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 imagePROGRAF GP-300
Page 1: ...GP 300 GP 200 GP 5300 GP 5200 Online Manual English ...
Page 17: ...B510 840 ...
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 346: ...346 ...
Page 357: ...Specifications Specifications Print Area 357 ...
Page 404: ...Adjusting Color Balance Adjusting Brightness Adjusting Contrast 404 ...
Page 460: ...Printing from Printer Printing Data Saved on USB Flash Drive 460 ...
Page 482: ...Printer Driver Windows Printer Driver macOS Printer Driver 482 ...
Page 499: ...Adjusting Color Balance Adjusting Brightness Adjusting Contrast 499 ...
Page 530: ...3 Select Save in Job Box in Output Method 3 530 ...
Page 531: ...531 ...
Page 543: ...5 In the list select the target job 5 6 Select Edit 6 7 Select Delete 7 8 Select Yes 8 543 ...
Page 558: ...Media Type Selection does not Match Loaded Media Type 558 ...
Page 583: ...583 ...
Page 618: ...Cleaning the Printer Exterior 618 ...
Page 620: ...Move the printer to a different environment or let the paper dry before rolling it 620 ...
Page 691: ...1201 Cause The ink tank cover is open What to Do Close the ink tank cover 691 ...
Page 692: ...1210 Cause The ink tank cover is open What to Do Close the ink tank cover 692 ...
Page 718: ...1500 Cause The ink in the ink tank is running low What to Do Prepare a new ink tank 718 ...
Page 791: ...Contact your Canon dealer for assistance 791 ...