IV
- 37
1.10 Power Supply PCB, Main PCB, and NCU PCB
(1) Unhook the head-power harness from latch "B" (together with the PC I/F modular harness
since the head-power harness is routed under the PC I/F modular harness through the duct
when viewed from the bottom).
(2) Pull out the AC cord bushing from the main frame.
(3) Disconnect the power supply PCB from the main PCB.
(4) Slightly lift up the power supply PCB and disconnect the head-power harness.
(5) Slightly lift up the main PCB and NCU PCB together, then disconnect the NCU PCB from the
main PCB.
(6) Disconnect the following nine harnesses from the main PCB:
• Hook switch harness (Not provided on the FAX-910.)
• Speaker harness
• Panel-main harness
• PC I/F modular harness
• CIS harness
• Solenoid harness
• Motor harness
• Main-head harness
• Main-sensor harness
NOTE:
The FAX870MC/FAX-930/FAX-931/MFC970MC has a Ni-MH battery ASSY. Only
when you need to replace the main PCB, disconnect the battery harness. After installing a new
main PCB, you may need to make settings to be stored in the RAM. If you need to replace the
battery ASSY, do not disconnect the harness in this disassembly step. Doing so with the power
cord unplugged will lose the settings stored in the RAM. Refer to Section 1.1.
(7) You may take out the harnesses (except for the main-head harness that is routed under the
drive unit) from the main frame.
Содержание FAX 750
Страница 4: ...CHAPTER I GENERAL DESCRIPTION ...
Страница 11: ...CHAPTER II INSTALLATION ...
Страница 12: ...CHAPTER III THEORY OF OPERATION ...
Страница 14: ...III 1 1 OVERVIEW Not provided on the FAX 910 ...
Страница 24: ...III 11 Active Gears on the Inner Side of the Drive Unit ...
Страница 26: ...III 13 Active Gears on the Inner Side of the Drive Unit ...
Страница 30: ...III 17 Location of Sensors and Actuators 1 ...
Страница 31: ...III 18 Not provided on the FAX 910 Location of Sensors and Actuators 2 ...
Страница 34: ...III 21 FAX750 FAX770 FAX 910 FAX 920 FAX 921 MFC 925 FAX870MC FAX 930 FAX 931 MFC970MC ...
Страница 39: ...CHAPTER IV DISASSEMBLY REASSEMBLY LUBRICATION AND ADJUSTMENT ...
Страница 44: ...IV 4 n n Disassembly Order Flow ...
Страница 48: ...IV 8 4 Disconnect the panel main harness ...
Страница 52: ...IV 12 ...
Страница 70: ...IV 30 Remove the two screws and lift up the paper feed chute ...
Страница 72: ...IV 32 ...
Страница 78: ...IV 38 ...
Страница 86: ...IV 46 1 17 Harness Routing ...
Страница 88: ...IV 48 ...
Страница 89: ...IV 49 2 LF roller ASSY 3 Platen frame ASSY ...
Страница 90: ...IV 50 ...
Страница 91: ...IV 51 4 Separation roller and main frame ...
Страница 92: ...CHAPTER V MAINTENANCE MODE ...
Страница 99: ...V 6 Scanning Compensation Data List ...
Страница 144: ...V 51 FAX750 FAX770 FAX 910 FAX 920 FAX 921 MFC 925 FAX870MC FAX 930 FAX 931 MFC970MC Key Button Entry Order ...
Страница 150: ...CHAPTER VI ERROR INDICATION AND TROUBLESHOOTING ...
Страница 168: ...July 98 5X4401 Printed in Japan ...
Страница 177: ......
Страница 178: ......
Страница 182: ......
Страница 184: ......
Страница 197: ......
Страница 198: ......
Страница 202: ......
Страница 216: ......
Страница 218: ......