Abstract: A pressurization control method for blood pressure measurement is applied on a blood pressure measurement device, and includes connecting an airbag unit with a pump, a slow exhaust valve unit and a pressure sensor, wherein the slow exhaust valve unit has a nonlinear depressurization rate; controlling the pump to pressurize the airbag unit with a nonlinear inflation rate until pulses of a pressure signal outputted from the pressure sensor is interpreted to obtain a blood pressure measurement result, wherein the pump inflates the airbag unit with an inflation rate increasing nonlinearly upon a temporal sequence, and the slow exhaust valve unit depressurizes the airbag unit with a nonlinear depressurization rate upon the temporal sequence.

Abstract: A sleeve and multi-function printer are provided. The multi-function printer includes a body, a roller and a pair of sleeves. The body includes multiple side-walls, wherein a pair of opposite side-walls, each has a protrusion. The roller is disposed in the body, and two ends of the roller are pivoted through the opposite side-walls. The sleeves are disposed on the ends of the rollers and correspondingly located on the opposite side-walls. Each of the sleeves has an annular body, a connection portion and a first extended end. The connection portion is coaxial and connected to the annular body. The first extended end is extended from the annular body along a radial direction of the annular body. The rotation length of the first extended portion is restricted by the protrusions.

Abstract: A sleeve and multi-function printer are provided. The multi-function printer includes a body, a roller and a pair of sleeves. The body includes multiple side-walls, wherein a pair of opposite side-walls, each has a protrusion. The roller is disposed in the body, and two ends of the roller are pivoted through the opposite side-walls. The sleeves are disposed on the ends of the rollers and correspondingly located on the opposite side-walls. Each of the sleeves has an annular body, a connection portion and a first extended end. The connection portion is coaxial and connected to the annular body. The first extended end is extended from the annular body along a radial direction of the annular body. The rotation length of the first extended portion is restricted by the protrusions.