Check all wiring harnesses connecting the power supply unit (PSU) to the main controller to ensure no connections have vibrated loose. 5. Replace the Main Controller Board or Flash ROM
: Launch the SST application on your technician PC. Click Register Firmware , navigate to your local firmware directory, select your specific imageRUNNER variant, and click Search followed by Register .
If you have attempted to flash the firmware via the SST and the operation fails consistently—or if the copier drops right back into "Download Standby" despite successful firmware writes—the has suffered a hardware failure. canon ir2016 download standby error verified
Once fixed, you can avoid a repeat:
without reconnecting the USB or network cables. Check all wiring harnesses connecting the power supply
Wait exactly 5 to 10 minutes to allow the capacitors on the main logic board to discharge completely.
| Step | Action | Result | | :--- | :--- | :--- | | 1 | | Error persisted. | | 2 | Connection Check | Internal cables to HDD were reseated. No change observed. | | 3 | Service Mode Access | Attempted to enter Service Mode (Additional Functions + 2 + 8 + Additional Functions). Failed. The device is stuck in the boot loop and does not register key inputs. | | 4 | Hard Drive Listen Test | Physical inspection suggests the drive is not spinning or is making clicking noises (indicates mechanical failure). | Click Register Firmware , navigate to your local
Unlike typical paper jams or toner errors, "Download Standby" is not a hardware failure. It is a . In simple terms, the printer is telling you: "I am ready to receive new firmware or system software, but I am not ready to function as a normal copier/printer."
The "Download Standby" error on a Canon iR2016 is a critical state where the device's control system is waiting for a firmware upload to function. This typically occurs when the firmware has become corrupted, the Boot ROM is faulty, or a previous update attempt was interrupted. Common Causes of "Download Standby"