Abstract: An epoxy silicon, which comprises at least a compound represented by the following general formula (1), and a compound represented by the following general formula (2); and which is represented by an average composition formula (3), wherein a value of [g/(a+b+c+d+e+f+g+h+i+j)] falls within a range of 0.020 or less.

Abstract: An epoxy silicon, which comprises at least a compound represented by the following general formula (1), and a compound represented by the following general formula (2); and which is represented by an average composition formula (3), wherein a value of [g/(a+b+c+d+e+f+g+h+i+j)] falls within a range of 0.020 or less.

Abstract: A glycolic acid copolymer comprising (a) 80 to less than 95% by mole of glycolic acid monomer units, (b) 5.0 to 20.0% by mole of non-glycolic, hydroxycarboxylic acid monomer units, and (c) 0 to 0.10% by mole of diglycolic acid monomer units, the non-glycolic, hydroxycarboxylic acid monomer units (b) constituting a plurality of segments each independently consisting of at least one monomer unit (b), wherein the segments have an average chain length of from 1.00 to 1.50 in terms of the average number of monomer unit or units (b), the total of the components (a), (b) and (c) being 100% by mole, the glycolic acid copolymer having a weight average molecular weight of 50,000 or more.

Abstract: A glycolic acid copolymer comprising (a) 80 to less than 95% by mole of glycolic acid monomer units, (b) 5.0 to 20.0% by mole of non-glycolic, hydroxycarboxylic acid monomer units, and (c) 0 to 0.10% by mole of diglycolic acid monomer units, the non-glycolic, hydroxycarboxylic acid monomer units (b) constituting a plurality of segments each independently consisting of at least one monomer unit (b), wherein the segments have an average chain length of from 1.00 to 1.50 in terms of the average number of monomer unit or units (b), the total of the components (a), (b) and (c) being 100% by mole, the glycolic acid copolymer having a weight average molecular weight of 50,000 or more.

Abstract: A printer with a sorter unit allows printed recording sheets to be sorted to a single tray selected from a plurality of trays by a recording sheet guide mechanism that pivots around a shaft. Thus, the printer can sort the printed sheets by page, by user, or discharge the printed sheets paginated or with the printed side facing upward. The sorter trays includes a first detection lever that is rotated by the weight of recording sheets and a second detection lever that rotates in association with the first detection lever. A lever detector is provided on the sorter guide to detect the movement of the second detection lever. The sorter or guide is also provided with a sheet detection lever to detect a jam in the sorter guide.

Abstract: A printer with a sorter unit allows printed recording sheets to be sorted to a single tray selected from a plurality of trays by a recording sheet guide mechanism that pivots around a shaft. Thus, the printer can sort the printed sheets by page, by user, or discharge the printed sheets paginated or with the printed side facing upward. The recording sheet guide mechanism is constructed to pivot around the shaft so that only a single drive unit is employed to select a tray for sorting. Thus, the printer has a simple and small structure. The printer has a recording sheet discharge outlet with discharge rollers for discharging a recording sheet that has been printed by the electrophotographic process.