HP Original Cartridges

CC364A HP 64A Black Toner Cartridge for HP P4014/P4015/P4515
£151.26 ( US - price excl. VAT, but we only ship to the UK )

Availability: In stock •

CC364X HP 64X High Capacity Black Toner Cartridge for HP P4015/P4515
£306.90 ( US - price excl. VAT, but we only ship to the UK )

Availability: In stock •

Reliable Remanufactured Cartridges

One of the merits of the P4014 against a new printer is the low cost of good re-manufactured cartridges.

At the moment we don't sell in the US, but we hope to soon

Error Message 50.9 for HP P4014, P4015 & P4515 Printers.

Laser printer fusers adhere toner powder to a page using a combination of heat and pressure. Printers in the LaserJet P4014 series have a fuser using a foil sleeve to convey heat to the page. Error 50.9 suggests part of the fuser became too hot, this could be thick media changing the heat distribution. It could also be a failed fan, bad ventillation, bad power supply or wrong settings. The fuser may not be to blame.
Other fuser errors are:50.1 50.2 50.3 50.4 50.5 50.6 50.7 50.8

50.9: Fuser Error.

50.9 Fuser Error - High Fuser Temperature but from the secondary thermistor.

Secondary thermistors are used to assess the distribution of heat across a sleeve based fuser. Thermal distribution is simple if a fuser uses an aluminium heated roller - the conductivity of the metal will allow one thermal sensor (thermistor) to do the job. The powerful heater and thin sleeve of an "instant-on" fuser behave differently, especially with unusual shaped media are in use. For instance if the printer is working on envelopes or postcards then the edges of the fuser may well get too hot. That is the kind of thing "50.9" seems designed to detect.

Printertechs say this error can be caused by substituting an M600 series fuser (RM1-8395) in the P4014.If that is so HP have reintroduced the issue with the LaserJet 4200 / 4300 / 4250 /4300 where there was an issue with users getting confused about precisely what printer they had, ordering fusers that would physically fit but then getting 50.5 Fuser Error meaning "wrong fuser". Furthermore the P4014 doesn't actually give the right error message. When they devised the P4014 firmware they wouldn't know they were going to introduce a similar series with a wrong fuser that would fit. (Perhaps the M600 series do give 50.5 when you try a P4014 fuser in them).

However if the fuser is not wrong

This is one of those messages that may clear up if the printer is allowed to cool down. Turn the printer off off and leave it for 20 minutes.

Error 50 generally points to the need for a new fuser. For ordering details see above.

Web Research

I tried querying Google with P4015 "50.9 FUSER ERROR" in quotes and got a suggestion of About 13,300 results; once more implying a popular topic.

HP forum Question and answer re 50.9 Fuser Error. The response is from the service manual and says check J82 on the DC controller, then replace the High Voltage PCB. HP persist in calling the board that; it does a lot more than high voltage, including fuser control.
printertechs article on the M600 fuser causing 50.9 in the P4014 series, mentioned above.
printertechs with another article on 50.9 errors in the CLJ-3600 series printers. Try powering off and reseating, but don't expect it to print for long without a new fuser.
helpowl just a generic index - no idea why Google thought it important.
fixya A couple of vendors simply advising people to buy a new fuser - it may prove the answer but 50.9 is one of those debatable errors so that isn't very helpful.
fixyourownprinter thread regarding CLJ-3550 getting 50.1 then 50.9 errors possibly due to blowing a triac on the power supply board. This will innevitably sometimes happen to any printer. No real explanation as to why it then goes to 50.9.
fortwayneprinterrepair

Copyright G & J Huskinson & MindMachine Associates Ltd 2013, 2015. Some pictures derived from HP User and Service guides. These technical pages do not constitute an offer for sale; just our knowledge at the time of writing. See the catalogue. Sales pages on this Web site use cookies to store user information. We also use Google Analytics to track site usage patterns.