Countermeasures against Unauthorized Access
This section describes countermeasures against an unauthorized access to the printer from outside. When
you use the printer via a network or you are an administrator, we recommend you read this section before
using the printer.
Four countermeasures below can be helpful against an unauthorized access.
Specify a Private IP Address
Restrict Communication Using Firewall or Wi-Fi Router
Specify a Password for the Printer
Apply higher security level for Wi-Fi connection
Note
• As the setting procedure described below is an example, it may be different from that of your printer.
For details, refer to your printer's manual.
Specify a Private IP Address
An IP address is a numeric label assigned to each device on the network. There are two types of IP
address. One is used for internet connection ("global IP address"), and the other is used for a local area
network such as an inhouse LAN ("private IP address").
If a global IP address is specified for the printer, many and unspecified users on internet can access to
the printer. As a result, you will face an increased risk of information leakage caused by an unauthorized
access from outside. On the other hand, if a private IP address is specified for the printer, users who can
access to the printer are confined to those on a local area network such as an inhouse LAN. Therefore,
we recommend you specify a private IP address for the printer.
The range of addresses used as a private IP address is shown below. Make sure whether a private IP
address is specified for your printer.
Range of private IP address
• 10.0.0.0 to 10.255.255.255
• 172.16.0.0 to 172.31.255.255
• 192.168.0.0 to 192.168.255.255
Procedure to check the IP address
Select
Setup
>
Device settings
>
LAN settings
on your printer to select a network connection method
and check the IP address. For the procedure to check and specify the IP address, refer to your printer's
manual.
Note
• Establishing an environment to protect an access from outside using a firewall can reduce a risk of an
unauthorized access even though a global IP address is specified for your printer.
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Summary of Contents for GP200
Page 1: ...GP 300 GP 200 GP 5300 GP 5200 Online Manual English ...
Page 17: ...B20A 876 B510 877 ...
Page 50: ...Optional accessories Stand Roll Holder Set 50 ...
Page 59: ...Start printing Important Do not move the release lever during printing 59 ...
Page 68: ...Note The screen may differ slightly depending on the model you are using 68 ...
Page 70: ...Pausing Printing Pausing Printing 70 ...
Page 86: ...86 ...
Page 117: ...5 Tap ON 5 117 ...
Page 127: ...127 ...
Page 128: ...Basket Using the Basket 128 ...
Page 192: ...Data on the hard disk are erased 192 ...
Page 222: ...3 Select OK 3 The resending setting is completed 222 ...
Page 282: ...Adjusting Feed Amount Adjusting Feed Amount Adjusting Vacuum Strength 282 ...
Page 298: ...Note For instructions on replacing the ink tanks see Replacing Ink Tanks 298 ...
Page 306: ...306 ...
Page 330: ...Cutter Blade Cutter Blade Replacing the Cutter Blade 330 ...
Page 338: ...Related Topic Cleaning the Print Heads 338 ...
Page 344: ...344 ...
Page 355: ...Specifications Specifications Print Area 355 ...
Page 411: ...Printing with ICC Profiles 411 ...
Page 430: ...Note Selecting Enlarged Reduced Printing changes the printable area of the document 430 ...
Page 487: ...Printing from Printer Printing Data Saved on USB Flash Drive 487 ...
Page 505: ...Printer Driver Windows Printer Driver macOS Printer Driver 505 ...
Page 519: ...In such cases take the appropriate action as described 519 ...
Page 567: ...3 Select Save in Job Box in Output Method 3 567 ...
Page 568: ...568 ...
Page 580: ...5 In the list select the target job 5 6 Select Edit 6 7 Select Delete 7 8 Select Yes 8 580 ...
Page 595: ...Media Type Selection does not Match Loaded Media Type 595 ...
Page 620: ...620 ...
Page 655: ...Cleaning the Printer Exterior 655 ...
Page 657: ...Move the printer to a different environment or let the paper dry before rolling it 657 ...
Page 728: ...1201 Cause The ink tank cover is open What to Do Close the ink tank cover 728 ...
Page 729: ...1210 Cause The ink tank cover is open What to Do Close the ink tank cover 729 ...
Page 755: ...1500 Cause The ink in the ink tank is running low What to Do Prepare a new ink tank 755 ...
Page 828: ...Contact your Canon dealer for assistance 828 ...