Panasonic KX-FP81BX Service Manual page 49

2.3.5.1.3. RECEIVE PROBLEM
First confirm whether the recording paper is installed properly or not before starting troubleshooting. (Refer to "Remarks".)
Note:
"596: Transmit level set" represents a service code. (Refer to 2.4.4. SERVICE FUNCTION TABLE(P.87).)
Remarks:
Regarding the reception problem, we have investigated the conceivable causes in the flow chart except for the software-related
errors. However, some troubles may occur due to the software-related problems such as "OUT OF PAPER" when the fax
switches to the memory receiving mode and the memory capacity becomes full of the unprintable data. In this case, error
messages [MEMORY FULL] and its main cause, for example "CHECK PAPER" are displayed on the LCD. Once you solve the
main problem, [MEMORY FULL] will be cancelled and the reception problem will be resolved.
LCD display messages indicating the error causes are shown below.
CHECK PAPER
COVER OPEN
UNIT OVERHEATED (COVER OPEN, etc.)...Reset the unit.
PAPER JAMMED
CHECK FILM
Please refer to 2.2. USER RECOVERABLE ERRORS (P.26) for the above items. If it turns out to be a hardware deformity,
please check each sensor. (Refer to 2.5. TEST FUNCTIONS (P.99).)
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KX-FP81BX / KX-FP81CX / KX-FP82CX