Canon FAX L1000, Service Manual

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4-54
FAX-L1000 Chapter 4: Maintenance and Service
Cause: Internal structure defect
Solution:
(1) Check if the document edge sensor (DES) is operating correctly using
the methods given in
Chapter 2: 2.4.7 Faculty tests
, Test Mode [6]
Faculty Test, [3] Sensor Tests.
(2) Check the document edge sensor (DES) and SCNT board (J14)
connections.
(3) Make a copy, and make sure that the document read motor is operating
correctly.
(4) Check the document feed motor and SCNT board (J4) connections.
(5) Replace the document edge sensor (DES).
(6) Replace the document read motor.
(7) Replace the SCNT board.
#0005 [TX/RX] Initial identification time (T0/T1) over
Cause: Tone/pulse parameter set incorrectly.
Solution: Set the user data “ TEL LINE TYPE ” tone/pulse parameter correctly.
Cause:
The time until connection with the other fax is too long.
Solution:
(1) When registering for auto dialing, add a long pause to delay the start
of the timer.
(2) Lengthen the T0 timer with Service Data #3 Numeric param. 10 so
that the timer does not time out.
Cause: The other fax does not answer.
Solution: Contact the other party and have them check for the cause.
Cause: A significant signal has not been received after starting transmitting
the DIS signal.
Solution:
Lengthen the T1 timer (Rx) with Service Data #3 Numeric param. 11
so that the time-out error does not occur.
Cause:
The communications mode (G2, G3, etc.) of the other fax does not
match that of this fax.
Solution: The communications mode is a part of specification for the fax, so
there is no countermeasure.
Cause:
(1) The other fax malfunctioned during transmission due to echoes.
(2) Malfunction due to echoes during reception
Solution:
Implement echo countermeasures, given in this manual in
G3
Facsimile Service Data Handbook (Rev. 0) explanation of #1
SSSW SW03
.