Tech Support
Local Repair
Reviews & Ratings

Join | Answer Questions | Sign In

Help me with
Search
Home | Canon | CanoScan D646U Flatbed Scanner | It says the twain is not...
Canon CanoScan D646U Flatbed Scanner
Problem for Canon CanoScan D646U Flatbed Scanner

It says the twain is not connected




By nrg_capri on Aug 24, 2009

" "
it says the twain is not connected
Ads by Google

Solution #1

posted on Aug 24, 2009
Somewhat Helpful)

karantechguy
karantechguy

Rank: Wiz 
Rating: 80%, 44 votes
check your usb cable is working fine .
Also check USB port on cpu works fine.
try all usb ports 1 by 1.
If stil same issue then uninstall driver then reinstall driver.
Let me know if you havent driver setup source.
Was this helpful?
Yes
No

Popular Solutions for Canon CanoScan D646U Flatbed


CanoScan D646U Flatbed Scanner
Canon CanoScan D646U Flatbed Scanner
i misplaced my canoscan D646U ex CD. how...
i misplaced my canoscan D646U ex CD. how can i download the content
2 Solutions

CanoScan D646U Flatbed Scanner
Canon CanoScan D646U Flatbed Scanner
I need the Windows Vista's driver for my...
I need the Windows Vista's driver for my scanner Canon D646U. Does it exist or is not...
2 Solutions

CanoScan D646U Flatbed Scanner
Canon CanoScan D646U Flatbed Scanner
I have a cannon scanner type d646ex-u, so I...
I have a cannon scanner type d646ex-u, so I search drivers for vista or windows xp2
3 Solutions

CanoScan D646U Flatbed Scanner
Canon CanoScan D646U Flatbed Scanner
I want to install my Canoscan D646U on my...
I want to install my Canoscan D646U on my Mac laptop (OS X). Is this possible? If so,...
1 Solution

CanoScan D646U Flatbed Scanner
Canon CanoScan D646U Flatbed Scanner
canoscan d646u ex scanner does not install...
canoscan d646u ex scanner does not install in xp
1 Solution

Questions and Unsolved Problems for Canon CanoScan D646U Flatbed


Do you recommend Canon CanoScan D646U Flatbed Scanner?
Answer

Canon CanoScan D646U Flatbed Scanner
Canon CanoScan D646U Flatbed Scanner

problem:dialog box release the lock...

Answer
what does release the lock switch and detach the usb cable and reconnect ?

Canon CanoScan D646U Flatbed Scanner
Canon CanoScan D646U Flatbed Scanner

where can i get the drivers for a...

Answer
where can i get the drivers for a canoscan d646u ex to load onto my windows vista 64bit system

Canon CanoScan D646U Flatbed Scanner
Canon CanoScan D646U Flatbed Scanner

not able to install canon u646

Answer
actully in using windows 7 & not able to install canon u646 ex please help me how can or... (More)

Canon CanoScan D646U Flatbed Scanner
Canon CanoScan D646U Flatbed Scanner

I have a CanoScan D646Uex. It worked...

Answer
I have a CanoScan D646Uex. It worked just fin on my old (5 yr old) Dell. I have a new Dell running... (More)

Canon CanoScan D646U Flatbed Scanner
Canon CanoScan D646U Flatbed Scanner

Vista not supporting CanoScan D646U...

Answer
I have the driver cd for Windows XP which was originally given with the Scanner but now i upgraded... (More)


Didn't find what you were looking for?

Describe your Scanners problem:


Ads by Google



Ask our Experts

Ask

 

Solve Your Problem Now!
Chat Live with an Expert
Chat Now
Top Scanner Experts
smartr10U
Rank:
Guru
Computer Hardware
Expert

Rating:
87%, 604 votes


bschilz
Rank:
Guru
Computer Hardware
Expert

Rating:
87%, 688 votes


komguy
Rank:
Guru
Computer Hardware
Expert

Rating:
90%, 1399 votes


Find more Scanner Experts
Top Printer Repairmen
in Newport, KY
Laser Repair 911
(800) 836-9287
Celebrating 14 Years Of Outstanding Printer Repair...
Laser Repair 911

Elite Printer Services...
(918) 583-5483
Elite printer Services, Inc. is a full service HP...
Elite Printer Services

See More
Get Listed!

       
Solve Your Problem Now!
Chat Live with an Expert
Chat Now

Insert Link
Insert Image
Insert You-Tube clip
Insert List
Insert List
Spell Check

What is this?



Select