| 摘要 |
PURPOSE:To detect an error assuredly by storing the error generating frequencies for each type when said generating frequencies exceeds an allowance level and transmitting this error information to a service center, etc. CONSTITUTION:When an error is produced, a CPU12 sets an error flag 6 at a high level and then discriminates whether the self-relief procedure of the error can be continued or not. When it is discriminated that the procedure can be continued, the error generating frequencies are stored for each type to an error information memory 1. Then said procedure is continued after performing the self-relief processing. When this procedure is through, a communication control CPU8 inhibits the transmission and reception actions. Then the CPU8 releases the inhibition of transmission/reception after confirming the presence or absence of a flag or calls out the contents of the memory 1 and an error allowance frequency memory 2 to compare them with each other. When the generating frequencies exceeds the allowance level, contents of memory 1 and user information memory 11 are transmitted while the CPU12 checks each mechanism with an error to which the continuation of procedure is impossible. The results of each mechanism check are stored to a self-check test memory 10. Then the contents of the memory 10 are transmitted.
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