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Normal questions for GG-AT 90DW

Print the self-test page

1. Hold down the FEED button, and then turn on the power switch.

2. Press and hold down the FEED key until the indicator blinks purple quickly.

3. The printer automatically corrects the paper and prints the self-test page.


Paper correction operation

1. Hold down the FEED button, and then turn on the power switch.

2. Press and hold down the FEED key until the indicator blinks red quickly.

3. The printer starts to automatically correct the paper, and the paper is finished.


Operation to restore factory Settings

1. Hold down the FEED button, and then turn on the power switch.

2. Press and hold down the FEED key until the indicator blinks blue quickly.

Indicator color cycle mode:

Purple - Blue - Red (flashes 5 times)- Purple (flashes 5 times) - Blue (flashes 5 times) - Blue (fixed)

3. The printer will automatically restore factory Settings (the blue light will turn on after the indicator light is off).


Unable to print

Reason:The PIN in the serial cable in the transmission line slot of the machine is not 1 to 1.

Method:Reconnect the transmission lines. If using a serial port cable,replace the serial port cable with a 1 to 1 PIN in the cable. Please confirm that the transmission rate set in the printer is 9600,n,8,1. If using Ethernet cable.Please confirm that the blue/purple light of Ethernet RJ-45 is on. Please confirm that the purple light blinks when the data is transmitted through Ethernet RJ-45 transmission line. Please confirm that the printer has the IP address when DHCP mode is used. Please wait a few seconds for the printer to contact the server, and then confirm the IP address again.Replace the transmission cable. Clean the print head. The print concentration of the printer is not set correctly. The connection line of the printing head is not properly connected. Please turn off the printer power and reconnect the connection line of the printing head. Please confirm whether the connecting wire of the stepping motor is connected correctly. Please confirm that there is PRINT command in the PRINT program to the file.Last and at the end of each line of instructions must be CRLF.


Setting up printer paper

Set in Print preferences.

Print instability

1.The printer is in Hex Dump mode.Turn the printer back on.Jump out of Hex Dump mode.

2.Serial communication (RS-232)setting is incorrect.Reset the printer to match the baud rate of the computer.


Wrinkle problem

Reason: Print head pressure uneven.Label paper is not installed correctly.Print density is incorrect.Label paper is not feeding correctly .

Method: Please set the appropriate labelto print.Please adjust the label width adjuster.Make it suitable for label width.


Machine bright pink light, diagnostic tool click to identify no content

Generally, there is a problem with the firmware, and the firmware needs to be upgraded (contact relevant personnel to re-issue the firmware).

The printer cannot be automatically added, the computer does not recognize the printer, and the diagnostic tool does not recognize the printer.

Use the tool to identify the interface. If you can identify it, manually add it. If you cannot identify the replaceable interface, try it.

How to set paper size on MAC system

1. Select the file and open the print.

2. In the paper size area, select a user-defined size.

3. Click "+" to create a new paper size, and click "OK" after setting the paper size.

4. After setting, you can set the new paper size in the driver as the default size.

If the paper size cannot be printed as set, replace the PDF software, such as Adobe.


The 90DW WIFI connection is not successful, and printing fails all the time

The computer and the printer must be in the same LAN, that is, the computer and the printer are connected to the same WIFI, and the WIFI signal must be 2.4G.

The resolution of the printed barcode is not very clear. Besides adjusting the print concentration and speed, is there any other method?

In addition to adjusting the print concentration and speed, you can also perform the following operations:

1. Check whether the barcode printer is covered properly. If the pressure is not enough, the printing will not be clear.

2. If the barcode print head is dirty, clean the print head.Clean the print head in one direction with alcohol and cotton. Clean and dry the alcohol before printing.

3. If consumables match incorrectly, printing cannot be scanned. Replace the corresponding consumables to edit and print.


Black label paper with gray lines

1.The print head is dirty.Clean print head.

2.Rubber roller is dirty.Cleaning rubber roller.


The left and right sides of the print content are missing

The label size setting is incorrect.Set the correct label size.

The printing position of the small volume label is incorrect

1.The label sensor is incorrectly set. Calibrate the label sensor.

2.The label size is not set correctly. Set the correct volume label size and volume label gap size.

3.The vertical offset set in the volume label style in the printer driver is incorrect. If you are using the BarTender software, set Vertical Offset in the printer driver.


The RTC time is not accurate after the printer is restarted

The battery is dead. Please check the battery on the mainboard.

Paper skipping occurs when printing

Reason:The label size setting is incorrect or incomplete.Label sensor is covered by foreign matter and detection is incorrect.

Method:Resize and print.Moderately reduce the gap value and print.Clear foreign objects between sensors.


Poor print quality

Reason: Label paper installed incorrect.Dust or adhesive buildup on the printhead.Improper print density setting.Print head is damaged.

Method: Reinstalling supplies.Cleaning the print head.Cleaning rubber roller.Adjust printer print density and printing speed.Print out the self-test value, check the judgment the print head is damaged. If the print head is damaged,please return to the factory to replace the print head.Replace the appropriate label paper.If the thickness of the label exceeds 0.22mm may cause deterioration in print quality.Make sure the printhead mount is fully closed.Adjust the print head pressure adjustment button.If the printed label is too light on the left side, please adjust the value of the pressure adjustment button on the left side. If the value is already "5" and the print on the left side is still too light, please change the value of the pressure adjustment button back to "1" and then adjust the Z-axis regulator to find the best pressure setting. If the label printed on the right side is too light, adjust and increase the value of the pressure adjustment button on the right side to improve the printing quality.


"Paper Jam" is displayed in the printer Diagnostic Tool.

1. Gap/black mark sensor sensitivity is not set properly (sensor sensitivity is not enough). Calibrate the gap/black mark sensor.

2.Make sure label size is set properly.Set label size exactly as installed paper in the labeling software program. 

3.Labels may be stuck inside the printer mechanism near the sensor area. Remove the stuck label.


The printer Diagnostic Tool displays "Paper Used Up".

1. If the labels are used up, install a new label.

2. The volume label installation path is incorrect. Reinstall the volume label.

3. If the gap/black label sensor is incorrect, readjust the label sensor.


The Printer Diagnostic Tool displays "Printer On".

Print head holder is not closed, please close the print head holder.

The power indicator is off

1. The AC power socket plug and the power supply plug are not properly connected to the printer socket. Check the power connector and verify that the AC socket and power supply plug are properly connected to the printer.

2. The printer power switch is not turned on. Turn on the power switch.


Calibrate paper sensors with printer diagnostic tools

1. Ensure that the paper is installed correctly, the print head is closed, and the paper passes through the paper gap sensor.

2. Power on the printer.

3. Enable the Diagnostic Tool and set the transmission port (the default value is USB).

4. Press the Sensor Calibration key.

5. Select the type of paper and press the "Correct" key. Then the printer will automatically feed the paper to correct the sensor.


LED Color Description

Blue/ Solid : This illuminates that the power is on and the device isready to use.

Blue/ Flash : This illuminates that the system is downloading datafrom PC to memory and the printer is paused.

Purple : This illuminates that the system is clearing data fromprinter.

Red / Solid : This illuminates printer head open.

Red/ Flash : This illuminates a printing error, such as head open,paper empty, paper jam, or memory error etc.


Print speed setting

Set in Print preferences.

Image printing Settings

Set in Print preferences.

Printing direction setting

Set in Print preferences.

Print concentration setting

Set in Print preferences.

Print offset adjustment Settings

Set in Print preferences.

Paper size scale setting

Set in Print preferences.

Paper Style setting

Set in Print preferences.

Print Mode setting

Set in Print preferences.

View printer Bluetooth information

Print the self-check page. If you have used the printed self-check page to check the Bluetooth information, if there is no relevant Bluetooth information in the self-check page, it indicates that the machine has no Bluetooth function.

Bluetooth name and password change

Log on to Ninestar's website https://label.ggimage.com/ ,The driver downloads the diagnostic tool, decompresses it and opens it.Connect the computer to the printer. Click on the upper right to read (the machine is normally connected and displays green standby). Click Read in the lower left corner to read the printer information. Click the BT/WIFI item in the interface to see the Bluetooth related information. Modify the Bluetooth name and password. Click the setting button below and wait for the printer to restart automatically. Click Read again to view Bluetooth information and confirm that the modification is complete.

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