C. Basic Sequence of Operations1. Basic Sequence of Operations at Power-On (1/2)When the surface temperature of the fixing roller is 75°C or less and, in addition, theambient temperature is 17°C or more at power-on,Figure 2-103Primary, transfer,separation, pre-transfercharging wire cleaning motorINTRPower switchONFixing sub heater(H2)Main motor (M1)Primary chargingassemblyDeveloping bias DCDeveloping bias ACPre-transfer chargingassembly DCPre-transfer chargingassembly ACTransfer chargingassemblySeparation chargingassembly DCSeparation chargingassembly ACPre-exposure LEDBlanking exposureLED *+,-.//00Fixing main heater(H1)Surface potentialcontrol timingScanning lamp (LA1)*1 *1V D V L1 VL2*2*1WMUP195°CCNTR1 CNTR2 LSTR STBYAbout 10 sec afterend of CNTR2Controlledto 200°C*3*1 During potential control (CNTR1, CNTR2), V D and V L1 are measured; therefore, blankingexposure lamp LEDs corresponding to the potential sensor are turned OFF.*2 If the surface temperature of the fixing roller is 100°C or less when the power switch is turnedON, the primary/pre-transfer/transfer/separation charging wire is cleaned.(Cleaning is also executed every 2,000 copies.)*3 Wait-up state ends in 10 sec after the end of potential control to speed up warm-up time.COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 2 BASIC OPERATION2-4Download service manual and resetter printer at http://printer1.blogspot.com
