  Monitor of All-sky X-ray Image (MAXI) on the International Space Station
(ISS) has two kinds of X-ray detectors: the Gas Slit Camera (GSC) and the
Solid-state Slit Camera (SSC). SSC is an X-ray CCD array, consisting of 16
chips, which has the best energy resolution as an X-ray all-sky monitor in the
energy band of 0.5 to 10 keV. Each chip consists of 1024x1024 pixels with a
pixel size of 24$\mu$m, thus the total area is ~200 cm^2. We have developed an
engineering model of SSC, i.e., CCD chips, electronics, the software and so on,
and have constructed the calibration system. We here report the current status
of the development and the calibration of SSC.
