magicolor 1680MF
magicolor 1690MF
OUTLINE
COMPOSITION/
OPERATION
Theory of Operation
V
er. 1.0
N
ov. 200
8
ii
10.1
Composition
.......................................................................................................
23
10.2
Drive
...................................................................................................................
23
10.3
Operation
............................................................................................................
24
10.3.1
Photo conductor drive mechanism
.............................................................
24
10.3.2
Photo conductor cleaning mechanism
........................................................
24
11.
Charge corona section
..........................................................................................
25
11.1
Composition
.......................................................................................................
25
11.2
Operation
............................................................................................................
25
11.2.1
Charge corona control
................................................................................
25
12.
Developing section
................................................................................................
26
12.1
Composition
.......................................................................................................
26
12.2
Drive
...................................................................................................................
27
12.3
Operation
............................................................................................................
27
12.3.1
Toner flow
...................................................................................................
27
12.3.2
Toner Cartridge Rack
..................................................................................
2
8
12.3.3
Developing Roller drive
...............................................................................
34
12.3.4
Developing bias
..........................................................................................
34
12.3.5
Developing system
......................................................................................
35
12.3.6
Toner cartridge (TC) life control
..................................................................
35
13.
1st transfer section
................................................................................................
36
13.1
Composition
.......................................................................................................
36
13.2
Drive
...................................................................................................................
37
13.3
Operation
............................................................................................................
3
8
13.3.1
1st transfer output control
...........................................................................
3
8
13.3.2
Transfer belt cleaning mechanism
..............................................................
3
8
13.3.3
Cleaning blade pressure/retraction mechanism
..........................................
39
13.3.4
Belt Positioning Sensor
...............................................................................
42
13.3.5
AT
V
C (Auto transfer voltage control)
...........................................................
43
13.3.6
Image stabilization control item
..................................................................
44
14.
2nd transfer section/ media separation
.................................................................
45
14.1
Composition
.......................................................................................................
45
14.2
Drive
...................................................................................................................
46
14.3
Operation
............................................................................................................
47
14.3.1
2nd transfer roller pressure/retraction control
.............................................
47
14.3.2
2nd transfer roller cleaning
.........................................................................
4
8
14.3.3
N
eutralization and separation of media
......................................................
49
15.
Toner collecting section
.........................................................................................
50
15.1
Composition
.......................................................................................................
50
15.2
Drive
...................................................................................................................
50