![background image](http://html1.mh-extra.com/html/okidata/ol1200ex/ol1200ex_service-manual_3678465037.webp)
%3.1 Precautions For Parts Replacement
3.1 Precautions for Parts Replacement
Always practice good Anti-Static procedures when handling equipment. (1) Before starting parts
replacement, remove the AC cable and interface cable.
(a) Remove the AC cable in the following procedure:
i) Turn off ("o") the power switch of the printer
ii) Disconnect the AC inlet plug of the AC cable from the AC receptacle.
iii) Disconnect the AC cable and interface cable from the printer.
(b) Reconnect the printer in the following procedure.
i) Connect the AC cable and interface cable to the printer.
ii) Connect the AC inlet plug to the AC receptacle.
iii) Turn on ("l") the power switch of the printer.
(2) Do not try disassembly as long as the printer is operating normally.
(3) Do not remove unnecessary parts: try to keep disassembly to a minimum.
(4) Use specified service tools.
(5) When disassembling, follow the determined sequence. Otherwise, parts may be damaged.
(6) Since screws, collars and other small parts are likely to be lost, they should temporarily be
attached to the orginal positions.
(7) When handling ICs such as microprocessors, ROM and RAM, and circuit boards, always
practice good anti-static procedures.
(8) Do not place printed circuit boards directly on the equipment or floor.
Summary of Contents for OL1200ex
Page 8: ......
Page 16: ......
Page 18: ......
Page 39: ...3 2 Parts Layout 1 4 3 2 Parts Layout 1 4...
Page 40: ...Parts Layout 2 4 Parts Layout 2 4...
Page 41: ...Parts Layout 3 4 Parts Layout 3 4...
Page 42: ...Parts Layout 4 4 Parts Layout 4 4...
Page 57: ......
Page 62: ......
Page 77: ......
Page 79: ......
Page 87: ...User maintenance mode menu system User maintenance mode menu system...
Page 89: ......
Page 90: ...System maintenance mode menu system System maintenance mode menu system...
Page 93: ...Engine maintenance mode menu system Engine maintenance mode menu system...
Page 94: ......
Page 120: ......
Page 125: ...Fig 6 2 Measurement by a Multimeter Fig 6 3 Connector and Pin Location...
Page 139: ......
Page 144: ...No Replace the control board or Power Sensor board...
Page 150: ......
Page 151: ......
Page 152: ...Chapter 7 7 Wiring Diagram 7 WIRING DIAGRAM 7 1 Interconnect Signal Diagram...
Page 153: ...7 2 PCB Layout 7 2 PCB Layout 1 Control board AOLM...
Page 154: ......
Page 155: ...7 3 Resistance Check 7 3 Resistance Check...
Page 159: ...21 AOLM PCB 4YA4046 163 4G11 1 2 5 10 55077311...
Page 173: ...1 2 External View and Component Names 1 2 External View and Component Names...
Page 177: ...3 2 Parts Layout 3 2 Parts Layout This section describes the layout of the main components...
Page 190: ...5 Connection Diagram 5 CONNECTION DIAGRAM 5 1 Interconnection Diagram...
Page 191: ...5 2 PCB Layout 5 2 PCB Layout AOLT PCB...
Page 195: ...1 2 External View and Component Names 1 2 External View and Component Names...
Page 199: ...3 2 Parts Layout 3 2 Parts Layout This section describes the layout of the main components...
Page 212: ......
Page 213: ...5 Connection Diagram 5 CONNECTION DIAGRAM 5 1 Interconnection Diagram AOLE PCB...