---
name: "ulpt"
section: "4freebsd"
platform: "linux"
package: "freebsd-manpages"
version: "12.2-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/ulpt/4freebsd"
---

# ulpt(4freebsd)

USB printer support

## NAME

**ulpt** – USB printer support

## SYNOPSIS

To compile this driver into the kernel, place the following line in your kernel configuration file:

**device ulpt**

Alternatively, to load the driver as a module at boot time, place the following line in [loader.conf(5)](/loader.conf/5.md):

```
ulpt_load="YES"
```

## DESCRIPTION

The **ulpt** driver provides support for USB printers that follow the printer bi- or uni-directional protocol. The bits in the minor number select various features of the driver.

| | |
| --- | --- |
| *Minor Bit* | *Function* |
| 64 | Do not initialize (reset) the device on the port. |

Some printers cannot handle the reset on open; in case of problems try the *unlpt* device.

## HARDWARE

The **ulpt** driver provides support for USB printers and parallel printer conversion cables, including the following:

- ATen parallel printer adapter

- Belkin F5U002 parallel printer adapter

- Canon BJ F850, S600

- Canon LBP-1310, 350

- Entrega USB-to-parallel printer adapter

- Hewlett-Packard HP Deskjet 3420 (P/N: C8947A #ABJ)

- Oki Data MICROLINE ML660PS

- Seiko Epson PM-900C, 880C, 820C, 730C

## FILES

- */dev/ulpt?*

  device with reset

- */dev/unlpt?*

  device without reset

## SEE ALSO

[lpt(4)](/lpt/4.md), [usb(4)](/usb/4.md)

## HISTORY

The **ulpt** driver appeared in NetBSD 1.4. This manual page was adopted from NetBSD by Tom Rhodes ⟨*trhodes@FreeBSD.org*⟩ in April 2002.