Abstract: A sheet suction device includes a drum having multiple suction ports in a circumferential surface of the drum, the drum configured to bear a sheet on the circumferential surface and rotate in a circumferential direction of the drum, and a suction device configured to suck the sheet through the multiple suction ports to attract the sheet on the circumferential surface. The drum includes multiple suction regions aligned in the circumferential direction on the circumferential surface, each of the multiple suction regions includes the multiple suction ports aligned in the circumferential direction and in an axial direction of the drum on the circumferential surface, the multiple suction regions include an upstream region, a middle region, and a downstream region in the circumferential direction, and the middle region has the multiple suction ports at both outer sides in the axial direction of the drum.

Abstract: A sheet suction device includes a sheet bearer having a plurality of suction holes, a suction unit, a first member, and a second member. The first member has grooves arranged in a radial direction, and each of the grooves extends in a circumferential direction. The second member has a plurality of hole rows including a plurality of holes. The plurality of holes in each of the plurality of hole rows is arranged in the circumferential direction, and the plurality of hole rows is arranged in the radial direction. When the first member rotates with respect to the second member, the number of holes communicating with the grooves is changed to change the number of the plurality of suction holes communicating with the suction unit. The plurality of holes includes two or more holes that simultaneously communicate with the suction unit when the first member rotates by a unit rotation amount.

Abstract: A sheet suction device includes a drum including multiple suction holes in a circumferential surface of the drum, the drum configured to bear a sheet on the circumferential surface and rotate, a suction device configured to suck the sheet through the multiple suction holes, a rotary valve between the multiple suction holes of the drum and the suction device, the rotary valve configured to rotate relative to the drum to change a number of the multiple suction holes communicating with the suction device, and a driver configured to relatively rotate the drum and the rotary valve.

Abstract: A phosphor, wherein the phosphor has a formula: VIII(Y1-x-z-w,Luz,Gdw,Cex)3VI(Al1-yMny)2IV(Al1-2y/3,Si2y/3)3O12, wherein 0<x?0.05, 0<y?0.04, 0<x+z<1, 0?w?0.50 when z?0, 0?w?0.35 when z=0, and 0<x+z+w?1, is described. Furthermore, a light-emitting device and methods for preparing the phosphor and the light-emitting device are described.

Abstract: A sheet suction device includes a bearing member configured to bear a sheet on a circumferential surface of the bearing member and rotate in a first direction, a plurality of suction holes in a bearing region in the circumferential surface of the bearing member, a suction device connected to the plurality of suction holes, the suction device configured to suck the sheet through the plurality of suction holes, and a first member between the plurality of suction holes and the suction device, the first member rotatable in a second direction different from the first direction to change a suction region of the suction device connected to the plurality of suction holes. A rotation of the first member in the second direction expands the suction region of the suction device in the bearing region of the bearing member.

Abstract: A sheet suction device includes a drum having multiple suction ports in a circumferential surface of the drum, the drum configured to bear a sheet on the circumferential surface and rotate in a circumferential direction of the drum, and a suction device configured to suck the sheet through the multiple suction ports to attract the sheet on the circumferential surface. The drum includes multiple suction regions aligned in the circumferential direction on the circumferential surface, each of the multiple suction regions includes the multiple suction ports aligned in the circumferential direction and in an axial direction of the drum on the circumferential surface, the multiple suction regions include an upstream region, a middle region, and a downstream region in the circumferential direction, and the middle region has the multiple suction ports at both outer sides in the axial direction of the drum.

Abstract: A sheet suction device includes a sheet bearer having a plurality of suction holes on a plurality of bearing areas, a rotational portion having a plurality of holes that is connectable to the plurality of suction holes, a suction unit configured to suck air via the plurality of holes of the rotational portion. The sheet bearer bears a plurality of sheets on the plurality of bearing areas of the circumferential surface of the sheet bearer and rotates. The rotational portion rotates in a same cycle of the sheet bearer. The sheet suction device further includes a switching unit that switches combinations of whether or not to suck the air among the plurality of bearing areas of the sheet bearer according to a phase of rotation of the sheet bearer or the rotational portion.

Abstract: A sheet suction device includes a drum including multiple suction holes in a circumferential surface of the drum, the drum configured to bear a sheet on the circumferential surface and rotate, a suction device configured to suck the sheet through the multiple suction holes, a rotary valve between the multiple suction holes of the drum and the suction device, the rotary valve configured to rotate relative to the drum to change a number of the multiple suction holes communicating with the suction device, and a driver configured to relatively rotate the drum and the rotary valve.

Abstract: A sheet suction device includes a bearing member configured to bear a sheet on a circumferential surface of the bearing member and rotate, a plurality of suction holes in a bearing region in the circumferential surface of the bearing member, a suction device connected to the plurality of suction holes, the suction device configured to suck the sheet through the plurality of suction holes, and a rotary valve between the bearing member and the suction device. The rotary valve includes: a first member communicating with the suction device, and a second member contacting the first member, the second member communicating with the plurality of suction holes. The first member includes a first groove on a side surface in a circumferential direction of the first member, the first groove communicating with the suction device.

Abstract: A sheet suction device includes a sheet carrier, a suction unit, and a rotary body. The sheet carrier has a carrying region. The carrying region includes a plurality of suction openings. The sheet carrier is configured to rotate while holding a sheet. The suction unit is configured to communicate with the plurality of suction openings and suck air via the plurality of suction openings. The rotary body is disposed between the plurality of suction openings and the suction unit. The rotary body is configured to rotate to change a number of suction openings that communicate with the suction unit, among the plurality of suction openings of the sheet carrier.

Abstract: A sheet suction device includes a bearing member configured to bear a sheet on a circumferential surface of the bearing member and rotate, a plurality of suction holes in a bearing region in the circumferential surface of the bearing member, a suction device connected to the plurality of suction holes, the suction device configured to suck the sheet through the plurality of suction holes, and a rotary valve between the bearing member and the suction device. The rotary valve includes: a first member communicating with the suction device, and a second member contacting the first member, the second member communicating with the plurality of suction holes. The first member includes a first groove on a side surface in a circumferential direction of the first member, the first groove communicating with the suction device.

Abstract: A sheet suction device includes a sheet bearer having a plurality of suction holes on a plurality of bearing areas, a rotational portion having a plurality of holes that is connectable to the plurality of suction holes, a suction unit configured to suck air via the plurality of holes of the rotational portion. The sheet bearer bears a plurality of sheets on the plurality of bearing areas of the circumferential surface of the sheet bearer and rotates. The rotational portion rotates in a same cycle of the sheet bearer. The sheet suction device further includes a switching unit that switches combinations of whether or not to suck the air among the plurality of bearing areas of the sheet bearer according to a phase of rotation of the sheet bearer or the rotational portion.

Abstract: A sheet suction device includes a sheet bearer having a plurality of suction holes, a suction unit, a first member, and a second member. The first member has grooves arranged in a radial direction, and each of the grooves extends in a circumferential direction. The second member has a plurality of hole rows including a plurality of holes. The plurality of holes in each of the plurality of hole rows is arranged in the circumferential direction, and the plurality of hole rows is arranged in the radial direction. When the first member rotates with respect to the second member, the number of holes communicating with the grooves is changed to change the number of the plurality of suction holes communicating with the suction unit. The plurality of holes includes two or more holes that simultaneously communicate with the suction unit when the first member rotates by a unit rotation amount.

Abstract: A sheet suction device includes a bearing member configured to bear a sheet on a circumferential surface of the bearing member and rotate in a first direction, a plurality of suction holes in a bearing region in the circumferential surface of the bearing member, a suction device connected to the plurality of suction holes, the suction device configured to suck the sheet through the plurality of suction holes, and a first member between the plurality of suction holes and the suction device, the first member rotatable in a second direction different from the first direction to change a suction region of the suction device connected to the plurality of suction holes. A rotation of the first member in the second direction expands the suction region of the suction device in the bearing region of the bearing member.

Abstract: A ceramic wavelength converter assembly has a layered structure. The ceramic wavelength converter assembly includes two first layers having an undoped host material, or a doped host material, two second layers having a barrier material and being disposed between the two first layers and a third layer having an undoped host material, or a doped host material and being disposed between the two second layers. The two first layers include the undoped host material and the third layer includes the doped host material, or the two first layers include the doped host material and the third layer includes the undoped host material.

Abstract: A liquid discharge device includes a head array, a support body, a moving assembly, and a head array fixing device. The head array fixing device fixes the head array at an approach position. The head array fixing device includes a gripping target member and a gripping member. The gripping target member is disposed on one of the head array and the support body and extending in a direction in which the head array approaches or retracts from a recording region of a recording medium. The gripping member is disposed on another of the head array and the support body, to grip the gripping target member to position the gripping target member in a conveyance direction and a width direction of the recording member. A gripping position at which the gripping member grips the gripping target member is adjustable in at least one of the conveyance direction and the width direction.

Abstract: A ceramic wavelength converter assembly has a layered structure. The ceramic wavelength converter assembly includes two first layers comprising an undoped host material, or a doped host material; two second layers comprising a barrier material and being disposed between the two first layers; and a third layer comprising an undoped host material, or a doped host material and being disposed between the two second layers.

Abstract: A sheet suction device includes a sheet carrier, a suction unit, and a rotary body. The sheet carrier has a carrying region. The carrying region includes a plurality of suction openings. The sheet carrier is configured to rotate while holding a sheet. The suction unit is configured to communicate with the plurality of suction openings and suck air via the plurality of suction openings. The rotary body is disposed between the plurality of suction openings and the suction unit. The rotary body is configured to rotate to change a number of suction openings that communicate with the suction unit, among the plurality of suction openings of the sheet carrier.

Abstract: A liquid discharge device includes a head array, a support body, a moving assembly, and a head array fixing device. The head array fixing device fixes the head array at an approach position. The head array fixing device includes a gripping target member and a gripping member. The gripping target member is disposed on one of the head array and the support body and extending in a direction in which the head array approaches or retracts from a recording region of a recording medium. The gripping member is disposed on another of the head array and the support body, to grip the gripping target member to position the gripping target member in a conveyance direction and a width direction of the recording member. A gripping position at which the gripping member grips the gripping target member is adjustable in at least one of the conveyance direction and the width direction.

Abstract: A garnet ceramic phosphor with Ce and Mn co-doping, wherein calcium and silicon in the phosphor crystal host can be minimized for enhancing performance, is described herein. Also a ceramic phosphor element comprising a garnet phosphor having composition of formula 1 or 2 is described herein: (A1-x,Cex)3(Al1-y,Mny)5-wSiwO12??(Formula 1) (Lu1-x,Cex)3(Al1-y,Mny)5-wSiwO12??(Formula 2).