Dimensions; Receive Buffer Size; Effect On The Application When Condition Of Buffer Full Is Changed - Epson C31C514452 Technical Reference Manual

6.1.3 Dimensions

Some dimensions of the TM-U220 are smaller than those of the TM-U210 except Type D.
Therefore, the TM-U220 Type A and B printers can be installed in the same space as the
TM-U210 Type A and B.
Dimensions Type A
(W x D x H)
Type B
(Unit: mm)
Type D
See "External Dimensions and Mass" (page 1-15) for details.

6.1.4 Receive buffer size

This topic is for serial model.
The receive buffer size of the TM-U220 can be changed as shown in the following table.
Product Receive buffer capacity
TM-U210 40 bytes (DIP SW1-2 is On)
(ANK: DIP SW1-2 is Off)
1K bytes
(Multilingual: DIP SW1-2 is Off)
512 bytes
TM-U220 40 bytes (DIP SW1-2 is On)
4K bytes
(DIP SW1-2 is Off)
(default)
Note:
The receive buffer of TM-U210 may cause lost data at bufferfull state when there is no FIFO setting, or the
FIFO setting is larger than 16 bytes. However, the TM-U220 will have enough remaining receive buffer
space to prevent data loss at bufferfull state when DIP SW1-2 is Off regardless of the setting of MemSW
8-7.
The "Byte number from buffer full to release full state" is larger than TM-U210. It is for
improvement. However, you should pay attention to the following:

6.1.4.1 Effect on the application when condition of buffer full is changed

The time from buffer empty to buffer full becomes longer. However, there are no cases in which
the Host PC watches the time. Therefore, there should be no problem.
6-4 Notices for Replacement of the TM-U210/TM-U300
TM-U210
160 x 295 x 160
160 x 248 x 150
160 x 248 x 133
Condition of
buffer full
Buffer space is
16 bytes
Buffer space is
16 bytes
Buffer space is
128 bytes
Buffer space is
128 bytes
TM-U220
160 x 286 x 158
160 x 248 x 139
160 x 248 x 139
Condition of Byte number from buffer full to
release full release full state
state
Buffer space is 10 bytes
26 bytes
Buffer space is 10 bytes
26 bytes (Regardless of MemSW8-7)
Buffer space is 128 bytes
256 bytes (MemSW8-7:OFF) (default)
Buffer space is 10 bytes
138 bytes (MemSW8-7: ON)
Rev. H