode Memory, Recall,
Negative/ Positive Inversion, Image Repeat, Mirror Image,
Sharpness, Tab Paper Creation, Form Composition, Secure
Watermark, Page Numbering, Copy Set Numbering, Watermark
and Date, Job Block Combination, Store in User Inbox
Universal Send Specifications
Sending Method
E-Mail, I-Fax, File Server (FTP, SMB, WebDAV), Mail Box,
Super G3 Fax (Optional), IP Fax (VoIP) (Optional)
Color Mode
Auto Color Select (Color, Gray), Auto Color Select (Color, Black),
Full Color, Grayscale, BW
Scan Resolution
(dpi)†
600 x 600 dpi, 400 x 400 dpi, 300 x 300 dpi, 200 x 400 dpi,
200 x 200 dpi, 200 x 100 dpi, 150 x 150 dpi, 100 x 100 dpi
Address Book Capacity
Max. 1,800 Destinations (Incl. 200 One-Touch Buttons)
Communication Protocol
File:
FTP (TCP/IP), SMB (TCP/IP), WebDAV
E-mail/I-Fax: SMTP, POP3, I-FAX (Simple, Full)
File Format
Standard:
TIFF, JPEG, PDF, PDF/XPS (Compact), PDF (Apply
Policy), PDF (Optimize for Web), PDF/A-1b, XPS,
PDF/XPS (OCR), OOXML (.pptx)
Optional:
PDF (Trace & Smooth), PDF (Encrypted),
PDF/XPS (Digital Signature)
I-Fax Data Format
BW:
TIFF (MH, MR, MMR)
Universal Send Features
Two-sided Original, Different-size Originals, Original Type
Selection, Book to Two Pages, Density Adjustment, Sharpness,
Document Name, Copy Ratio, Erase Frame, Job Build, Delayed
Send, Preview, Finished Stamp, Job Done Notice, File Name,
Subject/Message, Reply-to, Sender's Name (TTI), E-Mail Priority,
Scan Recovery for Misfeeds
Fax Specifications
Maximum Number of Connection Lines
4
Modem Speed
Super G3:
33.6 Kbps
G3:
14.4 Kbps
Compression Method
MH, MR, MMR, JBIG
Resolution
400 x 400 dpi, 200 x 400 dpi, 200 x 200 dpi, 200 x 100 dpi
Sending/Recording Size
Statement to 11" x 17"
Fax Features
Job Forwarding, Different-size Originals, Adjusting Overall
Density for Scanning, Sharpness, Copy Ratio, Erase Frame,
Job Build, Specifying the Sender's Name (when sending fax),
Selecting the Telephone Line (when sending fax), Delayed
Send, Preview, Finished Stamp, Job Done Notice, Original Type
Selection, Two-sided Original, Book to Two Pages
Print Specifications
Processor
Canon Dual Custom Processor (Shared)
Memory
Standard:
1.25GB RAM
Maximum:
1.75GB RAM
Hard Disk Drive
Standard:
160GB
Maximum:
1TB
Engine Resolution
1200 x 1200 dpi
PDL Support
Standard:
UFR II
Optional:
PCL 5e, PCL 6, Adobe PS 3
Print Driver Supported OS
UFR II, PCL 5e/6, Adobe PS 3:
Windows® (Windows XP/Windows Vista®/Windows 7/Server
2003/Server 2008/Server 2008 R2/Windows 8/Server 2012/
Small Business Server 2011), Windows Terminal Servers (Server
2003/Server 2008/Server 2008 R2/Server 2012), Small Business
Server 2011, Windows Clustering Server (Windows Server 2003/
Server 2008/Server 2008 R2/Server 2012), Citrix (Presentation
Server 4.5, XenApp 5.0/6.0/6.5, XenDesktop 4.0/5.0/5.5/6),
Macintosh® (OSX 10.5.8 or later, UFR II and PS 3 Only), VMware
(vSphere 4/5/5.1), SAP (PS and PCL Only)
Direct Print Support
Standard:
TIFF, JPEG
Optional:
PDF, EPS††, XPS†††
Print Features
Suspend Job Timeout, Subset Finishing (PS only), Profile
Settings, Secured Print, Watermark, Page Border, Header/Footer,
Page Layout, Two-sided Printing, Collating, Booklet Printing,
Grouping, Mixed Paper Sizes/Orientations, Printing
on Transparencies, Front/Back Covers, Objective, Toner
Reduction, Poster Printing
Scan Specifications
Network TWAIN Scan
Standard
Network Scan Utility
Color Network ScanGear