Patent ID: 7921493

Claim:
A washing machine comprising: a washing tub; and a liquid detergent supply mechanism, the liquid detergent supply mechanism comprising at least one liquid detergent storage container that stores liquid detergent to be supplied to the washing tub, wherein the liquid detergent supply mechanism is configured to supply the liquid detergent stored in the liquid detergent storage container to the washing tub, and to remove residual liquid detergent not supplied to the washing tub by using a cleaning solution, wherein the washing machine further comprises a draining mechanism that discharges the washing water stored in the washing tub, the cleaning solution includes the washing water drained by the draining mechanism, and the liquid detergent supply mechanism further comprises: a valve; a cleaning solution supply passage connecting the valve and the draining mechanism; first flow passages connecting the valve and the at least one liquid detergent storage container; and a second flow passage selectively communicated with the first flow passages or the cleaning solution supply passage by the valve, for selectively guiding the liquid detergent or the cleaning solution to the washing tub.