Canon imageCLASS MF4690 Reference Manual page 294

Before Using the
Machine 1
Sending of documents is too slow.
Document and Paper
2
Copying
3
Sending and
Receiving 4
Printing and
Scanning
5
Network
6
Remote UI
Cannot send using Error Correction Mode (ECM).
7
System Manager
Settings
8
Maintenance
9
Troubleshooting
10
Appendix
11
Table of Contents
Index
Q Is the resolution set to <FINE>, <PHOTO>, <SUPER
FINE>, or <ULTRA FINE>?
A Setting the resolution to <STANDARD> reduces the
sending time.
Q Is Error Correction Mode (ECM) set to <ON>?
A Because ECM corrects errors during a transmission,
any problems on the line can mean that the
transmission will take extra time. Set <ECM TX> to
<OFF>. (See "TX/RX SETTINGS, " on p. 11-11.)
Q Does the recipient's machine support ECM?
A If the recipient's machine does not support ECM,
the document is sent in normal mode without error
checking.
Back
Errors occur frequently while sending.
Q Are the telephone lines in poor condition, or do
you have a bad connection?
A Check if there is a device nearby that interferes with
signal transmission (e.g., microwave oven).
A Lower the transmission speed. (See "SYSTEM
SETTINGS, " on p. 11-34.)
Cannot redial with [Recall/Pause].
Q Is <REST. REDIAL/CALL> set to <ON>?
A When <REST. REDIAL/CALL> is set to <ON>, Redialing
is not available. (See "Restricting Job Recall, " on
p. 8-19.)
Entering the fax number is required again after pressing [Start].
Q Is <CONFIRM FAX NO.> set to <ON>?
A When <CONFIRM FAX NO.> is set to <ON>, you need
to enter the fax number again after pressing [Start].
(See "Confirming Entered Fax Numbers, " on p. 8-19.)
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