Canon 730i User Guide - Page 342

E ECM Stands for Error Correction Mode. Reduces system and line errors when sending or receiving from another fax machine 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 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 transaction speed is extremely slow. Error lamp Blinks red when a paper jam occurs or the machine 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. Group dialing Group dialing enables you to dial up to 199 previously registered one-touch speed dialing or coded speed dialing numbers together as a group. This means you only Appendix need to press a one-touch speed dialing key or [Coded Dial] followed by a three digit code to dial a large group of numbers automatically. You register each group of facsimile numbers under a one-touch or coded speed dialing key, so make sure a key is available before trying to register numbers for group dialing. Once a group is defined, you can add or delete numbers to/from the group. 14 Glossary 14-11 CF-PL Facsimile Guide_USEN HT1-2188-000-V.1.0