Citizen CL-S321 Series User manual

Service Manual
Thermal Transfer
Barcode & Label Printer
CL-S321 Series
Revision 1.00 2015.1.7

CL-S321 Series Service Manual
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REVISIONS
Rev No.
Date
Page
Comment
1.00
2015/1/7
Newly issued
CITIZEN is a registered trademark of CITIZEN HOLDINGS CO., LTD., Japan.
CITIZEN es una marca registrada de Citizen Holdings Co., Japón.

CL-S321 Series Service Manual
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CONTENTS
INTRODUCTION............................................................................................1
1. SERVICE PARTS LIST ...........................................................................1
1-1. Parts List.............................................................................................................................. 1
1-2. Parts Diagrams.................................................................................................................... 2
(1)“SA MAIN PCB 1 SP 321(PPS00173-00)”, (2)“SA MAIN PCB 2 SP 321(PPS00174-00)” ........... 3
(3)“SA MOTOR SP 321(PPF80007-00)” ............................................................................. 3
(4)“SA PLATEN SP 321(PPK90017-00)” ............................................................................ 4
(5)“SA LABEL SENSOR SP 321(PPS00175-00)”............................................................... 4
(6)“SA FEED SWICH SP 321(PPT00011-00)”.................................................................... 5
(7)“SA RIBBON SENSOR SP 321(PPS00176-00)”............................................................ 5
(8)“SA RIBBON HOLDER SP 321(PPM40002-00)”............................................................ 6
(9)“SA HEAD 1 SP 300(PPM80012-00)”, (10)“SA HEAD 1 SP 331(PPM80013-00)” ........ 6
2. DISASSEMBLY AND REASSEMBLY......................................................7
2-1. Tools Used........................................................................................................................... 7
2-2. Disassembly Procedure ...................................................................................................... 8
(1)“SA MAIN PCB 1 SP 321(PPS00173-00)”, (2)“SA MAIN PCB 2 SP 321(PPS00174-00)” ........... 8
(3)“SA MOTOR SP 321(PPF80007-00)” ............................................................................. 9
(4)“SA PLATEN SP 321(PPK90017-00)” ...........................................................................11
(5)“SA LABEL SENSOR SP 321(PPS00175-00)”............................................................. 14
(6)“SA FEED SWICH SP 321(PPT00011-00)”.................................................................. 15
(7)“SA RIBBON SENSOR SP 321(PPS00176-00)”.......................................................... 17
(8)“SA RIBBON HOLDER SP 321(PPM40002-00)”.......................................................... 19
(9)“SA HEAD 1 SP 300(PPM80012-00)”, (10)“SA HEAD 1 SP 331(PPM80013-00)” ...... 24
2-3. Assembly Procedure ......................................................................................................... 26
3. TROUBLESHOOTING..........................................................................27
3-1. Error Indication.................................................................................................................. 27

CL-S321 Series Service Manual
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INTRODUCTION
This manual describes the disassembly and reassembly procedures of CL-S321 Series.
1. SERVICE PARTS LIST
Remarks: When placing an order for service parts, refer to the Parts Price List published separately. If you need the
Parts Price List, consult the local distributor from whom you purchased this product.
1-1. Parts List
Part Number
Part Name
Description
(1)
PPS00173-00
SA MAIN PCB 1 SP 321
Main board assembly module,USB,RS232,CL-S321/S331
(2)
PPS00174-00
SA MAIN PCB 2 SP 321
Main board assembly module,USB,RS232,LAN,CL-S321/S331
(3)
PPF80007-00
SA MOTOR SP 321
Motor module, CL-S321/S331
(4)
PPK90017-00
SA PLATEN SP 321
Platen module, CL-S321/S331
(5)
PPS00175-00
SA LABEL SENSOR SP 321
Label sensor module,CL-S321/S331
(6)
PPT00011-00
SA FEED SWICH SP 321
Feed switch & LED assembly module,CL-S321/S331
(7)
PPS00176-00
SA RIBBON SENSOR SP 321
Ribbon sensor assembly module,CL-S321/S331
(8)
PPM40002-00
SA RIBBON HOLDER SP 321
Ribbon supply & gear module, CL-S321/S331
(9)
PPM80012-00
SA HEAD 1 SP 300
TPH 203dpi module, CL-S300/S321
(10)
PPM80013-00
SA HEAD 1 SP 331
TPH 300dpi module, CL-S331
(11)
PWT20013-00
UNIT POWER SUPPLY 300
Power supply unit, CL-S300
(12)
PWT20014-00
UNIT POWER SUPPLY 321
Power supply unit, CL-S321/S331
(13)
PYX80027-00
BOX
Individual packing box, CL-S321/S331
(14)
PYY00024-00
CARTON MASTER
Master Carton, CL-S321/S331
(15)
PYY30033-00
PAD U
Top polyfoam, CL-S321/S331
(16)
PYY30034-00
PAD L
Bottom polyfoam, CL-S321/S331

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1-2. Parts Diagrams
(1)(2)
(5)
(3)
(4)
(8)
(7)
(6)
(9)(10)

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(1)“SA MAIN PCB 1 SP 321(PPS00173-00)”, (2)“SA MAIN PCB 2 SP 321(PPS00174-00)”
To disassembly procedure
(3)“SA MOTOR SP 321(PPF80007-00)”
To disassembly procedure

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(4)“SA PLATEN SP 321(PPK90017-00)”
To disassembly procedure
(5)“SA LABEL SENSOR SP 321(PPS00175-00)”
To disassembly procedure

CL-S321 Series Service Manual
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(6)“SA FEED SWICH SP 321(PPT00011-00)”
To disassembly procedure
(7)“SA RIBBON SENSOR SP 321(PPS00176-00)”
To disassembly procedure

CL-S321 Series Service Manual
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(8)“SA RIBBON HOLDER SP 321(PPM40002-00)”
To disassembly procedure
(9)“SA HEAD 1 SP 300(PPM80012-00)”, (10)“SA HEAD 1 SP 331(PPM80013-00)”
To disassembly procedure

CL-S321 Series Service Manual
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2. DISASSEMBLY AND REASSEMBLY
Note the following items when performing maintenance of the printer.
Do not disassemble, reassemble, or adjust the printer unnecessarily when the printer operation is
satisfactory.
Do not loosen the screws that fasten the components unless it is absolutely necessary.
After finishing inspection, perform a check to ensure that there is no irregularity before turning on the
printer.
Use caution not to leave any part or screw used for maintenance inside of the printer.
When handling the print head and electronic components, care must be taken to avoid static electricity.
When disassembling or reassembling the printer, check the wires and cords for damage. Do not draw
any wire or cord by force.
Lubricate the components as necessary when reassembling them.
2-1. Tools Used
Phillips screwdriver
Flat head screwdriver
Gloves

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2-2. Disassembly Procedure
(1)“SA MAIN PCB 1 SP 321(PPS00173-00)”, (2)“SA MAIN PCB 2 SP 321(PPS00174-00)”
Unscrew and take out 3 screws on the bottom
cover.
Lift up the bottom cover gently from the cut-out portion
by using a flat-head screw driver.
The main board is held by two points with the
body frame. One with a hole and one hook.
Pull up the main board.
Unplug cables.
Unscrew and take off the ESD cable.
Hooks

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(3)“SA MOTOR SP 321(PPF80007-00)”
Unscrew and take out 3 screws on the bottom
cover.
Lift up the bottom cover gently from the cut-out portion
by using a flat-head screw driver.
The main board is held by two points with the
body frame. One with a hole and one hook.
Pull up the main board.
Unplug cables.
Unscrew and take off the ESD cable.
Hooks

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Lift up the mechanism*. A flat-head screw
driver may help to lever up.
The motor is held by two screws.
Unscrew them and take out the motor.
*The mechanism is held by two hooks on the other side.
Press to release when lifting up the mechanism.

CL-S321 Series Service Manual
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(4)“SA PLATEN SP 321(PPK90017-00)”
Unscrew and take out 3 screws on the bottom
cover.
Lift up the bottom cover gently from the cut-out portion
by using a flat-head screw driver.
The main board is held by two points with the body
frame. One with a hole and one hook.
Pull up the main board.
<Assembly Order>
Hooks

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Unplug cables.
Unscrew and take off the ESD cable.
Lift up the mechanism*. A flat-head screw driver
may help to lever up.
Take out the e-ring by using a flat-head screw
driver.
Take out the gear.
*The mechanism is held by two hooks on the other side.
Press to release when lifting up the mechanism.

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Take out another e-ring, a washer and a bracket.
On the other side, unscrew and take out the ESD cable.
Take out the e-ring and a washer.
Take out the bracket.

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(5)“SA LABEL SENSOR SP 321(PPS00175-00)”
Unscrew and take out 3 screws on the bottom
cover.
Lift up the bottom cover gently from the cut-out portion
by using a flat-head screw driver.
The sensor is held by two hooks.
Lift up the sensor.

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(6)“SA FEED SWICH SP 321(PPT00011-00)”
Open the top cover. The LED guide rod and the
button are held by three screws.
Take out the screws and lift up.
In order to reach the FEED switch module, open
the bottom cover.
Lift up the bottom cover gently from the cut-out portion
by using a flat-head screw driver.

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Lift up the mechanism*. A flat-head screw
driver may help to lever up.
The FEED switch module is held by two screws.
Take them out and pull up.
*The mechanism is held by two hooks on the other side.
Press to release when lifting up the mechanism.