Samsung CLX-9350ND Service Manual page 445

● Code :
S1-4311
● Symptom / Cause :
Communication error between Engine board and Vide
Hardware defect , Signal quality problem between PC
● Troubleshooting method :
1. Check if the cable between printer and PC is conne
2. Check if the PC is working properly. Reboot the PC
3. Check if the copier is working properly. Reboot the
4. Select the following menu . ( My Computer  Hardw
Controller ) Can you see "USB Printing Support" ?
Yes :
A. Check the 'USB Printing support' .
B. When the cable is unplugged, USB printing
When the cable is reconnected, USB print
No :
A. Can you see : Universal Host controller / O
B. Check the operation for another USB devic
C. Check that USB in BIOS menu is enabled.
5. Check if the OS driver is installed correctly. 5 Ch k if th OS d i
Yes : Re-install the latest driver after checking the f
No : Install the latest driver.
6. Is there a Hub between Printer and PC?
Yes :
A. Connect the cable directly without Hub.
B. Connect the cable to another port of the Hub
C. Connect another USB device to the Hub por
D. Remove all cables from the Hub and connec
Check if it is working correctly.
E. If Hub power is not supplied, connect the po
7. Is using the USB extension cable or 5M cable? 7 I i th USB
Yes : Connect the 2M cable to PC and Printer.
8. Is the USB cable connected to front port of PC?
Yes : Connect the cable to rear port of PC.
(To be continued next page.) (
Service Manual
CLX-9250/9350 series
7. Troubles
● Error message :
Video System Failur
p gg
i i t ll d tl
y
t i bl 5M
p g )
shooting
:
re #S1-4311 : Turn off then on.
eo board.
and Printer , USB port defect.
ected properly. Reconnect the cable.
C.
copier.
ware  Device Manager  Universal Serial Bus
p g g support disappears? g pp pp
ting support appears?
Open host controller / Enhanced Host controller?
ce.
firmware version.
b.
rt and check if it is working correctly.
ct the printer cable only.
wer cord to the Hub.
bl ?
7-1 05
SAMSUNG ELECTRONICS