After updating to macOS Sequoia 15 or macOS Tahoe 26, Canon applications may stop detecting the printer and scanner on the local network. Printing through AirPrint may continue to work, while IJ Scan Utility Lite displays an empty device list,…
IJ Scan Utility Lite Cannot Detect Canon TS9540, TS9550, or TS9550A on macOS: Errors 157, 201, and 202
Canon IJ Scan Utility Lite may stop detecting a Canon TS9500 Series scanner after a macOS update, a router restart, the Mac wakes from sleep, or the network connection changes. When you click Auto, Document, Photo, or Custom, a message…
Mac Can Print but Cannot Detect the Canon TS9540, TS9550, or TS9550A Scanner
A Canon TS9500 Series printer may print normally from a Mac, while the scanning component of the multifunction printer does not appear in macOS. The Open Scanner button is missing from Printers & Scanners, the Image Capture app does not…
Canon TS9540, TS9550, and TS9550A Are Constantly Offline on Mac
A Canon TS9500 Series printer may work normally after installation but switch to offline mode after some time. The macOS print window displays an “Offline” status, jobs remain in the queue, and the computer reports that the printer is not…
Mac Cannot Detect Canon TS9540, TS9550, or TS9550A After a macOS Update
After a macOS update, a Canon TS9500 Series printer may disappear from the device list, remain continuously offline, or stop accepting print jobs. At the same time, the printer itself may be turned on, connected to Wi-Fi, and continue working…
Installing Canon TS9540, TS9550, and TS9550A on macOS via Wi-Fi, Ethernet, and USB
Canon PIXMA TS9540, TS9550, and TS9550A multifunction printers can be connected to a Mac via Wi-Fi, a wired Ethernet network, or USB. In macOS, these devices are detected as the Canon TS9500 series family. A separate Canon driver is usually…
Canon TS9540, TS9550, and TS9551C on Windows 11 ARM: Installation on a Snapdragon Laptop
Canon TS9500 Series printers can be used with Windows 11 ARM laptops and tablets, including devices powered by Qualcomm Snapdragon X Elite, Snapdragon X Plus, and Microsoft SQ processors. However, the installation process differs from that on a standard computer…
Canon TS9540, TS9550, and TS9551C Smear Paper: Ink on the Back, Streaks, and Scratches
A Canon TS9500 Series printer may leave black or colored marks along the edges of a sheet, long ink streaks, repeating marks, or ink on the back of the paper. Sometimes the printed surface is scratched, and smeared areas appear…
Canon TS9540, TS9550, and TS9551C Print Misaligned: Double Text, Uneven Lines, and Shifted Colors
On printouts from Canon TS9500 Series printers, vertical lines may appear stepped or doubled. Letters may have a shadow, colored outlines may be shifted relative to the image, and table lines may not align correctly. In most cases, this problem…
Support Codes 1403, 1405, and B200 on Canon TS9540, TS9550, and TS9551C: Print Head Failure
Support codes 1403 and 1405 on Canon TS9500 Series printers indicate a possible print head failure. The printer stops printing and copying, and the code appears on the touchscreen and in the Canon status window in Windows. Sometimes users also…