I got my official HP Z3100 Lubrification Kit. You read it correctly. It lubrificates the carriage rails, I kid you not. The paperwork with it calls it lubrification about 20 times (including the official part name) and lubrication only a couple of times.
It got my attention when the box arrived with tape that says "Do Not Open Until Ready To Install". WTF? Inside that box was another cardboard box. In the inner box is Lubricant (spelled correctly) Oil- Syn 5.8cs rohs 5cc Gbottle (whatever that means - the part # is Q6675-60061), a cleaning cloth, a bottle of isopropyl alcohol, a glove and a pipette.
Surprisingly, inside the inner box is a 7 page photocopied document called "Lubrification Kit Assembly Process". Each page says "HP Confidential" at the bottom, and it shows HP's document history (last revised 5/11/2006). It is written by Miquel Julian, and English is not Mr. Julian's first language.
One interesting note for me is that the Z3100/Z2100 models are referred to as the Troja 12 and Troja 8 Platforms. They also mention Z1100 printers (?) as the Taj Mahal Platform.
The instructions are also enlightening (and I suppose mean that not everybody needs to do this?).
"This process is necessary to carry out it (sic):
# If the Preventative maintenance Kit #1 appears it.
# If there is an excessive noise when moving the carriage (jerk noise)
# If the system error about shout (sic) down of the carriage PWM appears
# If there are problems with IQ (vertical banding)"
They call for cleaning the front and back rails with a soft cleaning cloth and alcohol. Amusingly, the drawing for the bottle of alcohol is labeled cleaning cloth and vice versa. I think I can figure it out, though.
They then call for oiling both rails by applying an unspecified amount of oil with the pipette along the length of each rail. They then tell you to oil the bushings with the pipette at the rear center of the carriage. You do not need to remove the carriage, it says.
There is also a foam block called the oil module which should get 2-3 drops of oil. The bad photocopy photocopy illustration is a little difficult to make out, but it looks to be behind a plug at the rear of the carriage.
I will tackle this in the next couple of days and report back with more specifics when I'm a little clearer about these instructions. Some of it is a little cryptic, but it seems like there may be a little more to maintaining these printers than just lubing the rails.
Now I know I own a HP Troja 12 printer!