Epson TM-U220 TM-U220 Technical Reference Guide - Page 104

Dimensions, Receive buffer size

Page 104 highlights

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 (W x D x H) (Unit: mm) Type A Type B Type D TM-U210 160 x 295 x 160 160 x 248 x 150 160 x 248 x 133 TM-U220 160 x 286 x 158 160 x 248 x 139 160 x 248 x 139 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 TM-U210 TM-U220 Receive buffer capacity Condition of buffer full Condition of release full state Byte number from buffer full to release full state 40 bytes (DIP SW1-2 is On) (ANK: DIP SW1-2 is Off) 1K bytes (Multilingual: DIP SW1-2 is Off) 512 bytes Buffer space is 16 bytes Buffer space is 26 bytes 10 bytes 40 bytes (DIP SW1-2 is On) Buffer space is Buffer space is 10 bytes 16 bytes 26 bytes (Regardless of MemSW8-7) 4K bytes (DIP SW1-2 is Off) (default) Buffer space is Buffer space is 128 bytes 128 bytes 256 bytes (MemSW8-7:OFF) (default) Buffer space is Buffer space is 10 bytes 128 bytes 138 bytes (MemSW8-7: ON) 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 Rev. H

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6-4
Notices for Replacement of the TM-U210/TM-U300
Rev. H
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.
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.
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.
TM-U210
TM-U220
Dimensions
(W x D x H)
(Unit: mm)
Type A
160 x 295 x 160
160 x 286 x 158
Type B
160 x 248 x 150
160 x 248 x 139
Type D
160 x 248 x 133
160 x 248 x 139
Product
Receive buffer capacity
Condition of
buffer full
Condition of
release full
state
Byte number from buffer full to
release full state
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
Buffer space is
16 bytes
Buffer space is
26 bytes
10 bytes
TM-U220
40 bytes (DIP SW1-2 is On)
Buffer space is
16 bytes
Buffer space is
26 bytes
10 bytes
(Regardless of MemSW8-7)
4K bytes
(DIP SW1-2 is Off)
(default)
Buffer space is
128 bytes
Buffer space is
256 bytes
128 bytes
(MemSW8-7:OFF) (default)
Buffer space is
128 bytes
Buffer space is
138 bytes
10 bytes
(MemSW8-7: ON)