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13-22 Tr oubleshooting Chapter 13
The BJ cartridge print head may need cleaning.
❏ Clean the BJ cartridge print head. (1 p. 12-17)
The BJ cartridge or the BJ tank(s) may need to be replaced.
❏ Replace the BJ cartridge or the BJ tank(s). (1 pp. 12-19, 12-26)
Fax images print blotched or uneven.
The telephone lines may be in poor condition, or you may have a bad
connection.
❏ Error Correction Mode (ECM) sending/receiving should eliminate
such problems. However, if the telephone lines are in poor
condition, you may have to try again.
The sending fax machine may not be functioning properly.
❏ The sending fax machine usually determines the fax’s quality. Call
the sender and have them make sure the top cover and scanning
glass on their fax machine are clean.
Cannot receive using Error Correction Mode (ECM).
The other party’s fax machine may not support ECM.
❏ Some fax machines do not support ECM. If the other party’s fax
machine does not support ECM, then the document is sent and
received in normal mode without error checking.
ECM may be disabled.
❏ Make sure ECM is on. (1 ECM RX, pp. 14-11, 14-12)
Errors occur frequently while receiving.
The telephone lines may be in poor condition, or you may have a bad
connection.
❏ Lower the reception speed. (1 RX START SPEED, pp. 14-15, 14-16)
The sending fax machine may not be functioning properly.
❏ The sending fax machine usually determines the fax’s quality. Call
the sender and have them make sure the top cover and scanning
glass on their fax machine are clean.