Canon imageRUNNER ADVANCE 4551i Service Manual page 49

Item
Magnification ratio 25% to 400%
Horizontal scanning direction
Vertical scanning direction
Number of lines of the 4 lines (R, G, B, B/W)
Reading Sensor
Original size detection Horizontal scanning direction
Vertical scanning direction
Maximum document At copyboard reading
size
When using the ADF
● ADF
Single pass ADF
Item
Document pickup Automatic pickup/delivery method
method
Original Type Sheet document
Original basis weight 1-sided
2-sided
50 to 157 g/m2
Color original
64 to 157 g/m2
Original size A3, A4, A4R, A5, A5R, B4, B5, B5R, B6R, LDR, LGL, LTR, LTRR,
STMT, STMTR, 8K, 16K, 16KR
Feed direction
139.7 to 432 mm (STMT to 17 inch) *432 to 630 mm originals
can also be read (see the note).
Width direction
128 to 304.8 mm (B6R to 12 inch)
Original setting direc- Pickup from the Original Tray: Face up
tion
Original setting posi- Pickup from the Original Tray: Center reference
tion
Document scanning Stream reading
method
Original separation Drive-free retard separation
method
Original feed mode 1-sided, 2-sided (simultaneous)
Specification/Function
Image processing by the Main Controller PCB
Image processing by the Main Controller PCB
Detection by the Reading Sensor (Scanner Unit)
Detection by the Reflection Sensor (Original Size
Sensor 1 (AB configuration) or Original Size Sen-
sor 2 (Inch configuration))
297 mm x 431.8 mm
304.8 mm x 630 mm
Specifications
• A/B: 38 to 157 g/m2
• Inch: 50 to 157 g/m2
Black & White: Scan magnification (skipping of 2 ver-
tical lines: 25% to 50%)
Color: Digital variable magnification
Horizontal scanning direction
-
Vertical scanning direction
Partially processed by the Reader Controller
PCB
-
-
-
Simultaneous duplex reading
-
1-sided
• B6 paper can only be fed with landscape
• Since originals that are 432 to 630 mm
-
-
Simultaneous duplex reading can only be
performed on originals that are 432 mm or
smaller
-
-
36
2. Technology
Remarks
Remarks
• A/B: For originals 38 g/m2 or more
and less than 42 g/m2, width 257
mm (B5 size) or more and 1-sided
single sheet delivery
• A/B: For originals exceeding 432
mm,
1-sided single sheet feed:
60 to 90 g/m2
orientation
in the feed direction are larger than the
Document Pickup Tray, they can be
read while being held by the user.