Canon mf6600 Series Service Manual

44 4-474-47Disassembly/Assembly > Document Exposure, Feed System > Removing the Reader Unit Upper Cover > ProcedureDisassembly/Assembly > Document Exposure, Feed System > Removing the Reader Unit Upper Cover > Procedure2) Remove the Standard White Plate [1].2 Claws [2][1][2][2]x23) Remove the Reader Unit Upper Cover [1].2 Screws [2]7 Claws [3][1][2] [2][3][3][3][3]x2x7CAUTION:Since the copyboard glass is attached to the upper cover, handle it carefully to preventdropping or breakage.•••F-4-98F-4-98F-4-99F-4-99Procedure After Replacing the Copyboard Glass:After replacing the copyboard glass, go through the following procedure.1) Enter the service mode.SCAN>SCAN NUMERIC2) Input the value on the bar-code label (4 digit each) to [213], [214] and [215] items.XXXX YYYY ZZZZInput to 215Input to 214Input to 213•F-4-100F-4-100After replacing CIS Units:After replacing the contact sensor, go through the following procedure and make sure toadjust the output between channels.1) Enter the service mode.2) Press the arrow key on the control panel to display “TEST MODE”.3) Press OK key.4) Press 2 key and “SCAN TEST” is displayed.5) Press 1 key and “SHADING” is displayed.