A cashbag sealing system comprising: a banknote transport mechanism operable to transport a banknote to a storing unit, the storing unit operable to store the banknote transported to the storing unit, wherein the storing unit includes: a banknote storing bag to store the banknote, the banknote storing bag detachably coupled to the storing unit; and an escrow plate provided above the banknote storing bag operable to escrow the banknote before the banknote transported to the storing unit is stored in the banknote storing bag, wherein the escrow plate is pivoted on a shaft rotated by a motor, the escrow plate thereby being operable to turn about the shaft to move from a horizontally extending hold position to a downwardly or obliquely downwardly extending release position, and wherein the banknote transported to the storing unit is escrowed on the escrow plate when the escrow plate is located at the hold position; and a sensor configured to: detect a presence of the banknote on the escrow plate and measure a height of a banknote stack on the escrow plate; and measure a level of banknotes in the banknote storing bag, wherein the sensor is an optical distance sensor, a proximity sensor, or an optical triangulation sensor, comprising an emitter and a receiver. a banknote transport mechanism operable to transport a banknote to a storing unit, the storing unit operable to store the banknote transported to the storing unit, wherein the storing unit includes: a banknote storing bag to store the banknote, the banknote storing bag detachably coupled to the storing unit; and an escrow plate provided above the banknote storing bag operable to escrow the banknote before the banknote transported to the storing unit is stored in the banknote storing bag, wherein the escrow plate is pivoted on a shaft rotated by a motor, the escrow plate thereby being operable to turn about the shaft to move from a horizontally extending hold position to a downwardly or obliquely downwardly extending release position, and wherein the banknote transported to the storing unit is escrowed on the escrow plate when the escrow plate is located at the hold position; and a sensor configured to: detect a presence of the banknote on the escrow plate and measure a height of a banknote stack on the escrow plate; and measure a level of banknotes in the banknote storing bag, wherein the sensor is an optical distance sensor, a proximity sensor, or an optical triangulation sensor, comprising an emitter and a receiver. a banknote storing bag to store the banknote, the banknote storing bag detachably coupled to the storing unit; and an escrow plate provided above the banknote storing bag operable to escrow the banknote before the banknote transported to the storing unit is stored in the banknote storing bag, wherein the escrow plate is pivoted on a shaft rotated by a motor, the escrow plate thereby being operable to turn about the shaft to move from a horizontally extending hold position to a downwardly or obliquely downwardly extending release position, and wherein the banknote transported to the storing unit is escrowed on the escrow plate when the escrow plate is located at the hold position; and a sensor configured to: detect a presence of the banknote on the escrow plate and measure a height of a banknote stack on the escrow plate; and measure a level of banknotes in the banknote storing bag, wherein the sensor is an optical distance sensor, a proximity sensor, or an optical triangulation sensor, comprising an emitter and a receiver. detect a presence of the banknote on the escrow plate and measure a height of a banknote stack on the escrow plate; and measure a level of banknotes in the banknote storing bag, wherein the sensor is an optical distance sensor, a proximity sensor, or an optical triangulation sensor, comprising an emitter and a receiver.