Troubleshooting (Faults Unique To Models Equipped With Fax Functions); Troubleshooting Communication Faults - Canon iR1200 Series Service Manual

4.5 Troubleshooting
(faults unique to models equipped with fax functions)

4.5.1 Troubleshooting Communication Faults

Go through the troubleshooting flow chart
of work and the fault occurs while a fax function is in use, go through the following: 2.2 of
Chapter 7.
1) Find out the conditions in which the fault occurs in detail.
a. operation used; i.e., number of pages, transmission mode, timing of error occurrence
(as before or after transmission), user of auto-dialing
b. faulty image samples (store away; in the case of reception)
c. LCD indication at time of the fault
d. activity report at time of the fault
e. user information: abbreviation, telephone number, fax number, model name
f. other-party information: name, telephone number, fax number, model
g. frequency of occurrence, type of error
h. fax condition at other party; number of pages transmitted/received, auto or manual; re-
ception condition
If you are visiting in response to a report, try to obtain a system dump list
for a. and g.
REF.
2) Go through the following flow chart to conduct a communication test.
• Try a test several times for each item using the actual telephone line; check the symp-
toms, and keep a record.
3) Evaluate all the information you have colleted, and take appropriate action based on
comprehensive evaluation.
If the other party is a non-Canon machine and no fault is found in the user's
machine, arrange for an investigation of the other party. Advise the user on
REF.
the situation.
COPYRIGHT © 2002 CANON INC. 2000 2000 2000 2000 CANON iR1200/iR1300 Series REV. 0 AUG. 2002
CHAPTER 7 TROUBLESHOOTING
*
; if you cannot reach the last step of the flow
7-51