KYOCERA FS-1010 User Manual Page 74
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FS-1010
The AC power for the heater is applied in one of the five variations of the zero cross switchings as
shown in Figure 4-3-6. Each variation is constituted with the unit of ten positive and negative
envelops in five cycles, as obtained by varying the duration during which TRC1 turns on. The
heater lamp is energized while TRC1 is kept on; the heater lamp is turned off while TRC1 is kept
off. For example, the duty cycle (the period of a cycle during which the heater lamp is turned on) is
maximum for variation No.1 as the heater lamp is energized for the whole envelops. The duty cycle
is 60 % for variation No.3 as the heater lamp is energized for the 6 positive and negative envelops
out of 10. The duty cycle is 0 since the heater lamp is kept turned off for the whole envelops.
CPU (U01) selectively switches among those variations for applying voltages to the heater lamp
according to the THERMA signal which appears at pin #33 as feedback.
A fraction of THERMA is applied to pin #2 of comparator U04-1. The comparator maintains
comparison of the potential at pin #2 and pin #3 which gives a reference for the possible anomaly
in the heater temperature (bred by resistors R52 and R56). Should the voltage at pin #2 exceed that
at pin #3, the level at pin #1 becomes low. Since pin #1 is wired to the output line for the HEAT
signal, the HEAT signal is enforced to be low regardless the behavior of CPU (U01), thus preventing
possible heat overrun. The LED indicator “Call service 6110” error is then displayed.
- Laser printer 1
- Revision history 2
- Safety precautions 3
- 1. Installation Precautions 5
- 3. Miscellaneous 7
- Product Information 9
- Chapter 1 Contents 10
- 1-1 Printer specifications 11
- 1-2 Names of parts 14
- 1-3 Safety information 15
- Figure 1-3-1 Caution labels 16
- 1-5 About the toner container 22
- Installation/Operation 24
- Chapter 2 Contents 25
- 2-1 Unpacking 26
- 2-2 Installing the printer 27
- 2-3 Using the operator panel 38
- Maintenance/Adjustments 40
- Chapter 3 Contents 41
- 3-1 Maintenance/Adjustments 42
- EcoPrint 45
- A94K8000.bcmp 48
- Memory card 50
- Slot cover 50
- Operation Overview 52
- Chapter 4 Contents 53
- Aluminum base cylinder 56
- Photo conductive layer 56
- Diversion mirror 59
- 4-2 Paper feeding system 66
- 4-3 Electrical control system 69
- (1) Main board 70
- (2) Engine board 71
- Eraser lamp 72
- Engine board 72
- Eraser lamp cotrol circuit 72
- (5) High voltage board 79
- Disassembly 81
- Chapter 5 Contents 82
- 5-1 General instructions 83
- 5-2 Disassembly 84
- 5. Remove three screws 6 110
- 8. Remove the eraser lamp 9 111
- T roubleshooting 113
- Chapter 6 Contents 114
- 6-1 Troubleshooting 115
- Remote Operation Panel 117
- Call service 122
- 2000:nnnnnn 122
- 4000:nnnnnn 123
- 4200:nnnnnn 125
- (4) 5300 - Eraser lamp error 127
- 6000:nnnnnn 128
- (5) 6000 - Fuser unit error 128
- 7980:nnnnnn 129
- Printer indicators 131
- F030:nnnnnn 131
- Repetitive defects gauge 141
- Diagrams 144
- Appendix A Contents 145
- Timing charts 146
- Wiring diagram 152
- Status Page 153
- Appendix B Contents 154
- Status page 155
- Controller firmware version* 156
- Released date of the firmware 156
- Service information 156
- Interface 160
- Appendix C Contents 161
- Parallel interface 162
- USB interface 165
- Serial interface (Optional) 166
- KYOCERA MITA 171
- AMERICA, INC 171
- CORPORATION 171
- KYOCERA MITA EUROPE B.V 171
- KYOCERA MITA AMERICA, INC 172
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