Confidential
EPSON
TITLE
SHEET
REVISION
NO.
SHEET
NEXT
A
TM-U220A
Specification
(For Argentina Fiscal)
App.11 App.10
The drive signal waveform generated when the drawer is driven according to the above conditions
is shown in Figure E.1.
t1
×
2 ms
t2
≥
(
t1
×
4)
×
2 ms
ON
OFF
Figure E.1 Drawer Drive Signal Waveform (Formulas E-1 and E-2)
The ON time depends on the specifications of the drawer used. Be sure to check the drawer
specifications and set a suitable time. To use a drawer that does not meet the conditions of
Formulas E-1 and E-2, see the following section.
3) Using a drawer that does not meet the conditions in 2)
Setting the values of
t1
and
t2
according to the conditions in 2) results in a maximum ON time of
126 ms (0
≤
t1
≤
63), since the setting ranges of
t1
and
t2
are 0 to 255. To use a drawer that
requires an ON time exceeding 126 ms, the following conditions must be met:
ON time
ON time + (OFF time+
α
)
≤
0.2 ........................................................... Formula E-3
α
: other sequence processing time
NOTE:
α
is the drawer-driving prohibited period from the OFF time until the next ON time.
An example program in which the drawer connected to drive signal 1 is driven with an ON time of
200 ms is shown below.
PRINT #1, CHR$(&H1B);”p” ;CHR$(0);CHR$(100);CHR$(250);
GOSUB *WAIT300MS
ON time 200 ms OFF time 500 ms
*WAIT300MS
300 [ms] wait routine
(*1)
RETURN
*1 Corresponds to
α
of Formula E-3. Set the value so that it satisfies Formula E-3
(or include an internal processing time that is equal to or longer than this wait routine).
