HP 2420 Service Manual - Page 75
Theory of operation, contents - drum
UPC - 829160289205
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5 Theory of operation Chapter contents Chapter contents...61 Introduction...62 Internal components...63 Timing...64 Engine control system...66 Laser/scanner system...68 Pickup/feed/delivery system...69 Image-formation system...71 Step 1: Primary charging 72 Step 2: Laser beam exposure 72 Step 3: Developing...73 Step 4: Transfer...73 Step 5: Separation...74 Step 6: Fusing...74 Step 7: Drum cleaning...75 Print cartridge memory system 76 ENWW Chapter contents 61
5
Theory of operation
Chapter contents
Chapter contents
......................................................................................................................
61
Introduction
...............................................................................................................................
62
Internal components
.................................................................................................................
63
Timing
.......................................................................................................................................
64
Engine control system
..............................................................................................................
66
Laser/scanner system
..............................................................................................................
68
Pickup/feed/delivery system
....................................................................................................
69
Image-formation system
...........................................................................................................
71
Step 1: Primary charging
...................................................................................................
72
Step 2: Laser beam exposure
...........................................................................................
72
Step 3: Developing
............................................................................................................
73
Step 4: Transfer
.................................................................................................................
73
Step 5: Separation
.............................................................................................................
74
Step 6: Fusing
....................................................................................................................
74
Step 7: Drum cleaning
.......................................................................................................
75
Print cartridge memory system
................................................................................................
76
ENWW
Chapter contents
61