Citizen PPU-231 Manual de usuario

CITIZEN

Service Manual

Model: PPU-231

Line Thermal

Printer/Presenter Unit

Rev. 1.00 Newly issued on May 12, 1999

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PPU-231 Service Manual

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INTRODUCTION

This manual describes the disassembly, reassembly, and maintenance procedures of the line

thermal presenter/printer PPU-231. It is intended for field maintenance men.

FEATURES

Packed with features, this small line thermal printer/presenter has a wide range of uses: a termi-

nal device for various data communication, an instrumentation terminal, an outdoor information

terminal or a device that prints various tickets and coupons. Please read this manual thor-

oughly before you use the printer/presenter to ensure it is implemented correctly.

1. Small, lightweight, and installable in a narrow area

2. High speed and low noise, owing to line thermal print

3. Long-life printing head and high reliability, owing to the simple mechanism

4. Easy paper-loading, owing to the auto-loading function

5. Built-in input buffer.

6. Capable of printing a bar code (Special command)

7. You can choose where you attach the power connector, interface connector, etc.

8. Large diameter paper roll support

PPU-231 Service Manual

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1. HANDLING AND MAINTENANCE OF PRINTER ..........................................................................4

2. SPECIFICATIONS ...............................................................................................................................5

2.1 Basic Specifications ....................................................................................................................5

3. DISASSEMBLY AND REASSEMBLY ................................................................................................6

3.1 Disassembly Procedure for PPU Unit.......................................................................................6

3.2 Disassembly Procedure for PRU Unit.......................................................................................9

3.3 Disassembly Procedure for PMU Unit....................................................................................13

3.4 Reassembly Procedure..............................................................................................................15

4. TROUBLESHOOTING ......................................................................................................................16

4.1 Troubleshooting Procedure..………………………………………………………………..………16

4.2 Troubleshooting Guide.. ..…………………………………………………………………….……..16

5. SERVICE PARTS LIST ......................................................................................................................19

5.1 Parts List for Mechanism.........................................................................................................19

5.2 Disassembly Drawing...............................................................................................................21

5.3 Parts List for Control Board ...................................................................................................24

5.4 Parts Layout Drawing..............................................................................................................26

6. DRAWING...........................................................................................................................................29

6.1 Block Diagram..........................................................................................................................30

6.2 Circuit Diagram........................................................................................................................31

7. OUTER DIMENSION ........................................................................................................................32

h: For the printer mechanism LT380V and auto cutter ACS-230F, refer to the separate Service

Manuals.

PPU-231 Service Manual

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See the User’s Manual coming with the printer body.

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Item Description

Printing system Line thermal dot printing

Printing width 72 mm (576 dots/line)

Dot density 8 dots/mm (Width, Length)

Printing speed 62.5 mm/sec. (At maximum speed), (500-dot line/sec.)

Printing columns and

character size 48 columns (12´24 FontA) 1.25´3.00 mm

64 columns (9´24 Font B) 0.88´3.00 mm

Line interval Initial value: 4.23 mm (1/6 inch)

Can be set with a command (1/203 inch at minimum)

Character types Alphanumeric, Japanese, International characters

Bar code type UPC-A, JAN(EAN) 13-/8-column, ITF, CODE 39, CODE 128, CODABAR

Paper Thermal paper roll

Width:80 mm

Outer diameter: f203 mm (Max.), (When using PHU)

Inter diameter: f25.4 mm (Max.)

Thickness: 60~85 µm

Recommended paper TF-50KS-E, E2C (made by Nippon Seishi)

Presenter Length of normal issue

~305 mm (Can be adapted to issue 457 mm lengths)

2.5

~12 inches (Can be adapted to issue 18-inch lengths)

Interface Serial (RS-232C), Parallel (Conforms to CENTRONICS)

Input buffer 4 KB

Command ESC/POS

Sensors Paper near end sensor (When using PHU, position adjustable)

Paper end sensor (When using PMU)

Black mark Sensor (Option)

Supply voltage 24 V DC +/- 7%

Power consumption 100 W

Weight PPU: 1.6 kg (Control PCB included)

PHU: 0.9 kg (Paper roll excluded)

Outer dimensions PPU: 144.7(W)´160(D) ´172(H) mm

PHU: 132.2(W)´120(D) ´125.2(H) mm

*: Protruding parts are not included.

Operating temperature

and humidity 5~40°C, 35~85 % RH (No dew condensation)

Storage temperature

and humidity -20~60°C, 10~90% RH (No dew condensation)

Reliability Printing head life:

Pulse resistance : 50 million pulses or more (Print rate 12.5%)

Wear resistance: 30 km or more (With recommended thermal paper

at normal temperature and humidity)

Auto cutter life:

300,000 cuts (With recommended thermal paper at normal tempera-

ture and humidity)

PPU-231 Service Manual

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For maintenance operations, note the following:

Notes:

(1) Do not disassemble/reassemble or adjust the machine, if it functions properly. Particularly,

do not loosen screws on any component, unless necessary.

(2) After completing an inspection and before turning on the power, be sure to check that there is

no abnormality.

(3) Never try to print without paper installed in the printer. Check that the printing paper is

properly set.

(4) During maintenance, be careful not to leave parts or screws unattached or loose inside the

printer.

(5) When handling the thermal head and control board,do not use gloves or other aids which can

easily cause static electricity. Also, avoid a place where static electricity can occur.

(6) When disassembling or reassembling, check cables and boards for any damage. Do not run

cables into a narrow space or set cables in improper positions.

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(1) Disconnect the two connectors from the control board and detach the PRU unit after re-

moving the four screws.

PRU Unit

PPU-231 Service Manual

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(2) Release the lock of the FCC connector, disconnect the FCC from the control board, remove

the two springs, pull out the knob, unfasten the two screws, and detach the PMU unit.

(3) Disconnect the connectors of power connector assy, power switch assy, feed switch assy, and

I/F connector assy from the control board.

PMU Unit

Feed SwitchAssy

Power Switch Assy

Power Connector Assy

I/F ConnectorAssy

Knob

Spring

PPU-231 Service Manual

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(4) Disengage the four claws that are holding the control board and detach the control board.

(5) Remove the side frame L and R.

Control Board

DIP Switch

Side Frame R

Side Frame L

Center Frame

PPU-231 Service Manual

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(1) Remove the four screws from the PRU unit, that are fixing the cutter bracket. Then, re-

move the auto cutter unit.

(2) Push the U-shaped part of the door and remove the door. Then, pull out the roller shaft

and remove the roller.

Presenter Bracket

Roller

Roller Shaft Door

PPU-231 Service Manual

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(3) Remove the four screws that are fixing the upper case and detach the upper case.

(4) Remove the feed roller assy and PE sensor assy by pulling them horizontally.

Feed Roller Assy

Upper Case

PE Sensor

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