Windows Printer Error 0x0000007a
What it means
"The data area passed to a system call is too small", seen when connecting to a shared printer. Despite the wording, this is not about the size of anything you sent. It is another of the shared printer connection failures, alongside 0x0000011b, 0x0000057 and 0x0000007c, and the cause and the cure are the same. The two computers disagree about how the driver is delivered, usually because an update landed on one side and not the other. Nothing on the printer changed and nothing you did caused it. Install the driver locally, then connect by local port rather than by browsing to the share. Get the driver from the manufacturer's support page and install it on your machine. Then Add printer, the printer I want is not listed, Add a local printer or network printer with manual settings, Create a new port, choose Local Port, and enter the share path as the port name, in the form \\COMPUTERNAME\PrinterShareName. Select your installed driver when prompted. It is worth checking one simpler thing first, because it produces the same code and takes a moment: the computer sharing the printer has to be awake and on the network. A machine that has gone to sleep gives an error about the connection rather than about being asleep, and no amount of reconfiguring your side will help while it is.
Guides that cover this kind of fault
A guide written for 0x0000007a itself is still being checked against the manufacturer's documentation. These cover the same underlying problem and are filed under wifi & network.
- Brother Printer Not Connecting to WiFi: Troubleshooting GuideTo fix a Brother printer not connecting to Wi-Fi, verify your router uses a 2.4GHz band and reconfigure the wireless settings using the printer...
- Epson Printer Not Connecting to WiFi: Setup and FixesReconnect your Epson printer to Wi-Fi by restarting your router and using the control panel to re-enter your network credentials. Ensure your router...
- Canon Printer Not Connecting to WiFi: Setup and FixesTo fix a Canon printer not connecting to Wi-Fi, restart both your router and printer, then ensure you are using a 2.4GHz network. If the connection...
Common questions
What does the 0x0000007a error mean on a printer?
"The data area passed to a system call is too small", seen when connecting to a shared printer. Despite the wording, this is not about the size of anything you sent. It is another of the shared printer connection failures, alongside 0x0000011b, 0x0000057 and 0x0000007c, and the cause and the cure are the same. The two computers disagree about how the driver is delivered, usually because an update landed on one side and not the other. Nothing on the printer changed and nothing you did caused it. Install the driver locally, then connect by local port rather than by browsing to the share. Get the driver from the manufacturer's support page and install it on your machine. Then Add printer, the printer I want is not listed, Add a local printer or network printer with manual settings, Create a new port, choose Local Port, and enter the share path as the port name, in the form \\COMPUTERNAME\PrinterShareName. Select your installed driver when prompted. It is worth checking one simpler thing first, because it produces the same code and takes a moment: the computer sharing the printer has to be awake and on the network. A machine that has gone to sleep gives an error about the connection rather than about being asleep, and no amount of reconfiguring your side will help while it is.
Is the 0x0000007a error serious?
It is worth attention but not alarm. Switching the printer off, unplugging it for a minute and checking for anything physically in the way resolves a large share of cases before anything else is needed.
Different code or problem?
Switch off and unplug a printer before reaching inside it. If a fault involves the power supply or internal electronics, or the machine is under warranty, contact the manufacturer or a qualified technician. Full disclaimer. Brand and code names are trademarks of their owners; PrinterFixUp is independent and unaffiliated.