  By accumulating data from the Solid-state Slit Camera (SSC) on board the MAXI
mission for 2 years from 2009 to 2011, diffuse X-ray background maps were
obtained in energies of 0.7--1.0, 1.0--2.0, and 2.0--4.0 keV. They are the
first ones that were derived with a solid-state instrument, and to be compared
with the previous ROSAT all sky survey result. While the SSC map in the highest
energy band is dominated by point sources and the Galactic Diffuse X-ray
emission, that in 0.7--1.0 keV reveals an extended X-ray structure, of which
the brightness distribution is very similar to that observed with ROSAT about
20 years before. Like in the ROSAT result, the emission is dominated by a
bright arc-like structure, which appears to be a part of a circle of $\sim
50^\circ$ radius centered at about $(l, b) \sim (340^\circ, 15^\circ)$. In
addition, the SSC map suggests a fainter and larger ellipse, which is elongated
in the north-south direction and roughly centered at the Galactic center. The
spectrum of these structures is explained as thin thermal emission from a
plasma, with a temperature of $\sim 0.31$ keV and an abundance of $\sim0.3$
Solar. Based on SSC observation conditions including the low Solar activity,
the Solar Wind Charge Exchange signals are estimated to be negligible in the
present SSC maps, as well as in the $>0.56$ keV ROSAT map. A brief discussion
is given to the obtained results.
