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Question: Cannon LBP 2900B stop working after 10.13.4 update

Hello,

My old printer Cannon LBP 2900B stop working after mac os update 10.13.4. I could print a document and then appear a box saying CAPT needs update and contact your suppliers. I can't find any update and need help. I have tried the answers for previous os. Thanks.

MacBook Air, iOS 11.3, 10.13.4

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Apr 22, 2018 2:27 PM in response to pholone23 In response to pholone23

Hi ​pholone23,

Welcome to Apple Support Communities. I understand that since updating macOS High Sierra, you're seeing an error after printing a document. I know it's important to use a printer with your Mac; I'd like to help. I'd recommend that you start by trying any steps below that you haven't already, and testing your printer after each:

If your printer is AirPrint-enabled

If your printer is AirPrint-enabled for printing from your Mac or iOS device, just make sure that it's connected to the same Wi-Fi network used by the Mac or iOS device.1

If you still can't print, try any of these solutions:

  • Restart your Wi-Fi router. Then restart your printer.
  • Move your printer closer to your Wi-Fi router.
  • Update your printer and Wi-Fi router with the latest firmware from the manufacturer.2
  • Update the software for your Mac or iOS device.

If you're using a Mac and you still can't print, it might help to reset the printing system. Otherwise, contact the printer manufacturer for support.

User uploaded fileUser uploaded file

If your printer isn't AirPrint-enabled

If you're printing from your Mac to a printer that isn't AirPrint-enabled:

  1. If your printer is connected to your Mac with a cable, disconnect the cable from your Mac.
  2. Turn off your printer.
  3. Get software updates for your Mac. Your Mac automatically downloads the latest software for most printers as part of these updates, so it's best not to install software from the printer manufacturer.
  4. Reconnect your printer to your Mac, if applicable.
  5. Turn on your printer and wait for it to finish starting up.
  6. Choose Apple () menu > System Preferences, then click Printers & Scanners.
  7. Select your printer in the list of devices.

If your printer doesn't appear in the list of devices in Printers & Scanners preferences, click User uploaded fileUser uploaded file at the bottom of the list, then choose the command to add a printer or scanner. The window that opens offers more ways to find and add a printer, such as by IP address:

User uploaded fileUser uploaded file

If you still can't print, and your printer is connected via Wi-Fi:

  • Restart your Wi-Fi router. Then restart your printer.
  • Move your printer closer to your Wi-Fi router.
  • Update your printer and Wi-Fi router with the latest firmware from the manufacturer.2

Reset the printing system

If the issue continues, reset the printing system on your Mac. This removes all printers and scanners—including their print jobs and settings—from Printers & Scanners preferences.

  1. Choose Apple menu > System Preferences, then click Printers & Scanners.
  2. While holding down the Control key on your keyboard, click anywhere in the list of devices.
  3. Choose “Reset printing system” from the menu that appears:

User uploaded fileUser uploaded file

Remove printer drivers

If the issue continues on your Mac after resetting the printing system, take these final steps to remove any currently installed printer drivers. These steps don't apply to AirPrint printers.

  1. From the menu bar in the Finder, choose Go > Go to Folder. Type
    /Library/Printers/
    and click Go.
  2. The Printers folder opens. Choose Edit > Select All, which selects all items in the Printers folder.
  3. Choose File > New Folder with Selection, which puts all of the selected items into a new folder named New Folder With Items. To save storage space, you can delete this folder.

If the issue continues, contact the printer manufacturer for support

If you can‘t print from your Mac or iOS device



Best Regards.

Apr 22, 2018 2:27 PM

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Question: Cannon LBP 2900B stop working after 10.13.4 update