1d90:2037 CL-S631 Barcode Printer

Citizen

Vendor ID
1d90
Product ID
2037
Combined
1d90:2037
Decimal
7568:8247

What is this device?

This is the USB identifier for a CL-S631 Barcode Printer manufactured by Citizen. The vendor ID 1d90 is registered to Citizen with the USB Implementers Forum, and 2037 is the product ID that Citizen assigned to this particular model. When you run lsusb on Linux, this device appears as 1d90:2037 Citizen CL-S631 Barcode Printer.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 1d90:2037 Citizen CL-S631 Barcode Printer

You can filter directly with lsusb -d 1d90:2037, or get the full descriptor dump with lsusb -v -d 1d90:2037. Kernel messages from dmesg show the same pair as idVendor=1d90, idProduct=2037.

Windows

In Device Manager, open the device, go to Details → Hardware Ids. This device reports:

USB\VID_1D90&PID_2037
USB\VID_1D90&PID_2037&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_1D90&PID_2037"

macOS

$ system_profiler SPUSBDataType
    CL-S631 Barcode Printer:
      Product ID: 0x2037
      Vendor ID: 0x1d90  (Citizen)

Driver help

Having driver issues with this device? Most USB devices are handled by a generic class driver; if yours shows up as an unknown device, confirm the ID above first, then check the manufacturer's downloads page.

Raw usb.ids entry

The exact lines this page is generated from, in the upstream source file:

1d90  Citizen
	2037  CL-S631 Barcode Printer

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