Firmware is the internal software that controls how a printer operates. On an Epson WF-3733, a firmware change can affect startup behavior, cartridge recognition, ink-level reporting, and communication between the printer and its installed cartridges.
The video examines a situation in which an Epson printer works normally before a firmware update but later reports that previously usable cartridges are no longer recognized. It also discusses several broad responses to this type of firmware-related problem, including manufacturer support, firmware rollback, and an alternative firmware configuration commonly described as “chipless.”
Understanding these concepts can help printer owners determine whether a machine that appears unusable may still have useful life remaining.
What Can Change After an Epson Firmware Update?
A firmware update changes software stored inside the printer itself. Unlike a normal printer driver update on a computer, printer firmware can affect how the machine identifies hardware and consumable components.
The example shown in the video focuses on cartridge recognition. After the firmware changes, cartridges that previously worked may no longer be accepted by the printer.
That does not necessarily mean the cartridges or the entire printer have physically failed. The issue may instead involve how the new firmware communicates with cartridge identification information.
For someone trying to keep an existing printer in use, distinguishing a firmware-related compatibility problem from a mechanical failure can be important.
Epson WF-3733 Cartridge Not Recognized After an Update
The Epson WF-3733 is used in the video to demonstrate the firmware issue.
The printer can reach a point where it again requests cartridges even though it had previously been operating with a different firmware configuration. This illustrates how firmware and cartridge recognition are connected.
Messages such as “cartridge not recognized,” “cartridge not installed,” or similar cartridge errors may therefore appear after a firmware change even when the printer’s mechanical components have not changed.
The important educational point is that a cartridge-recognition problem following a firmware change should be viewed differently from a paper-feed, printhead, or mechanical problem.
Manufacturer Support as One Possible Response
The video identifies contacting Epson as one possible response when a printer develops problems following a firmware update.
Manufacturer support can help determine whether the printer is operating with the expected firmware and whether the cartridge-recognition behavior is associated with a supported configuration.
This is distinct from changing firmware independently. Manufacturer assistance follows the printer maker’s supported software and cartridge environment.
What Is a Firmware Rollback?
Another concept discussed in the video is firmware rollback.
A rollback means replacing a newer firmware version with an earlier one. The purpose is to return the printer to software that previously behaved differently with the printer’s cartridge system.
The video notes that older firmware versions may not always be readily available. It also demonstrates that changing firmware requires the printer to communicate in a special firmware-update state rather than operating as it normally would during printing.
For educational purposes, the main point is that firmware rollback changes the software version stored in the printer. It does not physically repair cartridges, the printhead, or other mechanical components.
Firmware Update Mode
The video demonstrates the Epson WF-3733 entering a special program-update state.
This mode is different from normal printer operation. It allows firmware information to be transferred to the printer even when normal printing functions are unavailable or when a different firmware version needs to be installed.
The video also shows that entering this mode may require more than one attempt before the printer displays the expected update screen.
This distinction helps explain why an ordinary restart and a firmware recovery process are not the same thing.
What Does “Chipless” Mean?
The video also discusses a firmware configuration commonly called chipless.
Normally, an Epson cartridge system uses information associated with cartridge chips to identify cartridges and report ink status. The chipless configuration shown in the video changes how the printer handles that information.
After the change demonstrated in the video, the printer reports its ink levels as full even when cartridges are not installed.
That behavior is important to understand because it changes the relationship between the physical amount of ink and the ink level displayed by the printer.
A displayed full level should therefore not automatically be interpreted as a measurement of the actual ink remaining.
Ink-Level Monitoring After a Firmware Change
Ink monitoring is one of the most important differences highlighted in the video.
Under the configuration demonstrated, the printer continuously reports full ink levels. This means the printer’s display is no longer being used in the conventional way to indicate the amount of ink available.
From a reuse and maintenance perspective, this demonstrates why understanding the printer’s software state matters. A printer can operate differently even though its physical ink system has not changed.
Software information and the actual condition of a printer are not always the same thing.
Automatic Firmware Updates
The video also emphasizes automatic firmware updating.
A printer that has been configured with a particular firmware version can behave differently if another computer later allows newer Epson firmware to be installed.
The example shows that after a later update, the printer can return to requesting cartridges again.
This illustrates that firmware management involves not only the printer but also computers connected to it. Software installed on those computers may participate in checking for or applying firmware updates.
The video therefore discusses disabling automatic updating in several software locations so that an existing firmware configuration is not unintentionally replaced.
Why Multiple Computers Matter
One useful point from the video is that firmware-update preferences may matter on every computer that communicates with the printer.
A printer can be shared among several computers. If one computer is configured differently from the others, it may interact with Epson’s update software in a way the printer owner did not expect.
This is an important general lesson in device management: printer behavior can be influenced by both the software inside the printer and the software installed on connected computers.
What Happens If the Firmware Changes Again?
The video demonstrates a situation where a previously changed printer receives newer Epson firmware and begins requesting cartridges again.
In that example, the printer is returned to the earlier firmware configuration and then reactivated using information that had previously been saved.
This reinforces an important distinction. The physical printer may remain functional even though its cartridge behavior changes when its firmware changes.
Understanding that relationship may prevent a usable printer from being discarded simply because its software configuration has changed.
Firmware Problems and Printer Reuse
Firmware-related failures can make a printer appear unusable even when many of its physical components are still working.
For organizations and individuals interested in reducing electronic waste, understanding whether a problem is mechanical, electrical, cartridge-related, or firmware-related can support more informed decisions about whether equipment can continue to be used.
The Epson WF-3733 example demonstrates that printer operation depends on more than the visible hardware. Firmware, cartridge recognition, update settings, and connected computers can all influence how the printer behaves.
Learning about these relationships supports the Reduce Refill Recycle mission by helping people better understand existing equipment before replacing or discarding it.
Supporting Longer Printer Life Through Education
Printers contain electronics, mechanical assemblies, software, and consumable-management systems that work together. When one part of that system changes, the symptoms do not always indicate that the entire device has failed.
Educational resources that explain firmware behavior can help users recognize the difference between a printer that is physically damaged and one whose software configuration has changed.
Better understanding can support repair awareness, responsible reuse, and reduced electronic waste.
