dmesg:

printer.c: usblp0: USB Bidirectional printer dev 5 if 0 alt 0 proto 2 vid 0x04B8 pid 0x0001
printer.c: v0.11: USB Printer Device Class driver
ident: nic h/w: id=0x800c 1.0.0
ident: pri f/w: id=0x15 1.0.7
ident: sta f/w: id=0x1f 1.3.6
MFI:SUP:role=0x00:id=0x01:var=0x01:b/t=1/1
CFI:SUP:role=0x00:id=0x02:var=0x02:b/t=1/1
PRI:SUP:role=0x00:id=0x03:var=0x01:b/t=4/4
STA:SUP:role=0x00:id=0x04:var=0x01:b/t=1/9
PRI-CFI:ACT:role=0x01:id=0x02:var=0x02:b/t=1/1
STA-CFI:ACT:role=0x01:id=0x02:var=0x02:b/t=1/1
STA-MFI:ACT:role=0x01:id=0x01:var=0x01:b/t=1/1
Prism2 card SN: 99SA01000000
linkstatus=CONNECTED
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
usb-uhci.c: interrupt, status 3, frame# 1166
scanner.c: read_scanner(0): funky result:-75. Consult Documentation/usb/scanner.txt.
usb.c: USB disconnect on device 00:1d.1-2.2 address 4
hub.c: new USB device 00:1d.1-2.2, assigned address 6
scanner.c: USB scanner device (0x06bd/0x0001) now attached to scanner0
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
hub.c: new USB device 00:1d.1-2.4, assigned address 7
usb.c: USB device 7 (vend/prod 0x4a9/0x306e) is not claimed by any active driver.
usb-uhci.c: interrupt, status 3, frame# 1600
usb-uhci.c: interrupt, status 3, frame# 704
usb-uhci.c: interrupt, status 3, frame# 64
usb-uhci.c: interrupt, status 3, frame# 1600
usb-uhci.c: interrupt, status 3, frame# 1088
usb-uhci.c: interrupt, status 3, frame# 320
usb-uhci.c: interrupt, status 3, frame# 1856
usb-uhci.c: interrupt, status 3, frame# 1728
usb.c: USB disconnect on device 00:1d.1-2.1 address 5
printer.c: usblp0: removed
usb.c: USB disconnect on device 00:1d.1-2.2 address 6
usb.c: USB disconnect on device 00:1d.1-2.4 address 7
hub.c: new USB device 00:1d.1-2.1, assigned address 8
printer.c: usblp0: USB Bidirectional printer dev 8 if 0 alt 0 proto 2 vid 0x04B8 pid 0x0001
hub.c: new USB device 00:1d.1-2.2, assigned address 9
scanner.c: USB scanner device (0x06bd/0x0001) now attached to scanner0
hub.c: new USB device 00:1d.1-2.4, assigned address 10
usb.c: USB device 10 (vend/prod 0x4a9/0x306e) is not claimed by any active driver.
usb-uhci.c: interrupt, status 3, frame# 1472
usb-uhci.c: interrupt, status 3, frame# 192
usb-uhci.c: interrupt, status 3, frame# 1728
usb-uhci.c: interrupt, status 3, frame# 1344
usb-uhci.c: interrupt, status 3, frame# 960
usb-uhci.c: interrupt, status 3, frame# 704
usb-uhci.c: interrupt, status 3, frame# 1728
usb.c: USB disconnect on device 00:1d.1-2.1 address 8
printer.c: usblp0: removed
usb.c: USB disconnect on device 00:1d.1-2.2 address 9
usb.c: USB disconnect on device 00:1d.1-2.4 address 10
hub.c: new USB device 00:1d.1-2.1, assigned address 11
printer.c: usblp0: USB Bidirectional printer dev 11 if 0 alt 0 proto 2 vid 0x04B8 pid 0x0001
hub.c: new USB device 00:1d.1-2.2, assigned address 12
scanner.c: USB scanner device (0x06bd/0x0001) now attached to scanner0
hub.c: usb_hub_port_status (3) failed (err = -84)
hub.c: new USB device 00:1d.1-2.4, assigned address 13
usb.c: USB device 13 (vend/prod 0x4a9/0x306e) is not claimed by any active driver.
usb-uhci.c: interrupt, status 3, frame# 1472
usb-uhci.c: interrupt, status 3, frame# 1344
usb-uhci.c: interrupt, status 3, frame# 192
usb-uhci.c: interrupt, status 3, frame# 1088
usb-uhci.c: interrupt, status 3, frame# 1216
usb-uhci.c: interrupt, status 3, frame# 704
usb-uhci.c: interrupt, status 3, frame# 960
usb-uhci.c: interrupt, status 3, frame# 832
usb-uhci.c: interrupt, status 3, frame# 832
usb.c: USB disconnect on device 00:1d.1-2.1 address 11
printer.c: usblp0: removed
usb.c: USB disconnect on device 00:1d.1-2.2 address 12
usb.c: USB disconnect on device 00:1d.1-2.4 address 13
hub.c: new USB device 00:1d.1-2.1, assigned address 14
printer.c: usblp0: USB Bidirectional printer dev 14 if 0 alt 0 proto 2 vid 0x04B8 pid 0x0001
hub.c: new USB device 00:1d.1-2.2, assigned address 15
scanner.c: USB scanner device (0x06bd/0x0001) now attached to scanner0
hub.c: usb_hub_port_status (3) failed (err = -84)
hub.c: connect-debounce failed, port 4 disabled
usb-uhci.c: interrupt, status 3, frame# 1858
hub.c: usb_hub_port_status (3) failed (err = -84)
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
usb.c: USB disconnect on device 00:1d.1-2.2 address 15
usb-uhci.c: interrupt, status 3, frame# 704
usb-uhci.c: interrupt, status 3, frame# 1984
scanner.c: read_scanner(0): funky result:-84. Consult Documentation/usb/scanner.txt.
hub.c: new USB device 00:1d.1-2.2, assigned address 16
scanner.c: USB scanner device (0x06bd/0x0001) now attached to scanner0
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
mobil:/home/tb#