Citizen

Citizen CL-S621IINNUBK-P Thermal Transfer Label Printer with Peeler | NEOTECH® UAE

AED 4,666.80

~~AED 5,158.80~~ AED 4,666.80

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Professional 4-Inch Direct Thermal & Thermal Transfer Barcode Printer with 203 dpi, Integrated Label Peeler, USB, RS-232, 104 mm Print Width and Up to 360 m Ribbon Capacity

Brand: Citizen
Model: CL-S621II
SKU / MPN: CL-S621IINNUBK-P
Configuration: 203 dpi, Direct Thermal / Thermal Transfer, Peeler, USB + RS-232
Colour: Grey / Black

Product Overview

The Citizen CL-S621II CL-S621IINNUBK-P is a specific peeler-equipped configuration of Citizen's professional CL-S621II 4-inch desktop barcode label printer.

This configuration combines 203 dpi resolution, direct thermal and thermal transfer printing, USB and RS-232 connectivity with an integrated label peeler for workflows where labels are printed and immediately removed from their backing liner for application.

Citizen describes the CL-S621II as a versatile desktop printer using its Hi-Lift™ all-metal mechanism, ARCP™ automatic ribbon tensioning system, Hi-Open™ case and Cross-Emulation™ architecture.

The standard CL-S621II platform provides printing speeds up to 150 mm/s / 6 ips, a maximum print width of 104 mm, media widths up to 118 mm, and thermal-transfer ribbons up to 360 metres.

However, the peeler configuration has an important operational difference: Citizen documentation specifies 2, 3 or 4 inches per second in peeler operation, so the standard 150 mm/s / 6 ips headline speed should not be presented as the peeler-mode speed.

The defining configuration for this page is:

CL-S621IINNUBK-P = CL-S621II + 203 dpi + Direct Thermal/Thermal Transfer + Peeler + USB/RS-232

Professional Highlights

Citizen CL-S621II desktop barcode label printer
Exact SKU / MPN: CL-S621IINNUBK-P
Peeler-equipped configuration
203 dpi / 8 dots per mm resolution
Direct thermal printing
Thermal transfer printing
Standard print speed up to 150 mm/s / 6 ips
Peeler operation at applicable 2, 3 or 4 ips settings
Maximum print width 104 mm / 4 inches
Media width up to approximately 118 mm
USB 2.0 connectivity
RS-232C serial connectivity
Up to 360 m thermal-transfer ribbon capacity
Inside- and outside-wound ribbon support
Wax, wax/resin and resin ribbon support with suitable media
ARCP™ automatic ribbon tension adjustment
Hi-Lift™ all-metal print mechanism
Hi-Open™ vertically opening case
Adjustable gap sensor
Notch sensing
Reflective black-mark sensing
Cross-Emulation™
Zebra® ZPL2® emulation
Datamax® DMX emulation
Eltron® EPL2® support
Internal power supply
Designed for print-and-apply workflows

Exact Configuration - CL-S621IINNUBK-P

This page is specifically for:

Citizen CL-S621II
SKU / MPN: CL-S621IINNUBK-P

This configuration is identified as a:

203 dpi Direct Thermal / Thermal Transfer CL-S621II with Peeler

The “-P” configuration is important because other CL-S621II part numbers can be supplied without a peeler or with different options such as Ethernet, Wi-Fi or an automatic cutter.

When peel-and-present operation is required, the exact part number should therefore be verified rather than ordering by the general CL-S621II model name alone.

Integrated Label Peeler

The principal feature of CL-S621IINNUBK-P is its peeler configuration.

Citizen's peel mode is designed to:

separate the printed label from its backing liner after printing.

This means the operator can take the presented label and apply it directly to the intended:

Product
Package
Carton
Component
Container
Inventory item
Document
Other suitable surface

This can reduce the manual step of peeling each label from its backing.

What Does a Label Peeler Do?

With ordinary label printing, the printed label normally remains attached to its release liner.

With peel mode, the printer separates the label from the liner as part of the printing workflow and presents it for removal.

This can be particularly useful where an operator repeatedly performs:

Print → Remove Label → Apply Label → Print Next Label

Typical environments include:

Packing stations
Product labeling
Manufacturing workstations
Inventory processing
Goods receiving
Dispatch
Retail back rooms
Component identification

Peeler Is Not a Liner Rewinder

It is important to distinguish a basic peeler from an industrial peel-and-rewind system.

Citizen lists the CL-S621II with a basic peeler option, while its product information separately states that an internal peel-and-rewind mechanism is not part of this platform.

Therefore, the CL-S621IINNUBK-P should be described as a peeler-equipped printer, not as an automatic backing-paper rewinder.

If the application requires continuous high-volume peeling with automatic liner rewinding, a different industrial printer configuration may be more appropriate.

Peeler-Mode Print Speed

Citizen's standard CL-S621II specification lists a maximum printing speed of:

150 mm/s / 6 ips

for applicable normal direct-thermal operation.

However, Citizen's technical documentation specifies the following for the optional peeler:

2, 3 or 4 inches per second

when the peeler is used.

This distinction is important.

The CL-S621IINNUBK-P should therefore not be marketed as printing at 6 ips while actively operating in peel mode.

Actual throughput also depends on how quickly the operator removes each presented label.

Thermal Transfer Printing

The CL-S621II supports thermal transfer printing using a compatible ribbon and label material.

Thermal transfer may be appropriate for applications requiring greater label durability than ordinary direct thermal media can provide.

Potential applications include:

Product identification
Inventory labels
Manufacturing labels
Component labels
Warehouse labels
Asset-related identification
Longer-life barcode labels

The ribbon and label material should be matched to the application's durability requirements.

Direct Thermal Printing

The CL-S621II also supports:

Direct Thermal

printing.

Direct thermal printing uses compatible heat-sensitive media without requiring a thermal-transfer ribbon.

Potential applications include:

Shipping labels
Dispatch labels
Temporary inventory labels
Receiving labels
Shorter-life barcode labels

This allows the same printer to support both ribbon-based and ribbon-free labeling workflows.

203 dpi Resolution

The CL-S621II provides:

203 dpi / 8 dots per mm

resolution.

This is suitable for many general-purpose:

Barcode labels
Product labels
Warehouse labels
Inventory labels
Shipping labels
Text labels
Logos
2D codes

Applications involving very small text or high-density barcodes may benefit from a suitable 300 dpi printer instead.

104 mm Maximum Print Width

The maximum printable width is:

104 mm / approximately 4 inches

This provides the CL-S621II with broad compatibility across common desktop barcode-label applications.

Media Width

Citizen specifies media widths up to:

118 mm / approximately 4.6 inches

The physical media width can therefore be wider than the maximum printable area.

The exact minimum media width can also depend on the operating configuration and media setup, so unusually narrow labels should be checked before ordering in quantity.

Media Thickness

Citizen specifies media thickness of approximately:

63.5 to 254 μm

for the CL-S621II platform.

For peel-mode applications, media construction is particularly important because the label and liner must separate reliably through the peeler mechanism.

Peeler Media Compatibility

Not every adhesive label is automatically suitable for reliable peel-and-present operation.

Before deploying the printer, consider:

Label size
Label material
Adhesive
Liner stiffness
Liner thickness
Gap between labels
Label shape
Environmental conditions
Printing speed

Testing the actual label stock is recommended for business-critical peel-and-apply workflows.

Up to 360 m Ribbon Capacity

For thermal-transfer applications, the CL-S621II supports ribbons up to approximately:

360 metres

with a:

25 mm / 1-inch core

and maximum outside diameter of approximately:

74 mm.

Long ribbon capacity can reduce interruptions from frequent ribbon replacement.

Inside & Outside Wound Ribbons

The CL-S621II supports applicable:

Inside-wound ribbons
Outside-wound ribbons

Citizen specifies selectable ink-side-in or ink-side-out operation.

This provides flexibility when sourcing suitable thermal-transfer consumables.

Ribbon Types

Depending on the label material and application, compatible ribbon types can include:

Wax
Wax/resin
Resin

The correct ribbon should be selected according to the label material and required durability rather than from the printer model alone.

ARCP™ Ribbon Control

Citizen's ARCP™ automatic ribbon tension adjustment is designed to help maintain appropriate ribbon tension and reduce ribbon wrinkling during thermal-transfer printing.

This is particularly useful when producing wider thermal-transfer labels.

Hi-Lift™ Metal Mechanism

The CL-S621II incorporates Citizen's:

Hi-Lift™ all-metal mechanism

with a wide-opening printhead.

This provides convenient access when loading:

Label media
Thermal-transfer ribbons

and supports regular professional desktop use.

Hi-Open™ Case

Citizen's Hi-Open™ case opens vertically.

This minimizes the additional workspace required behind the printer when the cover is opened.

It can be useful at:

Packing stations
Warehouse desks
Retail counters
Production workstations
Compact labeling stations

Adjustable Media Sensors

The CL-S621II provides adjustable sensing for:

Label gaps
Notches
Reflective black marks

Correct sensor positioning and media calibration are important for accurate label registration.

USB 2.0 Connectivity

The standard CL-S621II interface includes:

USB 2.0 Full Speed

for connection to compatible host computers and business systems.

RS-232C Serial Connectivity

The standard dual-interface configuration also provides:

RS-232C Serial

connectivity.

Serial communication can be useful for:

Manufacturing equipment
Industrial computers
Existing POS systems
Legacy applications
Specialized business systems

The host and printer serial parameters must be configured correctly.

Ethernet - Do Not Assume

Ethernet is available within the broader CL-S621II platform, but it should not be assumed to be installed in CL-S621IINNUBK-P based solely on the CL-S621II model name.

If the requirement is:

Peeler + Ethernet

the exact Citizen configuration should be confirmed before ordering.

Wi-Fi - Do Not Assume

Wireless LAN is also available as an option within the CL-S621II family.

It should not be assumed to be included with CL-S621IINNUBK-P.

If Wi-Fi is required together with a peeler, request configuration verification.

Cutter - Not the Same as Peeler

A peeler and cutter perform different functions.

Peeler

Separates an adhesive label from its backing liner and presents the label for application.

Cutter

Cuts the printed media at a specified position.

The CL-S621IINNUBK-P is the peeler configuration.

Do not assume that an automatic cutter is also included.

Citizen Cross-Emulation™

Citizen's Cross-Emulation™ system supports established printer command environments including:

Datamax® DMX
Zebra® ZPL2®
Eltron® EPL2®
Citizen CBI™ BASIC Interpreter

Cross-Emulation can assist migration from compatible existing label-printer environments.

It does not guarantee identical operation with every manufacturer-specific command or existing label template, so testing is recommended for business-critical migrations.

Barcode Printing

The CL-S621II platform supports common 1D barcode formats for applications such as:

Product identification
Inventory
Warehousing
Manufacturing
Retail
Shipping
Logistics

Barcode size and print quality should be validated with the actual scanning workflow where readability is critical.

2D Code Printing

Applicable CL-S621II command environments support 2D codes including:

QR Code
Data Matrix
PDF417
MaxiCode
Aztec

The printer generates these codes from data provided by the application; it does not scan or independently verify the encoded information.

Print-and-Apply Workflows

The peeler configuration is especially relevant when labels are printed individually and immediately applied.

Examples include:

Product Labeling

Print a label, remove it from the peeler and apply it directly to the product or packaging.

Packing Stations

Print an order or identification label and immediately apply it to the corresponding package.

Manufacturing

Print component or work-in-progress labels and apply them during the production process.

Inventory

Print stock-identification labels during receiving, counting or item registration.

Retail

Produce labels for products or internal stock-handling processes.

Technical Specifications

Brand: Citizen
Model: CL-S621II
SKU / MPN: CL-S621IINNUBK-P
Product Type: Desktop Barcode Label Printer with Peeler
Colour: Grey / Black
Printing Technology: Thermal Transfer + Direct Thermal
Resolution: 203 dpi / 8 dots per mm
Maximum Standard Print Speed: Up to 150 mm/s / 6 ips
Peeler-Mode Speed Settings: 2, 3 or 4 ips according to Citizen technical documentation
Maximum Print Width: 104 mm
Media Width: Up to approximately 118 mm
Media Thickness: Approximately 63.5–254 μm
Media Types: Roll and fanfold; applicable continuous media, die-cut labels, tags, paper and tickets
Media Sensors: Adjustable gap, notch and reflective black-mark sensor
Maximum Ribbon Length: 360 m
Ribbon Core: Approximately 25 mm / 1 inch
Maximum Ribbon Outside Diameter: Approximately 74 mm
Ribbon Winding: Ink side in or out, selectable
Ribbon Types: Wax, Wax/Resin or Resin with suitable media
Peeler: Included in this configuration
Internal Peel & Rewind: No
Cutter: Do not assume
USB: USB 2.0 Full Speed
Serial: RS-232C
Ethernet: Optional within product family; do not assume for this SKU
Wireless LAN: Optional within product family; do not assume for this SKU
Mechanism: Citizen Hi-Lift™ metal mechanism
Ribbon System: Citizen ARCP™ automatic tension adjustment
Case: Citizen Hi-Open™ design
Power Supply: Internal

Memory

RAM: 32 MB total, approximately 8 MB available to user
Flash: 16 MB total, approximately 4 MB available to user

Dimensions

Approximately:

231 × 289 × 270 mm

Weight

Approximately:

4.5 kg

CL-S621IINNUBK-P vs Standard CL-S621II

CL-S621IINNUBK-P

203 dpi
Direct thermal + thermal transfer
USB
RS-232
Peeler
Print-and-apply workflow
Automatically separates applicable labels from liner

Standard CL-S621II

Same core 203 dpi platform
Direct thermal + thermal transfer
USB
RS-232
Standard tear-off workflow
Peeler not necessarily installed

Choose the -P configuration when peel-and-present operation provides a genuine workflow benefit.

Peeler vs Cutter

These options solve different problems.

Choose a Peeler When

The operator needs to:

Print → Remove Label → Apply Label

repeatedly.

Choose a Cutter When

The application requires the printer to:

Print → Cut Media

automatically.

A peeler is normally more useful for individual adhesive labels that need to be immediately applied.

A cutter can be more useful for continuous media, tags or tickets.

CL-S621II vs CL-S631II

The main print-quality difference is resolution.

CL-S621II

203 dpi

Suitable for many ordinary barcode, product, warehouse and inventory labels.

CL-S631II

300 dpi

May be preferable for:

Smaller text
Smaller barcodes
Dense layouts
Fine graphics
Labels requiring greater detail

Select resolution according to the actual label design rather than assuming that higher dpi is always necessary.

Applications

The Citizen CL-S621II CL-S621IINNUBK-P may be considered for:

Product labels
Barcode labels
Inventory labels
Manufacturing labels
Component labels
Packing labels
Warehouse labels
Receiving labels
Dispatch labels
Retail labels
Price labels
Work-in-progress labels
QR Code labels
Data Matrix labels
Print-and-apply labeling stations

Purpose of Use

The CL-S621IINNUBK-P is particularly suitable when the requirement combines:

4-inch desktop label printing
203 dpi resolution
Direct thermal printing
Thermal-transfer printing
Peel-and-present operation
USB connectivity
RS-232 connectivity
Long ribbon capacity
Flexible media sensing
Professional desktop construction
Repeated manual label application

Things to Verify Before Ordering

Please confirm:

Exact SKU: CL-S621IINNUBK-P
Required quantity
Peeler requirement
Label dimensions
Label material
Liner/backing material
Adhesive type
Direct thermal or thermal-transfer requirement
Ribbon type
USB requirement
RS-232 requirement
Ethernet requirement, if any
Wi-Fi requirement, if any
Software/application
Barcode format
Existing printer language/templates
Expected print volume
Package contents
Regional power cable
Current availability
Applicable UAE warranty

For peeler applications, providing a sample label or exact label specification before larger deployment is recommended.

Who Should Consider the CL-S621IINNUBK-P?

This configuration may be suitable for:

Warehouses
Manufacturers
Packing stations
Product-labeling stations
Retail operations
Distribution businesses
Inventory departments
Goods-receiving stations
Businesses repeatedly printing and immediately applying labels

Who May Need a Different Configuration?

Consider another configuration if:

Labels do not need to be peeled automatically
Ethernet is required as an installed interface
Wi-Fi is required
Automatic cutting is required instead of peeling
Automatic liner rewinding is required
300 dpi is required
RFID encoding is required
Heavy industrial continuous operation is expected

A peeler adds the most value where operators actually remove and apply labels one at a time. If ordinary batch label printing is the workflow, the standard CL-S621II may be simpler.

Compatibility

Compatibility depends on:

Exact printer configuration
Label dimensions
Label and liner construction
Printing method
Ribbon/media combination
USB or serial interface
Operating system
Driver
Label software
Printer command language
Existing templates

For a business-critical peel-and-apply process, testing the actual labels, ribbon and software before quantity deployment is recommended.

How to Use

Position the printer on a stable indoor work surface.
Connect the appropriate power cable.
Load compatible label media.
Install the correct ribbon when using thermal-transfer printing.
Route the label media correctly through the peeler mechanism.
Adjust the media guides and sensor position.
Connect the printer through USB or RS-232.
Install the appropriate Citizen driver or configure the required printer emulation.
Select the correct label dimensions and printing method.
Enable/configure peel mode as required.
Print a test label.
Confirm that the label separates correctly from the liner.
Remove the presented label.
Check that the next label advances correctly.
Verify print quality and barcode readability.
Test the complete print-and-apply workflow before production use.

Why NEOTECH® UAE?

NEOTECH® focuses on verifying the exact Citizen configuration because the same CL-S621II platform is available with materially different interfaces and finishing options.

Exact CL-S621II SKU verification
Peeler versus cutter guidance
Label and liner compatibility review
Direct thermal versus thermal-transfer guidance
Ribbon selection guidance
203 dpi versus 300 dpi guidance
USB and RS-232 requirement checking
Network-interface requirement clarification
Existing printer migration guidance
Print-and-apply workflow review
Transparent availability and lead-time communication
UAE-focused quotation and delivery support
No pressure to purchase a peeler when the workflow does not require one

Learn First. Decide Second.

Request a Quote or Order in the UAE

Looking for the Citizen CL-S621II CL-S621IINNUBK-P 203 dpi Thermal Transfer Label Printer with Peeler?

For an accurate quotation, please provide:

Quantity
Exact SKU requirement
Label size
Label material
Liner/backing specification where available
Direct thermal or thermal-transfer requirement
Ribbon requirement
Peeler application
USB or RS-232 requirement
Software/application
Existing printer model, if replacing one
Sample label where available

For a peeler application, sharing the actual label specification can help confirm whether the media is appropriate before ordering.

For price, availability or a formal quotation:
Email: support@neotech.ae

Learn First. Decide Second.

Delivery - UAE

Delivery is available within the United Arab Emirates.

Order Cut-Off: 14:00 GST
Handling: 1–2 business days where applicable
Standard Transit: Approximately 3–5 business days after handling
Typical Total Delivery: Approximately 4–7 business days for confirmed available products

For non-stock or special-order configurations, delivery may extend to approximately 10–15 working days or up to 25 working days after payment/order confirmation, depending on supplier/manufacturer availability.

The exact CL-S621IINNUBK-P peeler configuration, current availability and applicable package contents should be confirmed before ordering.

FAQ - Citizen CL-S621II CL-S621IINNUBK-P

Q: What is the Citizen CL-S621IINNUBK-P?
A: It is a specific 203 dpi CL-S621II desktop label printer configuration supporting direct thermal and thermal-transfer printing with an integrated basic label peeler.

Q: Does CL-S621IINNUBK-P include a peeler?
A: Yes. This SKU is specifically identified as the peeler-equipped CL-S621II configuration.

Q: What does the peeler do?
A: It separates an applicable printed adhesive label from its backing liner so the operator can remove and apply the presented label.

Q: Does the peeler rewind the backing liner automatically?
A: Do not treat this configuration as an internal peel-and-rewind system. Citizen identifies a basic peeler for the CL-S621II and separately lists internal peel-and-rewind as unavailable.

Q: Is the printer 203 dpi?
A: Yes. It provides 203 dpi / 8 dots per mm resolution.

Q: Is it a thermal-transfer printer?
A: Yes.

Q: Can it also print direct thermal labels?
A: Yes. It supports both printing technologies.

Q: What is the maximum standard print speed?
A: Citizen specifies up to 150 mm/s / 6 ips for the CL-S621II platform under applicable standard operation.

Q: Does it run at 6 ips when using the peeler?
A: Citizen's technical documentation specifies 2, 3 or 4 ips settings when the optional peeler is used, so 6 ips should not be assumed in active peel mode.

Q: What is the maximum print width?
A: Approximately 104 mm.

Q: What is the maximum media width?
A: Approximately 118 mm.

Q: How long a ribbon can it use?
A: Up to approximately 360 metres.

Q: Can it use wax ribbon?
A: Yes, with suitable media.

Q: Can it use wax/resin ribbon?
A: Yes.

Q: Can it use resin ribbon?
A: Yes, with compatible media.

Q: Does it support inside- and outside-wound ribbons?
A: Yes. Citizen specifies selectable ink-side-in or ink-side-out ribbon operation.

Q: Does it have USB?
A: Yes. USB 2.0 is part of the standard dual-interface platform.

Q: Does it have RS-232?
A: Yes.

Q: Does this exact SKU include Ethernet?
A: Ethernet should not be assumed for CL-S621IINNUBK-P. If Ethernet and a peeler are both required, the exact Citizen configuration should be verified.

Q: Does it include Wi-Fi?
A: Wi-Fi should not be assumed for this SKU.

Q: Does it include a cutter?
A: No cutter should be assumed. A cutter and a peeler are different finishing options.

Q: Does it support Zebra ZPL?
A: The CL-S621II supports Zebra ZPL2 emulation through Citizen's Cross-Emulation architecture.

Q: Does it support Datamax emulation?
A: Yes, Datamax DMX emulation is supported.

Q: Can it print QR Codes and Data Matrix codes?
A: Yes, through supported printer-language and application workflows.

Q: Is the peeler useful for shipping labels?
A: It can be useful where individual shipping or identification labels are printed and immediately applied, but media suitability and the actual workflow should be checked. For batch printing of many shipping labels, a peeler may not provide an advantage.

Q: Can every adhesive label be used with the peeler?
A: Not necessarily. Label size, liner construction, adhesive, material and other media characteristics can affect reliable peeling. Testing the actual label stock is recommended.

Q: What should I verify before ordering?
A: Confirm the exact CL-S621IINNUBK-P SKU, label and liner dimensions, printing method, ribbon/media combination, peeler workflow, USB/RS-232 requirement, software compatibility, quantity, package contents, availability and applicable UAE warranty.

Contact - NEOTECH® UAE

For Citizen CL-S621II CL-S621IINNUBK-P configuration verification, peeler-media compatibility or quotation:

Email: support@neotech.ae
Address: Store 13, Computer Building, Al Fahidi, Bur Dubai, Dubai 44245, UAE

Disclaimer - NEOTECH® UAE

Citizen, CL-S621II, Cross-Emulation™, Hi-Lift™, Hi-Open™, ARCP™ and related names are trademarks or product identifiers of their respective owners.

This page specifically identifies CL-S621IINNUBK-P as a 203 dpi direct thermal / thermal-transfer CL-S621II configuration with a peeler. Other CL-S621II part numbers can have different interfaces and finishing options.

The peeler is intended to separate compatible adhesive labels from their backing liner. Reliable peel operation depends on label size, media, adhesive and liner construction. It should not be treated as an internal backing-liner rewinder.

The standard CL-S621II platform is rated up to 150 mm/s / 6 ips under applicable operation; Citizen technical documentation specifies 2, 3 or 4 ips when the peeler is used.

Printer-language emulation can assist migration but does not guarantee identical operation with every existing command, template or application.

Media, ribbon, software, operating-system compatibility, package contents, current availability and applicable UAE warranty should be confirmed before ordering.

Last Updated: 30 September 2026 (GST, UTC+4)

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Citizen CL-S621IINNUBK-P Thermal Transfer Label Printer with Peeler | NEOTECH® UAE