Abstract: A detection method for stain on a light cover of a LiDAR, including: transmitting a multi-pulse sequence with pulse coding; receiving an echo; obtaining an echo pulse sequence in the echo corresponding to the multi-pulse sequence; determining whether the light cover of the LiDAR has a stain based on a time of flight (TOF) of the echo pulse sequence. The present disclosure utilizes light beams generated by a transmitter unit of the LiDAR to detect a stain on the light cover, without the necessity to add an extra light source and/or detector device. The present disclosure provides a simple structure, which saves internal space of the LiDAR. In this application, the detection is completed by using the coded time, TOF and the number of echo points, and the detection accuracy is high and the misjudgment can be avoided.

Abstract: The imaging device has a housing inside which a machine body is installed, a consumables container receiver, and a connector. The machine body has a master control circuit board; the master control circuit board has a communications module which communicates with a consumables chip. The consumables chip stores the information relating to a consumables container. At least one consumables container is detachably installed on the consumables container installer of the consumables container receiver. The connector is installed apart from the consumables container installer; the consumables chip is installed inside the connector and connected with a communications module in a communication manner. The invention also provides a remodeling method and a consumables container for such an imaging device.

Abstract: The imaging device has a housing inside which a machine body is installed, a consumables container receiver, and a connector. The machine body has a master control circuit board; the master control circuit board has a communications module which communicates with a consumables chip. The consumables chip stores the information relating to a consumables container. At least one consumables container is detachably installed on the consumables container installer of the consumables container receiver. The connector is installed apart from the consumables container installer; the consumables chip is installed inside the connector and connected with a communications module in a communication manner. The invention also provides a remodeling method and a consumables container for such an imaging device.

Abstract: A valve core of an ink cartridge includes an elastic valve sheet having an inner portion and an outer portion. The outer portion extends outwards from the inner portion and protrudes towards an upstream side of the valve core. The outer portion is adapted to sealingly engage and disengage with a valve seat in which the valve core is mounted.

Abstract: An ink cartridge for inkjet printers is disclosed. The inkjet cartridge comprises a case, an ink supply chamber, and an ink storage chamber. The ink supply chamber and the ink storage chamber are inside the case. An ink outlet is provided on a sidewall of the case. The ink supply chamber is connected or linked in a low position with the ink outlet and in a high position with an air vent. The ink storage chamber is connected or linked in a low position with the ink supply chamber through a first passageway and a second passageway; the second passageway is below the ink outlet but above the first passageway. The cartridge has a simple structure. It eliminates the need of air pump and provides constant supply of ink to the print head. It avoids ink overflow caused by the temperature change in the environment.

Abstract: An ink cartridge for inkjet printers is disclosed. The inkjet cartridge comprises a case, an ink supply chamber, and an ink storage chamber. The ink supply chamber and the ink storage chamber are inside the case. An ink outlet is provided on a sidewall of the case. The ink supply chamber is connected or linked in a low position with the ink outlet and in a high position with an air vent. The ink storage chamber is connected or linked in a low position with the ink supply chamber through a first passageway and a second passageway; the second passageway is below the ink outlet but above the first passageway. The cartridge has a simple structure. It eliminates the need of air pump and provides constant supply of ink to the print head. It avoids ink overflow caused by the temperature change in the environment.

Abstract: A valve core of an ink cartridge includes an elastic valve sheet having an inner portion and an outer portion. The outer portion extends outwards from the inner portion and protrudes towards an upstream side of the valve core. The outer portion is adapted to sealingly engage and disengage with a valve seat in which the valve core is mounted.