Canon MF4500 Series Service Manual

Canon MF4500 Series Service Manual Manual pdf 223 page image

55 5-25-2Adjustment > Mechanical Adjustment > Confirming Nip WidthAdjustment > Mechanical Adjustment > Confirming Nip WidthMechanical AdjustmentConfirming Nip WidthCaution :Be sure to follow the procedures below, otherwise the fixing film or the fixing sleevemay be damaged.The nip width of the fixing unit is not adjustable in this printer, however, the incorrect nip widthmay cause the faulty fixing.Follow the procedures below to check the nip width.1) Prepare an all-black print of A4 size made by the same type of EP Toner cartridge for thisprinter before visiting the customer site.2) Load the printed sheet facing DOWN on the pickup tray.3) Print a test-page.4) Turn off the printer when the leading edge of the paper appears in the face-down deliveryslot.Wait for 60 seconds and open the cartridge door to remove the paper from the printer.5) Measure the width of the glossy band across the paper and check if it is meeting therequirements below.Wasp/Horsethief/Blackrock• Center (a): 5.5mm to 8.1mm• Right and left (b, c): 5.5mm to 8.1mmFeed out directioncabCenterofA4-sizedpaperF-5-1