A disposable shaker made of synthetic material having a cup-like cover and a cup-like base which can be removably connected together and have or form the one or the other a container with a plurality of bins which contain the ingredients for a desired cocktail and are closed by a membrane which is tearable by way of tearing teeth in one-piece with the cover or base inside thereof. An electrophotographic color image forming apparatus is also provided that includes a case with a door and the color registration sensing device is disposed on the case. A catalyst SOx deposition amount is calculated according to an EGR rate and a sensor deposition amount, based on the fact that the relationship between the sensor deposition amount detected by the CO2 sensor and the catalyst SOx deposition amount is determined according to the EGR rate. This hydrogen barrier layer 14 prevents hydrogen filled in liner 11 from penetrating to outside. The sliding operation can be more smoothly and silently performed.