ZEBRA GK420d & GK420t PRINTER SPECIFICATIONS

 

Standard Features

• Maximum speed 5 ips (127 mm/s)
• OpenACCESS™ design for easy media loading
• 203 dpi print resolution (8 dots/mm)
• Direct thermal (d) and Thermal transfer (t) printing of bar codes, text, and graphics
• Fully enclosed 5.0" (127mm) media compartment
• Dual-wall frame
• ZPL II® programming language
• EPL2® page mode programming language
• EPL Line Mode support (GK420d)
• 32 bit RISC processor
• 8MB Standard SDRAM Memory (3MB available to user)
• 4MB Standard Flash Memory (1.5 MB available to user)
• Zebra E3 Printhead Energy Control
• Dual communications interface: RS-232 Serial & USB (V1.1)
• User interface feed button (ZPL style)
• Odometer for print length tracking
• Unicode compliant for multi-language printing
• Auto-Calibration of media
• 16 resident expandable bitmap fonts (ZPL language)
• One resident scalable font (ZPL language)
• 5 resident expandable bitmap fonts (EPL language)
• Auto-switching 100- 240V power supply
• Transmissive and reflective media sensing
• Head-up sensor
• Programmable print speed: 2, 3, 4 & 5ips (51, 76, 102, 127 mm/s)
• Standard Tear-off mode feature
• Zebra printer driver for Windows
          XML Printing  
           

Calibration Procedure

• The GK420 is equipped with a standard auto-calibration feature that can be set to initiate automatically during start-up of the printer - utilizing two to four labels to calibrate for efficient operation and less waste. The printer will also save the new settings in memory until the next calibration is performed.
• A manual calibration procedure can also be performed, if required. Consult your User’s Guide for more details on the specific manual calibration steps.

Optional Features

Factory Options:

Dispenser (peeler) – Label peel and present with label present sensor
ZebraNet™ 10/100 Print Server – internal interface enables Ethernet 10/100 network communication and printing (replaces serial port)
 
Field Options:
Documentation  
105934-052 CD-ROM, Desktop Printers Software & Documentation
Keyboards (for stnd alone printing solutions)  
120181-005G Keyboard Display Unit (KDU) 
105850-026 KDU Adapter
120182G-001 KDU Plus 
Connectivity Kits  
105850-006 USB Interface Cable 6’ (A to B)
G105850-007 USB Interface Cable 10’ (A to B)
G105950-054 Serial Interface Cable - 6’ (DB-9 to DB-9) Null Modem
Power supplies and power cord kits  
105934-053 GK Power supply with USA, Europe cords
105950-014 Power Cord, 120V US C13 (set of 5)
105950-015 Power Cord, 220V Euro C13 (set of 5)
105950-030 Power Cord, 240V UK,C13 (set of 5)
105950-029 Power Cord, 240V AUS C13 (set of 5)
105950-078 Power Cord, 220V China C13 (set of 5)
105950-079 Power Cord, 125V Japan C13 (set of 5)
105950-080 Power Cord, 220V Argentina C13 (set of 5)
Font Kits  
77840 Five Asian Bitmap Flash Font Pack 
77842 Over 20 Smooth Scalable Font Pack
77844 Korean HY Gothic Hangul™ Smooth Scalable Font 
77845 Thai Angsana™ Smooth Scalable Font 
77846 Simplified Chinese Monotype Sung™ Smooth Scalable Font
77847 Traditional Chinese Monotype Kai™ Smooth Scalable Font 
77848 Japanese HGP Gothic B™ Smooth Scalable Font 
Desktop Printheads  
105934-037 Printhead Assembly, GK420d/ GX420d (203 dpi)
105934-038 Printhead Assembly, GK420t/GX420t (203 dpi)

Software

  • 13831-001 Zebra Designer Pro

  • 48733-120 ZebraNet Bridge Enterprise for 1-50 Printers

  • 48734-120 ZebraNet Bridge Enterprise for 1-100 Printers

  • 48735-120 ZebraNet Bridge Enterprise for 100+ Printers

Printing Specifications

• Resolution: 203 dots/inch (dpi) (8 dots/mm)
• Dot Pitch: 0.0049” (0.125mm)
• Maximum print length: 39.0" (991mm)
• Minimum print length: 0.005" (0.127mm – one dot)
• Print length in line mode: Unlimited (GK420d)
• Maximum print width: 4.09" (104mm)
• Minimum print width: 0.005" (0.127mm – one dot)
• Programmable print speed: 2, 3, 4 & 5ips  (51, 76, 102, 127 mm/s)
• Bar code modulus “X” dimension: 203 dpi = 5mil to 50mil

Ribbon Specifications (thermal transfer units)

NOTE: For optimum print quality and printer performance, use of Zebra genuine ribbon is recommended as well as a notched ribbon core.

Ribbon Width: 1.33” (33.8mm) to 4.3” (109mm).
Ribbon Capacity: 1 roll of ribbon per 1 roll of 5”OD media
Core ID: 0.5” (12.7 mm).
Ribbon OD: 1.36” (35 mm).
Ribbon Length: 244' (74m) using 0.000328" ribbon thickness
Ribbon Type: Wax, wax/resin, and resin.

Media Specifications

NOTE: For optimum print quality and printer performance, use of Zebra genuine supplies is recommended.

Media Width: 0.75” (19mm) – 4.25” (108mm)
Label Length:
o Using tear off mode:

Minimum Length

Model

Printing Mode

0.38” (9.7 mm)

GK420d

Direct thermal

0.38” (9.7 mm)

GK420t

Thermal transfer

0.5” (12.7 mm)

GK420t

Direct thermal

o Minimum using dispenser -0.50”(12.7 mm)
o Maximum - 39.00" (990mm)
Min Core Inner Diameter: 0.5” (12.7mm)
Max Roll Diameter: 5.00” (127mm)
Media Thickness: 0.003” (0.08mm) - 0.0075” (0.19 mm)
Media Sensing: fixed reflective and transmissive gap, black line, and notch
Media Types: Roll-fed or fan-fold, die cut or continuous direct thermal labels with or without black line, tag stock, continuous receipt paper, and wristbands
Notched Media;

There are three kinds of notches, with recommended sizes and locations:

Oval:  Midpoint of notch located on the centerline. Height = 3mm. Width = 15mm.
Rectangle:  Midpoint of notch 4.45mm to the right of the centerline. Height = 3mm. Width = 6mm.
Circle:  Midpoint of notch 4.45mm to the right of the centerline. Diameter = 6mm.

Black Mark Specifications:

For Adjustable Mark Sensor:

  • Minimum length of black mark from left edge is 7mm
  • Minimum length of black mark from right edge is 20mm
  • Minimum thickness of black mark is 3mm (6mm nominal)
Use a full length black line for Fixed sensors.

ZPL Programming Language (ZPL/ZPL II)

Communicates in printable ASCII characters
Compatible with mainframe, mini, and PC hosts
Downloadable objects include graphics and bitmap fonts, label templates and formats
Automatic memory allocation for format while printing
Automatic serialization of fields
Format inversion (white on black)
Mirror-image printing
Four position field rotation (0º, 90º, 180º, 270º)
Slew command
Programmable label quantities with print, pause
Status messages to host upon request

ZPL Font Specifications

203 dpi (8 dots/mm)

Font

Matrix

(in dots)

(H x W)

Type*

Minimum Char.Size

(H x W)

Maximum

C.P.I.

A

9 x 5

U-L-D

.044" x .030"

33.3

B

11 x 7

U

.054" x .044"

22.7

C,D

18 x 10

U-L-D

.089" x .059"

16.9

E

28 x 15

OCR-B

.138" x .098"

10.2

F

26 x 13

U-L-D

.128" x .079"

12.7

G

60 x 40

U-L-D

.295" x .236"

4.2

H

21 x 13

OCR-A

.103" x .093"

10.8

GS

24 x 24

SYMBOL

.118" x .118"

8.5

P-V

U-L-D

Backward compatible w/ S-300

Ø

15 x 12

U-L-D

Scalable (Smooth) Font

* U = upper case, L = lower case, D = descenders

Character Fonts: Standard bitmapped Zebra fonts: A, B, C, D, E (OCR-B), F, G, H, (OCR-A), GS, P, Q, R, S, T, U, V & Ø Smooth font (CG Triumvirate Bold Condensed).
Supports user defined fonts and graphics – including custom logos
Bitmap fonts are expandable up to 10 times, height and width independent. Fonts E and H (OCR-B and OCR-A), however, are not considered in spec when expanded.
Smooth scalable font Ø (CG Triumvirate Bold Condensed) is expandable dot-by-dot, height and width independent, while maintaining edges to a max. 1500 x 1500 dots.

ZPL Barcode Symbologies

Bar code ratios: 2:1 (non-rotated) and 3:1

Linear bar codes: Code 11, Code 39, Code 93, Code 128, UPC-A, UPC-E, EAN-8, EAN-13, EAN-14, UPC-A and UPC-E with EAN 2 or 5 digit extensions, Plessey, POSTNET, Standard 2 of 5, Industrial 2 of 5, Interleaved 2 of 5, LOGMARS, MSI, Codabar, and

GS1 DataBar™ (formerly RSS)

2-dimensional bar codes: PDF417, MicroPDF-417, Code 49, Maxicode, Codablock, Data Matrix, QR code, and Aztec

EPL Programming Language (EPL2)

ASCII EPL2 programming language (Page Mode)
Field Rotations
Variable field support (up to 100)
Counter support (up to 10)
Variable field addition and subtraction
Status reporting
Form, fonts, and graphics storage
Simple set of formatting commands

EPL Font Specifications

203 dpi (8 dots/mm)

Font

Width

(dot)

Height

(dot)

CPI

1

8

12

20.3

2

10

16

16.9

3

12

20

4.5

4

14

24

12.7

5

32

48

5.6

8-Simp

32

32

6.3*

8-Trad

32

32

6.3*

* Spacing of Asian characters is controlled via the i command. The formula for CPI is 203 / (32 + i). Thus as i increases, CPI decreases. For example : If i = 2, CPI = 203/34 = 6.0

EPL Bar Codes Symbologies

Linear bar codes: Code 39, Code 128A, B & C (User selectable/Auto), UCC/EAN-128, Code 93, Codabar, Interleaved 2 of 5, UPC-A, UPC-E, UPC-A with 2 and 5 add on, UPC-E with 2 and 5 add on, EAN 13, EAN 8, EAN 13 with 2 and 5 add on, EAN 8 with 2 and 5 add on, Postnet (5, 9, 11, & 13 digit)

Japanese Postnet, Plessey (MSI-1), MSI-3, German Post Code, and GS1 DataBar™ (formerly RSS)

2-dimensional bar codes: Maxicode (modes 2,3,4,6), PDF417, MacroPDF417, QR Code, Data Matrix, and Aztec

Communications Specifications

RS-232 Serial interface, DB-9
USB V1.1, bi-directional
Internal 10/100 Ethernet – optional ( replaces RS232)

Electrical Specifications

Auto-detectable (PFC Compliant) 100-240VAC, 50-60Hz rated at 70Watts
           -It draws this full rated power (70 watts) when printing at 5ips, 20% black coverage, at a nominal density setting of 20
- not printing (but may be cutting or otherwise moving paper, ex: form feed) consumption: 15W max
 

Agency approvals

Emissions: FCC Part 15, Subpart B, VCCI, C-Tick
Emissions and Susceptibility: (CE): EN55022 Class-B, EN61000-3-2, EN61000-3-3, and EN55024
Safety: CB Scheme IEC 60950:1991 +A1 +A2 +A3 +A4, UL 60950 and C-UL, IRAM, NOM, AAMI, and CCC

Physical Specifications (no options installed)

GK420d

GK420t

Height

6.0" (152mm)

7.5" (191mm)

Width:

6.75" (171mm)

7.6" (193 mm)

Depth:

8.25" (210mm)

10.0” (254 mm)

Weight:

3.0lbs (1.4kg)

4.6lbs (2.1kg)

Environmental Specifications

Operating Temperature: 40º to 105ºF (4.4º to 41ºC)
Storage Temperature: -40º to 140ºF (-40º to 60ºC)
Operating Humidity: 10% to 90% non-condensing R.H.
Storage Humidity: 5% to 95% non-condensing R.H.

Preventative Maintenance

Zebra recommends cleaning the printer on a regular basis using standard Zebra printer parts and cleaning supplies. Consult your User’s Guide for further details