Scanning Features - Ricoh A230 Service Manual

2.2

SCANNING FEATURES

2.2.1 SUB-SCAN LENGTH CORRECTION USING ADF
The ADF informs the FCU of the original length. If the length data is incorrect or the
original is skewed, the machine corrects the sub-scan length to a standard paper
length.
The correction algorithm is follows.
Before sub-scan length
correction
Under 135mm
136mm – 157mm
158mm – 192mm
193mm – 223mm
267mm – 287mm
288mm – 307mm
355mm – 374mm
410mm – 425mm
Over 426mm
Note: Depends on the settings of scanner switch 0C bit 6
Length Correction Enabled (Default setting)
Original on DF
2 2 3 m m
210 mm or 8.5"
R
Scan direction
on exposure glass
When this feature is enabled, in the above example, the gray part of the original is
not scanned. However this allows the machine to rotate the image before
transmission in order to avoid unintentional reduction.
SM
After sub-scan length correction
128mm (B6 short edge length)
148mm (A5 short edge length)
182mm (B6 long edge length)
210mm (A4 short edge length)
216mm (LT short edge length)
See the note below the table.
279mm (LT long edge length)
297mm (A4 long edge length)
364mm (B4 long edge length)
420mm (A3 long edge length)
432mm (DLT long edge length)
Transmitted Image
297 mm or 11"
P a g e
Bottom
2-5
SCANNING FEATURES
P a g e
T o p
A693D524.WMF
A230/A231/A232