Re: WinCE 5.0, Unidentified USB Device

Tech-Archive recommends: Fix windows errors by optimizing your registry

Hello Eric,

I got the same problem with the latest HP printers.
Please turn on your debug zones (as I recall it is USBFN) and check what
registry keys are searched for, when you plug in the printer.
In my case it was one key for a standard printer class, which loaded usbprn
correctly.
And then the OS searched for a second key, which was something like
"HKEY_LOCAL_MACHINE\Drivers\USB\LoadClients\1008\Default\255" (1008 is the
vendor ID of HP).
I then wrote a dummy driver for this USB interface and the problem was
solved.

HTH


There are many problems concerning printing under CE.
You mentioned Canon S600 & BJC-2100, I am really interested in whether you
have printer drivers for these printers.
Do you have a download link for these drivers that you are willing to share?

--
Michael Reim
Michael DOT Reim AT helmut-fischer DOT de


"Eric" <sanctum1010@xxxxxxxxx> schrieb im Newsbeitrag
news:eKllEkFQJHA.1448@xxxxxxxxxxxxxxxxxxxxxxx
With the usb class driver support (usbprn.dll) It can recongnize the Canon
S600 & BJC-2100 (got LPTx port), but no luck with the HP Deskjet F4180 or
Epson CX4600, they are all usb printers.

"Paul G. Tobey [eMVP]" <p space tobey no spam AT no instrument no spam DOT
com> wrote in message news:enFslXCQJHA.4760@xxxxxxxxxxxxxxxxxxxxxxx
The debug messages from a DEBUG build of the OS during that phase of
operations should tell you something.

Paul T.

"Eric" <sanctum1010@xxxxxxxxx> wrote in message
news:OWr14RCQJHA.4004@xxxxxxxxxxxxxxxxxxxxxxx
I'm testing with HP deskjet f4180
Even if it's not a PCL printer, the usbprn is a usb class printer
driver
(included in the image), I typed in usbprn on the "Unidentifed USB
Device"
dialog box when the usb printer is pluggin, shouldn't that load the
usbprn
driver and map the usb port to LPTx port? It's not doing that on my
test
environment, is there something I missed.

Thanks,

Eric

"Bruce Eitman [eMVP]" <bruce.eitman.nospam@xxxxxxxxxxxxxxxxxxx> wrote
in
message news:ubDTSi8PJHA.3884@xxxxxxxxxxxxxxxxxxxxxxx
Is your printer a PCL printer?

--
Bruce Eitman (eMVP)
Senior Engineer
Bruce.Eitman AT EuroTech DOT com
My BLOG http://geekswithblogs.net/bruceeitman

EuroTech Inc.
www.EuroTech.com

"Eric" <sanctum1010@xxxxxxxxx> wrote in message
news:ODW2X05PJHA.4432@xxxxxxxxxxxxxxxxxxxxxxx
Hi All,
I'm trying to enable USB printer support on my cepc device.
I've added
- USB Printer Class Driver
- PCL printer driver
to the runtime image in platform builder 5
and also verified that following registry key exists on the device


[HKEY_LOCAL_MACHINE\Drivers\USB\LoadClients\Default\Default\7\Printer_Class]
"DLL"="USBPRN.DLL"
"Prefix"="LPT"
[HKEY_LOCAL_MACHINE\Drivers\USB\ClientDrivers\Printer_Class]
"DLL"="USBPRN.DLL"
"Prefix"="LPT" However, whenever I plugged-in a USB printer, it
always
prompt me the "Unidentified USB Device" dialog box. When I type
UsbPrn
in
the Driver Name field, the same box reappears.This behavior does not
happen
with HID class driver, mouse/keyboard, it recognized
automatically.Did
anyone encountered similar issue and would like to share some
ideasThanks
in
advanceEric













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