Dell 3115CN, Service Manual

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Chapter 1 Troubleshooting
Version 1 2006.11.21
3.4 Reception Fault
1) Cannot receive
a) Answering mode is incorrect.
Cause: The answering mode is set to "TEL Mode". (Panel Menu: Fax Settings > Ans Select)
Corrective Action: Change the answering mode to any mode other than "TEL Mode".
b) Fax memory is full.
Cause: An attempt was made to send document data in excess of the available memory capac-
ity.
Corrective Action: On the receiving side, wait until the current fax job is printed completely.
On the sending side, wait until the current fax job is sent out completely.
c) Printer displays some fault message.
Cause: A fault occurred in the printer.
Corrective Action: Solve the fault.
d) Distinctive ring pattern detection fails.
Cause: The distinctive ring pattern set for the DRPD mode is incorrect (applicable only in USA
and Canada).
Corrective Action: Check the ring patterns provided by the telephone service provider, and select
the correct pattern for fax.
e) Cannot detect CNG signal.
Cause: The communication fails in TEL/FAX mode or Ans/FAX Mode.
Corrective Action: Ground the printer properly.
f) Cannot detect off-hook.
Cause: Fails to detect off-hook in Ans/FAX mode.
Corrective Action: Set [Extel Hook Thresh] to "higher". A detection of an off-hook can be checked
by the change of panel display upon the off-hook of an external telephone.
2) Problem with printing quality, such as corrupt image, lines in image, top/bottom cut off.
a) If copy function is normal
Cause: Degraded telephone line connection caused by noise, etc., or a fault in the sending fax's
scanner.
Corrective Action: Determine whether the fault is in the telephone line or at the sending fax by try-
ing copy function at the sending fax.
If the telephone line condition is degraded, white horizontal lines, missing rows,
and/or top/bottom cut-off may occur.
Branch connections or an incoming call (call waiting) may also cause image
corruption.
b) If copy function is faulty
Cause: Dirt or fault in printer.
Corrective Action: Clean all parts of the printer or repair the printer.