asked Nov 22, 2006 at 10:21pm
Hp HP LaserJet 5MP

Laserjet 5MP - text stretched vertically

I have an HP 5MP with relatively low mileage - 39,000 pages. There is an intermittent problem in which I hear a high-pitched motor whine, and the printed text is stretched vertically to a size about 50\% larger than normal. Sometimes only the first inch or so of the page is like this, and the rest prints normally. Sometimes the whole page is stretched in this manner, and the error light comes on. After one or more pages like this, the noise settles down to a lower pitch, and pages print normally.

I have studied postings in the forums here, and I don't see anything that exactly matches what I'm talking about. I've seen mention of compressed text, where it sounds like the paper is moving too slowly relative to the image being formed. And I've seen any number of descriptions of motor noises.

Almost sounds like you have a laser/scanner motor issue which instead of reporting a fatal error, just malfunctions and then when it comes up to speed prints ok. I have not worked on the motor in one of those and in fact I can not remember if I ever replaced the laser/scanner. We have had some success with some hp laser/scanner motors when we can get access to the motor shaft by applying a very small amount of light oil to the shaft. If it is possible with yours and I do not know if it is, you have to be very careful because if you put to much oil on or put the oil in the wrong place, it can splatter onto the optics when the printer prints and you can destroy the optics which will cause the need to replace the complete laser/scanner. The motor is located in the black box which sits under the top cover (have fun removing the cover). Best suggestion if the laser/scanner is the issue is picking up a used 5P or 5MP (M is for MAC and means it has a postscript simm and more memory on board which I think can be moved to the 5P to make it a 5MP) on ebay since even if the one on ebay does not work, I really doubt it has a bad laser/scanner since as I mentioned before, I can not every remember having to replace one.
by dmzcompute on Nov 23, 2006 at 7:40am Add comment
As I recall a canon LaserClass 7000 or 7500 fax machine also uses the same scanner motor. (and fuser).

I don't see many 5p's or LaserClass faxes in thrift stores, but your chances of finding a machine for parts are greater if you have more models to look for.
by Stephen on Nov 24, 2006 at 4:31am Add comment