Rev. H
Application Development Information
5-7
TM-U220 Technical Reference Guide
2. User NV memory
There is free area in the NV memory that the user can use. You can use this free area for
notations, to write other character information, or for many other purposes. The data
remains after you turn off the power. Use ESC/POS commands to read and write this data.
The following are examples of purposes.
•
Date of the printer for maintenance
•
ID definition for developer or POS system
Note
When you use User NV memory area by using OPOS or APD, you have to use “Direct I/O method”
or “Control A font.” Please contact EPSON or your dealer for details.
Note the following when writing to and erasing NV memory.
❏
The following restrictions apply when performing NV memory operations (including data
storage and deletion).
•
The paper
FEED
button must not be used to feed paper.
•
The real-time command must not be executed.
•
The ASB status will not be sent, even when the ASB function is set to enabled.
❏
The printer sometimes enters the Busy state while data is written to NV memory. It is
important not to send data from the host computer while the printer is in the Busy state, as it
will be incapable of processing any received data.
❏
Frequent use of the functions for defining data to and deleting data from NV memory can
damage the memory. As a rule in using the various commands, avoid writing to NV
memory more than a 10 times per day.
Summary of Contents for C31C514452
Page 1: ...TM U220 Technical Reference guide EPSON English Rev H 404455408 ...
Page 8: ...vii Rev H ...
Page 14: ...xiii Rev H ...
Page 30: ...1 16 General Information Rev H 1 7 1 2 Overview Type B ...
Page 31: ...Rev H General Information 1 17 TM U220 Technical Reference Guide 1 7 1 3 Overview Type D ...
Page 32: ...1 18 General Information Rev H ...
Page 80: ...3 38 Setup Rev H ...
Page 100: ...5 12 Application Development Information Rev H ...
Page 128: ...B 10 How to Install the Printer on a Wall with the WH 10 Rev H B 2 2 TM U220 Type D 5 14 146 ...
Page 130: ...C 2 Character Code Table Rev H C 2 Page 1 Katakana ...
Page 132: ...C 4 Character Code Table Rev H C 4 Page 3 PC860 Portuguese ...
Page 134: ...C 6 Character Code Table Rev H C 6 Page 5 PC865 Nordic ...
Page 138: ...C 10 Character Code Table Rev H C 10 Page 16 WPC1252 ...
Page 140: ...C 12 Character Code Table Rev H C 12 Page 18 PC852 Latin2 ...
Page 141: ...Rev H Character Code Table C 13 TM U220 Technical Reference Guide C 13 Page 19 PC858 Euro ...
Page 149: ...Rev H Character Code Table C 21 TM U220 Technical Reference Guide C 21 Page 254 Blank page ...
Page 150: ...C 22 Character Code Table Rev H C 22 Page 255 Blank page ...
Page 152: ...C 24 Character Code Table Rev H ...
