HP 97 printer "Idler" Gear

Description

Hewlett Packard
Idler Gear Replacement
For Hp TopCat series calculator printers
Replaces original HP-97 nylon gear
F
its
the following Hewlett-Packard Calculators:
1
)
TopCat Series Calculators
:
HP-91, HP-92
HP-95, HP-97
Features:
This gear fits inside the printer and drives that carriage return.  The original gear was made of a nylon like material and over the years it
disintegrates, looses teeth and such.  The picture shows that it is made of brass and fits very well into the printer gear drive mechanism.
Installation is fairly straightforward as you remove the back of the calculator, then three bolts holding in the printer.  Disconnect the printer circuit board, and note where the gear is located.
Carefully remove the c-clip with fine tweezers and set it aside.
I place an M3 washer under the gear to better align the gear with the larger black gear and motor gear.  Put the  c-clip back in place and carefully place the whole unit back into the calculator.  Bot in the three screws and reconnect the circuit board.
If the original gear fails, when you turn on the calculator the motor just keeps running because it is trying to set the carriage return mechanism on the printer but without a gear that is not possible.
Shipping:
Shipping costs are listed below.  For any multiple auction purchases contact me for actual shipping costs.
I will refund your extra shipping charges and only charge you actual shipping costs.
Also check my other HP calculator battery packs for sale especially for the Spice HP 33-34-35 calculators, and Classic (HP-35, 45,55,65,67) calculators.  I also sell USB chargin units which have an auto off feature so you cannot overcharge your battery packs.
Hope to add you to my list of satisfied customers.
Sincerely,
Mark Hoskins