on my casio pcr-365a celectronic cash register some of printed columes are missing on the sales receipt.
i replaced the ink ribbon. what can be wrong?
? how to open the cash register, to check if something is lodged.

oz, August 2010

This is common with this printer. It is usually the print head failing. If it didn't change when you relaced the ink cartridge then the cable has probably snapped, or the head is partially damaged or worn. It is very unlikely to be anything stuck in the printer, but you can take the ink cartridge back out and wipe the head behind it if you want to try that. otherwise, take it to a dealer for a printer replacement, or throw it away if it is very worn.

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If anyone needs / looking for a Casio PCR-365A manual,

http://the-checkout-tech.com/manuals/cashregisters/Casio_PCR-365A_operators_manual.html

Registerman, August 2010