Chapter 55-22/ iR4570N / iR2230 / / / iR3530 /Be sure to enter the value indicated on the CIS label attached to the contactimage sensor (CIS) using the following service mode item:COPIER>ADJUST>CCD>MTF-MG(main scanning direction MTR correction value)F-5-65Be sure also to update the value indicated on the service label found behindthe left cover of the reader unit so that it is identical to the value indicated onthe CIS label.Reference:At time of shipment from the factory, no CIS label is attached.5.4.5 Copyboard Cover Open/Close Sensor5.4.5.1 Removing the Reader Rear Cover 0007-3437iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N // iR4570N / iR2230 / / / iR3530 /1) Disconnect the ADF communications cable [1] (if equipped with an ADF)F-5-662) Open the copyboard cover (or the ADF).3) Remove the 4 screws [1], and detach the reader rear cover [2].F-5-675.4.5.2 Removing the Copyboard Cover Open/ClosedSensor (front/rear) 0007-0753iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N // iR4570N / iR2230 / / / iR3530 /1) Disconnect the 2 connectors [1], and remove the screw [2]; then, detachthe sensor base [3].F-5-682) Detach the 2 sensors [1] from the sensor base.F-5-695.4.6 Contact Sensor HP Sensor5.4.6.1 Removing the Copyboard Glass 0007-3439iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N // iR4570N / iR2230 / / / iR3530 /1) Open the copyboard cover (or ADF).2) Remove the 2 screws [1], and detach the glass retainer [2]; then, detachthe copyboard glass [3].F-5-70When removing the copyboard glass, take care not to touch the following:- glass surface- standard white plateThe presence of dirt can cause white/black lines in the images. If dirt isfound, clean it with lint-free paper moistened with alcohol.XXMTF-MG[1][1] [2][1]
