PrinterTroubleshooting

PrinterTroubleshooting

Troubleshooting

Android App Printer Connection Issues - Permissions

If you find yourself repeatedly receiving permission prompts without actually being asked by Android to grant permissions, please refer to the following guides to verify your permission settings and correct any issues.

Additionally, you can watch instructional videos tailored to your Android device's version.
If the videos aren't resolving your issues, please get in touch with the support.

Android 12 or newer versions


Android 11 or older versions



Can't Connect to Printer (App)

  1. Only one user can connect to a printer at a time. Make sure no other users are connected to the printer. If they are, have them 'Forget the Device' in their Bluetooth Settings.
  2. If an Android device cannot connect, make sure you are not connected to the printer via Bluetooth Settings. manyfastscan is designed to make the connection for you. If you connect in Bluetooth Settings first, the printer will not work.

Printer Connects to Bluetooth and Reconnects (App)

  1. For iOS devices, the common fix for this is updating the firmware - you can download the software, firmware and instructions here
  2. For Android devices, this can be due to either the user walking too far away from the printer, or too much interference in your environment to establish a reliable connection. If this is the case, for Android Devices only, you can directly connect the USB-C port on your device to the Mini-USB plug on the right side of the printer.
  1. You will need a USB-Mini cord like this one here (it's an older USB Cable) https://a.co/d/3DBTKaN

Label is Faded

The printer manufacturer recommends that after 1500 labels printer (about 5 rolls) that the printhead is cleaned. Over time, adhesive from the labels will clog up the print head. If you are experiencing faded labels follow these steps

Clean Printhead
Dirty Printhead



If the printhead is dirty, take an alcohol swab and wipe off the adhesive and dirt stuck to the printhead. Afterwards, the printer will work correctly.

Label is not lining up Correctly

See the instructions for Calibrating the Printer.

Accessory Not Supported Message (iOS)


This is an instructional article to bypass this message.

iPhone's will occasionally go through an update which will cause your QLN220/QLN320 to display the above message.

There are a number of things that can cause this issue, but the update software is the most common. Here are a few steps you want to follow to fix the issue.
  1. Remove the battery from the Printer
  2. on your iPhone go to the Bluetooth settings, forget the connection to the printer.
  3. perform a soft restart on the iPhone/iPad
    1. press the up volume, down volume, then hold the power button until the iPhone/iPad restarts. 
    2. There is a video of this process at the bottom of this article.
  4. Put the battery back in the printer.
  5. Go to your Bluetooth settings on iPhone/iPad, search for the printer and connect to it. 
  6. Go back into manyfastscan and attempt to print a label.
If these steps did not fix the issue, please contact your manyfastscan representative.

Video explaining a restart on an iPhone/iPad is below:

Media Out Error

If you are changing label sizes or changing from bar label to gap, make sure you program the printer accordingly. Make sure to calibrate the new label with the printer.

From repeated use, the label sensors can get dirty. The label sensor is in the middle of the black plastic bar in front of the labels - see photo. If it's dirty (typically paper and glue residue, wipe off with isopropyl alcohol 90% or greater. Sensors being dirty or covered causes the printer to not recognize the media. The sensor on the lid is the Mark Label sensor - make sure that sensor is clean too, otherwise it won't recognize the label type.
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