How to ink Casio FR 1211 Printing Calculator

https://support.casio.com/storage/en/manual/pdf/EN/004/FR-2650T_WA_EN.pdf

Hello Michel Dekock,

Could not find your FR2500 (but close)...

Has worked every time for me...

Mount the paper roll on the wire bracket... feeding
over the top of the ROLL (TOWARD THE MACHINE).

With the keyboard FACING away from yourself
Fold the FRONT EDGE of the PAPER on to the
side to form a chisel point... and insert the point
(folded side up) in the rear roller slot (paper feed)...

As shown on FR2650
http://www.ebay.com/itm/Casio-FR2650TM-Printing-Calculator-FR2650TM-/122298781152?hash=item1c79934de0:g:bwEAAOSw44BYbWjv

With the PRINT feature turned on the roll should be
advancing while holding down the TOTAL key...

Hold the key until the edge of the paper roll emerges from the machine.

Hope that helps.
(now you only have to freshen up the ink).

https://en.wikipedia.org/wiki/Carnac_the_Magnificent%E2%80%8B

Perhaps the manual will help:

Casio HR 150TER User Manual

The printer mechanism probably has build-up of ink and dirt which is causing the numbers to blur when it prints.

..

FR 2650TM Graphing Fraction Scientific Financial Basic Printing...

Manuals - Support - CASIO

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CasioManuals are available for free on our website by selecting one of the links below. If you need a manual to be printed and mailed to you please call ...

FR-2650TM - Graphing, Fraction & Scientific ... - Casio

www.casio-usa.com > ... > Products > Calculators & Dictionaries > Printing

Manual. (Opens a new window) Product Manuals(Opens a new window). Technical Specs. FR-2650TM Technical Specifications ... Service Locations.

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http://www.inkfair.com/index.php?main_page=product_info&products_id=1082

http://www.fixya.com/support/t129364-replace_ink

There should be a wide slot in the bottom of the calculator. In the slot is a black plastic tab. Pinch the tab and pull it straight out and you'll be holding a PR-72 ink roller. Push a new one in the same way, and it will snap into place.
As the warning says, don't try to add ink to an old roller. Excess ink will gum up your printer.
PR-72 is a Porelon product number, from page 5 of this catalog. Other manufacturers make the same roller and give it a similar name: NR72, IR-72, something like that.

There is settting for the print setup for this calculator I believe if not then check the print head for build up or blockage

the ink roller installed wrong, remove ink roller, re-install it

Printing models (except HR-8TE): 1. Have calculator in ?print? mode 2. Press [CA] 3. Hold [SET/%] key for about 3 seconds 4. Input the tax rate 5. Press [TAX+] 6. Press [SET/%]