Sharp PC-1262

[Dan C]

(02-13-2022 04:31 PM)robve Wrote:  Nice surprise and congrats with the acquisition!

I fixed two CE-125 units by replacing the NiCd batteries that go bad after 40 years. I also replaced the tape belts that are slipping. The belt to replace is the main belt that measures 4.2cm in diameter, 13cm in length (5.1in) and is less than 1mm thick (square shape).

Do not power up the CE-125 with the old NiCd batteries. They WILL start to leak and damage the PCB. One of my CE-125 that I acquired recently was worse than the other, see image:



After cleaning it up and replacing the NiCd batteries and tape belt, the CE-125 works like new. Replacement NiCd batteries can be soldered in place, e.g. a 4 pack of AA 1000mAh NiCd 4.8V. I didn't use NiMH because there is no overcharge protection in the CE-125. If the leakage affected some of the wires like in the picture, it will take a bit more time to replace and solder new wires.

The CE-125 will operate on the EA-23E power supply without batteries, so taking them out means that the CE-125 can still be used. The NiCd batteries are helpful to keep the voltage/power levels sufficiently high when operating the printer and tape unit.

Inexpensive thermal paper rolls that are exactly the same as SHARP paper rolls can be found on e.g. Amazon. Look for POS1 Thermal Paper Rolls 2-1/4 x 16 ft | 18mm diameter. These fit perfectly the CE-125, CE126p, and other SHARP thermal printers.

- Rob

Thank you for the information on the NiCd battery issue!
I opened my CE-125 up, and the NiCd was totally dead.
Luckily the battery leak was not too bad, just some on one of the battery terminals, and
the pcb and wires was not affected.
I just removed the dead NiCd for now, the printer works anyway with just the power supply as you said.
Will the cassette deck work also without NiCd installed?
Maybe i will install some new NiCd someday