Canon imagePROGRAF iPF5000 Series Service Manual

Also see for iPF5000 - imagePROGRAF Color Inkjet Printer: Troubleshooting guide Troubleshooting guide Brochure & specs Brochure Information sheet

Contents

Canon imagePROGRAF iPF5000 Series Service Manual Manual pdf 52 page image

Chapter 22-122.3.2.4 Printhead2.3.2.4.1 Structure of Printhead0013-4821A printhead incorporates six nozzle arrays. Each nozzle can be controlled individually so that a six-color discharge action can be performed by a single printhead.a) Nozzle arraysA total of 2560 nozzles are arranged in a two-column staggered pattern.In each column, 1280 nozzles are arranged in a staggered pattern at intervals of 600 dpi, forming a 2560-nozzle arranged at intervals of 1200 dpi.F-2-10b) Nozzle structureInk supplied from the ink tank is filtered by a mesh ink filter, and the supplied to the nozzles.Ink is supplied from the shared ink chamber to the nozzles. When the head driving current is applied to the nozzle heater, ink boils and form bubbles so that inkdroplets are discharged from the nozzles.F-2-112.3.2.5 Purge Unit2.3.2.5.1 Functions of Purge Unit0013-4347To maintain high print quality, the purge unit performs maintenance of the nozzles o the printhead.The purge unit supports a capping function, cleaning function, and ink supply function.a) Capping functionThe capping function presses the cap of the purge unit against the face plate on the nozzle section of the printhead to prevent nozzle drying and dust adhesion.Capping is performed when printing is complete, at the start of the suction operation, and when switching to the standby state due to an error.The capping function also establishes the ink passage between the printhead and purge unit.b) Cleaning functionThe cleaning function restores the printhead to the state where ink can be easily discharged from nozzles. This function includes the following three types of oper-ations.02 13255925572558255602 13255925572558255602 13255925572558255602 13255925572558255602 13255925572558255602 1325592557255825565/600inch1/1200inch82/600inchResinSillicon plateHeaterShared ink chamberHeater