Chapter 22-17F-2-16b) WipersThe wipers are operated by the purge motor and perform the wiping of six nozzle arrays simultaneously of the printhead. One pairs of wiper blades areused to provide improved wiping performance. The wiping operation is performed in a "slide wipe" style where the wiper blades slide based on the forwardrotation of the purge motor. This action is performed after the printing or suction operations using a constant-speed movement in the front direction asviewed from the printer front.The wiper cam raises the wiper unit to the wiping position. The wiper blade, which is positioned perpendicular to the printhead, wipes the entire face plateof the printhead, and then the narrow blade is used to wipe the nozzle array.After wiping, the wiper blades are cleaned before they are set at the wiping position so that maximum wiping performance can be maintained.In the wiper blade cleaning, ink that was wiped from the head section is rubbed off by an ink scrapping receptacle connected to the maintenance cartridge,and then the blades are wiped off with a blade cleaner.F-2-17c) PumpsIn this printer, tube pumps press on the ink tubes using push rollers to produce negative pressure and enable suction of the ink. Two rollers are used topress a single tube one after the other to allow flexible control over the ink suction volume.The rotation timing of the push rollers in the suction pump is detected by the pump home position sensor, and the rotation speed is controlled by the drivingof the pump motor (stepping motor).Cap sensorCapPump motorPurge motorPump homeposition sensorWipersCarriage lockpinPrintheadBlade cleanerInk scrapping receptacleCapWiper bladeWipers
