Abstract: A recording device includes: a drive source; a driven portion having a driven gear; a drive transmission mechanism having a drive gear driven by the drive source and capable of swing between a first position where the drive gear is engaged with the driven gear and a second position where the drive gear is not engaged with the driven gear; and a regulating mechanism capable of swing between a regulating position where swing of the drive transmission mechanism is regulated and a non-regulating position where the swing of the drive transmission mechanism is not regulated. In the recording device, the regulating mechanism is capable of swing around a rotation axis of the driven gear.

Abstract: An embodiment of the present invention is a printing apparatus, comprising: a carriage on which a printing head is mounted and that can move reciprocally in a first direction; a motor configured to generate driving force; a driving shaft extending in the first direction and driven to rotate by the driving force; a plurality of driving units driven by the driving force transmitted through the driving shaft; a switching unit configured to switch a transmission destination of the driving force in the plurality of driving units in conjunction with the driving shaft; and a contact unit configured to rotate around a rotatably supporting unit so as to be in a contact position in which contact with the carriage is made or a non-contact position in which the contact with the carriage is not made and to move with the carriage in the contact position.

Abstract: [Problem to be Solved] Provided is a polyvinylidene fluoride resin-made porous membrane having excellent hydrophilicity, permeability, and fouling resistance and having suppressed elution of vinyl ether copolymer by using a small amount of vinyl ether copolymer. [Means to Solve the Problem] The porous membrane according to the invention comprises a polyvinylidene fluoride resin as a matrix material and a vinyl ether copolymer, wherein the vinyl ether copolymer is a copolymer of an oxyethylene group-containing vinyl ether monomer and a hydrocarbon group-containing vinyl ether monomer.