HP Wide-Format Printer Troubleshooting
HP DesignJet T/Z Error 64:YZ – Input/Output problem through the USB Port
Input/Output problem through the USB Port.
Applicable models
T510T520T610T620T1100T1120T120T1200T1300T770T790T920 +19 more
What error 64:YZ means
Error 64:YZ on HP DesignJet T/Z indicates Input/Output problem through the USB Port. The source places this code in the USB / External Disk area.
Start here
What you can check first
- Switch the Power OFF from the back of the Printer and disconnect the Power cord.
- Reconnect the power cord and power ON the Printer.
- Check that the USB cable is correctly connected to the Printer.
- Check that the Printer has the latest Firmware version.
When to call for service
If the error comes back
If error 64:YZ remains after the customer-level checks above, the supplied source directs the user to service or support. Send LCR the exact code and printer model so the service request can be triaged with the error information attached.
When you contact LCR, include the exact error code, printer model, what happened immediately before the error, and whether it returns after a restart.