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MX-M905  EXTERNAL VIEW AND INTERNAL STRUCTURE  4 – 17

* For AC-F1 to AC-F4

For continued protection against risk of fire.

Replace only with the same type and rating of fuse.

HLTS1

Thermostat

125VAC 15A
250VAC 10A

Fusing unit

HLTS2

Thermostat

125VAC 15A
250VAC 10A

Fusing unit

AC-F1*

Fuse

20A 250V

AC PWB

AC-F2*

Fuse

20A 250V

AC PWB (Except North America)

AC-F3*

Fuse

T2.0AH 250V

AC PWB

AC-F4*

Fuse

T2.0AH 250V

AC PWB (Except North America)

F101

Fuse

12A 250V

DC Power PWB

F102

Fuse

2A 250V

DC Power PWB

F601

Fuse

6.3A 250V

DC Power PWB

F602

Fuse

6.3A 250V

DC Power PWB

F603

Fuse

6.3A 250V

DC Power PWB

F604

Fuse

6.3A 250V

DC Power PWB

F605

Fuse

6.3A 250V

DC Power PWB

AC-F2

AC-F1

AC-F4

AC-F3

DC POWER PWB

F101

F102

F601

F602

F603

F604

F605

HLTS1

HLTS2

AC PWB

MX-M905  EXTERNAL VIEW AND INTERNAL STRUCTURE  4 – 18

1

Document pickup roller

Picks up a document and transport it to the paper feed roller.

2

Paper feed roller

Performs paper feed operation of a document.

3

Separation roller

Separates a document, preventing double feed.

4

No. 1 resist roller (Drive)

Performs resist of document transport.

5

No. 1 resist roller (Idle)

Apply a pressure to a document and the resist roller to give transport drive of the resist roller to the document.

6

Transport roller 1 (Drive)

Transports document from No. 1 resist roller to No.2 resist roller.

7

Transport roller 1 (Idle)

Applies a pressure to document and the transport roller to provide a transport power of the transport roller to document.

8

Transport roller 2 (Drive)

Transports document from the transport roller 1 to No.2 resist roller.

9

Transport roller 2 (Idle)

Applies a pressure to document and the transport roller to provide a transport power of the transport roller to document.

10

No. 2 resist roller (Drive)

Performs resist of document transport.

11

No. 2 resist roller (Idle)

Apply a pressure to a document and the resist roller to give transport drive of the resist roller to the document.

12

Platen roller

Apply a pressure to document to prevent fluctuation in the document operation.

13

Transport roller 3 (Drive)

Transports document from the platen roller to the transport roller 4.

14

Transport roller 3 (Idle)

Applies a pressure to document and the transport roller to provide a transport power of the transport roller to document.

15

Transport roller 4 (Drive)

Transport document from the transport roller 3 to the transport roller 5.

16

Transport roller 4 (Idle)

Applies a pressure to document and the transport roller to provide a transport power of the transport roller to document.

17

Transport roller 5 (Drive)

Transport document from the transport roller 4 to the paper exit roller.

18

Transport roller 5 (Idle)

Applies a pressure to document and the transport roller to provide a transport power of the transport roller to document.

2

5

7

8

17

3

19 20

4

9

6

1

10

22

68

72

73

67

15
13

12

18

16

14

11

21

71

70

74

75

69

83

82

42

45

41

46

47

48

52

38

61

51

55

54

53

56

57

59

81

60

80

79
78

77
76

58

37

49

43

44

39

40

50

23

27

30

25

24

35
36

33

66

62
63

65

64

34

26

31
32

28
29

MX-M905  EXTERNAL VIEW AND INTERNAL STRUCTURE  4 – 19

19

Paper exit roller (Drive)

Discharges document.

20

Paper exit roller (Idle)

Applies a pressure to document and the transport roller to provide a transport power of the transport roller to document.

21

Paper pickup roller  
(Tandem No. 1 paper feed tray)

Feeds paper to the paper feed roller.

22

Paper feed roller 
(Tandem No. 1 paper feed tray)

Feeds paper to the paper transport section.

23

Separation roller 
(Tandem No. 1 paper feed tray)

Separates paper to prevent double feed.

24

Paper pickup roller 
(Tandem No. 2 paper feed tray)

Feeds paper to the paper feed roller.

25

Paper feed roller 
(Tandem No. 2 paper feed tray)

Feeds paper to the paper transport section.

26

Separation roller 
(Tandem No. 2 paper feed tray)

Separates paper to prevent double feed.

27

Paper pickup roller 
(No. 3 paper feed tray)

Feeds paper to the paper feed roller.

28

Paper feed roller 
(No. 3 paper feed tray)

Feeds paper to the paper transport section.

29

Separation roller 
(No. 3 paper feed tray)

Separates paper to prevent double feed.

30

Paper pickup roller 
(No. 4 paper feed tray)

Feeds paper to the paper feed roller.

31

Paper feed roller 
(No. 4 paper feed tray)

Feeds paper to the paper transport section.

32

Separation roller 
(No. 4 paper feed tray)

Separates paper to prevent double feed.

33

Transport roller 8 (Drive)

Transports paper from the tandem No. 1 paper feed tray to the transport roller 9.

34

Transport roller 8 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

35

Transport roller 9 (Drive)

Transports paper from the transport roller 8 to the transport roller 10.

36

Transport roller 9 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

37

Transport roller 10 (Drive)

Transports paper from the transport roller 9 to the transport roller 11.

38

Transport roller 10 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

39

Transport roller 1 (Drive)

Transports paper from the paper feed tray 4 to the transport roller 2.

40

Transport roller 1 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

41

Transport roller 2 (Drive)

Transports paper from the transport roller 1 to the transport roller 2.

42

Transport roller 2 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

43

Transport roller 3 (Drive)

Transports paper from the paper feed tray 3 to the transport roller 4.

44

Transport roller 3 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

45

Transport roller 4 (Drive)

Transport paper from the transport roller 2 and the transport roller 3 to the transport roller 5.

46

Transport roller 4 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

47

Transport roller 5 (Drive)

Transports paper from the transport roller 4 to the transport roller 7.

48

Transport roller 5 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

49

Transport roller 6 (Drive)

Transports paper from the tandem No. 2 paper feed tray to the transport roller 7.

50

Transport roller 6 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

51

Transport roller 7 (Drive)

Transports paper from the transport roller 5 and the transport roller 6 to the transport roller 11.

52

Transport roller 7 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

53

Transport roller 11 (Drive)

Transports paper from the transport roller 7 and the transport roller 10 to the transport roller 14.

54

Transport roller 11 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

55

Transport roller 12 (Drive)

Transports paper from the paper feed option to the transport roller 13.

56

Transport roller 13 (Drive)

Transports paper from the transport roller 12 to the transport roller 14.

57

Transport roller 13 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

58

Transport roller 14 (Drive)

Transports paper from the transport roller 11 and the transport roller 13 to the PS roller.

59

Transport roller 14 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

60

PS roller (Drive)

Transports paper to the transfer section. 
Controls the paper transport timing to adjust relative relations between images and paper.

61

PS roller (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the PS roller to paper.

62

Upper heat roller

Heats toner on paper, and press and fuse paper.

63

Lower heat roller

Applies a pressure to the upper heat roller.

64

Transport roller 15 (Drive)

Transports paper from the upper and lower heat rollers to the transport roller 16.

65

Transport roller 15 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

66

Transport roller 16 (Drive)

Transports paper from the transport roller 15 to the paper exit roller when discharging paper in face-up./
Transports paper from the transport roller 15 to the reverse roller 2 when discharging paper in face-down./
Transports paper from the transport roller 15 to the transport roller 17 when duplex printing.

67

Transport roller 16 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

68

Decurler roller (Drive)

Decurls paper transported from the transport roller 16 in duplex printing, and transports paper to the reverse roller 1.

69

Decurler follower roller (Idle)

Applies a pressure to paper and the decurler unit, decurling the paper and providing transport power of the transport 
roller.

70

Reverse roller 1 (Drive)

Transports paper from the transport roller 17 to the reverse roller 2 when duplex printing.

71

Reverse roller 1 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the reverse roller to paper.

72

Reverse roller 2 (Drive)

Transports paper from the reverse roller 1 to the transport roller 18 when duplex printing /
Switches back paper that was transported from the transport roller 16, and transports it to the transport roller when 
discharging paper in face-down.

73

Reverse roller 2 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

MX-M905  EXTERNAL VIEW AND INTERNAL STRUCTURE  4 – 20

74

Transport roller 18 (Drive)

Transports paper from the reverse roller 2 to the transport roller 19 when duplex printing.

75

Transport roller 18 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

76

Transport roller 19 (Drive)

Transports paper from the transport roller 18 to the transport roller 20 when duplex printing.

77

Transport roller 19 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

78

Transport roller 20 (Drive)

Transports paper from the transport roller 19 to the transport roller 21 when duplex printing.

79

Transport roller 20 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

80

Transport roller 21 (Drive)

Transports paper from the transport roller 20 to the transport roller 11 when duplex printing.

81

Transport roller 21 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.

82

Paper exit roller (Drive)

Discharges paper that was transported from the transport roller 16 or the reverse roller 2.

83

Paper exit roller (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to paper.