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- Printing Errors or Lights & Stuck Print Jobs
- Re: connect cash drawer to LaserJet printer

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07-12-2020 05:22 PM
Hello!
I was wondering if it's possible to connect a cash drawer to laser jet printer.I just need a to open the drawer just as if i have a receipt printer.
07-12-2020 05:59 PM
HP does make POS systems, not sure if they make any interface for the Pro series like the M477. Some of their enterprise models have a a foreign interface connector that allows connection of devices but I am not aware of anything for the M477. You might want to make contact with their retail POS division https://www8.hp.com/ca/en/campaigns/retail-solutions/point-of-sale.html
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.
07-12-2020 08:06 PM
The issue is the POS software i have works on windows only and it doesn't support cash drawer or receipt printer, i'm forced to use a regular printer to print a big receipt and those printers won't support a cash drawer. I'm looking for an alternative option to open it via PC electronically and i have two options. First option is to buy a converter from RJ12 to USB and the second option is if my current printer have an option to open it when i print like a regular receipt printer.
07-13-2020 02:59 AM
The signal that opens a cash driver is 12 V impulse sent from the POS device to the cash drawer solenoid that releases lock and drawer opens.
You will hardly get a command from a laserjet M477 to generate that voltage on USB then convert it to RJ to open a cash drawer.