Paper Grain And Curl - Canon imagePRESS C910 Customer Expectation Document

16.5 Paper Grain and Curl

Paper grain and curl can dramatically affect the reliability of machines that use an
electrostatic process, like the imagePRESS C910/C810/C710. Paper used in an
offset press is usually cut for short edge feeding. This type of paper is not as
reliable as paper made for machines that use an electrostatic process, which is cut
for long edge feeding. Also, the composition of electrostatic paper is different from
offset paper, and produces better quality results in a digital machine. When
selecting paper for the imagePRESS C910/C810/C710 choose paper intended for
use in electrostatic machines, such as laser printers and copiers.
If paper jams or poor print quality occur when paper is fed from the multi-purpose
tray or optional paper deck, paper curl is often the cause. The paper stiffness,
direction of curl, and amount of curl have a strong influence on how well the paper
is transported through the machine. If paper is curled, straighten out the paper by
gently curling it in the opposite direction to which it is curled.
Paper stiffness depends on the direction of the paper grain. Paper tends to curl in
the direction parallel to the grain.
IMPORTANT
When using LTR or smaller paper sizes we recommend using paper with a grain
parallel to the long edge (A). For paper sizes larger than 11" x 17", we
recommend using paper with a grain parallel to the short edge (B). When using
coated paper thinner than 105 g/m
perpendicular to the feeding direction of the paper.
Version 5
imagePRESS C910/C810/C710 Customer Expectations Document
imagePRESS C910/C810/C710 Customer Expectations Document
2
, we recommend using paper with a grain
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