If you are using the cash register system on a Mac (MacBook, iMac, Mac Pro) in combination with the mPOP cash drawer-receipt printer combination, you can check here how to solve any problems.
Prerequisites Checklist
Is the device properly connected to the computer via USB cable?
Check that the USB cable is connected to the correct port on the mPOP drawer:
Only a single blue light should be illuminated on the mPOP device
- If yes: Everything is fine here
- If no light is on: Is the mPOP device plugged in?
- If a red light is on: Is the receipt drawer properly closed? Is the paper empty or not inserted correctly?
Tip: The receipt drawer can be opened by pressing against it.
Is there a stable internet connection?
- Test: Please open a website that hasn't been opened in a long time.
- If the page does not load (or loads very slowly): Check internet connection.
Restart Satellite
- Right click on Satellite icon > Exit
- Restart Satellite
Printer is available
- Is the mPOP cash register listed in the Mac's printer settings and available?
- To do this, click on the small magnifying glass (top right in the menu bar) and search for "Printers & Scanners".
- Open System Preferences from the suggestion list and check the list of installed printers.
Possible Problems and Solutions:
Red light on the mPOP cash register is lit: Is the receipt roll empty?
- Is the receipt roll inserted correctly?
- Is the paper empty?
- Solution: Insert a full receipt roll correctly and close the receipt drawer properly.
Tip: The receipt drawer can be opened by pressing against it.
Error message during checkout: "Printer not available"
- The mPOP cash register is probably being accessed simultaneously by another device. It can only be used either on the computer or via iPad.
Chinese characters are displayed on the receipt
Umlauts or images are not printed correctly
Receipt is not cut off
- Log in to the Office and open or activate the "Printer Connection" module in Settings
- In the "Printer Type" module check (if something other than mPOP is selected, correct it)
- Deactivate the module again
Cash drawer does not open
- Log in to the Office and open or activate the "Printer Connection" module in Settings
- In the "Printer Type" module check (if something other than mPOP is selected, correct it)
- Deactivate the module again
Cash drawer opens, but receipt is not printed
- Log in to the Office and open or activate the "Printer Connection" module in Settings
In the "Printer Type" module check (if something other than mPOP is selected, correct it)
- Deactivate the module again
Test the printer again. If problems persist:
- Under Settings > Cash Register > Receipt Design > Receipt Structure check if anything is entered.
- If yes: Cut text and save locally (for example in a Word document)
- Save completely empty receipt structure field
- Test printing again and correct receipt structure outside of operating hours.
- The "Open Cash Drawer" button in the checkout process does not work
- Log in to the Office, open the "Printer Connection" module in Settings and activate the checkbox "Offer Open Cash Drawer button in Dashboard".
- Printing sometimes does not work or only works the second time
- After prolonged inactivity, your browser may have activated power saving mode. This can be disabled.
- For Chrome, you can find this setting here: Chrome Browser Settings -> Performance -> Disable Memory Saver Mode
Is the printer paused?
In that case, it needs to be resumed in the Mac's print queue.
