Print engine with end moldings
View Patent ↗A print engine for a printer includes an elongate support frame. A pinch roller assembly is rotationally mounted relative to the support frame and can engage and feed the print media along a print media path. A pair of opposed print head assemblies is mounted on the elongate support frame and the print media path is defined between the print head assemblies. The printhead assemblies are configured to perform duplex printing on print media fed along the print media path. Each print head assembly includes a printhead module operatively mounted to the support frame and has a printhead configured to print ink onto the fed print media. The printhead module defines a plurality of ink galleries for storing respective types of ink to be printed by the printhead. A pair of end moldings is operatively mounted to the printhead module at either end of the support frame and defines tubular ink inlets in fluid communication with respective ink galleries.
1. A print engine for a printer, the print engine comprising
an elongate support frame;
a pinch roller assembly rotationally mounted relative to the support frame, and which can engage and feed the print media along a print media path;
a pair of opposed print head assemblies mounted on the elongate support frame and the print media path being defined between the print head assemblies and the printhead assemblies being configured to perform duplex printing on print media fed along the print media path, each print head assembly comprising:
a printhead module operatively mounted to the support frame and comprising a printhead configured to print ink onto the fed print media, the printhead module defining a plurality of ink galleries for storing respective types of ink to be printed by the printhead, the printhead module further defining an arcuate end portion in which a pinch roller of the pinch roller assembly is received, the printhead being located at the end of the arcuate end portion proximal to a pinching zone of the pinch roller assembly; and
a pair of end moldings operatively mounted to the printhead module at either end of the support frame and defining tubular ink inlets in fluid communication with respective ink galleries.
2. A print engine as claimed in claim 1 , wherein each printhead assembly comprises another printhead module defining another arcuate end portion in which the first-mentioned printhead module is received.
3. A print engine as claimed in claim 2 wherein each printhead module defines an air channel adjacent each printhead for feeding air to the printhead from an air hose.
4. A print engine as claimed in claim 2 wherein each printhead module is substantially J-shaped.
5. A print engine as claimed in claim 1 , wherein a first pinch roller of the pinch roller assembly is coupled to a motor and a second pinch roller is driven by the first pinch roller via a set of gears.
6. A print engine as claimed in claim 1 , wherein the galleries extend along the support frame and are substantially parallel.
7. A printer comprising a print engine as claimed in claim 1 , the printer comprising an elongate chassis with the print engine mounted at one end of the chassis and fastening means which enables a plurality of printers to be fastened together, in a releasable manner, to form a skewed stack of printers.