Chapter 2 How to Load Documents
53
Conditions for Mixed Batch Scanning
The following conditions apply when a mixed batch of
documents with different paper weights/friction coefficients/
sizes is scanned.
Make sure you test a few sheets first to check if the mixed
batch of documents can be fed.
For details, refer to
" Scanning Documents with Different
Paper Direction
Align the direction of the paper fiber with the feed direction.
Paper Weight (Thickness)
The following paper weights can be used:
20 to 413 g/m
2
(5.3 to 110 lb)
Friction Coefficient
It is recommended that the same type of paper from the same
manufacturer should be used.
When papers of different manufacturers/brands are mixed, it affects the
feeding performance as the difference in the friction coefficient
increases.
The following friction coefficients are recommended:
0.35 to 0.60 (reference value for paper friction coefficient)
Document Position
Use paper sizes that fit the 48 mm width of the pick roller in the center.
Paper Size
When you scan a mixed batch with different sizes, not feeding the
documents straight may cause troubles such as paper jams or part of
the image to appear missing.
It is recommended that you check the documents thoroughly before
scanning and also check the image if the document was skewed.
Documents That Cannot Be Scanned in a Mixed Batch
The following types of documents cannot be mixed in the same batch:
Carbonless paper
Bond paper
Perforated documents
Thermal paper
Carbon-backed paper
OHP film
Tracing paper
Pick Roller
48 mm
ATTENTION
When a mixed batch with different sizes is scanned, documents are
more likely to skew because the side guides do not contact every
sheet.
Do not use [Check Length] or [Check Overlapping and Length] for
multifeed detection.
