Portable Printers fit in to two categories from Citizen:

PN48, PN60, Notebook Printer II - these are portable printers that print on plain A4-paper using specialist ink ribbons. The printers are now discontinued but consumables are still available.

For these printers using a search engine such as Google and entering "Citizen PN60 Cartridges" will generally give you a broad range of suppliers.

If your regular supplier cannot provide your requirements for portable printer consumables we can recommend SwiftClik Limited.
They are based in the UK but will happily ship worldwide by prior agreement of shipping charges and accept credit card payments online.

PD22, CMP-10, PD04, PD24 - these are portable printers working on thermal paper rolls of 58mm or 112mm width and require no ribbons - just standard thermal rolls.

For details of local suppliers, please contact us by clicking here or you can use SwiftClik Limited.