3–117OPERATIONS AND TIMINGCOPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)DescriptionExecute the mode after supplying toner during installa-tion work.Use the mode when checking the nip or when adjustingthe pressure of the lower fixing roller.Press the zoom +key or the zoom -key to change thevalue.A press on the Start key causes the lamp to turn ON forabout 2.2 sec. (later E220 error happens)Factory onlyFactory onlySee p. 3-133.F. Operation/Inspection Mode (‘4’)• To start inspection mode, press ‘4’ (numeric keypad) and then the AE key.• To select an item, press the appropriate number on the numeric keypad and then the Start key.• To execute the mode, press the Start key.• To end the mode, press the Stop key, thereby returning to item selection.• If the mode is designed to stop automatically, the machine will automatically return to item selection afterending the mode.No.401402403406407408409410411412412413414415417418419450ItemDeveloping assembly idle rotationPrimary roller cleaningTransfer roller cleaningNip checkHalogen lamp intensity adjustingScanning lamp ON checkControl panel all ONScanner forward stop in AEPre-exposure lamp ONAPVC measuringDrum settingCool drum settingAutomatic drum settingFixing offset adjustmentJam history clearError history clearScanner AP initializationBack-up RAM clearTable 3-613