Ошибка 21345 сканера на mac - Решение и исправление самых разных ошибок на TopOshibok.ru

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Common problems HP Solution Center not working : Adobe Flash Player Error and Unable to scan

‎04-09-2020

02:11 PM

— last edited on

‎09-26-2021

11:43 PM

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Chao_L

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Product: Envy 7640

Operating System: macOS 10.15 Catalina

using the latest MacOS 10.15.4, over a wifi network, the error occurs using scan link in printer control and HP Easy Scan and Image Capture. Printing works but can not connect to the scanner.

1 ACCEPTED SOLUTION

‎04-15-2020

01:00 AM

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Had the same issue. This worked for me (from Apple Support Community — https://discussions.apple.com/thread/2535764

Try a reset of the printing system.

How to Reset the Printing System

1. Open System Preferences > Print & Fax
2. Move your mouse over the Printers list
3. Hold down the Control button and click the mouse (or right click if supported).
4. Click «Reset printing system …»
5. Restart your Mac

This will remove your printer and scanner queues but not your drivers. So you will only need to add your printer and scanner queues again.

7 REPLIES 7

Jay_G24

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‎04-14-2020

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Hi @JoeSkelley

Welcome to the HP Support Community. I’d be happy to assist you with the «Scan error» issue.

Let’s try a power reset on the printer-

Reset the product

With the printer turned on, disconnect the power cord from the rear of the printer.

Unplug the power cord from the wall outlet.

Wait at least 60 seconds.

Plug the power cord back into the wall outlet.

Reconnect the power cord to the printer.

Turn the printer on. HP recommends plugging the printer directly into a wall outlet.

Try and scan, if the issue persists try the below steps.

try updating the printer’s firmware — HP Printers — Updating or Upgrading Printer Firmware

Update mac-How to update the software on your Mac

Hope this helps! Keep me posted.

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

Click the “Kudos, Thumbs Up» on the bottom right to say “Thanks” for helping!

Have a great day!

1 person found this reply helpful

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‎04-15-2020

01:00 AM

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Had the same issue. This worked for me (from Apple Support Community — https://discussions.apple.com/thread/2535764

Try a reset of the printing system.

How to Reset the Printing System

1. Open System Preferences > Print & Fax
2. Move your mouse over the Printers list
3. Hold down the Control button and click the mouse (or right click if supported).
4. Click «Reset printing system …»
5. Restart your Mac

This will remove your printer and scanner queues but not your drivers. So you will only need to add your printer and scanner queues again.

‎04-17-2020

01:58 AM

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Hi, thanks for this, though I tried and it did not work. I ended up having to rest the printing system altogether and reboot my Mac. Appreciate the help, though!

1 person found this reply helpful

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‎04-17-2020

01:59 AM

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This worked like a charm. Thank you!

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‎04-17-2020

06:49 AM

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Glad I could help.

I think you marked the wrong post as a solution.

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‎04-17-2020

07:32 AM

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Likely. I couldn’t see the correct answer to mark it.

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‎05-14-2020

11:20 PM

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The solution that worked for me was to disable IPv6 on the printer’s web interface. On my Office Jet Pro 7740 that meant opening the web interface, selecting Network, General, Network protocols. Then deselect — Enable IPv4 and IPv6. Then select Enable IPv4 only.

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Out of the blue, Image Scanner is no longer working. The error message says «Failed to open a connection to the device (-21345)»

I have a Mac, wirelessly connected to a HP8600 printer. Using Catalina operating system.

Tried unplugging printer, printer power cable, and then replugging everything after several minutes. No luck.

iMac 21.5″,

macOS 10.13

Posted on Oct 23, 2020 3:57 AM

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Posted on Oct 23, 2020 10:59 AM

Similar questions

failed to open a connection to the scanner (-21345)
OS 11.6 on MacBook Air 13 inch. HP OfficeJet Pro 8035 (Bonjour Secure Airprint). I was fine on Oct. 1 (Friday), but I noticed a request to make changes to print settings. Today (Oct. 4), I CANNOT open the scanner with Image Capture, PDF Scanner or the new Scan button on Printer (System Preferences, Printers & Scanners, Scan button).
I get the error «failed to open a connection to the scanner (-21345)».
Deleting and reinstalling the Printer driver does not fix the problem. My Mac is up to date. Any recommendations?

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scanner does not work after update Catalina 10.15.5
Hello,
After the installation of Catalina 10.15.5, my scanner (Printer Canon PIXMA TS6050 on LAN) does not work. I have this message: Failed to open a connection to the device (-21345).
I reset the printer system, reboot the Mac and reinstall the printer but nothing better; I still have the same message.
Thanks for your help

1478
5

5 replies

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Helpful

Nov 16, 2020 8:34 AM in response to shspw

while other posts suggest the solution is resetting the printer system under system preferences this was not a complete working solution for me. As a second step i needed to go to my printers websetup page (usually the printers IP adress) and deactivate IPv6 completely. only after deactivating and then resetting the printer system in macOS i was able to regain access to my scanner completely.

hope this helps!

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Oct 23, 2020 10:37 AM in response to shspw

I have this also.

I have deleted the printer, re-added the printer, rebooted, unplugged printer multiple times. When adding the printer back not adds the printer and fax only, no scanner. The printer prints fine. The scanner is no longer visible to hp scan, preview or image capture.

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Helpful

Oct 24, 2020 2:28 AM in response to shspw

I have exactly the same problem with an HP Officejet 6500A. I have tried everything and nothing work. This problem starts on October 23rd out of blue !!!!

What could I do ?

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Helpful

Nov 18, 2020 9:33 AM in response to shspw

I was able to solve this problem by adding my scanner’s software to the list of allowed software connections under the Security & Privacy, Firewall, Firewall Options setting page. Once you have the Firewall Options screen open, click the plus sign and then locate your scanner’s software. In my specific case, Epson Scan 2 was the application I needed to add to restore my Mac’s connection to my Epson scanner. FWW, my Epson scanner is directly connected via a USB cable. This solution also worked for my wireless Canon printer/scanner as well.

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Oct 25, 2020 6:07 AM in response to Robert_France

I have got my HP scanner working! Obtain you HP printer’s IP address from network settings page in the printer and type this into your web browser. This opens the HP Embedded Web Server for your printer. Open the Scan tab. Load your document and press Start Scan button. Your scanner should now scan. To save the scanned image press the image preview button in the dark grey line near the bottom of the image. This will open Mac Preview and allow you to save the document to your Mac. Hope this works for you.

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Oct 23, 2020 10:37 AM in response to shspw

I have this also.

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Oct 23, 2020 5:44 PM in response to Old Toad

I have tried all the measures in that support article. The scanner is still invisible. But thanks for trying Old Toad. When I figure it out I will post my solution. It is still a «Failed to open a connection to the device (-21345)» issue whatever that means?

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Helpful

Oct 24, 2020 2:28 AM in response to shspw

I have exactly the same problem with an HP Officejet 6500A. I have tried everything and nothing work. This problem starts on October 23rd out of blue !!!!

What could I do ?

Oct 25, 2020 4:41 AM in response to Robert_France

I also have the same problem but with an HP Photosmart Premium printer. The scanner worked fine on 23rd October but failed to work on 24th October. The printer works fine. still trying to find a solution.

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Helpful

Oct 25, 2020 6:07 AM in response to Robert_France

Oct 25, 2020 7:54 AM in response to DJB444

Yes it works that way but this is a lot less convenient…

Oct 25, 2020 10:00 AM in response to rocketchris

If all else fails or the other workarounds are a bit clumsy give the demo version of VueScan a try. Even though my Canon software works as does Image Capture I use VueScan exclusively as it is much more powerful than the other. You can run it in demo mode to see if it’s what you might want.

Oct 26, 2020 8:08 AM in response to Robert_France

Now resolved the issue. Removed my HP printer from Printers & scanners. Reset the NVRAM by shutting down my mac, then turned back on again immediately holding these four keys together: Option, Command, P and R. You can release the keys after about 20 seconds. Having done that I downloaded the latest drivers for my printer from HP.com and then added my printer back to the Mac. The printer AND scanner now works as it did before.

Oct 27, 2020 2:36 AM in response to DJB444

I’s working again and I didn’t do anything. Weird !!!

Oct 31, 2020 12:49 PM in response to DJB444

THANK YOU so much DJB444! I did this with the 3 computers I have affected and all is as it was before, worked perfect! The last 2 computers I didn’t download the drivers from HP, the AirPrint drivers worked fine. Thank you so much, hope your holidays are great this year! Stay safe!

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Nov 16, 2020 8:34 AM in response to shspw

hope this helps!

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Nov 18, 2020 9:33 AM in response to shspw

Failed to open a connection to the device (-21345)

Источник

If you experience one of the following errors when scanning across a network on macOS:

Failed to open a connection to the device (-21345)

Failed to open a connection to the device (-21355)

Disabling IPv6 from the printer’s control panel may resolve this issue.

Depending on your model, this will be found under LAN settings —> Common settings —> TCP/IP settings —> IPv6

Device settings —> LAN settings —> Wi-Fi —> Manual setup —> TCP/IP settings —> IPv6

Device settings —> LAN settings —> Wi-Fi —> Settings —> Advanced —> TCP/IP settings —> IPv6

Printer Support Home

Источник

Вы можете получить эту ошибку, когда попытаетесь использовать свой сканер из Image Capture, Preview, или в настройках «Принтеры и сканеры».

При попытке подключиться к вашему сканеру и начать сканирование вы можете получить сообщение о том, что у вас нет разрешения на открытие приложения, за которым следует имя вашего драйвера сканера. В сообщении говорится, что следует обратиться за помощью к вашему компьютеру или сетевому администратору, или указано, что вашему Mac не удалось установить соединение с устройством (-21345). Выполните следующие действия, чтобы решить проблему:

Закройте все открытые приложения.
В строке меню Finder выберите «Перейти»> «Перейти в папку».
Тип /Library/Image Capture/Devices, затем нажмите Return.
В открывшемся окне дважды щелкните приложение, указанное в сообщении об ошибке. Это имя вашего драйвера сканера. При открытии ничего не должно происходить.
Закройте окно и откройте приложение, которое вы использовали для сканирования. Новое сканирование должно пройти нормально. Если позже вы решите сканировать из другого приложения и получите ту же ошибку, повторите эти шаги.

Ожидается, что эта проблема будет решена в будущем обновлении программного обеспечения.

Дата публикации: 13 августа 2021

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HP Community
Printers
Scanning, Faxing, and Copying
«Failed to open a connection to the device (-21345)» Scannin…

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Common problems HP Solution Center not working : Adobe Flash Player Error and Unable to scan

‎04-09-2020

02:11 PM

— last edited on

‎09-26-2021

11:43 PM

by

Chao_L

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Product: Envy 7640

Operating System: macOS 10.15 Catalina

using the latest MacOS 10.15.4, over a wifi network, the error occurs using scan link in printer control and HP Easy Scan and Image Capture. Printing works but can not connect to the scanner.

1 ACCEPTED SOLUTION

‎04-15-2020

01:00 AM

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Had the same issue. This worked for me (from Apple Support Community — https://discussions.apple.com/thread/2535764

Try a reset of the printing system.

How to Reset the Printing System

1. Open System Preferences > Print & Fax
2. Move your mouse over the Printers list
3. Hold down the Control button and click the mouse (or right click if supported).
4. Click «Reset printing system …»
5. Restart your Mac

This will remove your printer and scanner queues but not your drivers. So you will only need to add your printer and scanner queues again.

7 REPLIES 7

Jay_G24

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‎04-14-2020

09:13 AM

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Hi @JoeSkelley

Welcome to the HP Support Community. I’d be happy to assist you with the «Scan error» issue.

Let’s try a power reset on the printer-

Reset the product

With the printer turned on, disconnect the power cord from the rear of the printer.

Unplug the power cord from the wall outlet.

Wait at least 60 seconds.

Plug the power cord back into the wall outlet.

Reconnect the power cord to the printer.

Turn the printer on. HP recommends plugging the printer directly into a wall outlet.

Try and scan, if the issue persists try the below steps.

try updating the printer’s firmware — HP Printers — Updating or Upgrading Printer Firmware

Update mac-How to update the software on your Mac

Hope this helps! Keep me posted.

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

Click the “Kudos, Thumbs Up» on the bottom right to say “Thanks” for helping!

Have a great day!

1 person found this reply helpful

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‎04-15-2020

01:00 AM

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Had the same issue. This worked for me (from Apple Support Community — https://discussions.apple.com/thread/2535764

Try a reset of the printing system.

How to Reset the Printing System

1. Open System Preferences > Print & Fax
2. Move your mouse over the Printers list
3. Hold down the Control button and click the mouse (or right click if supported).
4. Click «Reset printing system …»
5. Restart your Mac

This will remove your printer and scanner queues but not your drivers. So you will only need to add your printer and scanner queues again.

‎04-17-2020

01:58 AM

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Hi, thanks for this, though I tried and it did not work. I ended up having to rest the printing system altogether and reboot my Mac. Appreciate the help, though!

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‎04-17-2020

01:59 AM

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This worked like a charm. Thank you!

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‎04-17-2020

06:49 AM

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Glad I could help.

I think you marked the wrong post as a solution.

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‎04-17-2020

07:32 AM

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Likely. I couldn’t see the correct answer to mark it.

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‎05-14-2020

11:20 PM

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The solution that worked for me was to disable IPv6 on the printer’s web interface. On my Office Jet Pro 7740 that meant opening the web interface, selecting Network, General, Network protocols. Then deselect — Enable IPv4 and IPv6. Then select Enable IPv4 only.

17 people found this reply helpful

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HP Community
Printers
Scanning, Faxing, and Copying
«Failed to open a connection to the device (-21345)» Scannin…

Create an account on the HP Community to personalize your profile and ask a question

Your account also allows you to connect with HP support faster, access a personal dashboard to manage all of your devices in one place, view warranty information, case status and more.

Common problems HP Solution Center not working : Adobe Flash Player Error and Unable to scan

‎04-09-2020

02:11 PM

— last edited on

‎09-26-2021

11:43 PM

by

Chao_L

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Product: Envy 7640

Operating System: macOS 10.15 Catalina

using the latest MacOS 10.15.4, over a wifi network, the error occurs using scan link in printer control and HP Easy Scan and Image Capture. Printing works but can not connect to the scanner.

1 ACCEPTED SOLUTION

‎04-15-2020

01:00 AM

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Had the same issue. This worked for me (from Apple Support Community — https://discussions.apple.com/thread/2535764

Try a reset of the printing system.

How to Reset the Printing System

1. Open System Preferences > Print & Fax
2. Move your mouse over the Printers list
3. Hold down the Control button and click the mouse (or right click if supported).
4. Click «Reset printing system …»
5. Restart your Mac

This will remove your printer and scanner queues but not your drivers. So you will only need to add your printer and scanner queues again.

7 REPLIES 7

Jay_G24

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HP Support Agent

‎04-14-2020

09:13 AM

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Hi @JoeSkelley

Welcome to the HP Support Community. I’d be happy to assist you with the «Scan error» issue.

Let’s try a power reset on the printer-

Reset the product

With the printer turned on, disconnect the power cord from the rear of the printer.

Unplug the power cord from the wall outlet.

Wait at least 60 seconds.

Plug the power cord back into the wall outlet.

Reconnect the power cord to the printer.

Turn the printer on. HP recommends plugging the printer directly into a wall outlet.

Try and scan, if the issue persists try the below steps.

try updating the printer’s firmware — HP Printers — Updating or Upgrading Printer Firmware

Update mac-How to update the software on your Mac

Hope this helps! Keep me posted.

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

Click the “Kudos, Thumbs Up» on the bottom right to say “Thanks” for helping!

Have a great day!

1 person found this reply helpful

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‎04-15-2020

01:00 AM

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Had the same issue. This worked for me (from Apple Support Community — https://discussions.apple.com/thread/2535764

Try a reset of the printing system.

How to Reset the Printing System

1. Open System Preferences > Print & Fax
2. Move your mouse over the Printers list
3. Hold down the Control button and click the mouse (or right click if supported).
4. Click «Reset printing system …»
5. Restart your Mac

This will remove your printer and scanner queues but not your drivers. So you will only need to add your printer and scanner queues again.

‎04-17-2020

01:58 AM

HP Recommended

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Hi, thanks for this, though I tried and it did not work. I ended up having to rest the printing system altogether and reboot my Mac. Appreciate the help, though!

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‎04-17-2020

01:59 AM

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This worked like a charm. Thank you!

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‎04-17-2020

06:49 AM

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Glad I could help.

I think you marked the wrong post as a solution.

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‎04-17-2020

07:32 AM

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Likely. I couldn’t see the correct answer to mark it.

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‎05-14-2020

11:20 PM

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The solution that worked for me was to disable IPv6 on the printer’s web interface. On my Office Jet Pro 7740 that meant opening the web interface, selecting Network, General, Network protocols. Then deselect — Enable IPv4 and IPv6. Then select Enable IPv4 only.

17 people found this reply helpful

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Looks like no one’s replied in a while. To start the conversation again, simply

ask a new question.

Out of the blue, Image Scanner is no longer working. The error message says «Failed to open a connection to the device (-21345)»

I have a Mac, wirelessly connected to a HP8600 printer. Using Catalina operating system.

Tried unplugging printer, printer power cable, and then replugging everything after several minutes. No luck.

iMac 21.5″,

macOS 10.13

Posted on Oct 23, 2020 3:57 AM

Question marked as

Apple recommended

Posted on Oct 23, 2020 10:59 AM

Create an account on the HP Community to personalize your profile and ask a question

Your account also allows you to connect with HP support faster, access a personal dashboard to manage all of your devices in one place, view warranty information, case status and more.

Common problems HP Solution Center not working : Adobe Flash Player Error and Unable to scan

‎10-26-2020

04:31 PM

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Product: HP Color LaserJet Pro MFP M180nw

Operating System: macOS 10.15 Catalina

The scanner on my printer suddenly stopped working. It’s definitely a software issue because my printer is working just fine. I finally figured some of the problem out and was able to get HP Easy Scan (which would previously not allow me to open it) to at least scan a document, but the Preview scan doesn’t show. I also no longer have the HP Scanner icon in my Dock which is how I used to tell my scanner to start a scan. When I try to install HP Easy Scan so that it shows up in my dock, it doesn’t do anything. So in order to scan, I have to go to System Preferences, Printers & Scanners, then click on Scan, then click on Open Scanner. I need a shortcut like I used to have!! Why is my HP Easy Scan not installing??

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Kumar0307

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‎10-31-2020

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@bethlipp

Make sure your printer is on and connected to your Mac with a USB cable or local wireless network.

Open Finder , select Applications, and then look for HP Easy Scan.

If HP Easy Scan displays in the list, open it. On the upper bar, click HP Easy Scan, and then click Check for Updates. Download any available updates, and then reopen the app.

Update HP Easy Scan: Open HP Easy Scan. On the upper bar, click HP Easy Scan, click Check for Updates, and then install any available updates.

If HP Easy Scan does not display, download and install the HP Easy Scan app from the App Store, and then open the app.

Let me know how this goes.

KUMAR0307
I am an HP Employee

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‎10-29-2020

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@bethlipp, Welcome to the HP Support Community!

Let us try these steps to resolve this issue:

Update the printer firmware

Click here to know different methods of updating printer firmware.

Also, check for any software updates on MAC

Click the Apple icon > About This Mac > Software Update and install any available update.

Re-install the printer using Airprint driver

1.) Click the Apple menu, click System Preferences, and then click Print & Scan or Printers & Scanners.

2.) Check if your printer name displays in the Printers list, If your printer is listed, click the printer name, click the minus sign to delete the printer.

3.) If you see multiple printer queues for the same printer, remove all extra printers by selecting them one at a time, and then clicking the minus button at the bottom of the list.

4.) Click the plus sign, click Add Printer or Scanner, click the printer name.

5.) Click the Use or Print Using menu, select AirPrint in the pop-up menu. Then click Add.

Note: Use Bonjour multifucntion.

6.) Try to print and scan.

Use one of the 3 methods shown in this document to scan from your MAC — How to scan

To create a shortcut on the dock:

Open System Preferences

Select the «Printers & Scanners» control panel

Select the Scanner that you want to create the shortcut for

Once the scanning window opens, right-click on the Scanner’s application icon on the right side of your dock, and select «option/keep on dock»

Next time you want to open the scanner, just click on its docked icon

Hope this helps! Keep me posted.

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

Click the “Kudos, Thumbs Up» on the bottom right to say “Thanks” for helping!

Have a great day!

KUMAR0307
I am an HP Employee

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‎10-30-2020

02:28 PM

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Thanks for your help! I was able to try AGAIN to reinstall the printer firmware (I had done that recently, but did it again), as well as software updates for my MAC. I also installed ReadIrisPro which I was finally able to figure out and it is installed. So now I can use my scanner, but I can’t get a scanner shortcut on my dock. Previously, I used HP Easy Scan and there was a nice shortcut in my dock to go straight to scanning. But I’ve tried and tried to install HP Easy Scan. I don’t know HOW it was uninstalled, something with software changes in my last printer firmware update because that’s the point when my scanner quit working. When I click on GET (HP Easy Scan) in the Apple Store, and then click INSTALL, it waits a few seconds then goes back to GET. It never installs it. So whatever upgraded firmware was installed on the printer is not compatible with HP Easy Scan. Yes, I can still scan, but I have to go to System Preferences, then Printers/Scanners, then I have to click on «OPEN SCANNER» just to scan. That’s a pain. If there’s a solution to enable HP Easy Scan, I would love to know it!

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Kumar0307

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‎10-31-2020

06:01 AM

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@bethlipp

Make sure your printer is on and connected to your Mac with a USB cable or local wireless network.

Open Finder , select Applications, and then look for HP Easy Scan.

If HP Easy Scan displays in the list, open it. On the upper bar, click HP Easy Scan, and then click Check for Updates. Download any available updates, and then reopen the app.

Update HP Easy Scan: Open HP Easy Scan. On the upper bar, click HP Easy Scan, click Check for Updates, and then install any available updates.

If HP Easy Scan does not display, download and install the HP Easy Scan app from the App Store, and then open the app.

Let me know how this goes.

KUMAR0307
I am an HP Employee

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‎11-04-2020

09:21 AM

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Thank you, Kumar0307, for your help! My scanner is finally back to working great!

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Kumar0307

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‎11-05-2020

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@bethlipp

Glad to know that the issue is now resolved. Feel free to contact us with any concerns related to HP products.

Happy to help!

KUMAR0307
I am an HP Employee

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‎11-30-2020

10:18 PM

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@kumar0307 … I tried the solution you provided but it did not work. I had the issues listed below and hoped your solution would be the help I needed. I initially had the HP Easy Scan but it would not open. I deleted it. Then reinstalled via App Store. Once installed, I still get the same error messages as before. Also, when I try to locate/select the ‘Check for Updates…’ option it is not there.

My OfficeJet 6970 printer seems to be working, however I still cannot get my scanner to work. I get pop-up errors like the ‘Failed to open a connection to the device -21345″ as well as «HP Scanner 3 will damage your computer» and «The application ‘HP Scanner 3’ can’t be opened 9» and «Scanner reported an error/Failed to open a connection to the device» and «‘HP Scanner 3’ will damage your computer/This file was downloaded on an unknown date».

Are you able to assist?

[I really don’t want to buy another printer all-in-one (especially an HP one due to potentially running into same issue)].

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‎12-02-2020

08:26 AM

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@kumar0307 … I tried the solution you provided but it did not work. I had the issues listed below and hoped your solution would be the help I needed. I initially had the HP Easy Scan but it would not open. I deleted it. Then reinstalled via App Store. Once installed, I still get the same error messages as before. Also, when I try to locate/select the ‘Check for Updates…’ option it is not there.

My OfficeJet 6970 printer seems to be working, however I still cannot get my scanner to work. I get pop-up errors like the ‘Failed to open a connection to the device -21345″ as well as «HP Scanner 3 will damage your computer» and «The application ‘HP Scanner 3’ can’t be opened 9» and «Scanner reported an error/Failed to open a connection to the device» and «‘HP Scanner 3’ will damage your computer/This file was downloaded on an unknown date».

Are you able to assist?

[I really don’t want to buy another printer all-in-one (especially an HP one due to potentially running into same issue)].

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HP Community
Printers
Scanning, Faxing, and Copying
Re: «Failed to open a connection to the device (-21345)»

Create an account on the HP Community to personalize your profile and ask a question

Your account also allows you to connect with HP support faster, access a personal dashboard to manage all of your devices in one place, view warranty information, case status and more.

Common problems HP Solution Center not working : Adobe Flash Player Error and Unable to scan

Закройте все открытые приложения.
В строке меню Finder выберите «Перейти»> «Перейти в папку».
Тип /Library/Image Capture/Devices, затем нажмите Return.
В открывшемся окне дважды щелкните приложение, указанное в сообщении об ошибке. Это имя вашего драйвера сканера. При открытии ничего не должно происходить.
Закройте окно и откройте приложение, которое вы использовали для сканирования. Новое сканирование должно пройти нормально. Если позже вы решите сканировать из другого приложения и получите ту же ошибку, повторите эти шаги.

Ожидается, что эта проблема будет решена в будущем обновлении программного обеспечения.

Дата публикации: 13 августа 2021

Question :

I have have just upgraded to a new MacBook Air M1 2020 (with an Apple M1 processor) running macOS 11.0 Big_Sur. Now, I am trying to get my Canon PIXMA MG3250 All-in-one printer-scanner to work with it… but even though I can get the printer function to work, when I want it to scan I get an error…

Installing the Canon MG3250 through System Preferecens > Printers & Scanners > Add Printer was really simple as it was immediately seen through Bonjour. After installing, the MG3250’s icon is listed on the left, and when I click it, the window opens where I can choose either the “Print” or the “Scan” tab. After choosing the later, I get the “Open scanner”-button, and when I click that, the built-in macOS scanner-app opens the “Scanner” window… which gives this error : “Failed to open a connection to the device (-121345)” each time I try. I just can’t get it to work.

What is wrong ?

Answer :

When you get this error in this setup, you will probably have gotten an error saying “IJScanner3” also. Do this to fix it :

goto the Canon UK website : https://www.canon.co.uk
there, browse to the PIXMA MG3250’s Driver Support-page or go there directly using this link : https://www.canon.co.uk/support/consumer_products/products/fax__multifunctionals/inkjet/pixma_mg_series/pixma_mg3250.html?type=drivers&language=en&os=macos%2010.15%20(catalina)
- Yes, that’s right, even though you are running macOS 11.0 Big_Sur and Canon tells you there is no driver for such an advanced OS, the macOS 10.15 Catalina driver still works
when you see the ICA Driver Ver. 4.0.0a (Mac) version listed, click the blue download button to download
in your downloads folder, you will now find a file called miss-mac-ijscanner3-4_0_0-ea19_2.dmg
click that file and it will mount an installer called Canon IJScanner3_040000.pkg
click that file and the 2020-version of the scanner driver will be installed
when done, make sure the System Preferences are closed
then open System Preferences > Printers & Scanners > MG3250 again and click the “Open Scanner”-button
now, the built-in scanner-app will open the Scanner-window again, but hits time without the error… so you are good to go !

That’s it !

enjoy 😉

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