SATO CL4NX,CL6NX Service Manual

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Service Manual

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SATO Corporation and its subsidiaries in Japan, the U.S. and other countries make no representations or warranties of any kind regarding this material, including, but not limited to, implied warranties of merchantability and fitness for a particular purpose. SATO Corporation shall not be held responsible for errors contained herein or any omissions from this material or for any damages, whether direct, indirect, incidental or consequential, in connection with the furnishing, distribution, performance or use of this material.

Specifications and contents in this document are subject to change without notice.

Trademarks

SATO is a registered trademark of SATO Holdings Corporation and its subsidiaries in Japan, the U.S. and other countries.

QR Code is a registered trademark of DENSO WAVE INCORPORATED.

Wi-Fi

is a registered trademark of Wi-Fi Alliance.

Wi-Fi Direct™, Wi-Fi Protected Setup™, WPA™ and WPA2™ are trademarks of Wi-Fi Alliance.

Bluetooth is a trademark of Bluetooth SIG, Inc., U.S.A.

ENERGY STAR and ENERGY STAR mark are registered U.S. marks.

All other trademarks are the property of their respective owners.

Version: GBS-CL4NX_CL6NX-r04-26-01-15SM

CL4NX/CL6NX Service Manual

Table of Contents ................................................................................... 1

1 Introduction .......................................................................................... 5

1.1 About This Manual .............................................................................................. 5

1.2 Safety Precautions.............................................................................................. 5

1.3 Parts Identification of the Printer ...................................................................... 6

1.3.1 Internal View with Left Housing Cover Removed (CL4NX) ....................................... 6

1.3.2 Internal View with Left Housing Cover Removed (CL6NX) ....................................... 7

2 Operation and Configuration ................................................................ 9

2.1 About Service Menu............................................................................................ 9

2.1.1 Reset Passwords..................................................................................................... 10

2.2 Tools Menu Tree Structure............................................................................... 11

2.3 Details of the Settings Menu Screen ............................................................... 12

2.3.1 Tools Menu.............................................................................................................. 12

2.4 Initial Values in Tools Menu ............................................................................. 23

2.5 Downloading Firmware..................................................................................... 24

3 Troubleshooting.................................................................................. 25

3.1 Troubleshooting Flowchart.............................................................................. 25

3.1.1 Power Problem ........................................................................................................ 25

3.1.2 Feed Problem .......................................................................................................... 26

3.1.3 Print Problem........................................................................................................... 28

3.1.4 Screen Problem....................................................................................................... 32

3.1.5 Media Problem ........................................................................................................ 32

3.1.6 Cutter Problem ........................................................................................................ 33

3.1.7 Dispenser Problem .................................................................................................. 34

4 Checking and Performing Printer Adjustments ................................. 35

4.1 Checking the Direct Current Power Voltage................................................... 36

4.2 Counter Clear Mode .......................................................................................... 38

4.3 Checking and Adjusting the Media Sensor .................................................... 40

4.3.1 Auto-calibration........................................................................................................ 40

4.3.2 Adjusting the Gap Sensor Sensitivity ...................................................................... 42

4.3.3 Adjusting the Gap Sensor Slice Level ..................................................................... 44

4.3.4 Adjusting the I-mark Sensor Sensitivity ................................................................... 44

4.3.5 Adjusting the I-mark Sensor Slice Level.................................................................. 46

Table of Contents

CL4NX/CL6NX Service Manual

4.4 Test Print Check................................................................................................ 48

4.5 Adjusting the Print Darkness........................................................................... 50

4.6 Checking the Ribbon End Function ................................................................ 51

4.7 Checking the Head Open Error........................................................................ 52

4.8 Adjusting the LCD Brightness ......................................................................... 53

4.9 Adjusting the Head Pressure Balance ............................................................ 54

4.9.1 Adjusting the Head Pressure Balance with Adjustment Screw ............................... 54

4.9.2 Adjusting the Head Pressure Balance with Adjustment Dials ................................. 56

4.10 Adjusting the Head Alignment....................................................................... 58

4.11 Adjusting the Timing Belt Tension................................................................ 59

4.12 Adjusting the Ribbon Tension ....................................................................... 61

4.13 Adjusting the Position of the Media Sensor................................................. 63

4.14 Adjusting the Timing Belt Tension of the Optional Liner Rewinder........... 64

5 Replacement....................................................................................... 67

5.1 Removing the Housing Cover.......................................................................... 68

5.1.1 Remove the Left Housing Cover ............................................................................. 68

5.1.2 Remove the Front Covers ....................................................................................... 69

5.2 Replacing the Print Head.................................................................................. 70

5.2.1 Replacing the Print Head (without the Optional UHF RFID Antenna Installed)....... 70

5.2.2 Replacing the Print Head

(with the Optional UHF RFID Antenna Installed - CL4NX Only)....................................... 72

5.3 Replacing the Platen Roller.............................................................................. 74

5.3.1 Guideline to Replace the Linerless Platen Roller (CL4NX Only)............................. 76

5.4 Replacing the Media Sensor ............................................................................ 76

5.5 Replacing the Main (CONT) PCB ..................................................................... 78

5.6 Replacing the KB PCB...................................................................................... 80

5.7 Replacing the Power Supply Unit.................................................................... 81

5.8 Replacing the Interface Board ......................................................................... 84

5.9 Replacing the FPGA PCB (CL6NX Only)......................................................... 85

5.10 Replacing the Timing Belt .............................................................................. 86

5.11 Replacing the Head Open Sensor ................................................................. 87

5.12 Replacing the Ribbon Sensor ........................................................................ 88

5.13 Replacing the Torque Limiter for Ribbon Rewind Spindle.......................... 89

5.14 Replacing the Torque Limiter for Ribbon Supply Spindle .......................... 90

Table of Contents

CL4NX/CL6NX Service Manual

5.15 Replacing the Torque Limiter for Liner Rewinder (Optional)...................... 92

5.16 Replacing the Timing Belt for Liner Rewinder (Optional) ........................... 93

6 Installation of Options........................................................................ 97

6.1 Installation of the Optional RTC (Real Time Clock) Kit.................................. 98

6.2 Installation of the Optional Wireless LAN Kit............................................... 100

6.2.1 Installation of the Optional Wireless LAN onto the Interface Combo Board .......... 100

6.2.2 Installation of the Optional Wireless LAN Interface Board..................................... 104

6.3 Installation of the Optional Cutter ................................................................. 106

6.4 Installation of the Optional Dispenser .......................................................... 111

6.5 Installation of the Optional Linerless Kit (CL4NX Only) .............................. 129

6.6 Installation of the Optional RFID Kit (CL4NX Only)...................................... 138

6.6.1 Installation of the Optional UHF RFID Kit .............................................................. 138

6.6.2 Installation of the Optional HF RFID Kit................................................................. 149

Table of Contents

CL4NX/CL6NX Service Manual

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CL4NX/CL6NX Service Manual

1.1

About This Manual

This service manual gives all the information necessary for you to adjust and repair the CL4NX/CL6NX printer. This service manual is written only for SATO authorized service personnel. The information in this manual is confidential to general users. This service manual is used as an extension of the operator manual. For basic specification, installation, operation and configurations of the printer, refer to the operator manual of the

CL4NX/CL6NX printer.

1.2

Safety Precautions

For your safety and to protect valuable equipment, always read and follow all warnings, cautions and instructions carefully before you operate or repair the printer.

Pictographic Symbols

The warning and caution symbols in this manual alert you of the information that you should follow. The symbol explanations are as follows.

WARNING

• Always power off the printer and disconnect the AC power cord from the outlet before you start any maintenance procedures. Perform maintenance procedures with the printer power on could cause injury to people or damage to equipment. Power on the printer only when you are instructed to do so.

• Wear a properly grounded static wrist strap when you perform maintenance procedures.

• Wear proper gloves when you perform maintenance procedures.

• Do not touch the printing element with your bare hand when you replace the print head.

• Hold the circuit board on the sides. Do not touch the components or bend the circuit board when you remove or install the circuit board.

• Do not touch the cutter with your hands, nor place objects into the cutter. Doing so could cause an injury.

• The print head will become hot after printing. Be careful not to touch it when replacing media or cleaning immediately after printing, to avoid being burned.

CAUTION

RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.

Introduction

Warning

The Warning symbol indicates that you can cause death or serious injury if you do not follow the instruction or procedure.

Caution

The Caution symbol indicates that you can cause injury or property damage if you do not follow the instruction or procedure.

1 Introduction

CL4NX/CL6NX Service Manual

1.3

Parts Identification of the Printer

For the parts identification of the external view of the printer, refer to Section 1.1 Parts Identification of the Printer of

CL4NX/CL6NX operator manual.

Note

The pictures in this manual show the CL4NX printer, unless otherwise stated.

1.3.1

Internal View with Left Housing Cover Removed (CL4NX)

Optional EXT PCB board

The optional EXT PCB is added when installing the optional RTC (Real Time Clock) kit, dispenser unit or RFID kit.

Power supply unit

This is the power board, which is located behind the main (CONT) PCB. It contains the printer’s transformers, relays, etc., for transference of electrical current from the supply source to the printer’s control circuits.

Interface board

Main (CONT) PCB board

The main (CONT) PCB is the primary brain center for all printer activities.

Ribbon frame

To support the ribbon supply spindle and ribbon rewind spindle.

Operator panel (KB) PCB board

This PCB provides the user interaction functionality via the operational buttons and as well as the LCD.

Gearbox

The stepper motor, timing belt and gears in the gearbox provide the main rotation motion for precise print positioning.

1 Introduction

CL4NX/CL6NX Service Manual

1.3.2

Internal View with Left Housing Cover Removed (CL6NX)

Optional EXT PCB board

The optional EXT PCB is added when installing the optional RTC (Real Time Clock) kit, dispenser unit or RFID kit.

Power supply unit

Interface board

Main (CONT) PCB board

The main (CONT) PCB is the primary brain center for all printer activities.

Ribbon frame

To support the ribbon supply spindle and ribbon rewind spindle.

Operator panel (KB) PCB board

This PCB provides the user interaction functionality via the operational buttons and as well as the LCD.

Gearbox

The stepper motor, timing belt and gears in the gearbox provide the main rotation motion for precise print positioning.

(

FPGA PCB board

The FPGA (Field Programmable Gate Array) board is used as a TPH (Thermal Print Head) controller. It controls the general of printing such as print strobe and etc. The main purpose is for history control of printing.

1 Introduction

CL4NX/CL6NX Service Manual

This page is intentionally left blank.

CL4NX/CL6NX Service Manual

This is supplementary information to the Chapter 4 Operation and Configuration of the CL4NX/ CL6NX operator manual. For other detailed information on operation and configuration, refer to the CL4NX/CL6NX operator manual. In this chapter, we only explain the operation and configuration in the

Service menu.

2.1

About Service Menu

In settings mode, the following menus show:

You can find the Service menu in the Tools menu. However, users cannot access the Service menu without password. This menu is only for SATO authorized service personnel use.

Operation and Configuration

Menu Description

Printing Access the settings related to printing.

Interface Access the settings related to the interfaces.

Applications Access the settings related to the printer command.

System Access the settings related to the display language, buzzer volume etc.

Tools Access the test print, initialization and other settings.

Information Access the printer information and help videos.

Tools InformationSystemApplicationsInterfacePrinting

2 Operation and Configuration

CL4NX/CL6NX Service Manual

When you select Service in the Tools menu, the printer shows the Password screen. You need to enter the correct password in order to access the menu. The default password to access the Service menu is

6677.

After a successful login, LOG OUT shows on the bottom left of the Settings menu screen. Press the left soft button if you want to log out immediately. Password is required to enter the settings mode again.

Note

With password enabled, if no button is pressed for about ten minutes after login, the login session will end automatically. Password is required to enter the settings mode again.

2.1.1

Reset Passwords

If you have forgotten the customized password, you can reset it back to the default password.

1 Power off the printer. 2 Press and release the power button while pressing and holding the back button,

and buttons simultaneously until the buzzer beeps once.

Note

This key sequence allows users to access the settings menu with the default passwords as a temporary solution. After accessing the settings menu with the default password, you must customize the password again in the System > Passwords > Change Password menu. For more information about changing the password, refer to the chapter 4 of the CL4NX/CL6NX operator manual.

2 Operation and Configuration

CL4NX/CL6NX Service Manual

2.2

Tools Menu Tree Structure

The table below outlines only the tree structure for the Service menu in the Tools menu. Refer to the tree structure to understand where information is located in the Tools menu. Click on the items in blue to link directly to the details of the selected items.

Tools Submenus

Test Print

HEX-Dump

Reset

Profiles

Service RFID RFID Mode

Module

Region

Inventory Check

Inventory Timeout

Verify

PREND Type 3/4

Hide Help Videos

Wi-Fi Region

Reset Select Data

Data & Settings

Settings

Counters

Clone

Maintenance Printer Serial

Offset

Pitch

Certificates

Startup Guide

2 Operation and Configuration

CL4NX/CL6NX Service Manual

2.3

Details of the Settings Menu Screen

2.3.1

Tools Menu

The following settings are available in the Tools menu:

Tools

1 Test Print Perform a test print.

2 HEX-Dump Save the hex dump print data or dump data

from the receive buffer to the USB memory.

3 Reset Initialize the configuration or counter of the

printer.

Profiles

Utilize the printer configurations as profiles.

5 Service These are the setting items for service.

Strictly for SATO authorized service personnel use.

6 Factory These are the setting items for factory.

Strictly for SATO factory personnel use.

7 Certificates Set the wireless LAN authentication.

* Available only if you have installed the USB memory.

8 Startup Guide Enable or disable the startup guide.

2 Operation and Configuration

CL4NX/CL6NX Service Manual

Service

Tool s > Se rvi ce

These are the setting items for SATO authorized service personnel used only. The setting items are as follows:

1 RFID Set the functions for RFID.

*Shows only if you have installed the optional RFID kit.

2 Hide Help Videos Set the guidance video that you do not wish to

show on the Information > Help screen.

3 Wi-Fi Region Set the region of the wireless LAN.

*Shows only if you have installed the optional wireless LAN.

4 Reset Initialize the settings and counter information of

this printer.

5 Clone Save the setting information of the printer to the

USB memory. * Available only if you have connected the USB memory.

6 Maintenance Select Printer Serial for entering the serial

number of the printer manually.

7 Offset Correct the offset position.

8 Pitch Offset the print position in the vertical direction.

2 Operation and Configuration

CL4NX/CL6NX Service Manual

RFID

Tools > Service > RFID

Set the functions for RFID. The setting items are as follows:

1 RFID Mode Enable or disable the RFID mode.

2 Module Shows the type of RFID module installed on the

printer.

3 Region Set the region where you use the printer.

*Shows only if you have installed the UHF RFID module.

4 Inventory Check Enable or disable the inventory check function.

*Shows only if you have installed the UHF RFID module.

5 Inventory Timeout Set the timeout period of the inventory check.

*Shows only if you have installed the UHF RFID module.

6 Verify Enable or disable the verification of data written

on tag.

7 PREND Type 3/4 Set the external output signal of the PREND.

RFID Mode

Tools > Service > RFID > RFID Mode

Enable or disable the RFID mode. When RFID Mode is set to Enabled, the RFID menu shows in the Interface mode menu. The options are as follows:

• Enabled: Enable the RFID mode.

• Disabled: Disable the RFID mode.

Module

Tools > Service > RFID > Module

Shows the type of RFID module installed on the printer.

2 Operation and Configuration

CL4NX/CL6NX Service Manual

Region

Tools > Service > RFID > Region

Set the region where you use the printer. Shows only if you have installed the UHF RFID module. Select the region (frequency band) where you use the printer from a list.

Inventory Check

Tools > Service > RFID > Inventory Check

Enable or disable the inventory check function. Shows only if you have installed the UHF RFID module. The options are as follows:

• Enabled: Perform the inventory check of the RFID tags. The printer

checks the taken tag number before writing to/read from the tag. An error occurs when the number is other than one.

• Disabled: Do not perform the inventory check of the RFID tags.

Inventory Timeout

Tools > Service > RFID > Inventory Timeout

Set the timeout period of the inventory check. Shows only if you have installed the UHF RFID module. The options are as follows:

•25 ms

•50 ms

•75 ms

•100 ms

•150 ms

•200 ms

•300 ms

•500 ms

2 Operation and Configuration

CL4NX/CL6NX Service Manual

Verify

Tools > Service > RFID > Verify

Enable or disable the verification of data written on tag. The options are as follows:

• Enabled: Perform the verification by reading the data of the written tag.

If not match, the printer prints VERIFY TAG ERR on the label.

• Disabled: Do not perform the verification of the written tag.

PREND Type 3/4

Tools > Service > RFID > PREND Type 3/4

Set the output content of the external signal PREND (Print Done). Reflect the timing of write (stop media feed) of RFID tag to the TYPE3 and TYPE4 waveforms of PREND (Print Done) signal. The options are as follows:

• Normal: Use the usual PREND signal.

• Motion: Reflect the timing of write (stop media feed) of tag to the

PREND signal.

For the waveforms during the settings of Normal and Motion, refer to the timing chart as follow.

2 Operation and Configuration

CL4NX/CL6NX Service Manual

The timing chart when writing to tag

Hide Help Videos

Tools > Service > Hide Help Videos

Set the guidance video that you do not wish to show on the Information > Help screen. The items with a check mark on the right are the selected videos that will not show on the Help screen.

Item

Output Waveform

PV

Print end

(PREND)

Print Done

Print motion

Motion Setting Normal Setting

TYPE 1

TYPE 2

TYPE 3

TYPE 4

Print start Write

Feed media

Stop feed Feed media

PV

Print end

(PREND)

Print Done

Print motion

TYPE 1

TYPE 2

TYPE 3

TYPE 4

Print start Write

Feed media

Stop feed Feed media

2 Operation and Configuration

CL4NX/CL6NX Service Manual

Wi-Fi Region

Tools > Service > Wi-Fi Region

Set the region of the wireless LAN. Shows only if you have installed the optional wireless LAN. Select the region (frequency band) where you use the printer from a list.

Reset

Tools > Service > Reset

Initialize the configuration or counter of the printer. The setting items are as follows:

1 Select Select the items to be initialized.

2 Counters Select the counter information to be initialized.

Select

Tools > Service > Reset > Select

Select the items to be initialized. The setting items are as follows:

1 Data Initialize the data saved in the printer.

2 Data & Settings Initialize the data and setting values of the

printer.

3 Settings Initialize the setting values of the printer.

2 Operation and Configuration

CL4NX/CL6NX Service Manual

Data

Tools > Service > Reset > Select > Data

Initialize the data saved in the printer. The data to be initialized are the fonts and graphics registered in the printer. When you select Data, the confirmation screen shows. Press the left soft button to cancel or right soft button to perform the initialization. The printer will reboot after reset.

CAUTION

It is generally not necessary to perform the initialization. Doing so could change the print conditions.

Data & Settings

Tools > Service > Reset > Select > Data & Settings

Initialize the data and setting values of the printer. Select the setting items to be initialized. The options are as follows:

• User Reset: Initialize the data and setting values.

• User Reset (-Interface): Initialize the data and setting values that are

not included in the Interface menu.

• Factory Reset: Initialize to the status after factory shipment.

• Factory Reset (-Interface): Initialize the items that are not included in

the Interface menu to the status after factory shipment.

• Interface: Initialize the data and setting values in the Interface menu.

•Printing: Initialize the data and setting values in the Printing menu.

Select the item to be initialized using the / buttons, then press the right soft button to perform the initialization. The confirmation screen shows. Press the left soft button to cancel or right soft button to perform the initialization. The printer will reboot after reset.

Refer to Section 7.1 List of Initial Value of the CL4NX/CL6NX operator manual and Section 2.4 Initial Values in Tools Menu of this manual for the initial value of each setting item.

Note

The data to be initialized are the fonts and graphics registered in the printer.

2 Operation and Configuration

CL4NX/CL6NX Service Manual

Settings

Tools > Service > Reset > Select > Settings

Select the setting items to be initialized. The options are as follows:

• User Reset: Initialize the setting values.

• User Reset (-Interface): Initialize the setting values that are not

included in the Interface menu.

• Factory Reset: Initialize to the status after factory shipment.

• Factory Reset (-Interface): Initialize the items that are not included in

the Interface menu to the status after factory shipment.

• Interface: Initialize the setting values in the Interface menu.

•Printing: Initialize the setting values in the Printing menu.

Refer to Section 7.1 List of Initial Value of the CL4NX/CL6NX operator manual and Section 2.4 Initial Values in Tools Menu of this manual for the initial value of each setting item.

Counters

Tools > Service > Reset > Counters

Select the counter information to be initialized. The options are as follows:

•Head: Initialize the head counter (media feed distance).

•Cutter: Initialize the cutter counter (number of cuts).

Refer to Section 7.1 List of Initial Value of the CL4NX/CL6NX operator manual and Section 2.4 Initial Values in Tools Menu of this manual for the initial value of each setting item.

2 Operation and Configuration

CL4NX/CL6NX Service Manual

Clone

Tools > Service > Clone

Save the setting information of the printer to USB memory. Available only if you have installed the USB memory. You can duplicate (copy) the setting information stored in the USB memory to other printers. The operation procedures are as follows:

Duplicating the setting information of the printer to USB memory

1. Insert the formatted USB memory into the USB connector.

2. Select Clone in the Service menu.

3. Press the right soft button to start to duplicate the setting information. Press the left soft button to cancel the duplication.

Duplicating the setting information of the printer stored in the USB memory to other printers

1. Power on the printer that you want to duplicate the setting information.

2. Connect the USB memory with setting information to the USB connector of the printer.

3. Press the right soft button to start to duplicate the setting information.

4. When the duplication of the setting information completes, the printer reboots automatically.

5. Remove the USB memory from the printer.

Note

You can use both front and rear USB connectors (Type A).

Printer Serial

Tools > Service > Maintenance > Printer Serial

Manually enter the serial number of the printer after replacing the main (CONT) PCB.

2 Operation and Configuration

CL4NX/CL6NX Service Manual

Offset

Tools > Service > Offset

Factory setting of the offset position. Offset position refers to the tear-off position, cut position and dispense stop position. Set the offset value '+' to move the stop position opposite the feed direction and value '-' to move the stop position in the feed direction. The setting range is from -99 to 0 to 99 dots.

Note

The sum of the offset values in the Service menu and Printing menu is the actual offset position.

Pitch

Tools > Service > Pitch

Factory setting of the print position. Offset the print position in the vertical direction. Set the offset value '+' to move the print position opposite the feed direction and value '-' to move the print position in the feed direction. The setting range is from -99 to 0 to 99 dots.

Note

The sum of the offset values in the Service menu and Printing menu is the actual vertical print position.

2 Operation and Configuration

CL4NX/CL6NX Service Manual

2.4

Initial Values in Tools Menu

The initial value of the service items are as follows:

Setting Item Initial Value User

Reset

Factory

Reset

Service   

RFID   

RFID Mode Enabled No Yes

Module  No Yes

Region United States No Yes

Inventory Check Enabled No Yes

Inventory Timeout 100 ms No Yes

Verify Enabled No Yes

PREND Type 3/4 Normal No Yes

Hide Help Videos  No No

Wi-F Region World Mode No No

Reset Enabled  

Select   

Counters  No Yes, not

life

Clone Copies settings to USB No No

Maintenance   

Printer Serial  No No

Offset 0 dot No 

Pitch 0 dot No 

2 Operation and Configuration

CL4NX/CL6NX Service Manual

2.5

Downloading Firmware

You can easily use the USB thumb drive memory to download the firmware.

1 Save the pkg-file to the USB thumb drive

memory.

2 Press the power button on the

operator panel for more than one second to power on the printer.

3 Insert the USB thumb drive memory into

the USB connector (Type A).

The Install package screen shows.

Note

You can use either front or rear USB connector (Type A).

4 Press the right soft button to start

downloading the firmware package.

The Password screen shows if USB or Always is selected in the Install Security menu. Enter the password used for level1 or manager to proceed downloading the firmware package.

5 The printer starts to prepare and download

the firmware to the printer.

The Updating screen shows the status of the process and a warning message. Do not power off the printer and do not remove the USB memory while the printer is updating.

6 After the update process is completed, the

printer reboots.

You can remove the USB memory and insert into another printer for downloading.

• If the USB is removed. No more messages are shown. The printer enters online mode.

• If the USB is still in the printer and the firmware is updated, the Install package screen shows again. Press the left soft button and remove the USB memory from the printer. The printer enters offline mode.

CL4NX/CL6NX Service Manual

You can first refer to the Chapter 6 Troubleshooting of CL4NX/CL6NX operator manual to identify the cause of errors or problems with the printer. If you cannot find the solution to the problem, continue with the following troubleshooting flowchart.

3.1

Troubleshooting Flowchart

When a problem occurs, you can easily trace the solution with the following troubleshooting flowcharts. For each problem, the chart shows its symptoms, possible causes, and suggested corrective actions.

3.1.1

Power Problem

Troubleshooting

Category

Symptom

Cause Remedy

Maintenance

Power

Is the power

cord connected?

Connect the

power cord

correctly

YES

No power

supply

Is DC

voltage

(5V) OK?

YES

Check DC power

voltage (5V)

Replace the

power supply unit

Check DC power

voltage (3.3V,

1.8V, 1.26V)

Replace the

CONT PCB

Replace the

KB PCB

Refer to

4.1

Checking the Direct Current Power Voltage

Refer to

5.7

Replacing the

Power Supply Unit

Refer to

4.1

Checking the Direct Current Power Voltage

Refer to

5.5

Replacing the Main

(CONT) PCB

Refer to

5.6

Replacing the KB

PCB

3 Troubleshooting

CL4NX/CL6NX Service Manual

3.1.2

Feed Problem

Category

Symptom

Cause Remedy

Maintenance

Feeding

Is DC voltage

(24V) OK?

Check DC power

voltage (24V)

YES

Cannot

feed media

Is the media

installed

correctly?

YES

Install the

media correctly

Replace the

power supply unit

Make sure that

the connections

are correct

Replace the

Motor

Replace the

CONT PCB

Is the

sensor type

correct?

YES

Select the correct

sensor type

Is the platen roller clean?

YES

Clean the

platen roller

Is the platen

roller

rotatable?

YES

Are the cable

connections

OK?

YES

Replace the platen roller

Refer to

4.1

Checking the Direct Current Power Voltage

Refer to

5.7

Replacing the

Power Supply Unit

Refer to

5.3

Replacing the

Platen Roller

Refer to

5.5

Replacing the Main

(CONT) PCB

3 Troubleshooting

CL4NX/CL6NX Service Manual

Category

Symptom

Cause Remedy

Maintenance

Feeding

Is the

sensor type

correct?

Select the

correct sensor

type

YES

Does not stop

at specified

position

Is the

sensor level

correct?

YES

Adjust the I-mark,

Gap sensor level

Replace the

I-mark, Gap PCB

Replace the

CONT PCB

Replace the

sensor cable

Refer to

4.3

Checking and

Adjusting the

Media Sensor

Refer to

5.4 Replacing the Media Sensor

Refer to

5.5

Replacing the Main

(CONT) PCB

Refer to

5.4 Replacing the Media Sensor

3 Troubleshooting

CL4NX/CL6NX Service Manual

3.1.3

Print Problem

Category

Symptom

Cause Remedy

Maintenance

Refer to 3.1.2

“Cannot feed

media”

Printing

Is the

interface cable

connected?

Connect the

interface cable

YES

Printing

does not

start

Is the

interface

setting

correct?

YES

Correct the

interface settings

Connect the

head cable in

power off mode

Replace the

print head

Replace the

CONT PCB

Is the

data input

correct?

YES

Input the

data again

Feed the media

Is the

data input

correct?

YES

Is the

head cable

connected?

YES

Input the

data again

Blank

media are

issued

Refer to

5.2

Replacing the Print

Head

Refer to

5.5

Replacing the Main

(CONT) PCB

+ 130 hidden pages

SATO CL4NX,CL6NX Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual