![]() ![]() A band-aid fix: To set the printer to "Ignore RFU messages", use the following steps. Click below for ordering information and installation instructions.Ĭlick here to order a LaserJet 4240N, 4250N, or 4350N series formatter.ģ. ![]() Fortunately, replacing the formatter is very easy to do on these models. The simplest step would be to replace the formatter assembly itself, which is the main logic board in these HP LaserJet printers. If the update fails, resending the firmware update through a different port may help sometimes it doesn't help at all. Depending on the printer, there are 2 or 3 ports available to send a firmware upgrade, so choose from parallel port, USB port, or network port/FTP. To upgrade the firmware, first download a firmware file and the ReadMe help file from HP's Web site. If you're not familiar with this process, you may want to skip to the next step, which is simply replacing the formatter assembly (see below). If you're going to attempt a firmware upgrade, you should be experienced with computers and familiar with entering commands via a command-line DOS prompt. So we recommend you avoid firmware updates unless an experienced printer tech advises you that it is absolutely necessary.Īgain, we're not big advocates for sending firmware updates, but sometimes resending a fresh firmware update will clear these messages. It's rare that firmware updates actually solve problems, and during the update, the file transfer can actually fail which leaves you with error messages like this. If you see error messages like this - "RFU Load Error" or "Resend RFU" - it means there is something wrong with the firmware, and usually refers to the fact that a firmware update was not successful.Īs a side note, in general we don't see much value in firmware updates and we recommend end users do not perform firmware updates unless absolutely necessary. RFU Load Error Resend RFU message on HP LaserJet 4240 4250 4350Īn RFU file is a Remote Firmware Update file. ![]()
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