摘要:
Systems and methods are provided for dispersing a liquid coolant in a radiant dryer. The system comprises a dryer of a printing system. The dryer includes a heating element within an interior of the dryer that is able to heat a web of printed media as the web travels through the interior. The dryer also includes a liquid dispersal unit within the interior that is able to project liquid droplets of coolant onto the web as the web travels through the interior, in order to control the temperature of the web.
摘要:
Systems and methods are provided for filtering wavelengths of energy in a dryer of a printing system. The system comprises a dryer of a printing system that includes a heating element and an optical filter. The heating element is within an interior of the dryer and is able to radiate broad spectrum energy onto a web of printed media as the web travels through the interior. The optical filter is located within the interior between the heating element and the web, and the optical filter is able to prevent specific wavelengths of the energy from reaching the web while allowing other wavelengths of the energy to pass through.
摘要:
Systems and methods are provided for dispersing a liquid coolant in a radiant dryer. The system comprises a dryer of a printing system. The dryer includes a heating element within an interior of the dryer that is able to heat a web of printed media as the web travels through the interior. The dryer also includes a liquid dispersal unit within the interior that is able to project liquid droplets of coolant onto the web as the web travels through the interior, in order to control the temperature of the web.
摘要:
Systems and methods for improving the quality analysis of printheads that apply transparent or hard-to-detect fluids to a media. The system includes a printhead operable to apply a clear fluid to a print media. The system also includes a controller operable to enter a diagnostic mode for quality analysis of the printhead. The controller initiates a supply of diagnostic fluid to the printhead that includes a colorant. The controller then directs the printhead to apply the diagnostic fluid to the print media. Because the diagnostic fluid includes a colorant, the output of the printhead will be more visible on the media.
摘要:
Systems and methods for improving the quality analysis of printheads that apply transparent or hard-to-detect fluids to a media. The system includes a printhead operable to apply a clear fluid to a print media. The system also includes a controller operable to enter a diagnostic mode for quality analysis of the printhead. The controller initiates a supply of diagnostic fluid to the printhead that includes a colorant. The controller then directs the printhead to apply the diagnostic fluid to the print media. Because the diagnostic fluid includes a colorant, the output of the printhead will be more visible on the media.
摘要:
Systems and methods provide enhanced radiant drying capabilities for a printing system utilizing temperature control of a thermally conductive drum. One embodiment comprises a radiant dryer and a control system. The radiant dryer includes a thermally conductive drum and a plurality of radiant energy sources disposed along an outside surface of the drum. The energy sources dry a colorant applied to a print medium in contact with the drum. The radiant dryer further includes a cooling system that applies a coolant to the drum to remove heat from the drum. The control system measures the temperature of the drum, determines a difference between the temperature of the drum and a target temperature, and directs the cooling system to vary an application of the coolant to the drum based on the difference to maintain the drum at the target temperature.
摘要:
Systems and methods are provided for generating flush lines for printers. The system includes a flush line generator able to receive a print job, to determine a drying limit that defines a maximum areal density of ink for the print job that may be dried by a dryer, and to generate a flush line based on the drying limit that does not exceed the drying limit. The system further includes a marking engine able to mark the print job and the flush line onto a web of printable media upstream from the dryer.
摘要:
Systems and methods provide enhanced radiant drying capabilities for a printing system utilizing temperature control of a thermally conductive drum. One embodiment comprises a radiant dryer and a control system. The radiant dryer includes a thermally conductive drum and a plurality of radiant energy sources disposed along an outside surface of the drum. The energy sources dry a colorant applied to a print medium in contact with the drum. The radiant dryer further includes a cooling system that applies a coolant to the drum to remove heat from the drum. The control system measures the temperature of the drum, determines a difference between the temperature of the drum and a target temperature, and directs the cooling system to vary an application of the coolant to the drum based on the difference to maintain the drum at the target temperature.
摘要:
Systems and methods are provided for inserting low temperature gas into dryers of printing systems. The system comprises a dryer, which includes a heating element and a flow generator. The heating element is within an interior of the dryer and is able to heat a web of printed media as the web travels through the interior. The flow generator is within the interior and is operable to directly project an impinging jet of gas along a width of the web that deflects heated air proximate to the web. The gas is cooler than the heated air.
摘要:
Systems and methods provide targeted cooling for portions of print media during a radiant drying process. One embodiment comprises a radiant dryer and a control system. The radiant dryer includes a radiant energy source within an interior of the radiant dryer that dries a colorant onto a continuous-form medium. The radiant dryer further includes a plurality of independently actuated cooling jets within the interior that apply a cooling gas to the medium. The control system determines regions on the medium where the colorant is at risk of overheating, and directs the cooling jets to apply the cooling gas to the regions.