If you are swapping in a new unit of the same model and want to keep the old one’s saved network and scan-destination settings, export them from Settings › Backup configuration on the old unit before disconnecting it, then restore the file on the new unit during first-run setup. Restoring onto a different model is not supported and the import is rejected.
All current AquaJet and DuraPress wireless variants support 802.11 b/g/n on the 2.4 GHz band only — there is no 5 GHz radio in this generation of hardware. If your router broadcasts a single combined SSID for both bands, create a separate 2.4 GHz-only SSID temporarily and point the wizard at that one.
On every current model, the level shown comes from a counter on the cartridge chip, not a physical sensor reading the actual contents. A refilled or third-party-remanufactured cartridge often has that counter left at whatever level it was at when it was removed, rather than reset to full. This is not a firmware fault and there is no update that changes it; the cartridge needs its counter reset by whoever refilled it, or needs replacing with one that resets it correctly.
Not usually — drivers and firmware version independently. The exception is after a large firmware jump (see the warning on the changelog page about two specific upgrades that need an intermediate build); in that case, update firmware first so the two version numbers reported to the driver stay in a combination it recognises.
Yes for DX-7700, which ships a Windows Server 2019/2022 driver and an optional fleet management agent for exactly that use. DX-3180 and DX-5400 drivers install on server editions of Windows but are only tested and supported for desktop use.
Printed on the rating label under the top cover or behind the front panel, and shown on the control panel under Settings › About. The full catalogue with per-model specifications is on the models page if you want to confirm before downloading.
| Symptom | Likely cause | What to do |
|---|---|---|
| Printer shows online on the network but Windows reports "offline" | Stale IP cached by the driver after a DHCP lease renewal | Remove and re-add the printer in Windows, or assign a DHCP reservation so the IP stops changing |
| Scan-to-email fails after working previously | Stored mail password no longer valid | Re-enter the credential under Settings › Scan › Email on the control panel |
| Duplex pages come out with the second side blank | Heavier paper stock (120–160 gsm) on older firmware | Update to the current firmware for your model; fixed from AquaJet 1.22.14 / DuraPress V58.21 onward |
| Firmware update is rejected immediately with a signature error | Attempting to skip the required intermediate build | Install the intermediate version listed on the changelog page first |
| Finisher (DX-7700) jams on the very first job of the day | Rollers settle during a long idle period overnight | Run Settings › Maintenance › Finisher self-test before the first job; fixed in V60.08 |
Issue not listed here or on a model’s download page? Contact support with the model, current firmware version and a short description.