Sharp AR-C170 (serv.man23) Service Manual ▷ View online
AR-C170M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 5
E. Cross section
No.
Parts
Note
Name
Function
1
No. 3 mirror
Leads a document image to the CCD.
2
No. 2 mirror
Leads a document image to No. 3 mirror.
3
No. 1 mirror
Leads a document image to No. 2 mirror.
4
Scanner lamp
Radiates light on a document for the CCD to scan the document image.
5
Yellow toner cartridge
Attaches yellow toner to electrostatic latent images on the
photoconductor.
photoconductor.
6
Magenta toner cartridge
Attaches magenta toner to electrostatic latent images on the
photoconductor.
photoconductor.
7
Cyan toner cartridge
Attaches cyan toner to electrostatic latent images on the photoconductor.
8
Black toner cartridge
Attaches black toner to electrostatic latent images on the photoconductor.
9
Discharge lamp
Discharges the photoconductor.
10
Main charger unit
Charges the magenta photoconductor negatively.
11
LED unit
Converts the color component image signal sent from the ICU PWB into
LED light, and radiate it to the OPC drum.
LED light, and radiate it to the OPC drum.
12
Doctor blade
Regulates the toner quantity on the developing roller.
13
Supply roller
Supplies toner to the developing roller.
14
Developing roller
Attaches toner to the photoconductor.
15
Cleaning blade
Cleans residual toner from the photoconductor.
16
OPC drum unit
Forms electro-static latent images.
17
CCD lens
Reduces document images (light) and projects it to the CCD.
18
CCD PWB
Reads document images (photo signals) and converts them into electrical
signals.
signals.
19
Transfer roller (K)
Applies the transfer voltage to the transfer belt.
20
Transfer roller (C)
Applies the transfer voltage to the transfer belt.
21
Transfer roller (M)
Applies the transfer voltage to the transfer belt.
22
Transfer roller (Y)
Applies the transfer voltage to the transfer belt.
37
39
36
38
40
41
42
44
43
45
46
48
47
49
50
52
51
57
58
59
53
54
56
55
24
25
26
18
72
71
69
68
8
7
29
28
27
2
1
3
4
5
6
17
61
9
11
12
13
15
10
14
19
16
60
20
62
65
74
73
77 76
66
75 70 67
63,64
21
22
23
30
31
34
35
32
33
AR-C170M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 6
23
Transfer belt
Transfers toner images of the photoconductor onto paper.
24
Waste toner box (Transfer section)
Collects waste toner on the transfer belt.
25
Lift-up unit
Lifts the transfer belt.
26
Paper pickup roller (No. 1 tray)
Sends paper to the paper feed roller.
27
Idle roller
Applies a pressure to paper and the transport roller to provide transport
power of the transport roller to paper.
power of the transport roller to paper.
28
Manual paper feed roller
Feed paper to the paper transport section.
29
Paper pickup roller
Sends paper to the paper feed roller.
Manual paper
feed section
feed section
30
Separation roller
Separates paper to prevent double feed.
31
Manual paper transport roller
Transports paper to the resist roller.
32
Upper resist roller
Transports paper to the transfer section.
33
Lower resist roller
Transports paper to the transfer section.
34
Idle roller
Prevents paper skew.
35
Paper transport roller 1
Transports paper to the resist roller.
36
Paper feed roller (No. 1 tray)
Feed paper to the paper transport section.
37
Separation roller (No. 1 tray)
Separates paper to prevent double feed.
38
Idle roller
Applies a pressure to paper and the transport roller to provide transport
power of the transport roller to paper.
power of the transport roller to paper.
39
Paper transport roller 2
Transports paper to the transport roller 1.
40
Fusing unit
Fuses toner on paper.
41
Lower heat roller thermistor
Detects the temperature on the fuser roller surface.
42
Lower heat roller thermostat
Detects an abnormally high temperature and turns off the heater lamp.
43
Lower heat roller
Heats and presses toner on paper to fuse toner on paper.
44
Lower heater lamp
Heats the lower fuser roller.
45
Lower separation pawl
Mechanically separates paper which was not separated naturally from the
lower heat roller.
lower heat roller.
46
Fusing transport roller
Transports paper after fusing.
47
Idle roller
Applies a pressure to paper and the transport roller to provide transport
power of the transport roller to paper.
power of the transport roller to paper.
48
Gate
Switches the paper exit path. (face up, face down)
49
Upper heater lamp
Heats the heat roller.
50
Upper heat roller
Heats and presses toner on paper to fuse toner on paper.
51
OPC drum
Forms latent static electrostatic images with LED light.
52
Upper heat roller thermistor
Detects the temperature on the heat roller surface.
53
Upper heat roller thermostat
Detects an abnormally high temperature and turns off the heater lamp.
54
Idle roller
Applies a pressure to paper and the transport roller to provide transport
power of the transport roller to paper.
power of the transport roller to paper.
55
Transfer belt cleaning blade
Cleans toner on the transfer belt.
56
Paper transport roller 3
Transport paper to the paper exit roller.
57
Belt waste toner transport shaft
Transports waste toner on the transfer belt to the waste toner box.
58
Paper exit roller
Discharges paper to outside of the machine.
59
Idle roller
Applies a pressure to paper and the transport roller to provide transport
power of the transport roller to paper.
power of the transport roller to paper.
60
Drum
Forms electrostatic latent images by LED light.
61
Document length sensor (L2)
Detects the tray document length.
62
Document length sensor (L1)
Detects the tray document length.
63
Document set sensor (W0)
Detects presence of document.
64
Document width sensor (W1, W2, W3)
Detects the document width.
65
Pickup roller
Picks up a document.
66
Paper feed roller
Feeds and transports a document.
67
Paper entry sensor (PAPER)
Detects transport of a document.
68
PS roller
Synchronizes the document lead edge and the image lead edge.
69
PS follower roller
Synchronizes the document lead edge and the image lead edge.
70
Transport roller
Transports a document.
71
Transport follower roller
Transports a document.
72
Paper exit sensor (PO)
Detects transport of a document.
73
Paper exit follower roller
Discharges a document.
74
Paper exit roller
Discharges a document.
75
Reverse gate
Opens/closes the document reverse path.
76
Paper exit gate
Switches the discharged paper path to the intermediate tray or to the
paper exit tray.
paper exit tray.
77
Intermediate tray
Receives paper in document reverse operation.
No.
Parts
Note
Name
Function
AR-C170M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 7
F. Motors, clutches, solenoids, fans
No.
Parts
Code,
signal name
Type
Name
Function
1
Exit select gate solenoid
Drives the exit path select gate.
GSS
Electromagnetic solenoid
2
Offset motor (Slide motor)
Drives the paper exit offset.
OSM
Stepping motor
3
Fusing drive motor
Drives the fusing unit.
FUSM
Stepping motor
4
Exhaust fan motor 1
Exhaust and cools the fusing section.
VFMP
DC motor
5
Exhaust fan motor 2
Exhaust and cools the fusing section.
VFMS
DC motor
6
Power unit cooling fan
motor
motor
Cools the power unit.
PSFM
DC motor
7
Drum motor (Y)
Drives the yellow photoconductor unit.
DM_Y
Stepping motor
8
Drum motor (M)
Drives the magenta photoconductor unit.
DM_M
Stepping motor
9
Drum motor (C)
Drives the cyan photoconductor unit.
DM_C
Stepping motor
10
Drum motor (K)
Drives the black photoconductor unit.
DM_K
Stepping motor
11
Printer controller cooling
fan motor
fan motor
Cools the printer controller.
12
PS motor
Drives and turns ON/OFF the resist roller.
PSM
Stepping motor
13
Process cooling fan motor
Exhaust and cools the process section.
PCFM
DC motor
14
Scanner motor
Drives the scanner unit.
SM
Stepping motor
15
PS front clutch
Transmits power of the paper feed motor to the manual
paper feed unit. (Controls ON/OFF.)
paper feed unit. (Controls ON/OFF.)
MTRC
Electromagnetic clutch
16
Paper feed motor
Drives the paper feed section and the paper transport
section.
section.
PFM
DC servo motor
17
Paper feed clutch
Transmits power of the paper feed motor to each transport
roller. (Controls ON/OFF.)
roller. (Controls ON/OFF.)
TRC
Electromagnetic clutch
18
Manual paper feed clutch
Controls ON/OFF of the manual paper feed roller. Presses
the paper pickup roller to paper.
the paper pickup roller to paper.
MPFC
Electromagnetic clutch
19
Paper feed drive clutch
Controls ON/OFF of the paper feed roller.
CPFC1
Electromagnetic clutch
20
No. 1 cassette lift-up motor
Drives the lift plate.
LUM1
Synchronous motor
21
Belt lift-up motor
Lifts the transfer belt unit.
BLUM
Stepping motor
22
23
1
2
3
4
5
6
7
8
24
14
12
11
9
13
15
17
19
20
21
18
16
10
26
25
27
28
AR-C170M EXTERNAL VIEW AND INTERNAL STRUCTURE 6 - 8
G. Sensors, switches and heaters
22
Calibration plate open/
close solenoid
close solenoid
Switches the image density sensor.
CALS
Electromagnetic solenoid
23
Transfer belt motor
Drives the transfer belt.
BTM
Stepping motor
24
Pickup solenoid
Drives the document pickup roller.
PSOL
Electromagnetic solenoid
25
Pressure release solenoid
Paper exit roller pressure, release, control
RSOL
Electromagnetic solenoid
26
PS clutch
Document resist clutch
CLH
Electromagnetic clutch
27
RSPF motor
RSPF drive motor
MOT
Stepping motor
28
Gate solenoid
Gate switch solenoid in duplex
GSOL
Electromagnetic solenoid
No.
Parts
Code, signal
name
Type
Name
Function
2
O/C open/close sensor
Detects open/close of the document cover. (A timing signal of
document size detection is produced.)
document size detection is produced.)
OCSW
Photo sensor (Photo
transmission)
transmission)
3
Offset home position sensor
Detects the offset home position.
HPOS
Photo sensor (Photo
transmission)
transmission)
4
Paper exit tray full detection
Detects full of the face down paper exit tray.
TFD2
Photo sensor (Photo
transmission)
transmission)
5
Mirror home position sensor
Detects the scanner home position.
MHPS
Photo sensor (Photo
transmission)
transmission)
7
Dehumidifier heater switch
Turns ON/OFF the dehumidifier heater installed in the scanner
(reading) section and the paper feed section.
(reading) section and the paper feed section.
DHSW
(Japan only)
(Japan only)
—
8
Toner empty sensor (Y)
Detects toner empty (Y).
TES_Y
Photo sensor (Photo
transmission)
transmission)
9
Toner empty sensor (M)
Detects toner empty (M).
TES_M
Photo sensor (Photo
transmission)
transmission)
10
Toner empty sensor (C)
Detects toner empty (C).
TES_C
Photo sensor (Photo
transmission)
transmission)
11
Toner empty sensor (K)
Detects toner empty (K).
TES_K
Photo sensor (Photo
transmission)
transmission)
12
No. 1 paper transport sensor
Detects paper in front of the resist roller.
PPD1
Photo sensor (Photo
transmission)
transmission)
No.
Parts
Code,
signal name
Type
Name
Function
42
Front / right side / top view
43
41
33
34
32
31
30
40
39
38
37
36
35
5
3
4
2
45
47
48
49
50
53
54
51
52
46
7
8
9
10
11
11
12
13
Lift-up unit
14
15
16
17
19
18
21
22
23
25
26
24
27
28
29
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