I have a HP Laserjet 1300 (USB 1.x) on a USB1.1 Controller. 
With kernel 2.6.25.18 everything works great. All kernels before worked great. 

With kernel 2.6.26.4 and 2.6.27.4 i have a strange behavior, that the printer is not always found by "the kernel".

First everything is fine: After a fresh restart of the machine and turning on the printer -> dmesg shows
  usb 1-1: new full speed USB device using ohci_hcd and address 3
  usb 1-1: configuration #1 chosen from 1 choice
  usblp0: USB Bidirectional printer dev 3 if 0 alt 1 proto 2 vid 0x03F0 pid 0x1017
That is fine and lsusb shows my "Hewlett-Packard". 

Now i turn off the printer and wait an hour and put the printer on again. Than dmesg will never show me finding the usb-printer. I already changed the cable with a brand new one. 

My OHCI-USB-Controller is onboard:
00:01.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 07) (prog-if 10 [OHCI])
	Subsystem: Silicon Integrated Systems [SiS] USB 1.1 Controller
	Flags: bus master, medium devsel, latency 64, IRQ 11
	Memory at cfffc000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci_hcd

I put OHCI in all my kernels (not a module). 

Summary:
(kernel 2.5.25.18 + [SiS] USB 1.1 + HP Laserjet 1300) works perfekt. 
(kernel 2.5.27.4 + [SiS] USB 1.1 + HP Laserjet 1300) works at the beginning. 

Other testing:
The printer perfectly works on an other Linux Box with USB 2.0. 
The USB-cable is brand new.
I tried an other USB1.x pci card with silicon image chipset. that find the printer always, but printing do not work. 

Mario, this bug is not for comments, if you have problems, please open a new bug.

This is a "tracking" bug only.

All USB bugs should be sent to the linux-usb@vger.kernel.org mailing 
list, and not entered into bugzilla.