Canon FAX-L800 manual Document tray, Ecm, Fine

Document tray

Holds documents ejected from the fax unit after they have been scanned into memory, copied, or sent by direct sending.

Dual access

Enables you to scan a transmission, even if the fax is copying, sending or receiving a document. You do not have to wait until the fax ®nishes the current send/receive transmission. While the facsimile sends a document from the memory, you can load other documents into the memory, copy documents, print out reports, or register information.

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 beginning of that block after con®rming 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 transaction speed is extremely slow, you can turn ECM off.

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 de®ned by CCITT. 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 Modi®ed Huffman (MH), Modi®ed Read (MR), Modi®ed Modi®ed Read (MMR), and JBIG.

G-4 Glossary