TOSHIBA 8070, 6570, 5570, 4580 Service Manual

SERVICE MANUAL

DIGITAL PLAIN PAPER COPIER

8070/6570

5570/4580

GENERAL PRECAUTIONS REGARDING THE INST ALLATION AND SERVICE FOR THE COPIER 6570, 5570

The installation and service should be done by a qualified service technician.

1. Transportation/Installation

• When transporting/installing the copier, move it by the casters while lifting the stoppers. The copier is quite heavy and weighs approximately 250 kg (551 lb), therefore pay full attention when handling it.

• Be sure to use a dedicated outlet with AC 1 15V or 120V/20A (220V, 230V , 240V/10A) or more for its power source.

• The copier must be grounded for safety. Never ground it to a gas pipe or a water pipe.

• Select a suitable place for installation. Avoid excessive heat, high humidity, dust, vibration and direct sunlight.

• Also provide proper ventilation as the copier emits a slight amount of ozone.

• To insure adequate working space for the copying operation, keep a minimum clearance of

80 cm (32”) on the left, 80 cm (32”) on the right and 10 cm (4”) in the rear.

2. Service of Machines

• Basically, be sure to turn the main switch off and unplug the power cord during service.

• Be sure not to touch high-temperature sections such as the exposure lamp, the fuser unit, the

damp heater and their periphery.

• Be sure not to touch high-voltage sections such as the chargers, the transfer belt and the highvoltage transformer.

• Be sure not to touch rotating/operating sections such as gears, belts, pulleys, fan, etc.

• When servicing the machines with the main switch turned on, be sure not to touch live sections

and rotating/operating sections. Avoid exposure to laser radiation.

• Use suitable measuring instruments and tools.

• Avoid exposure to laser radiation during servicing.

− Avoid direct exposure to beam.

− Do not insert tools, parts, etc. that are reflective into the path of the laser beam.

− Remove all watches, rings, bracelets, etc. that are reflective.

3. Main Service Parts for Safety

• The breaker, door switch, fuse, thermostat, thermofuse, thermistor, etc. are particularly important for safety. Be sure to handle/install them properly.

4. Cautionary Labels

• During servicing, be sure to check the rating plate and the cautionary labels such as “Unplug the power cord during service”, “Hot area”, “Laser warning label” etc. to see if there is any dirt on their surface and whether they are properly stuck to the copier.

5. Disposition of Consumable Parts/Packing Materials

• Regarding the recovery and disposal of the copier, supplies, consumable parts and packing materials, it is recommended to follow the relevant local regulations or rules.

6. When parts are disassembled, reassembly is basically the reverse of disassembly unless otherwise noted in this manual or other related documents. Be careful not to reassemble small parts such as screws, washers, pins, E-rings, toothed washers in the wrong places.

7. Basically, the machine should not be operated with any parts removed or disassembled.

8. Precautions Against Static Electricity

• The PC board must be stored in an anti-electrostatic bag and handled carefully using a wrist-

band, because the ICs on it may become damaged due to static electricity.

Caution: Before using the wrist band, pull out the power cord plug of the copier and make

sure that there is no uninsulated charged objects in the vicinity.

Caution : Dispose of used RAM-IC’s (including lithium battery)

according to the manufacturer’s instructions.

Vorsicht : Entsorgung des gebrauchten RAM-IC’s (inklusive

der Lithium Batterie) nach Angaben des Herstellers.

1. SPECIFICATIONS • ACCESSORIES • OPTIONS • SUPPLIES

1.1 Specifications

• Copy process................. Indirect electrophotographic process (dry)

• Type ............................... Console type

• Original platen................ Fixed type (left side, center reference)

• Acceptable originals....... Sheets, books, and 3-dimensional objects

When the document feeder is used, sheet originals only (60 to 90 g/m2, or 16 lb. to 24 lb.) (without carbon backing, staples and tape) Maximum size: A3 (Ledger)

Item 6500/6570 (5500/5570) 4580 8000/8070 Copy speed 65 cpm (55cpm) 45 cpm 80cpm PM cycle 400K (340K) 280K 440K Region NAD, TWD, SAD, ASD, AUD, NAD, ASD, MJD NAD, TWD, SAD, ASD, AUD

• Copy speed (CPM)

Paper supply

Paper size

A4, B5, A5-R 65 80 65 76 48 48 33 33 LT, ST-R 55 55 48 33

A4-R, B5-R — — 51 61 42 42 33 33 LT-R 45 42 33

B4, FOLIO — — 44 52 37 37 33 33 LG, COMP 39 37 33

A3, LD — — 38 43 33 33 33 33

* Manually placed originals, one-sided and continuous copy modes

(1) In the models of 6500/6570/5500/5570 * In the case of the automatic document feeder, 65 (55) sheets/minute when an A4 (LT) size

single-sided original is fed in the continuous copy mode at original size by the LCF.

* Re-processing speed of automatic duplexing unit ....A4, A5-R, LT, ST-R : 65 (55) sheets/minute

Note: CPM in a parenthesis is the specification of the 5500/5570.

MJD, UKD MJD, UKD

LCF Cassette

Model 6570 8070 6570 8070 6570 8070 6570 8070

6500 8000 6500 8000 6500 8000 6500 8000 5570 5570 5570 5570 5500 5500 5500 5500

45 45 45 25

35 35 25

30 30 25 34 33 33

25 25 25

Size selected No size selected

Manual feeding

A4-R, LT-R : 51 (45) sheets/minute LG : 44 (39) sheets/minute A3, LD : 38 (34) sheets/minute

(2) In the models of 8000/8070 (4580) * In the case of the automatic documnent feeder, 65 (45) sheets/minute when an A4(LT) size

single-sided original is fed in the continuous copy mode at original size by the LCF.

* Re-processing speed of automatic duplexing unit ....A4, A5-R, LT, ST-R : 70 (45) sheets/minute

A4-R, LT-R : 57 (35) sheets/minute LG : 50 (30) sheets/minute A3, LD : 42 (25) sheets/minute

Note: CPM in a parenthesis is the specification of the 4580.

Mar. 2000 © TOSHIBA TEC 1 - 1A 8070/6570/5570/4580 SPECIFICATIONS

Mar. 2000 © TOSHIBA TEC 1 - 1 8070/6570/5570/4580 SPECIFICATIONS

• System copy speed (CPM)

Copy mode 6500/6570 5500/5570 4580 8000/8070

Single-sided originals 1 set 42 38 33 42

↓ 3 sets 55 45 41 61

Single-sided copies 5 sets 59 51 42 67 Single-sided originals 1 set 32 28 24 32

↓ 3 sets 43 39 33 44

Duplex copies 5 sets 48 43 36 49 Two-sided originals 1 set 23 22 17 23

↓ 3 sets 39 35 31 40

Duplex copies 5 sets 45 41 36 47 Two-sided originals 1 set 28 28 28 28

↓ 3 sets 45 42 37 49

Single-sided copies 5 sets 52 46 40 58

* Ten A4 or LT originals are set in the ADF. This includes the first copy time.

• Copy paper

Cassette Duplexing LCF Manual feeding Note

Size A3 ~ A5-R A4, LT A3 ~ A5-R Adjustable to a non-

LD ~ ST-R LD ~ ST-R standard size Thickness 64 ~ 80 g/m Special — — — Tracing paper, label Our company

paper paper, OHP film recommended

64 ~ 130 g/m

• First copy time................ 3.6 seconds max. (A4 or LT, LCF, 100% manually placed original)

• Warm-up time ................ Approx. 420 sec.

• Multiple copying ............. 1 to 999, numerical keypad entry

• Reproduction ratio ......... Fixed ratio: 100% or 101% (selected in adjustment mode)

Zoom ratios: 25 ~ 400% (in 1% steps)

• Paper supply .................. Automatic feeding: LCF (capacity: 4000 sheets), 3 cassettes (capac-

ity: 500 sheets each), manual bypass feeding (capacity: 100 sheets, 64 to 80 g/m2)

Manual feeding: 64 to 130 g/m2 (80 to 130 g/m2 paper is feed one

sheet at a time)

• Original capacity (automatic document feeder)

............................ A4, A4-R, A5-R, LT, LT-R, ST-R: 60 sheets

LG: 35 sheets A3, LD: 30 sheets

• Paper capacity (automatic duplexing unit)

............................ 60 sheets (Our company recommended paper 80 g/m2)

• Toner supply .................. Automatic density detection and replenishment

Toner hopper supply

• Exposure control............ Automatic control and manually selectable (11 steps)

• Weight............................ Copier: 250 kg

8070/6570/5570/4580 SPECIFICATIONS 1 - 2 Mar. 2000 © TOSHIBA TEC

8070/6570/5570/4580 SPECIFICATIONS 1 - 2A Mar. 2000 © TOSHIBA TEC

• Power source................. AC115V/20A, AC 220 • 240V/10A

• Power consumption ....... 2.0 kW or less

* The power of the automatic document feeder, automatic duplexing unit and LCF is supplied

from the copier body.

• Total counter .................. Mechanical total counter

• Machine size.................. Refer to the figure below

920mm

742mm

1111mm

* The specifications and external appearance are subject to change without notice in the interest of

product improvement.

Mar. 2000 © TOSHIBA TEC 1 - 3 8070/6570/5570/4580 SPECIFICATIONS

1.2 Accessories

Unpacking Instructions 1 pc. Operator’s Manual 1 pc. Except MJD Drum 1 pc. Drum cover 1 pc. CS card 1 pc. For MJD Sheet CE 1 pc. Original feed tray 1 pc. Set-up report 1 set For NAD, MJD

1.3 Options

Finisher MJ-1006, MJ-1007 MJ-1015, MJ1016

Remarks

DP4580,5570.6570,8070 DP5500,6500,8000

Hole punch

Staple cartridge STAPLE-600, STAPLE-700 Key counter MU-8, MU-10 Working tray KK-6570

1.4 Supplies

Drum OD-6570 Developer D-6570 Toner bag TB-6550, TB-6550E T oner T-6570, T -6570E

—

MJ-6002N MJ-6002E MJ-6002F MJ-6002S

8070/6570/5570/4580 SPECIFICATIONS 1 - 4 Mar. 2000 © TOSHIBA TEC

1.5 System List

1) For DP4580/5570/6570/8070

Key counter

MU-10

Working tray

KK-6570

Key counter socket

Staple

cartridge

STAPLE-600 STAPLE-700

MU-8

Finisher

MJ-1016 MJ-1017

Supplies

Drum

Toner bag Toner

Mar. 2000 © TOSHIBA TEC 1 - 5 8070/6570/5570/4580 SPECIFICATIONS

Developer

2) For DP5500/6500/8000

Hole punch

MJ-6002N MJ-6002E MJ-6002F MJ-6002S

Key counter

MU-10

Working tray

KK-6570

Key counter socket

Staple

cartridge

STAPLE-600 STAPLE-700

MU-8

Finisher

MJ-1015 MJ-1016

Supplies

Drum

Developer

Toner bag Toner

8070/6570/5570/4580 SPECIFICATIONS 1 - 6 Mar. 2000 © TOSHIBA TEC

8070/6570/5570/4580 SPECIFICATIONS 1 - 6A Mar. 2000 © TOSHIBA TEC

2. OUTLINE OF THE MACHINE

2.1 Sectional Views and Electrical Parts Location Diagram

2.1.1 Sectional View [A] Front views of copiers excluding drive systems

121

50 51

58 59

131410

117

118 111

112

115

116

114

110

122

109

108

414039

123

4442 45

113

119

120

18 67

68 71

105

104

103

101

100

102

107

106

84 76 85

Mar. 1999 © TOSHIBA TEC 2 - 1 6570/5570 OUTLINE

No. Name

No. Name 1 Carriage 1 2 Mirror 1 3 Reflector 4 Exposure lamp 5 Thermostat 6 Carriage 2 7 Mirror 2 8 Mirror 3 9 CCD drive PC board

10 Scanner control PC board

11 Lens 12 Original glass 13 Scanner optical cooling fan 14 SLG board cooling fan 15 Toner empty detection lever 16 Toner hopper 17 Toner stirrer lever 18 Toner empty switch

39 Transfer belt 40 Transfer belt drive roller 41 Transfer belt cleaning brush 42 Transfer belt/toner recovery auger 43 Transfer belt power supply roller 44 Lower damp heater 45 Lower damp heater cover 46 Transfer belt follower roller 47 Transfer belt separation auxiliary roller 48 Exit roller 49 ADU/eject selector gate 50 ADU/reversal transport roller 51 ADU/ reversal selector gate 52 TR1 sensor 53 Empty sensor 54 Holding gate 55 ADU inlet/reversal roller

56 Separation belt 19 Spiral shaft 20 Toner transport auger unit 21 Upper magnetic roller 22 Lower magnetic roller 23 Transport roller 24 Leveler 25 Mixer 1 26 Mixer 2 27 Supply/recovery paddle 28 Auto-toner sensor 29 Fur brush 30 Main blade 31 Discharge LED 32 Main charger 33 Main charger wire cleaner 34 Drum 35 Toner adhesion sensor 36 Separation claw

57 Feed sensor

58 Aligning sensor

59 ADU/aligning roller

60 Feed roller

61 Pick-up roller

62 Paper transport roller 1

63 Paper transport roller 2

64 Paper transport roller 3

65 Paper transport roller 4

66 Manual pickup roller

67 Manual feed roller

68 Manual feed separation roller

LCF paper empty switch (S26)/tray up switch (S39) 70 Manual feed tray 71 LCF feed roller 72 LCF pick-up roller 73 LCF separation roller 74 Aligning roller

37 Toner recovery auger 38 Recovery blade

6570/5570 OUTLINE 2 - 2 Mar. 1999 © TOSHIBA TEC

75 Elevator tray 76 LCF (large capacity feeder)

No. Name

No. Name 77 Tray bottom switch (S40) 80 PFP upper aligning roller 82 PFP upper feed roller 83 PFP middle aligning roller 84 PFP upper paper switch (S28) 85 PFP upper separation roller 87 PFP lower aligning roller 89 PFP middle paper start switch (S32) 90 PFP middle separation roller 91 PFP lower paper start switch (S36) 92 PFP middle feed roller 93 PFP lower separation roller 94 PFP lower Feed roller 96 PFP lower pick-up roller 97 Upper elevator 99 PFP middle pick-up roller

100 Middle elevator 101 PFP upper pick-up roller

104 Middle cassette 105 Upper cassette 106 Wire rewind roller 107 Tray motor (M30) 108 Lower heat roller 109 Thermostat

110 Cleaning roller 3

111 Lower separation claw

112 Upper separation claw

1 13 Heater lamp

114 Upper heat roller

115 Cleaning roller 1

116 Cleaning roller 2

117 Exit roller

118 Exit switch (S10)

119 Cleaning roller 4

120 Manual feed inlet fan

121 System fan 102 Lower elevator 103 Lower cassette

122 Laser unit fan

123 Transfer belt cleaning blade

Mar. 1999 © TOSHIBA TEC 2 - 3 6570/5570 OUTLINE

[B] Front Drive System

126 127 125 136 128 130 132 129 133

137

138

134

139

140

141

131

135

No. Name 125 Cleaning roller 2 126 Cleaning roller 1 127 Upper heat roller 128 Belt for the toner auger (M15) 129 Main cleaning motor (M11) 130 Toner recovery auger 131 Toner transport auger 132 Fur brush

No. Name 134 Gate solenoid 135 End guide motor (M8) 136 Side guide motor (M9) 137 ADU inlet/reversal roller 138 Forward rotation clutch 139 Reversal clutch 140 Holding gate solenoid 141 Transport roller clutch

133 Transport roller (G23)

6570/5570 OUTLINE 2 - 4 Mar. 1999 © TOSHIBA TEC

[C] Rear Drive System

208

151

209

199

198

178

197 196

195

194

193

192

191

190

189

150

156

200

153

152

155

201

154

203

202

157

161

159

174

158

173

172

160

169

149

205

175

168

148

146

171

176

177

145

147

204

206

207

163

162

167

164

165

170

166

179

180

181

182

183 184

186

185

188

187

Mar. 1999 © TOSHIBA TEC 2 - 5 6570/5570 OUTLINE

No. Name

145 Scanning motor (M1) 146 Drive belt 147 Drive pulley 148 Follower pulley 149 Drive wire 150 Toner motor (M14) 151 Toner transport auger 152 Developer motor (M16) 153 Paddle 154 Upper magnetic roller 155 Lower magnetic roller 156 Mixer 157 Drum motor (M12) 158 Drum pulley (Drum) 159 Drum drive belt 160 Belt transport unit drive motor (M25) 161

Belt transport unit contact/release cam motor (M26)

162 Exit roller

178 Toner transport motor (M15) 179 PFP upper feed roller 180 Upper feed roller clutch (CL6) 181 PFP upper separation roller 182 PFP middle feed roller 183 Middle feed roller clutch (CL10) 184 PFP middle separation roller 185 Lower feed roller clutch (CL11) 186 PFP lower feed roller 187 PFP lower separation roller 188 Pedestal motor (M31) 189 Lower aligning roller clutch (CL9) 190 PFP lower aligning roller 191 Middle aligning roller clutch (CL8) 192 PFP middle aligning roller 193 Upper aligning roller clutch (CL7) 194 PFP upper aligning roller 195 LCF separation roller

163 ADU/reversal transport roller 164 Coupling 165 Aligning clutch 166 Aligning roller 167 ADU motor 168 Feed clutch 169 Separation belt 170 Feed roller 171 Paper transport roller 1 172 Paper transport roller 2 173 Paper transport roller 3 174 Paper transport roller 4 175 Upper heat roller pulley 176 Fuser drive belt 177 Heat roller motor (M18)

196 LCF pick-up roller 197 Feed motor (M32) 198 Manual feed separation roller 199 Manual pick-up roller 200 Manual feed roller 201 LCF feed roller 202 Aligning rollers 203 Aligning motor (M17) 204 Slot exhaust fan (M23) 205 Exit fan (M19) 206 Heater fan (M20) 207 Reversal fan (M27) 208 Duct in fan (M22) 209 Developer fan (M23)

6570/5570 OUTLINE 2 - 6 Mar. 1999 © TOSHIBA TEC

2526

[D] Sectional View of Automatic Document Feeder

19 APS switch

No. Name

20 Belt follower roller

21 Reversal roller

22 Exit sensor

23 Exit cover switch

24 Flapper

25 Exit roller

26 Transport belt cleaning brush

10 Timing sensor

No. Name

1 Pick-up roller

No. Name

11 Aligning roller

12 Feed roller

13 Belt drive roller

14 Belt drop roller

2 Weight

3 Empty sensor lever

4 Empty sensor

5 Separation pad

15 DF open switch

16 Belt holding roller

17 Transport belt

18 Belt holding roller

6 Feed cover switch

7 Aligning sensor

8 Size sensor

9 Size sensor lever

2.1.2 Electrical parts layout [A] Configuration of Units

System unit

Scanner unit

pper unit

Lower unit

Laser unit

Rear side

[B] Scanner Unit

(B-1) PC board

Scanner unit

Rear side

No. Name Symbol

1 CCD drive PC board (PWA-F-CCD-300) CCD 2 Scanning optical system control PC board (PWA-F-SLG-300) SLG 3 Scanning motor drive PC board (PWA-F-SDV-300) SDV

(B-2) DC electrical parts (except motors, PC boards)

[A4 series]

Scanner unit

Rear side

No. Name Symbol

1 Automatic paper size detector (APS1-6) S1-6 2 Home switch (HOME-SW) S2

[LT series]

Scanner unit

Rear side

No. Name Symbol

1 Automatic paper size detector (APS1-4) S1-4 2 Home switch (HOME-SW) S2

(B-3) Motors

Scanner unit

Rear side

No. Name Symbol

1 Scanning motor (SCN-MOT) M1 2 Document motor (DCM-MOT) M2 3 Scanning optical system cooling fan motor (OPT-FAN-MOT) M3-1,-2 4 SLG PC board cooling fan motor (SLG-FAN-MOT) M4

(B-4) AC electrical parts

Scanner unit

No. Name Symbol

1 Damp heater (M) (D-HTR-M) DHM 2 Damp heater (L) (D-HTR-L) DHL 3 Fuse PC board (PWA-F-FUS-351) FUS 5 Thermostat (85°C) THMO 6 Exposure lamp (EXPO-LAMP) (EXP) EXP 7 Lamp regulator PC board (PS-LRG-300) LRG

Rear side

[C] Laser Unit

(C-1) PC boards

Laser unit

Rear side

No. Name Symbol

1 PLG PC board (PWA-F-PLG-300) PLG 2 Polygon mirror motor drive PC board (M/A-DRV-POL-300) POL 3 Sensor PC board (PWA-F-SNS-300) SNS 4 Laser PC board (K-PWA-F-LDR-300) LDR

(C-2) Electrical parts (except motors, PC boards)

Laser unit

Rear side

No. Name Symbol

1 Galvanomirror (ASM-GALVA) GLV

(C-3) Motors

Laser unit

Rear side

No. Name Symbol

1 Polygon mirror motor (POL-MOT) M5 2 Laser unit fan (LSU-FAN-MOT) M6

[D] System Unit

(D-1) PC boards

System unit

Rear side

No. Name Symbol

1 System PC board (PWA-F-SYS-300) SYS 2 Mother board (PWA-F-MTB-300) MTB 3 Hard disk (HDD) HDD 4 LAN printer board or SCSI board (option) LAN or SCSI 5 NIC board (option for LAN printer board) NIC

(D-2) Motor

System unit

Rear side

No. Name Symbol

1 System fan motor (FAN-SYS) M7

[E] ADU

(E-1) PC board

Rear side

ADU

No. Name Symbol

1 ADU PC board (PWA-F-ADU-300) ADU

(E-2) DC electrical parts (except motors, PC boards)

11 12

ADU

Rear side

No. Name Symbol

1 Transport switch (TR2-SW) S3 2 End switch (END-SW) S4 3 Transport switch 1 (TR1-SW) S5 4 Transport clutch (TR-CLT) CL1 5 Reverse clutch (REV-CLT) CL2 6 Guide solenoid (GID-SOL) SOL1 7 Stack clutch (STK-CLT) CL3 8 Feed switch (FED-SW) S6

9 Empty switch (EMP-SW) S7 10 Aligning switch (RGT-SW) S8 11 Aligning clutch (RGT-CLT) CL4 12 Feed clutch (FED-CLT) CL5 13 Side switch (SID-SW) S9

(E-3) Motors

ADU

Rear side

No. Name Symbol

1 End guide motor (END-MOT) M8

2 Side guide motor (SID-MOT) M9

[F] Upper Unit

(F-1) PC board

Upper unit

No. Name Symbol

1 Motor control PC board (PWA-F-MOT-300) MOT

Rear side

(F-2) DC electrical parts (except motors, PC boards)

3 4

Upper unit

Rear side

No. Name Symbol

1 Fuser exit switch (EXIT-SW) S10

2 Scraper solenoid (SOL3) SOL3

3 Toner supply sensor (TNR-HOP-SW) S11

4 Auto toner sensor (SNR-ATC-300) ATS

5 Toner empty sensor (TNR-EMP-SW) S12

6 Paper stop switch (P-STP-SW) S13

7 Developer switch (DEV-SW) S14

8 Toner full switch (T-FULL-SW) S15

9 Main cleaning switch (CLN-M-SW) S16 10 Heat roller thermistor (THMS-HTR-300) THMSH 11 Developer bias transformer (PS-HVT-DB-300) HVT-DB 12

High-voltage power supply for main charger and transfer belt (PS-HVT-TM-300)

HVT-TM 13 Reversal exit switch (TRNE-SW) S17 14 Reversal switch (TRN-SW) S18 15 Reversal door switch (EXC-SW) S19 16 Discharge LED lamp (ERS-300) ERS 17 Gate solenoid (GATE-SOL) SOL4 18 Transfer belt touch switch (IR-TCH-SW) S43 19 Transfer belt separation switch (TR-SEP-SW) S44 20 Toner adhesion sensor IQM 21 Drum thermister THMSD

(F-3) Motors

Upper unit

No. Name Symbol

1 Fur brush motor (FUR-MOT) M10 2 Main cleaning motor (CLN-MOT) M11 3 Drum motor (DRM-MOT) M12 4 Manual inlet fan motor (SFB-FAN-MOT) M13 5 Toner motor (TNR-MOT) M14 6 Toner transport motor (AUG2-MOT) M15 7 Developer motor (DEV-MOT) M16 8 Aligning motor (RGT-MOT) M17

9 Heat roller motor (HTR-MOT) M18 10 Exit fan motor (EXIT-FAN-MOT) M19 11 Heater fan motor (HTR-FAN-MOT) M20 12 Developer fan motor (DEV-FAN-MOT) M21 13 Duct in fan motor (DUCT-IN-FAN-MOT) M22 14 Duct out fan motor (DUCT-OUT-FAN-MOT) M23 15 ADU motor (ADU-MOT) M24 16 Transfer belt motor (TRB-MOT) M25 17 Transfer belt cam motor (TRB-CAM-MOT) M26 18 Reversal fan motor (REV-FAN-MOT) M27

Rear side

(F-4) AC electrical parts

Rear side

Upper unit

No. Name Symbol

1 Door switch (DOOR-SW) S41 2 Main switch (MAIN-SW) S42 3 Fuse PC board (PWA-F-FUS-351) FUS 4 Damp heater (lower) (D-HTR-L) DHL-1,-2 5 Thermostat THM-D 6 Heater lamp (HTR-LAMP) HTR-L 7 Fuser thermostat (THERMO-152-FUS) THM-F 8 EXIT door switch (EXIT-AC-SW) S45 9 Fuser switch (HTR-SW) S46

[G] Lower Unit

(G-1) PC boards

Lower unit

Rear side

No. Name Symbol

1 Logic PC board (PWA-F-LGC-300) LGC

2 LCF PC board (PWA-F-LCF-150) LCF

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