Index Braille
Page 27
Index 4X4 PRO
January 2000
Version 1.20
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9
The sheet feeder
9.1
General function
The sheet feeder is designed to use paper in the weight range of 70-200 gsm. (grams per square metre)
Perfect function requires a paper suitable for the embosser, and a correctly installed sheet feeder. The
experience we have from thousands of embossers on the market, indicates that 80% of all good quality
paper works perfectly with the 4X4 PRO.
9.2
Paper quality
There are a number of different paper qualities on the market which are labelled “Braille Paper”.
Normally they are in the range of 80-180 gsm (20-100 Pound).
To determine if the paper quality is suitable for the 4X4 PRO, check the following details:
a) The paper is properly cut. There should be a smooth and even surface when you feel with your
finger along the cutting edge of the paper.
b) Never use separated fan fold paper. The edges of this paper are very bad and can result in
double-feeding, or not feeding at all.
c) The paper must be a clean, with no holes or perforations on the sheet. Holes and perforation are
normally made with a punch, and as a result sheets can “stick” together.
d) Check that the surface of the paper has a texture similar to normal copy paper. The roughness of the
surface affects the difference between gliding and standing friction and is necessary for proper
function. The paper should not have a shiny or glossy surface. (Similar to playing cards.)
e) Ensure that the paper is flat and undamaged.
f) Do not use dark coloured paper. It can interfere with the optical paper sensor.