Canon TX-3100 Online Manual page 740

Device Type
The maximum supported roll paper width will be set to the initial value.
Roll Unit
If the lower roll unit is equipped, it is set to Yes.
Note
• If a roll unit set as a wrapping device is equipped, it is set to No.
Hard disk
If a hard disc is equipped, it will be set to Yes.
Acquire Status
Obtain device type, roll unit, and hard disk information from the printer.
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