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LABEL PRINTER
KL-750(ZX-554)
R
MAY 1996
KL-750
(without price)
INDEX


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CONTENTS
1. SPECIFICATIONS -------------------------------------------------------------------------------- 1
2. CLEANING THE PRINTER HEAD AND ROLLER --------------------------------------- 2
3. RESET OPERATION ----------------------------------------------------------------------------- 2
4. PRECAUTIONS ------------------------------------------------------------------------------------ 3
5. MEASUREMENT ---------------------------------------------------------------------------------- 3
6. LSI PIN FUNCTION ------------------------------------------------------------------------------- 4
7. BLOCK DIAGRAM (LSI1) ---------------------------------------------------------------------- 5
8. DIAGNOSTIC PROGRAM ---------------------------------------------------------------------- 6
9. MESSAGES -------------------------------------------------------------------------------------- 10
10. DISASSEMBLY PROCEDURE -------------------------------------------------------------- 11
11. SCHEMATIC DIAGRAMS -------------------------------------------------------------------- 12
12. PARTS LIST
12-1.
PARTS LIST (COMPONENTS) -------------------------------------------------- 14
12-2.
PARTS LIST (CHASSIS ASS'Y) ------------------------------------------------ 18
13. DISASSEMBLY VIEW
13-1-1. EXPLODED VIEW (COMPONENTS) ------------------------------------------ 16
13-1-2. DISASSEMBLY VIEW (Z554-1 ASS'Y) --------------------------------------- 17
13-2-1. DISASSEMBLY VIEW (CHASSIS ASS'Y-1) --------------------------------- 19
13-2-2. DISASSEMBLY VIEW (CHASSIS ASS'Y-2) --------------------------------- 20


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-- 1 --
1. SPECIFICATIONS
Model: KL-750
Input
Keyboard Layout:
Typewriter (QWERTY)
Character Types
Alpha (English and other languages):
99
Numbers:
10
Symbols:
37
Display
Type:
Liquid crystal display
Columns:
4
Character matrix:
5
× 7-dot
Printing
Type:
Thermal transfer
Speed:
Approximately 6.67 mm/second
Width:
4 mm (6 mm tape) or 8 mm (other tape)
Character matrix:
24
× 24-dot
Character fonts:
Sans-serif
Character effects:
Shade, underline, box
Character sizes:
1
× 1, 1 × 2, 1 × 3, 2 × 1, 2 × 2, 2 × 3
Number of lines:
1 (6 mm tape); 1 or 2 (other tapes)
Memory
Text:
Up to approximately 126 characters (total storage for
AREA 1 and AREA 2)
General
Main power supply:
Eight AA-size batteries or optional AD-A95100 AC adap-
tor
Battery life:
Approximately 1 tape cartridge (continuous printing)
Power consumption:
9 W
Auto power off:
Approximately six minutes after last key operation.
Dimensions:
44.6 (H)
× 174 (W) × 212 (D) mm
(1 3/4" H
× 6 7/8" W × 8 3/8" D)
Weight:
452 g (1 lb)
Ambient temperature:
10
°C ~ 35 °C (50 °F ~ 95 °F)
Threshold of voltage detection
Low battery:
Vbat+ = 6.2 ~ 6.25 V
Forced power off:
Vbat+ = 4.50 V
Note: Vbat+ is the voltage of BT+ pad in the Z554-1 ass'y. Refer to 3 page in this manual.


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-- 2 --
Printer head
Roller
2. CLEANING THE PRINTER HEAD AND ROLLER
A dirty printer head and roller can result in poor printing quality. If you have problems with print quality,
use the following procedure to clean the printer head and roller.
To clean the printer head and roller
1. Make sure the Label Printer is turned off.
2. Press the tape cartridge compartment cover release and open the compartment cover.
3. Remove the tape cartridge.
4. Use a cotton swab dipped in alcohol to clean the printer head and
roller as shown in the illustration (Figure-1).
5. Replace the tape cartridge and close the compartment cover.
3. RESET OPERATION
1. Turn power off.
2. While holding down the PRINT and ESC keys, press ON to
turn power on.
3. Keeping PRINT and ESC held down, release the ON key only.
·
This prompt confirms whether or not you want to initialize the
Label Printer.
4. Press SET to initialize the Label Printer or ESC to abort the
reset operation.
·
The following table shows the initial settings.
INT?
Item
Reset
Display
Cleared
Memory
Cleared
SYMBOL
,
EFFECT
CANCEL
M-FEED
NO
MIRROR
OFF
MEMO
STR?
DENSITY
3
WIDTH
OFF
Table-1
Figure-1


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-- 3 --
4. PRECAUTIONS
To prevent damage of the thermal head caused by static electricity when assembling the chassis
ass'y into the unit, the following steps must be followed;
1. Turn the power switch off.
2. Discharge the capacitor C15 (2200
µF) on the PCB Z554-1.
3. Connect the FPC of chassis ass'y into a connector CN201 of the Z554-2
ass'y.
4. Assemble the chassis ass'y.
5. Turn the power switch on.
(Refer to the Disassembly view
(Z554-1 ass'y) of 17 page.))
Figure-2
5. MEASUREMENT
Measure each value according to the following table and figure, if necessary.
Measurement point
Voltage/Current
Condition
Vcc
Min.
4.875 V
Icc = 30 mA
Max.
5.125 V
Vp
Min.
10.78 V
Ip = 300 mA
Max.
11.22 V
Ibat+
Typ.
9 mA
Turning power switch on.
(Displaying)
Max.
19 mA
Ibat+
Typ.
0.6 A
When printing at diagnostic program PRINT
(Printing)
Max.
0.7 A
CHECK 2
Ibat+
Typ.
10
µA
Turning power switch off.
(Power off)
Max.
30
µA
Note: Ibat+ = Power source (Batteries)
Vbat+ = 11 V
± 2%
Table-2
Figure-3