HP Original Cartridges

CE390A HP 90A Black Toner Cartridge for HP M601/M602/M603 /M4555
£151.51 ( US - price excl. VAT, but we only ship to the UK )

Availability: In stock •

CE390X HP 90X High Capacity Black Toner Cartridge for HP M602/M603/M4555
£253.21 ( US - price excl. VAT, but we only ship to the UK )

Availability: In stock •

(The "X" size won't fit the M601)

Reliable Remanufactured Cartridges

Fan

RK2-1992 Fan For HP Laserjet P4014,P4015,P4515 Series Printers
£32.58 ( US - price excl. VAT, but we only ship to the UK )

Availability: Not in immediate stock, so back-ordered on request. Delivery typically 5-7 days •

HP P4014 and M601 Series Fan RK2-1992.

RK2-1992 is one of four fans used in the LaserJet P4014 / M601 series printers. It is sometimes called FN102 and is at the right rear of the printer. HP Partsurfer says it cools the cartridge area - the cartridge needs airflow because the fuser will end to heat the printer up. The toner used in the P4014 is deliberately a low melting point design - so it has to be kept cool. The fan plugs into the DC controller board nearby. For the general context where it is used see here.

There is some room for confusion about the numbering of fans in the printer caused by a mismatch between the Service manual and HP Partsurfer information. Fans seem to carry the HP part number - so order the number on the fan. If you order RK2-1992 you will get that code.

Like all the other fans in the printer this is an axial fan with three wires - drive voltage, ground and fan clock signal indicating its rate of spin. Laser-printer fans are rated to run at 24 Volts, which is also used by the motors. This fan is specific to the LaserJet P4014 and Enterprise 600 M601/2/3 series printers.

Fans will be idle when the printer is in a sleep state and might spin at low power when it is in standby. During printing all the fans will come to something like full speed. Fan speed is monitored by the DC controller.

HP Partsurfer says:

RK2-1992-000CN Cooling fan (FN102) - Exhausts heat from toner cartridges

Fan speed is presumably determined by the printer action and possibly by the environment sensor thermistor on FN101 RK2-0359 which the printer uses to sense it's environmental temperature.

If the fan does not spin as expected this is sensed by the DC controller and error 57.01 displayed (rather than 57.03 as in the Service Manual).

Inspect the fan to determine if its rotational movement is being obstructed.
Verify that the fan connection on the DC controller is securely seated - the schematic says it is J75.
If the error persists, replace the fan.

Fans do wear out - they are mechanical. There is a bit on repairing them here .

The fan plugs into the DC controller PCB, which will also sense fan clock.

The fan is likely to be known as RK2-1992, RK2-1992-000 or RK2-1992-000CN. The latter is HP's full code but the variant number at the end of the code is superfluous. Icecat says it has an EAN/UPS of 5711045104954.

According to HP Partsurfer these fans are used in the P4014, P4015, P4515 and the Enterprise 600 M601, M602 and M603 models and in the M4555 and M4559fskm which is based on the same engine. The N, DN, TN, X and XH variants of the printer all use the same fan.

Supply Situation

Three UK distributors list this fan in July 2013. Only one had stock of original HP part and another of refurbished units (tested clean working pulls). Costs for a new fan would be of the order £10 and a refurb £8 (our prices vary a bit as things change in distribution).

We will normally be able to supply RK2-1992 fans within 1-2 days.

More information on the fan numbering is to be found here.

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 catalog. Sales pages on this Web site use cookies to store user information. We also use Google Analytics to track site useage patterns.