If an OKI MB472, MB492 or MB562 prints but an application reports \u201cScanner not found,\u201d this usually does not mean that the scanning unit is faulty. Printing and scanning use different Windows components. A PCL, PS or XPS driver can provide full printing functionality but does not install the TWAIN and WIA interfaces required for scanning.<\/p>\n
First, test copying directly from the MFP control panel. If the device makes a normal copy from the platen glass and through the ADF, the scanning mechanism is working. In that case, check the scanner driver, selected connection type, WIA service, ActKey, IP address and network port instead of replacing the scanning unit.<\/p>\n
The main difference<\/strong><\/p>\n Scanner Driver adds TWAIN and WIA sources. ActKey starts scanning jobs and installs the Network Configuration utility with it. PCL, PS, XPS and Network Extension are related to printing and printer discovery; reinstalling only these packages will not fix a missing scanner.<\/p>\n<\/div>\n The installation and troubleshooting procedure applies to the following monochrome MFPs:<\/p>\n Scanner source names may use the generic designation MB5(4)x2\/ES5(4)1×2<\/strong> instead of the exact model number. For a network source, the last six characters of the device’s MAC address may also appear in the name.<\/p>\n Open the download page for your model: MB472dnw<\/a>, MB492dn<\/a> or MB562dnw<\/a>. Before downloading, check the model, Windows architecture and package description.<\/p>\n Scanner Driver includes interfaces in Japanese, English, French, German, Italian, Korean, Portuguese, Spanish, Simplified Chinese and Traditional Chinese. ActKey lists Japanese, English, Brazilian Portuguese, French, German, Italian, Korean, Spanish and Traditional Chinese.<\/p>\n Why Scanner Driver may be missing from the Windows 11 results<\/strong><\/p>\n The model page filters downloads by the selected operating system. The older Windows Scanner Driver 1.0.0 officially lists Windows 10 but not Windows 11, so it may not appear when the Windows 11 filter is selected. Switching the filter to Windows 10 (64-bit) will show the package, but installing it on Windows 11 is a compatibility option rather than officially stated support.<\/p>\n<\/div>\n Then determine how scanning is supposed to work:<\/p>\n Do not configure USB and network at the same time. First restore one connection method and use that specific method when selecting the scanning source.<\/p>\n If Scanner Driver has not yet been installed, proceed directly to the next section. If installation previously ended with an error or several non-working sources have appeared in applications, first remove only the scanner components.<\/p>\n If printing works through the same cable but the USB scanner does not appear, still test another short, known-good cable and another computer port. The MFP is a composite USB device: the printer interface may be detected while the scanner interface is not.<\/p>\n If Windows Scan can see the device but a specific application cannot, you do not need to reinstall the printer. The application may support only TWAIN, only WIA, or sources of a particular bitness. Select a different source in the application itself or test scanning in an application with the same bitness. Do not install a 32-bit Windows driver on a 64-bit system just for an old 32-bit application.<\/p>\n If the MFP address changes after the router restarts, create a DHCP reservation for it. Otherwise, printing may continue to work through an automatically updated WSD port while the network scanner remains linked to the old IP address.<\/p>\n The standard Network TWAIN port number for this group is 9967<\/strong>. Do not change it unless necessary. If the port has already been changed on the MFP, the same value must be specified for the network source on the computer.<\/p>\n Do not select the USB source for a network MFP<\/strong><\/p>\n If the list contains both … USB<\/strong> and a source with six characters from the MAC address, use the second option for a network connection. Selecting the USB source results in a message that the data source cannot be opened, even when the network MFP is accessible and prints normally.<\/p>\n<\/div>\n Do not leave the firewall or antivirus disabled. If scanning starts working only during a brief test with protection disabled on a trusted network, turn protection back on and create a specific rule for ActKey, Network Configuration and the required port.<\/p>\n To test the port, open PowerShell and run the following command, replacing the address with your MFP’s IP address:<\/p>\n The value TcpTestSucceeded : True<\/strong> means that the computer can reach the Network TWAIN service on the MFP. If False<\/strong> is displayed, check the IP address, Network TWAIN setting, port, VPN and network-security rules again.<\/p>\n For Windows 11, do not automatically repeat the Windows 10 instructions. The current ActKey 1.12.0 supports Windows 11, but on the support pages for these older models, Windows Scanner Driver 1.0.0 is listed for Windows 10 and Windows 11 is not included.<\/p>\n WSD is suitable for basic scanning through Windows. If an application specifically requires a TWAIN source or you need ActKey, proceed to the next option.<\/p>\n Limitation of this option<\/strong><\/p>\n Installing the Windows 10 driver on Windows 11 may work, but this compatibility is not stated on the model page for Scanner Driver 1.0.0. If the installer reports an unsupported system or is blocked by driver signature verification, do not disable driver signature protection. Use WSD\/WIA or a computer with a supported operating system.<\/p>\n<\/div>\n On Windows 11 ARM and in S mode, the old x64 driver should not be considered suitable. ActKey and working printing through a built-in driver do not guarantee that a traditional TWAIN source will be available.<\/p>\n Having two sources after a network installation can be normal. One is for USB and the other is for the network. You do not need to remove both drivers just because two names are shown.<\/p>\n In this case, Scanner Driver is already working. You need to register the computer with the MFP and make sure ActKey is running.<\/p>\n Computer registration is not required for normal scanning started from an application on the computer. It is required specifically for sending a job from the MFP control panel to the selected computer.<\/p>\n Check the PC Scan mode on the MFP:<\/p>\n If the error appears only in one application, open its source selection and select OKI WIA or the correct TWAIN source again. The message may refer not to the MFP itself, but to a previously selected USB driver when the network connection is actually being used.<\/p>\n In these cases, turn off the MFP using its normal power button, disconnect the power for several minutes, and test copying again. If the hardware error remains, record its exact message or code and provide this information to a service center. Working printing alone does not rule out a fault in a separate interface or the scanning unit.<\/p>\n","protected":false},"excerpt":{"rendered":" If an OKI MB472, MB492 or MB562 prints but an application reports \u201cScanner not found,\u201d this usually does not mean that the scanning unit is faulty. Printing and scanning use different Windows components. A PCL, PS or XPS driver can…<\/p>\nModels covered by this guide<\/h2>\n
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Which files to download<\/h2>\n
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\n \nPackage<\/th>\n What it is used for<\/th>\n What to choose<\/th>\n<\/tr>\n<\/thead>\n \n Scanner Driver 1.0.0, 64-bit<\/strong>, approximately 14.3 MB<\/td>\n TWAIN and WIA; scanning over USB and network<\/td>\n For Windows 10 (64-bit). Windows 11 is not listed for this older driver on the download page.<\/td>\n<\/tr>\n \n Scanner Driver 1.0.0, 32-bit<\/strong>, approximately 14.1 MB<\/td>\n TWAIN and WIA; scanning over USB and network<\/td>\n Only for 32-bit Windows 10. Do not install it on a 64-bit system.<\/td>\n<\/tr>\n \n ActKey 1.12.0<\/strong>, approximately 17.7 MB<\/td>\n Starting scans over USB or network; installs Network Configuration for registering the network MFP and computer<\/td>\n Supports Windows 10 and Windows 11. ActKey does not replace a missing TWAIN\/WIA driver.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Step 1. Make sure the problem is in Windows<\/h2>\n
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Windows 10: restoring scanning over USB<\/h2>\n
Step 2. Check the system architecture<\/h3>\n
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Step 3. Remove an incomplete or incorrect installation<\/h3>\n
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Step 4. Install Scanner Driver and ActKey<\/h3>\n
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Step 5. Check the device and the WIA service<\/h3>\n
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Step 6. Perform a test scan<\/h3>\n
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Windows 10: restoring scanning over the network<\/h2>\n
Step 2. Check the IP address and MFP availability<\/h3>\n
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Step 3. Enable Network TWAIN on the MFP<\/h3>\n
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Step 4. Install and register the network scanner<\/h3>\n
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Step 5. Allow network scanning through the firewall<\/h3>\n
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Test-NetConnection 192.168.1.50 -Port 9967<\/code><\/pre>\nWindows 11: use a separate procedure<\/h2>\n
Option 1. First test WSD\/WIA without the old TWAIN driver<\/h3>\n
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Option 2. Test the older Windows 10 (64-bit) driver<\/h3>\n
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If ActKey cannot find the scanner or selects the wrong source<\/h2>\n
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If scanning from the computer works but Scan to PC from the control panel does not<\/h2>\n
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If TWAIN reports that the device is busy or the source cannot be opened<\/h2>\n
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When reinstalling software will not help<\/h2>\n
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