magicolor 4650EN
magicolor 4650DN
Outline
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Theory of operation Ver. 1.0 Nov. 2007
ii
9.2
Operation
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23
9.2.1
Print unit life detection
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23
9.2.2
Print unit life control
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23
10.
Print unit section (photo conductor)
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24
10.1
Composition
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24
10.2
Drive
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24
10.3
Operation
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25
10.3.1
Photo conductor drive mechanism
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25
10.3.2
Photo conductor post-exposure control
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26
10.3.3
Photo conductor total exposure control upon recovery
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26
10.3.4
Photo conductor small amount rotation control
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26
11.
Print unit section (charge corona)
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27
11.1
Composition
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27
11.2
Operation
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28
11.2.1
Charge corona unit ON/OFF control
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28
11.2.2
Ozone ventilation mechanism
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28
12.
Print unit section (developing)
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29
12.1
Composition
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29
12.2
Operation
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30
12.2.1
Developing drive control
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30
12.2.2
Toner collecting port shutter mechanism
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31
12.2.3
Toner flow
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32
12.2.4
Developing system
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33
12.2.5
Cleaning mechanism
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34
12.2.6
Toner collecting port shutter mechanism
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34
13.
Transfer section (1st transfer)
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35
13.1
Composition
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35
13.2
Drive
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36
13.3
Operation
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37
13.3.1
1st transfer output control
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37
13.3.2
1st transfer roller pressure/retraction control
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37
13.3.3
1st transfer roller pressure operation
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38
13.3.4
1st transfer roller retraction operation
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39
13.3.5
1st transfer roller pressure/retraction position control
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40
13.3.6
Transfer belt cleaning mechanism
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41
13.3.7
1st transfer belt cleaning control
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42
13.3.8
1st transfer belt backward rotation control
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42
13.3.9
Toner collecting port shutter mechanism
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43