INTRODUCTION
To most, the old model HP C5280 this motor was removed from was a dead pile of plastic junk - but look beyond the carcass of whatever you may be about to throw away and it is often possible to find a little gem inside, this is one of those "gems"
Sustainability is the name of the game! Anything (that has been tested and still functioning properly) should be repurposed creating saving in wasted Ee and reducing the poisoning our environment when items are buried in the earth at the local tip needlessly.
Never heard of Ee? It is a concept that creates a measurement of ALL things (not just electronics) that humans have made and the energy used in obtaining the raw material, processing the materials right through to a finished product and even should include the shipping of the item to the distributors/retailers.
If you would like to know more about Ee values, please take a lookHERE
HISTORY OF THIS ITEM:
Another salvaged part from some obsoleted IT equipment, an HP C5280 printer. Now I wouldn't really imagine anyone is going to bother servicing their old HP printer, even though I believe these motors are used extensively across a number of HP models - why bother?, these printers are snap together, plastic beasts which were not terribly expensive to purchase and it would seem to me, why would anyone bother servicing one of these? But this motor could well be an ideal candidate for the "experimenter" who can make use of such a motor OR reverse it's original purpose and use it as a generator (albiet ... low voltage output)
UNIDENTIFIED MANUFACTURER - DC Motor
Made In China
There is a manufacturers logo printed onto the case but I have been unable to identify who it is.
Part # (these are likely to be HP part numbers, this motor would have been a 3rd party supplier to HP) C9058-60071 TD427704
Removed from an HP C5280 All In One office printer.
DC motor
Characteristics are largely unknown although I have made some basic tests ...
Bi-directional movement i.e reverse the supply polarity and the motor doesn't object at all, just reverses direction.
Rotation is clockwise when the terminal indicated as positive on the rear is connected to positive of the DC source.
Functions equally well as a generator, meaning that when the shaft is rotated, a DC voltage is generated at the rear terminals and this output changes polarity depending upon the rotation direction. From "hand spinning" the shaft, I can easily achieve 1.5V DC output at the terminals.
Using a source DC voltage of 9V, the current drawn is 80mA - the same result when the applied DC is reversed.
No idea what the speed of rotation is except to say - FAST! More importantly, plenty of torque and it was very difficult to hold the shaft and try to stop the rotation. I don't believe there is any internal gearing either.
No discernible operational noise at all, very quietly running motor
DIMENSIONS:
36.9mm OD x 50mm length
Although miniature, quite large for this "breed" of motor
Shaft has a friction fit nylon head which is intended to accept a ribbed belt - a little difficult to accurately measure the steel shaft but my best estimate is around 1.75mm OD It should be possible to "pop off" the nylon head if necessary, then fit whatever is being substituted fixed by twin grub screws.
WEIGHT: 190g
Quite heavy for a small motor
Rear of the motor has 2x solder tags, to which is currently connected the original flying leads.
This basic information is intended to give an idea of the motor's suitability for your "project", the voltage range I suspect is in the region of 5V ~ 12V but it would also have been nice to measure the rotational speed!
I have now packed this motor into a sealed clear plastic packet while it awaits a new purpose in life!
