Canon LASER CLASS 730i Service Manual page 109

LASER CLASS 730i/720i/710 Chapter 4: Maintenance and Service
#005 [TX/RX] Initial identification (T0/T1) time-over
Cause:
Solutions:
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#009 [RX] Recording paper has jammed or the recording paper has run out
Cause:
Solutions:
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Solutions:
(3) Make a copy,and make sure that the document read motor is
operating corrctly.
(4) Check the document read motor and SCNT board (J803)
connections.
(5) Replace the document edge sensor (DES).
(6) Replace the document read motor.
(7) Replace the SCNT board.
Tone/pulse parameter set incorrectly.
Set the user data "TEL LINE TYPE" tone/pulse parameter correctly.
The time until connection with the other fax is too long.
(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.
The other fax does not answer.
Contact the other party and have them check for the cause.
A significant signal has not been received after starting transmitting
theDIS signal.
Lengthen the T1 timer (Rx) with Service Data #3 Numeric param.11 so
that the time-out error does not occurr.
The communications mode (G2,G3,etc) of the other fax does not match
that of this fax.
The communications mode is a part of specification for the fax, so there is
no countermeasure.
(1) The other fax malfunctioned during transmission due to echoes.
(2) Malfunction due to echoes during reception.
Provide measures against echoing using SW03 of service data #1 SSSW.
The recording paper jammed.
Clear the recording paper jam.
There is no recording paper.
Load recording paper.
Internal structure defect.
(1) Check if the cassette recording paper sensor, multi-purpose tray
paper sensor are operating correctly using the methodes given in
this chapter, 6.7 Faculty Tests, Test mode [6] Faculty test, [3] Sensor
tests.
(2) Check the multi-purpose tray paper sensor, the sensor cable and the
ECU board connections.
(3) Check the cassette recording paper sensor, the sensor cable and the
EPU board (J305) connections.
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