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The rates of inclusive photo- and electroproduction of the eta_c meson:gamma* + p -> eta_c + X are calculated in the triple Regge region, integratedover the diffractive mass X. For the Regge exchanges we use the hard Pomeronand Odderon, both being calculated in the framework of perturbative QCD. Theintegrated cross-section depends upon the coupling of the BFKL pomeron to two$C=-1$ odderons, and it is found to be of the order 60 pb for photoproductionand 1.5 pb at Q^2=25 GeV^2.Comment: 19 pages, latex, 7 eps figure

The process $\gamma(^*) + p \to \eta_c + X$ : a test for the perturbative QCD odderon