Glossary G-5
Glossary
LASER CLASS 3170 Series.
CFYA/YAH/YAN 120v US V1.0
E
ECM
Stands for error correction mode. Reduces system and line errors when
sending or receiving from another fax with ECM capability. When there
is noise on the telephone line, a distortion or blank area can occur in the
document received by the other party. ECM divides one page into a
number of blocks and checks for lost data block by block. When some
data is lost in a certain block, ECM repeats transmission from the begin-
ning of that block after confirming that all data within the block can be
transmitted successfully. In this way, ECM guarantees that a good image
can be received at the receiving end. ECM is very effective in countries
where the telephone lines are in poor condition. There may be occasions
when you want to turn ECM off. For instance, when you feel the transac-
tion speed is extremely slow, you can turn ECM off.
Error lamp
Blinks red when a paper jam occurs or the fax is running out of toner or
paper.
F
Fine
Use this setting for documents with very small characters and lines. It is
twice the Standard resolution.
G
G3
Group 3 fax machines defined by CCITT/ITU-T. Uses encoding schemes
to transmit image data while reducing the amount of data that needs to
be transmitted, thus reducing transmission time. G3 fax machines can
transmit one page in less than one minute. Encoding schemes for G3 fax
machines are Modified Huffman (MH), Modified Read (MR), Modified
Modified Read (MMR), and JBIG.