Epson TM-T88IV TM-T88IV Technical Reference Guide - Page 73

Replacement of the TM-T88III, Compatibility, Printing, Print Density, Print Speed

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Chapter 5 Replacement of Replacement of the TM-T88III The TM-T88IV is designed so that it can smoothly replace the TM-T88III. This chapter describes precautions for the replacement. Compatibility Printing The printing and character specifications are the same as those of the TM-T88III except some character font designs. Without special configurations, the TM-T88IV prints the same results as the TM-T88III prints. Font designs The following font designs of the TM-T88IV have changed from those of the TM-T88III. • Font A: 2, 3, 4, 5, 6, 7, 9 • Font B: 2, 6, 9 Print Density The print density of the TM-T88IV can be set with DIP switches (2-3/2-4) as can the TM-T88III. Set the density the same as for the TM-T88III to print in the same print density. The print density can be set also to a customized value. The initial setting of the customized value is "Depends on the DIP switch settings." If the customized value is changed, the value set with the customized value is enabled. (See "Setting the Memory Switches" on 5 page 43.) Print Speed The TM-T88IV has speeded its printing up to 200 mm/s at maximum. (TM-T88III: 150 mm/s) Depending on print conditions such as print duty, print head temperature, or data transmission speed, print speed is automatically adjusted which may cause white lines due to intermittent print (the motor sometimes stops). To avoid this, keep the print speed constant by setting it lower (See "Setting the Memory Switches" on page 43.), or set the transmission speed higher in case of the serial interface. (See "Transmission speed (DIP switch 1-7/1-8)" on page 36.) 73

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Chapter 5
Replacement of
73
5
Replacement of the TM-T88III
The TM-T88IV
i
s des
ign
ed so
t
ha
t
it
ca
n
smoo
t
hly replace
t
he TM-T88III. Th
i
s chap
t
er descr
i
bes
preca
uti
o
n
s for
t
he replaceme
nt
.
Compatibility
Printing
The pr
inting
a
n
d charac
t
er spec
i
f
i
ca
ti
o
n
s are
t
he same as
t
hose of
t
he TM-T88III excep
t
some
charac
t
er fo
nt
des
ign
s. W
it
ho
ut
spec
i
al co
n
f
igu
ra
ti
o
n
s,
t
he TM-T88IV pr
int
s
t
he same res
u
l
t
s as
t
he TM-T88III pr
int
s.
Font designs
The follow
ing
fo
nt
des
ign
s of
t
he TM-T88IV have cha
ng
ed from
t
hose of
t
he TM-T88III.
• Fo
nt
A: 2, 3, 4, 5, 6, 7, 9
• Fo
nt
B: 2, 6, 9
Print Density
The pr
int
de
n
s
it
y of
t
he TM-T88IV ca
n
be se
t
w
it
h DIP sw
it
ches (2-3/2-4) as ca
n
t
he TM-T88III.
Se
t
t
he de
n
s
it
y
t
he same as for
t
he TM-T88III
t
o pr
int
in
t
he same pr
int
de
n
s
it
y.
Print Speed
The TM-T88IV has speeded
it
s pr
inting
u
p
t
o 200 mm/s a
t
max
i
m
u
m. (TM-T88III: 150 mm/s)
The print density can be set also to a customized value. The initial setting of the customized
value is “Depends on the DIP switch settings.” If the customized value is changed, the
value set with the customized value is enabled. (See
"Setting the Memory Switches" on
page 43
.)
Depending on print conditions such as print duty, print head temperature, or data
transmission speed, print speed is automatically adjusted which may cause white lines due
to intermittent print (the motor sometimes stops). To avoid this, keep the print speed
constant by setting it lower (See
"Setting the Memory Switches" on page 43
.), or set the
transmission speed higher in case of the serial interface. (See
"Transmission speed (DIP
switch 1-7/1-8)" on page 36
.)