Canon C75 - Manual (Page 176)

13-18 Troubleshooting Chapter 13
Error Correction Mode (ECM) may be disabled.
• Make sure ECM is on. (
→ ECM RX , p. 14-7)
■ ■ ■ ■ ■ Faxes do not print.
The BJ cartridge or tanks may not be installed properly.
• Make sure the BJ cartridge and tanks are installed properly. (
→
pp. 2-13, 12-15)
• Be sure to remove the orange protective tape from the BJ cartridge before you install it.
( → p. 2-16)
The BJ cartridge print head may need cleaning.
• Refer to the flow chart (
→
p. 12-9) and clean the BJ cartridge print head if necessary.
(
→
p. 12-11)
The BJ cartridge or tanks may need to be replaced.
• Determine if the problem is with the BJ cartridge or tanks (
→ p. 12-8), and replace if
necessary. (
→
pp. 12-12, 12-15)
■ ■ ■ ■ ■ 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 of their fax machine are clean.
■ ■ ■ ■ ■ Cannot receive using Error Correction Mode (ECM).
The other party’s fax machine may not support ECM.
• If the other party’s fax machine does not support ECM, then the document is received in
normal mode without error checking.
ECM may be disabled.
• Make sure ECM is on. (
→ ECM RX , p. 14-7)
■ ■ ■ ■ ■ Errors occur frequently while receiving.
The telephone lines may be in poor condition, or you may have a bad connection.
• Lower the reception speed. (
→ RX START SPEED , p. 14-9)
The sending fax machine may not be functioning properly.
• Call the sender and have them check that their fax machine is functioning properly.