Looks good, and good luck with the repair work! I'd be very careful running your printer without a battery pack and with the external charger. As far as I can tell the charger won't be able to provide enough current to drive the printer mechanism (only 150mA, and the manual explicitly says the printer won't work when charging a flat battery) however it's an unregulated supply and may provide enough voltage to fry some of the internal components (aside from a diode and small resistor it's connected directly to the battery rails, and the NiCad pack will normally limit the voltage but without it installed you'll end up with around 9V across the chips that are designed to run at 4.8V).
Hello. I remember the video you did a while back about the batteries for these printers. I tried a holder for four regular AA rechargeables, but I did need to file away some of the internal structure to get it to fit - and it still bulges a bit. I found a number of four NiMH battery packs on aliexpress in the right configuration. I'm keen to see more Coco action - just picked up a Coco 1. :)
I refrained from modifying the case and actually took material off the battery holder. The first go it still had trouble closing tightly (didn't bulge but would come apart easy without screws), but I eventually got it to fit perfectly.
Dr, you voice is so calming, reminds me of good times in your class, keep up the good work!
Looks good, and good luck with the repair work! I'd be very careful running your printer without a battery pack and with the external charger. As far as I can tell the charger won't be able to provide enough current to drive the printer mechanism (only 150mA, and the manual explicitly says the printer won't work when charging a flat battery) however it's an unregulated supply and may provide enough voltage to fry some of the internal components (aside from a diode and small resistor it's connected directly to the battery rails, and the NiCad pack will normally limit the voltage but without it installed you'll end up with around 9V across the chips that are designed to run at 4.8V).
Oh, good to know. I've run it with a heftier, regulated supply giving 2 amps and it still didn't print, so it seems to need the battery pack to work.
Hello. I remember the video you did a while back about the batteries for these printers. I tried a holder for four regular AA rechargeables, but I did need to file away some of the internal structure to get it to fit - and it still bulges a bit. I found a number of four NiMH battery packs on aliexpress in the right configuration. I'm keen to see more Coco action - just picked up a Coco 1. :)
I refrained from modifying the case and actually took material off the battery holder. The first go it still had trouble closing tightly (didn't bulge but would come apart easy without screws), but I eventually got it to fit perfectly.