Utax CD 1015 Service Manual Page 176
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2HA/2HB
2-1-12
2-1-6 Fuser section
The fuser section consists of the parts shown in figure. When paper reaches the fuser section after the transfer process,
it passes between the press roller and heat roller, which is heated by fuser heaters M or S (FH-M or FH-S). Pressure is
applied by the fuser unit pressure springs so that the toner on the paper is melted, fused and fixed onto the paper. The
heat roller is heated by fuser heaters M or S (FH-M or FH-S) inside it; its surface temperature is detected by the fuser ther-
mistor (FTH) and is regulated by the fuser heaters turning on and off.
If the fuser section becomes abnormally hot, fuser thermostat (FTS) operates shutting the power to the fuser heaters off.
When the fuser process is completed, the paper is separated from the heat roller by its separation claws and is conveyed
from the copier to exit and switchback section.
Figure 2-1-16 Fuser section
Figure 2-1-17 Fuser section block diagram
(1) Left fuser unit
(2) Right fuser unit
(3) Press roller
(4) Heat roller
(5) Fuser heater M (FH-M)
(6) Fuser heater S (FH-S)
(7) Heat roller separation claw
(8) Fuser thermostat (FTS)
FH-M
FH-M
FTH
FH-S
YC23-2
YC6-2
YC6-1
YC6-3
LIVE
COM
PSPWB
AC
YC2-7
YC2-8
YC21-8
YC21-7
Heat roller
FTS
FTH
EPWB
FH-S
- Service Manual 1
- Digital Copy 1
- Double-pole/neutral fusing 3
- Safety precautions 5
- 1.Installation Precautions 7
- 2.Precautions for Maintenance 8
- 3.Miscellaneous 9
- CONTENTS 11
- 1-5 Assembly and Disassembly 12
- 2-1 Mechanical construction 12
- 2-2 Electrical Parts Layout 13
- 2-3 Operation of the PWBs 13
- 2-4 Appendixes 13
- INSTALLATION GUIDE 13
- 1-1-1 Specifications 15
- °C/71.6°F, 60% RH) 15
- °C/356°F thermostat 15
- 1-1-2 Parts names 17
- 1-1-3 Machine cross section 19
- °C/50 to 90.5°F 21
- ±0.3%/60 Hz ±0.3% 21
- (1) Installation procedure 22
- Toner container release lever 25
- Toner container 25
- Front right cover 27
- Power source PWB 29
- Wire of the drawer heater 29
- 1-3-1 Maintenance mode 33
- Correct image Output 44
- Leading edge registration 44
- Center line of printing 45
- Trailing edge margin 46
- Original Copy 47
- ± 1.5 mm 48
- ± 1.35 mm 48
- Scanner center line 52
- Reference 55
- 1/2" x 14" 56
- 1/2" x 11" 56
- 1/2" x 8 1/2" 56
- 1 2 3 62
- 4 5 6 62
- 7 8 9 62
- 1/2" size 75
- –2.0–2.0 77
- (P.1-3-45) 78
- (P.1-3-47) 78
- (P.1-3-46) 79
- 1/2" sheets 84
- 1-3-2 Copier management 92
- 1-4 Troubleshoo ting 97
- 1-4-2 Self-diagnosis 111
- (15)Image is partly 116
- 1-4-4 Electric problems 122
- 1-4-5 Mechanical problems 125
- 1-5 Assemb ly and Disassembly 127
- 1-5-2 Paper feed section 129
- Separation pulley 130
- Lower paper feed unit 130
- Separation pulley unit 130
- Paper feed clutch 131
- Stop ring 131
- Registration guide 131
- Upper paper feed unit 131
- MP upper cover 134
- MP lower cover 134
- Connector 134
- Paper conveying unit 134
- MP paper feed pulley unit 136
- MP paper feed pulley 136
- MP paper feed 136
- MP separation pad 136
- 1-5-3 Optical section 138
- Scanner wire 141
- Scanner wire drum shaft 141
- Frame securing tool 143
- Mirror 1 frame 143
- Mirror 2 frame 143
- 1-5-4 Drum section 149
- Main charger unit 151
- Main charger 151
- 1-5-5 Developing section 152
- 1-5-6 Transfer section 153
- 1-5-7 Fuser section 154
- Fuser unit 155
- Connectors 155
- Heat roller guide 158
- Fuser left unit 158
- Heat roller separation claws 158
- Heat roller 159
- Heat roller bushing 159
- Fuser thermostat 160
- Fuser thermistor 160
- Jumper switch 163
- DIMM slot 163
- 2-1-1 Paper feed section 165
- 2-1-2 Optical section 167
- 2-1-3 Drum section 171
- 2-1-4 Developing section 172
- 2-1-6 Fuser section 176
- 2-1-8 Duplex section 178
- 2-3-1 Power source PWB 185
- 2-3-2 Main PWB 188
- 2-3-3 Engine PWB 192
- 2-3-4 Operation unit PWB 198
- 2-3-5 CCD PWB 201
- 1/2", two sheets 203
- Maintenance parts list 207
- General wiring diagram 212
- INSTALLATION GUIDE FOR 213
- THE 300-SHEET CASSETTE 213
- THE DOCUMENT PROCESSOR 220
- 15mm15mm 224
- THE DUPLEX UNIT 231
- THE Printing System (X) 239
- Français 240
- Italiano 240
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