Zebra ZD620 User Manual

204
Print Operations
Adjusting the Print Quality
Print quality is affected by the heat (density) setting of the printhead, the print speed, and
the media in use. Experiment with these settings to find the optimal mix for your
application. Print quality can be configured with the Zebra Setup Utility’s ‘Configure Print
Quality’ routine.
Note • Media manufacturers may have specific recommendations for speed settings for
your printer and the media. The recommended speed may be lower than your printer’s
maximum speed setting!
The darkness (or density) setting can be controlled by:
• The Set Darkness (~SD) ZPL command (consult your ZPL Programming Guide).
• See the Manual Print Darkness Adjustment.
• See the Darkness Control.
If you find that the print speed needs to be adjusted, use:
• The Windows printer driver or application software such as ZebraDesigner ™ .
• The Print Rate (^PR) command (consult your ZPL Programming Guide).
Use the printer’s ‘Print Quality Report’ (also known as the FEED Self Test) to print a range
of labels that help you identify print DARKNESS and SPEED settings for optimizing
general print and barcode quality. See the
Print Quality Report (FEED self test) for details.
The printer’s media settings can be verified by printing a Printer Configuration label. See
the Test Printing with the Configuration Report for more details.
The maximum distance the automatic media type detection and sensing checks can be
reduced using the ZPL Maximum Label Length command (^ML). The minimum distance
should be no less than two times the longest label being printed. If the largest label being
printed was a 2 by 6 inch label, then the maximum label (media) length detection distance
can be reduced from the default distance of 39 inches down to 12 inches.
Note • See About section for information and support links for your specific printer model.

Zebra ZD620 Specifications

General

Color	-
Print technology	Direct thermal
Maximum resolution	203 x 203 DPI
Maximum print height	- mm
Maximum printing width	104 mm
Flash memory	512 MB
Internal memory	256 MB
Number of fonts	16
Built-in barcodes	1D, 2D, AZTECCODE, CODABAR (NW-7), Code 11, Code 128 (A/B/C), Code 39, Code 49, Code 93, Data Matrix, EAN13, Industrial 2/5, Interleaved 2/5, MaxiCode, Micro QR Code, MicroPDF417, PDF417, POSTNET, QR Code, UPC-A, UPC-E
Page description languages	EPL2, XML, ZBI, ZPL II
Display	LCD
Color display	Yes
Product color	Black, Grey
Display resolution	320 x 240 pixels
Wi-Fi standards	Wi-Fi 5 (802.11ac)
Bluetooth version	4.1
USB 2.0 ports quantity	1
Connectivity technology	Wired & Wireless
Mobile operating systems supported	Android, iOS
Storage temperature (T-T)	-40 - 60 °C
Operating temperature (T-T)	4.4 - 41 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	10 - 90 %
Media thickness	0.08 - 0.1905 mm
Maximum label length	0.991 m
Maximum roll diameter	127 mm

Weight and Dimensions

Depth	221 mm
Width	177 mm
Height	151 mm