HP-97 Printer Gear

[brianward]

As an alternative source for a replacement HP97 30 tooth printer gear, I can confirm that a suitable brass gear mentioned in older MoHPC forums threads is still available as of May 2014 from http://www.modellbauershop.de, (or just google modellbauversand ghw), part number 753030.

The website is in German which google can translate, or alternatively in native German the correct part can be found under "Zahnrader" (gears) / "Stirnrader Modul 0.3" (Spur gears pinion 0.3), then find the first one with 30 teeth down the left hand column costing (in 2014) 3.15 euro. Click on this and confirm the part number is 753030.

I recently repaired my own HP97 printer using this part, much to my relief.

The replacement gear just requires the hole to be slightly enlarged with a drill, and I added a washer to space out the slighly thinner new gear. It works perfectly, although a bit noisier - which is presumably why the original was made from a rubbery plastic.

I had to buy four to meet the minimum 10 euro order.

Judging by the age of the forum I found this part in, this part has been on sale for at least a decade with the same part number, so could be around for many years to come - which might be useful info to other HP97 users.