To enhance an effect of scattering preventing of powder and to conduct a labor hour saving in a printing step by automatically controlling an output regulation of a dust collector in a delivery part of a sheet-fed printer scattered with blocking preventing powder, and holding a scattering amount of the powder near a delivery guide in the delivery part constant.
A delivery part 3 of a sheet-fed printer scattered with blocking preventing powder sets a scattering amount of the powder based on design area data of a printed product, automatically controls the powder scattering amount with reference to a measured value actually measured at a particle amount of an atmosphere in the delivery part, particularly feeds back the measured value to a powder scattering amount automatic control box 4, and controls a powder spray blower 6.
| WO/2011/030644 | POWDER-DISPERSING DEVICE FOR PRINTING |
| JP2578195 | [Name of device] Powdering device for sheet-fed printing press |
| JP2019059106 | DELIVERY CHAIN AUTOMATIC WASHING DEVICE |
IN RYUICHI
KAJIWARA KAZUYA
JITSUMATSU SHINYA
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