Citizen CBM-262 Type II, Руководство по обслуживанию

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CBM-262 SERVICE MANUAL
1-1
1 Disassembly,Reassembly,Maintenance
1. Cautions Concerning Maintenance
Warning
(1) When disassembling, reassembling or adjusting the printer, disconnect the AC adapter from the
printer.
(2) When replacing a fuse, switch off the power switch first.
(3) A fuse is used for fire prevention. Be sure to use the same type when replacing the fuse.
Exercise caution regarding the following items when performing maintenance.
Caution
(1) Do not disassemble and reassemble, or make adjustments to the printer unnecessarily when
there is no abnormal or malfunctioning condition. In particular, do not loosen any of the
installation screws for any of the printer’s components unnecessarily.
(2) When finishing the maintenance, always check to make sure there is nothing abnormal before
switching on the power.
(3) By all means avoid printing without paper set in the printer.
(4) Make sure the printer has been set correctly.
(5) Do not place items on top of the cover or lean anything against it during maintenance or during
printer operetion.
(6) Be careful not to leave parts or screws, etc. used during maintenance lying around loose inside
the printer.
(7) When handling printed circuit boards, do not wear gloves which can easily generate a static
charge. The CPU, RAM, ROM and other IC’s can be destroyed by static electricity, so do not
touch the leads or window carelessly.
(8) Do not place the printed circuit boards directly on equipment or on the floor.
(9) During disassembly and reassembly, check wiring cords for damage, and do not exert undue
force on the wires during installation.