Standard Interface Controls

ZD620 and ZD420 Desktop Printers User Guide

This table describes the printers standard interface controls.

Standard Interface Controls
Icon	Button	Descriptions
	1. POWER button — Turns power to the printer ON and OFF. Also used to initiate low-power sleep and wake states.	Initial Power ON — Press the Power button until the printer’s indicator lights flash on. The indicator lights flash on and off in various combinations while the printer does self diagnostics, configuration checks, and integrates optional components. This will take several seconds to complete. The Status indicator will turns solid green, indicating the printer is ready for normal print operations. Sleep Mode — Pressing and releasing the button once will cause the printer to enter Sleep Mode. The printer will turn off after storing various configuration and status information in memory. All the indicators will be off except the Status Indicator will slowly change between On and Off to indicate Sleep Mode. Power OFF with Sleep Mode Delayed — Press and hold the button for 4-9 seconds. You can start a batch print job and put the printer into the low power consumption state of Sleep mode — after the job has finished. Power OFF / Shutdown — Press and hold the button for 4-9 seconds. The printer will turn OFF. Power Failure Recovery Mode — This printer feature is activated by a hardware jumper setting on one of the optional Printer Connectivity Modules installed in the printer. See Setting the Power Failure Recovery Mode Jumper. The printer will automatically Power ON when plugged into an active (ON) AC power source. Supports Sleep Mode and Power OFF with Sleep mode Delayed. A Power OFF / Shutdown will reset the printer and then runs the Initial Power ON sequence. Power Failure Recovery Mode is available ONLY on printers with a printer connectivity module installed.
	2. Status Indicator — Primary status indicator for overall printer health and operational status. Also known as the Power indicator.	Green — Ready for print and data activity. Green, Slowly Changing between ON and OFF — Printer is in Sleep Mode. Red — Media out, media detection error, head (cover/printhead) open, cut error, printhead authentication failure. Amber — Printhead Over Temp (temperature), printhead element failure, out of memory while storing content (formats, graphics, fonts, etc.), and interface power fault for USB Host or serial ports. Blinking Amber — Printhead Under Temp (temperature) Blinking Red — Printhead Over Temp (temperature) . This status is coupled with blinking red Pause indicator. Requires cooling and printer restart.
	3. Pause Indicator — The printer is in Pause mode when the Pause indicator light is on. A label (print form) or all labels (print forms) in the print buffer’s queue can be canceled when the Pause indicator is on using the CANCEL button.	Amber: The printer is paused. Print, label FEED (advance), and other label routines are suspended until the pause state is removed by pressing PAUSE . Blinking Red: Printhead Over Temp (temperature) — this status is coupled with blinking red Status indicator. Requires cooling and printer restart.
	4. Data Indicator — Indicates the status of data transfer activity.	Off — Data is not being transferred. Green — A data communication operation has not finished, but is not actively being transferred. Blinking Green — Data communications are in process. Blinking Amber — Out of memory while storing content (formats, graphics, fonts, etc.).
	5. Supplies Indicator — Indicates media (label, receipt, tags, transfer ribbon, ribbon cartridge, etc.) status.	Red: Media Out condition. Blinking Red: Ribbon out. Blinking Red and Amber: Ribbon Cartridge Low (ZD420 Cartridge printers only). Blinking Amber: Ribbon In (ZD420 Cartridge printers only), detected while the printer is attempting to print in direct thermal mode.
	6. Network Indicator — Indicates network activity and status.	Amber — 10 base Ethernet (LAN) connection detected. Green — 10/100 Ethernet (LAN) connection detected or when Wi-Fi (WLAN) has a strong signal and is connected. Red — when an Ethernet (LAN) or Wi-Fi (WLAN) fault occurs. Blinking Red — during Wi-Fi (WLAN) association. Blinking Amber — during Wi-Fi (WLAN) authentication. Blinking Green — when Wi-Fi (WLAN) has completed, but has a weak signal.
	7. CANCEL Button — Cancels print jobs.	Functional only when the printer is in Pause state. Pressing CANCEL once causes the printer to cancel printing the next format in the print buffer. Pressing and holding CANCEL for two seconds cancels printing of ALL pending formats.
	8. FEED (Advance) Button — Advance a label (print form/format).	Feed One Label — Pressing and releasing FEED when the printer is not printing causes the printer to advance media one blank form/format length (label, receipt, tag, ticket, etc.). Advance Multiple Labels — Pressing and holding FEED when the printer is not printing causes the printer to advance labels until released. It finishes advancing to the beginning position of the next label. Reprint Last Label (activated via a SGD command: ezpl.reprint_mode ) - This feature allows reprinting a failed media print. If the printer runs out of media (paper, labels, transfer ribbon, etc.), it can re-print the last label (print form/format). The print buffer that stores the print image available for reprint is cleared when the printer gets turned off or is reset.
	9. PAUSE Button — Pauses print and media movement actions.	Pressing PAUSE stops print activities and places the printer into a Pause state. The printer completes printing a label that is printing before it pauses. The Pause indicator displays Amber (orange/yellow) to indicate the Pause state. Pressing PAUSE while in Pause state returns the printer to normal operation. If printing a multi-label (form/format) job or another print job is waiting to print in the print queue, the printer will resume printing.