LTP
LTP Series
LTP1245 PRINTER
The LTP1245 is a thermal line printer that offers
high-speed, high-resolution printing in a compact,
lightweight mechanism ideal for today’s 5V
portable applications. Providing low-power con-
sumption to support battery-powered operation,
the LTP1245 is a maintenance-free mechanism
and, with optional interface, allows for automatic
paper loading. Ideal for measuring instruments,
analyzers, POS, portable communications devices
and more, the LTP1245 maximizes printer func-
tionality in applications where minimizing power
consumption, size and weight is a priority.
High resolution printing (8 dots/mm)
High speed, low voltage printing (25mm @ 5V,
62.5mm @ 8.0V)
Low 4.2V to 8.5V power supply operation
Prints on label stock
Available with or without paper feed knob
Available with straight or curved paper path
(up to 95 µm)
Thick paper printing possible on straight path
Automatic paper loading (available with
IF1001-01B interface board)
Wide opening head for easy access
Wide temperature range
Model LTP1245
Printing Method Thermal line dot system
No. of dots/line 384
No. of characters/line 24
Width (mm) 48
Resolution 8 dots/mm
Paper feed pitch (mm) 0.125
Speed (mm/s) 25 @ 5V, 62.5 @ 8.0V
Speed (cl/s) 7.5 @ 5V, 12.5 @ 8.0V
Detection Head temperature By thermistor
Paper out detection By photo interrupter
Head up detection By photo interrupter
Dimensions (WxDxH) mm 72 X 39.5 X 16
Weight (g) 45
Power supply Operating voltage 4.2 V to 8.5 V
Current consumption 2.1 Max. @ 5 VDC, 3.3 Max. @ 8.0 VDC 64 dots
Service life Pulse activation min. 100 million pulses (12.5% print ratio)
Abrasion resistance 50km or more
Operating temperature (°C) -30 to +70 (wide temperature range)
Storage temperature (°C) -35 to +75
Paper Width (mm) 58 +0/-1
Path Straight or curve
Thickness (µm) 65 ± 5
Auto cutter ACU6205 Optional
LTP1245-384-E
LTP1245H-384
LTP1245F-C384 
LTP1245S-C384-E
LTP1245V-C384-E
LTP1245U-S384-E 
LTP1245M-C384
LTP1245R-C384-E
LTP1245P-S384
LTP1245K-C384
LTP1245E-384A
LTP1245H-384
LTP1245N-S384
LTP1245T-S384-E
Specifications subject to change without notice.
LTP1245 / 01.03
CUTTER, INTERFACE BOARD & CPU
ACU6205A/B AUTO CUTTER
The ACU6205 is a compact and lightweight
circular cut type automatic cutter devel-
oped for the LTP1245 thermal line printer
mechanism.
Full cut and patial cut are available
Easily mounts on printer mechanism,
opens for easy maintenance
IF1001-01B INTERFACE BOARD
FOR LTP1245 SERIES
The IF1001-01B is an interface board used
specifically for the LTP1245 Series. It is
equipped with 8-bit parallel and serial TTL
data input terminals. The IF1001-01B brings
its printing functions into full play using a
wide variety of characters and function com-
mands.
PT100P01/PT101P01 AND PT120P01 CPU
FOR LTP1245 SERIES
Prints with less current using dynamic divi-
sion control in accordance with the number
of dots to be activated
Supports both parallel and serial input
Ensures high-quality print by measuring the
temperature and voltage, and adjusting the
print density
Provides a wide variety of user-defined char-
acter functions including
double-width/double-height, inverse print,
underlining, and character spacing
control; character string
Supports bit image graphics and characters
Provides a ruler line function which enables
ruler lines and characters to be easily
superimposed
Stamp function
Auto paper loading function
ACU6205
Seiko Instruments GmbH
Siemensstraße 9
D-63263 Neu-Isenburg
Telephone: 49-6102-297-0
Facsimile: 49-6102-297222
Model IF1001-01B
Applicable mechanism All LTP1245 Series
CPU PT100P01/PT500GA1
Input control method 8-bit parallel (modified Centronics)
Serial (TTL level)
Character type 222-IBM compatible
126-Japanese kana
Dimensions (WxDxH) mm 70.0 x 100.0 x 12.0
Weight (g) 40
Operating voltage (Vcc) -5 VDC ± 0.5
Current consumption (lcc) Max. 20 mA @ 5 VDC (standby)
Max. 200 mA @ 5 VDC (printing)
Operating temperature (°C) -5 to 50
Storage temperature (°C) -20 to 60
Model PT100P01 / PT101P01
Applicable mechanism All LTP1245 Series
Package form 80-pin flat package
Dimensions (WxDxH) mm 22.8 x 16.8 x 3.05
Configuration C-MOS LSI
Input method 8-bit parallel (Centronics), Asynchronous serial
Operating voltage (Vcc) 5 VDC ± 0.5
Operating frequency (MHz) 16 ± 0.5%
Remarks Use these CPUs and a gate array (PT500GA1) as a pair
PT101P01 for use with auto cutter
PT120P01 for use w/o gate array
Model ACU6205A/B
Cut Method Circular cutter type
Cut width (mm) 58 mm
Cut condition full cut / partial cut
Drive voltage Motor 4.2V to 6.0V
(VDC) Detector 5V ± 10%
Starting current (A) 1.2A max.
Operating time (ms/cycle) 0.6 sec. (max.) at 6.0 V
Cut frequency (cuts/minute) 30 max.
Life (cuts) 300,000 (M.C.B.F.)
Dimensions (WxDxH) mm 81.9 x 54 x 12
Weight (g) 50
Operating temperature (°C) 0 to 50
Storage temperature (°C) -20 to 60
Paper thickness (µm) 75