COPYRIGHT © 1999 CANON INC. CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 6-29CHAPTER 6 IMAGE FORMATION SYSTEMB. Locking the Developing AssemblyWhen the developing assembly locking motor (PM1 through PM4) turns on, the developingassembly locking cam starts to rotate to lock the developing assembly to the photosensitive drum.Figure 6-402 shows the cyan developing assembly in its locked state.When making a 4-color copy, locking will be M, C, Y, and Bk in sequence.Item DescriptionDeveloping assembly locking motor Pulse motor; locks and unlocks each developing(PM1, PM2, PM3, PM4) assembly.Developing assembly HP sensor Photointerrupters; the home position is where the(PS49, PS51, PS53, PS55) developing assembly is in its unlocked state.Table 6-401BkMCYPM3PM2PM1PM4PS53PS51PS49PS55Photosensitivedrum Locking springDeveloping assemblylocking camDeveloping assembly locking driver PCBDC driver PCBFigure 6-402
