What are the effect of job satisfaction on customer satisfaction?

Answer

YES there is a relation between employee job performance and customer satisfaction

Because if job performance for employee is very high that is mean he is acting well in his organisation, then he could deals perfectly with customers and their requirements

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Yet another tentative: Yes he could deal with requirements, but will he ?

The answer should therefore be yes, *overall*, for as long as there is an effective (formal or informal) performance system or framework (including motivation) orienting the actions of a majority of employees towards customer satisfaction. Moreover, there will always be less productive / effective members of staff, and also there will always be job profiles which do hardly have a visible impact on service quality. Which is why I insisted on the Word overall...

As this seems quite obvious I think the question should be reformulated to check whether there is a relationship between employee satisfaction and customer satisfaction, which was partly answered positively via the link provided.