Canon MG8100 series On-Screen Manual page 134

If the machine is used or transported vertically or slanted, the machine may become damaged or
ink may leak from the machine.
Be sure not to use or transport the machine vertically or slanted.
Tip!: Do not place any object on the Document Cover!
Do not place any object on the Document Cover. It will fall into the Rear Tray when the Document
Cover is opened and cause the machine to malfunction.
Also, place the machine where objects will not fall on it.
Tip!: Carefully choose the area to place the machine!
Note when you place the machine near other electrical appliances such
as fluorescent lamps
Place the machine at least 5.91 inches / 15 cm away from other electrical appliances such as
fluorescent lamps. If the machine is placed closer to those, it may not be able to work properly
due to fluorescent noises.
Note when you use the machine on wireless LAN
Since the microwave oven and the wireless LAN system use the same frequency bandwidth, the
microwave oven can be the potential source of interference when the microwave oven is on.
Placing this machine close to microwave oven may result in the poor status of radio.
How to maintain the optimal printing quality?
The key to printing with the optimal printing quality is to prevent the Print Head from drying or clogging.
Always follow the following steps for optimal printing quality.
Follow the procedure below to disconnect the power plug.
1. Press the ON button on the machine to turn it off.
2. Make sure that the POWER lamp is not lit.
3. Disconnect the power plug from the wall outlet.
If you press the ON button to turn off the power, the machine caps the Print Head (nozzles)
automatically to prevent from drying. If you disconnect the power plug from the wall outlet before
the
POWER lamp is turned off, the Print Head will not be capped properly and this will cause
drying or clogging.