Epson Tm-T88IV USB Crashing

Hi
We have sold and used RMS for a couple of years, and been selling Epson
TM-T88 receipt printers for even longer. However in the past couple of
months, we have experienced a few sites where their till crashes windows.
On checking the dump files, it refers to TMUSBXP.sys, which is the Epson
OPOS driver file. (dump example at the bottom).
The tills are HP DC7800 SFF with 2GB RAM. The OPOS drivers have been updated
to EPSON OPOS ADK Version2.62E and it still happens.

Every time we think we have identified the cause (PC image, anti virus
software, old OPOS driver) it continues to happen. At the moment, we are
changing the receipt printers back to parallel.

If anyone has experienced something feel free to post up any other
suggestions.
Alternately, if someone knows how to get in contact with Epson to discuss
their drivers, that would be nice to know as well.


Dump file.
1: kd> !analyze -v
*******************************************************************************
*                                                                            
 *
*                        Bugcheck Analysis                                  
 *
*                                                                            
 *
*******************************************************************************
ATTEMPTED_SWITCH_FROM_DPC (b8)
A wait operation, attach process, or yield was attempted from a DPC routine.
This is an illegal operation and the stack track will lead to the offending
code and original DPC routine.
Arguments:
Arg1: 00000000, Original thread which is the cause of the failure
Arg2: 00000000, New thread
Arg3: 00000000, Stack address of the original thread
Arg4: 00000000
Debugging Details:
------------------

CUSTOMER_CRASH_COUNT:  1
DEFAULT_BUCKET_ID:  DRIVER_FAULT
BUGCHECK_STR:  0xB8
PROCESS_NAME:  Idle
LAST_CONTROL_TRANSFER:  from 80545a2b to 804f9ee8
STACK_TEXT:  
ba4d7de4 80545a2b 000000b8 ffffffff 00000202 nt!MmDeleteKernelStack+0x139
ba4d7e3c ba2c16a4 00000000 00000000 00000000
nt!ExpFindAndRemoveTagBigPages+0x49
WARNING: Stack unwind information not available. Following frames may be
wrong.
ba4d7e74 ba2c16ef 89e78ae0 00000001 89cdba58 TMUSBXP+0x96a4
ba4d7e88 ba2bb73f 89e78a28 8a3f02ab 8a3f01f0 TMUSBXP+0x96ef
ba4d7eb0 804f16a2 89e78a28 00000000 00cdba58 TMUSBXP+0x373f
ba4d7ee0 b96b0ee5 8a3f01f0 89a6fef8 8a486028 nt!ObWatchHandles+0x466
ba4d7f48 b96b1b57 89cdba58 00000000 8a4867d8
USBPORT!USBPORT_CompleteTransfer+0x373
ba4d7f78 b96b2754 026e6f44 8a486028 8a4860e0
USBPORT!USBPORT_DoneTransfer+0x137
ba4d7fb0 b96b2ca8 8a486028 806e4427 ba3389c0
USBPORT!USBPORT_FlushDoneTransferList+0x16c
ba4d7fcc 80545c4f 8a48666c 2b667274 00000000
USBPORT!USBPORT_TransferFlushDpc+0x9a
ba4d7fec 00000000 00000000 805457bb b9cf1cc4 nt!ExpSnapShotPoolPages+0x140

STACK_COMMAND:  kb
FOLLOWUP_IP:
TMUSBXP+96a4
ba2c16a4 ??              ???
SYMBOL_STACK_INDEX:  2
SYMBOL_NAME:  TMUSBXP+96a4
FOLLOWUP_NAME:  MachineOwner
MODULE_NAME: TMUSBXP
IMAGE_NAME:  TMUSBXP.SYS
DEBUG_FLR_IMAGE_TIMESTAMP:  4715a31d
FAILURE_BUCKET_ID:  0xB8_TMUSBXP+96a4
BUCKET_ID:  0xB8_TMUSBXP+96a4
Followup: MachineOwner