Copyright © 2006 MCA Internet, LLC dba BERTL.
22 August 2006
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Page 46
Savin C2525
Original Handling Capabilities
While scanning speeds and duty volumes
may be based upon perfect standard let-
ter/A4 sized office grade laser printer paper,
there are a much wider range of media sub-
strates that are commonly used and handled in the world
every day.
Coated Surfaces Help Printing But Hinder Scanning
Friction rollers that grip and guide originals through the
document feeder work very well on standard fibrous office
paper. Now consider the account department administra-
tor who scans hundreds of multi-part purchase orders
printed on carbonless paper or a customer service depart-
ment processing customer correspondents using coated
inkjet paper. Both media supplies include a chemical sur-
face layer that aids printing but reduces friction making
rollers slip and miss-feed.
Damaged Originals Can Create Rejections
Perfectly crisp flat edges are an ideal medium to feed
through a document feeder. Now consider the paralegal
processing discovery documents complete with ripped out
corners left after staple removal, or torn punch holes.
Some scanner mechanisms are designed to shutdown at
the merest detection of imperfection to avoid jamming
risks. Others battle through with more forgiving fed
mechanisms that adjust to less than perfect conditions.
Size Matters
Most scanner units include multiple friction rollers that
share the workload and maintain a straight feed path.
Smaller originals like invoices, business cards, index
cards, etc., may only get captured and fed through the
scanner by one set of friction rollers, which can results in
more crooked misfeeds and jams.
There is a Perfect Weight
The flexibility, resistance and other physical factors of
standard office grade paper makes it the ideal medium for
high speed scanning. As paper weights get further away
from the ideal, such as thin delicate newspaper or heavy
purchase warranty registration cards, so do the incidences
of misfeeds.
BERTL Tests Span Real World Situations
To see how scanner feed mechanisms handle the wide
range of possible media types, BERTL analysts stack the
feeder with a wide range of media types and report on
how each original type is handled.
Scan
Original Handling Results
(50 originals scanned at 200dpi monochrome) setting
67 lb. Cover Stock Registration Cards
No misfeeds
Yellow Pages (newspaper grade media)
Five misfeeds, original
crumpled but not torn
Magazine with heavy glossy cover and 20 lb.
glossy coated inside pages
No misfeeds
Carbonless Purchase Order Forms
No misfeeds
Business Cards
Not supported
Coated Inkjet Paper
No misfeeds
4” x 6” Index Cards
Not supported
20 lb. bond office paper fed with leading edge
damage due to staple removal
One misfeed, no damage
to original
Original Feeding Test Observations
The original jams that did occur were reasonably easy to
remove. While jams did occur on the lightweight Yellow
Pages stock, the document feeder did better than most
rival devices that have attempted the test.
Savin has added a
new jam removal fea-
ture to its document
feeder. By swiveling
the top mounting, a
plastic guard is
pushed in the reverse
direction against the
grip roller pushing the
jammed original out
gently. This is a great
improvement over previous designs and resulted in the
removal of all five Yellow Page jams with no damage other
that moderate crumpling.
Further assisting the user
is comprehensive instruc-
tions with Flash instruc-
tions on the color touch
screen.
