Conditions for mixed batch scanning – Fujitsu Ricoh Fujitsu fi-7900 Image Scanner User Manual
Page 70
Conditions for Mixed Batch Scanning
The following conditions apply when a mixed batch of documents with different paper weights/
friction coefficients/sizes is scanned.
Always test scan a few sheets and see if the documents can be fed through before scanning a
mixed batch of documents.
For information on how to scan mixed batches, refer to
Scanning Documents with Different
.
Paper Type
Align the direction of the paper fiber with the feed direction.
Paper Weight
When scanning documents with different paper weight in the same batch, keep the paper
weight within the following range:
●
A5 or larger, A4/Letter or smaller: 20 to 209 g/m
2
(5.4 to 56 lb)
●
Smaller than A5, larger than A4: 41 to 209 g/m
2
(11 to 56 lb)
Friction Coefficient
It is recommended that the same paper brand from the same manufacturer is used for
documents.
When different paper manufacturers/brands are mixed in documents to be scanned, it affects
the feeding performance as the difference in 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 64 mm width of the pick rollers in the center.
Paper Size
When a set of wider documents is placed on top of smaller documents within the same batch,
the wider documents on top may hang down and affect the feeding performance.
How to Load Documents
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