Toshiba 8070 User manual

1-1, KANDA NISHIKI-CHO, CHIYODA-KU, TOKYO, 101-8442, JAPAN
SERVICE MANUAL
DIGITAL PLAIN PAPER COPIER
8070/6570
5570/4580

GENERAL PRECAUTIONS REGARDING THE INSTALLATION
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 withAC 115V 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 high-
voltage 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 impor-
tant 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.

Mar.2000 © TOSHIBA TEC 1 - 1 8070/6570/5570/4580 SPECIFICATIONS
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)
•Copy speed (CPM)
LCF Cassette Manual feeding
Size selected No size selected
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
A4, B5, A5-R 65 80 65 76 48 48 33 33
LT, ST-R 55 55 48 33
45 45 45 25
A4-R, B5-R — — 51 61 42 42 33 33
LT-R 45 42 33
35 35 25
B4, FOLIO — — 44 52 37 37 33 33
LG, COMP 39 37 33
30 30 25
A3, LD — — 38 43 33 33 33 33
34 33 33
25 25 25
* Manually placed originals, one-sided and continuous copy modes
Paper
supply
(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
A4-R, LT-R : 51 (45) sheets/minute
LG : 44 (39) sheets/minute
A3, LD : 38 (34) sheets/minute
Note: CPM in a parenthesis is the specification of the 5500/5570.
(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.
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
MJD, UKD MJD, UKD
Paper
size
Mar.2000 © TOSHIBA TEC 1 - 1A 8070/6570/5570/4580 SPECIFICATIONS

8070/6570/5570/4580 SPECIFICATIONS 1 - 2 Mar.2000 © TOSHIBA TEC
•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:500sheets each), manual bypass feeding (ca-
pacity: 100 sheets, 64 to 80 g/m2)
Manual feeding: 64 to 130 g/m2(80 to 130 g/m2paper 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
•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/m264 ~ 130 g/m2
Special — — — Tracing paper, label Our company
paper paper, OHP film recommended
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
•System copy speed (CPM)
* Ten A4 or LT originals are set in the ADF.This includes the first copy time.
8070/6570/5570/4580 SPECIFICATIONS 1 - 2A Mar. 2000 ©TOSHIBATEC

Mar.2000 © TOSHIBA TEC 1 - 3 8070/6570/5570/4580 SPECIFICATIONS
* The specifications and external appearance are subject to change without notice in the interest of
product improvement.
•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

8070/6570/5570/4580 SPECIFICATIONS 1 - 4 Mar.2000 © TOSHIBA TEC
1.2 Accessories
Remarks
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
DP4580,5570.6570,8070 DP5500,6500,8000
Finisher MJ-1006, MJ-1007 MJ-1015, MJ1016
Hole punch —MJ-6002N
MJ-6002E
MJ-6002F
MJ-6002S
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
Toner T-6570, T-6570E

Mar.2000 © TOSHIBA TEC 1 - 5 8070/6570/5570/4580 SPECIFICATIONS
1.5 System List
Working tray
KK-6570
Staple
cartridge Finisher
STAPLE-600 MJ-1016
MJ-1017
STAPLE-700
Key counter
Key counter socket
MU-10
MU-8
Supplies
Drum
Toner bag Toner
Developer
1) For DP4580/5570/6570/8070

8070/6570/5570/4580 SPECIFICATIONS 1 - 6 Mar.2000 © TOSHIBA TEC
Working tray
KK-6570
Staple
cartridge Finisher
STAPLE-600 MJ-1015
MJ-1016
STAPLE-700
Key counter
Key counter socket
MU-10
MU-8
Supplies
Drum
Toner bag Toner
Developer
Hole punch
MJ-6002N
MJ-6002E
MJ-6002F
MJ-6002S
2) For DP5500/6500/8000
8070/6570/5570/4580 SPECIFICATIONS 1 - 6A Mar. 2000 ©TOSHIBATEC

Mar. 1999 © TOSHIBATEC 2 - 1 6570/5570 OUTLINE
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
1
13 14 10 53211 29 31 30 34 23 24 19 17 15
16
18
67
66
68
71
70
69
72
73
80
82
75
83
84
76
85
87
77
106 107
89 91
90
92
93 94 96
102 100
99 97
101
103
104
121
105
59
58
57
56
55
51
50
48
49
117
118
111
112
122
115 113 116 114
109 41 40 39
35
37
38
22 21 27 25
28 26 20
74
46 43 47
64 65
63
108
110
119
54 53 52
32 33
36
60 61 62
6
78
912 4
4442 45
123
120

6570/5570 OUTLINE 2 - 2 Mar. 1999 © TOSHIBATEC
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
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
37 Toner recovery auger
38 Recovery blade
No. Name
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
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
69 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
75 Elevator tray
76 LCF (large capacity feeder)

Mar. 1999 © TOSHIBATEC 2 - 3 6570/5570 OUTLINE
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
102 Lower elevator
103 Lower cassette
No. Name
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
113 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
122 Laser unit fan
123 Transfer belt cleaning blade

6570/5570 OUTLINE 2 - 4 Mar. 1999 © TOSHIBATEC
[B] Front Drive System
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
133 Transport roller (G23)
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
126 127 125 136 128 130 132 129 133
131
135
137
138
134
139
140
141

Mar. 1999 © TOSHIBATEC 2 - 5 6570/5570 OUTLINE
[C] Rear Drive System
150
149 148 146 145 147
163
204
206
207
162
167
164
165
170
166
179
180
181
182
183
184
186
185
188
189
190
191
192
193
194
195
178
198
199
151
209
208
200
156 153 152 155 154 157 159 158 160
205
175
176
177
168 169
161
203 202 201
174 173 172 171
196
197
187

6570/5570 OUTLINE 2 - 6 Mar. 1999 © TOSHIBATEC
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
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)
No. Name
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
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)

Mar. 1999 © TOSHIBATEC 2 - 7 6570/5570 OUTLINE
[D] Sectional View of Automatic Document Feeder
4
6
5
321
7 9
8
11 10 12 13 14 15 16
17 18 16 19 18 20
21 22
23
24
2526
No. Name
1 Pick-up roller 2 Weight
3 Empty sensor lever 4 Empty sensor 5 Separation pad 6 Feed cover switch
7 Aligning sensor 8 Size sensor 9 Size sensor lever
No. Name
10 Timing sensor
11 Aligning roller
12 Feed roller 13 Belt drive roller 14 Belt drop roller 15 DF open switch
16 Belt holding roller 17 Transport belt 18 Belt holding roller
No. Name
19 APS switch
20 Belt follower roller 21 Reversal roller 22 Exit sensor 23 Exit cover switch
24 Flapper 25 Exit roller 26 Transport belt cleaning brush

6570/5570 OUTLINE 2 - 8 Mar. 1999 © TOSHIBATEC
2.1.2 Electrical parts layout
[A] Configuration of Units
Lower unit
Upper unit
ADU
Scanner unit
Laser unit
Rear side
System unit

Mar. 1999 © TOSHIBATEC 2 - 9 6570/5570 OUTLINE
[B] Scanner Unit
(B-1) PC board
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
Rear side
Scanner unit
1
2
3

6570/5570 OUTLINE 2 - 10 Mar. 1999 © TOSHIBATEC
(B-2) DC electrical parts (except motors, PC boards)
[A4 series]
No. Name Symbol
1 Automatic paper size detector (APS1-6) S1-6
2 Home switch (HOME-SW) S2
[LT series]
No. Name Symbol
1 Automatic paper size detector (APS1-4) S1-4
2 Home switch (HOME-SW) S2
Rear side
Scanner unit
1
2
Rear side
Scanner unit
1
2

Mar. 1999 © TOSHIBATEC 2 - 11 6570/5570 OUTLINE
(B-3) Motors
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
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
Scanner unit
2
1
43
Rear side
Scanner unit
1
6
5
4
2
7
3