Can't find my manual for canon p23-dh iii. where on the calculator, and how, do you remove the old ink to insert new one?

Use CP 13 ink roller 2pk or larger. You just pull out the old one and pop the new one in its place. If you look under product description on the web page it lists your P23 dh III.

Is this brand lasting longer than the Porelon brand?

This is a quality product but I don't use the calculator enough to be able to determine how long it lasts compared to another brand

Will this ink work on a canon p23-dh ii?

Yes it should work in that model

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🖤❤️ Ink your success with every calculation!

WIDE COMPATIBILITY - Fits over 20 Canon calculator models including P23-DH V and P27-DH—never worry about compatibility again.
TRUSTED REPLACEMENT - Directly replaces Canon CP13 parts, ensuring reliable performance and crisp print every time.
FRESHNESS GUARANTEED - Each ink roller is individually sealed to maintain peak ink quality until you need it.
COMPACT LIGHTWEIGHT - At just 20g and slim dimensions, it’s easy to store and replace without hassle.
DUAL COLOR INK ROLLER - Switch seamlessly between black and red for clear, professional calculations.

The COMPUMATIC IR-40T ink roller offers dual black and red ink in a compact, individually sealed cartridge compatible with over 20 Canon calculator models, including the P23-DH V and P27-DH. Designed as a direct replacement for Canon CP13, it ensures crisp, professional print quality and hassle-free installation for your office or home calculator.

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Manufacturer	COMPUMATIC
Brand	COMPUMATIC
Model number	IR40T
Package Dimensions	10.1 x 6 x 1.5 cm; 20 g
Material Type	Plastic
Manufacturer Part Number	CP-13
Item Weight	20 g

COMPUMATIC 2 x COMPUMATIC Compatible/Replacement Calculator Ink Roller Black/Red IR-40T for Canon P23-DH V, P27-DH and More

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