Daily Maintenance; Touchscreen; Escutcheon - Mitsubishi Electric M80 Series Maintenance Manual

M800/M80/E80 Series Maintenance Manual
2 Daily Maintenance and Periodic Maintenance

2.1 Daily Maintenance

2.1.1 Touchscreen

CAUTION
Always keep the touchscreen surface clean. When it gets dirty, remove the dirt immediately. Do not perform any
operation on the dirty touchscreen.
(1) Cleaning the touchscreen
When metal powder or sand dust is on the touchscreen, remove it to prevent the scratches.
Wipe the screen gently with a soft and clean cloth.
(2) Precautions for use
The touchscreen may become poor sensitive or even may not react when it gets dirty.
Operate the touchscreen with fingers. The touchscreen does not react with nails.
The use of gloves, work gloves, etc. has effects such as the deterioration of the operation feeling depending on the
material and thickness of the gloves.
The polarizing plate (display surface) of the touchscreen surface can be easily scratched, so be careful during han-
dling.
Glass is used in the touchscreen. Be careful not to drop the touchscreen or allow it to hit hard objects, as the glass
may chip or break.
The polarizing plate may be stained or discolored if drops of water, etc., adhere to it for long periods, so be sure to wipe
off any moisture immediately.
Wipe off any dirt, dust, etc., on the polarizing plate using absorbent cotton or other soft cloth.
Electronic parts are used in the touchscreen, so be careful of static electricity when handling.
Never disassemble the Touchscreen. Doing so will damage the panel.
(3) Precautions for storage
Do not store the card in locations having a high temperature or humidity. (Store within the storage temperature range.)
When storing the touchscreen as an individual unit, be sure that other objects do not touch or hit the polarizing plate
(display surface).
When storing the touchscreen for long periods, be sure to store in a dark place away from exposure to direct sunlight
or fluorescent light.

2.1.2 Escutcheon

Cleaning the escutcheon
(1) Prepare the rear side of the escutcheon to clean.
(2) Wipe the escutcheon with a soft, clean, dry cloth. If cleaning is still required, put some neutral detergent on a cloth
and wipe. Do not use alcohol, thinner, etc.
43 IB-1501273-F