Fire control and containment in production printing systems with radiant dryers
First Claim
1. A method of controlling and containing fire in a production printing system that comprises a dryer unit, an air intake fan, and an exhaust fan, method comprising:
- monitoring air pressure and air temperature sensors to detect temperature and pressure changes in the air within an enclosure surrounding the dryer unit;
detecting a fire event based on the detected air pressure and air temperature changes in the enclosure; and
upon detecting the fire event;
closing doors of the enclosure to prevent the print medium from entering the enclosure;
decreasing a speed of the air intake fan; and
increasing a speed of the exhaust fan to reduce air pressure in the enclosure to a level sufficient to suppress a fire.
1 Assignment
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Accused Products
Abstract
Fire control and containment for a production printing system that includes a dryer unit, an air intake fan, and an exhaust fan. A fire control and containment system includes an enclosure surrounding the dryer unit. The enclosure includes controllable doors, a temperature sensor, and an air pressure sensor in the enclosure. The fire containment and control system also includes a controller operable to detect a fire event based on changes in air pressure and air temperature in the enclosure detected by the air pressure and air temperature sensors. In response to detecting the fire event, the controller closes the doors of the enclosure to prevent the print medium from entering, controls the air intake fan and the exhaust fan to reduce the air pressure in the enclosure, and controls the dryer unit to reduce temperature in the enclosure to suppress fire.
18 Citations
13 Claims
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1. A method of controlling and containing fire in a production printing system that comprises a dryer unit, an air intake fan, and an exhaust fan, method comprising:
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monitoring air pressure and air temperature sensors to detect temperature and pressure changes in the air within an enclosure surrounding the dryer unit; detecting a fire event based on the detected air pressure and air temperature changes in the enclosure; and upon detecting the fire event; closing doors of the enclosure to prevent the print medium from entering the enclosure; decreasing a speed of the air intake fan; and increasing a speed of the exhaust fan to reduce air pressure in the enclosure to a level sufficient to suppress a fire. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A non-transitory computer readable medium comprising instructions that, when executed by a controller, direct the controller to control and contain fire in a production printing system that comprises a dryer unit, an air intake fan, and an exhaust fan, the instructions further directing the controller to:
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monitor air pressure and air temperature sensors to detect temperature and pressure changes in the air within an enclosure surrounding the dryer unit; detect a fire event based on the detected air pressure and air temperature changes in the enclosure; and upon detecting the fire event; close doors of the enclosure to prevent the print medium from entering the enclosure; decrease a speed of the air intake fan; and increase a speed of the exhaust fan to reduce air pressure in the enclosure to a level sufficient to suppress a fire. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification