# Compumatic Black/Red Ink Roller 6-Pack | Replaces IR40T CP13 EA772R **Brand:** COMPUMATIC **SKU:** wrd0377 **ASIN:** B071R331GC **Canonical URL:** https://crowcrowcrow.com/p/compumatic-calculator-ink-roller-replaces-ir40t-cp13-ea772r-black-red-6-pk/wrd0377 **Category:** electronics **Subcategory:** Categories **Availability:** in_stock **Price (INR, all-inclusive):** ₹1,744 **Discount:** 40% **Customer rating:** 4.60/5 from 2,731 ratings ## Description Compumatic black and red ink rollers (6-pack) ensure clear printing for your Casio calculator. Compatible with many models including HR-100TM and HR-150TM. All duties and GST included for seamless delivery to India. ## Highlights - Dual Color Printing — Features both black and red ink for clear distinction of positive and negative numbers or different data categories on your calculator printouts. - Extended Supply — Comes as a 6-pack, providing a long-lasting supply of ink rollers. This means fewer reorders and consistent availability for your essential office equipment. - Wide Casio Compatibility — Specifically designed to replace IR40T and compatible with numerous Casio printing calculator models, ensuring a proper fit and reliable function. - Individually Sealed — Each ink roller cartridge is sealed to preserve ink freshness and prevent drying out before installation, guaranteeing optimal print quality from the first use. ## Key features - Black and Red 2 Color Ink Roller - 6 individually sealed cartridges - Compatible with Casio HR-100TM and HR-150TM Printing Calculator - Compatible with Casio HR-300RC, HR-200RC, HR-170RC, HR-150RC, HR-100RC Printing Calculator - Compatible with many other Casio calculator models, see description... ## Why choose this product - Reliable Performance for Your Calculator — These Compumatic ink rollers are engineered for consistent, high-quality printing, ensuring your calculator's output remains sharp and legible. Unlike generic alternatives that may fade or jam, these are designed to meet specific compatibility standards. Each roller is individually sealed, preserving ink integrity until it's time for replacement. This attention to detail means you get dependable performance, reducing the frustration of smudged or missing print on important financial documents or calculations. Trust in a product that keeps your essential office tool running smoothly. - Ideal for Home Offices and Small Businesses — This 6-pack is perfect for users who rely on printing calculators for daily tasks, such as accounting, bookkeeping, or retail operations. If you frequently print calculations and need a dependable ink supply, these rollers are a practical choice. Users who require clear, dual-color output for distinguishing figures will find them highly effective. Those who prefer to avoid the hassle of frequent replacements and seek a cost-effective, imported solution will benefit from the bulk pack. ## How to use 1. Ensure your Casio printing calculator is powered off. Gently open the calculator's cover or access panel where the ink roller is located, following your model's specific instructions. — Prepare for Replacement 2. Carefully remove the old ink roller by lifting it straight up or releasing any securing clips. Note the orientation of the old roller to ensure correct installation of the new one. — Remove Old Roller 3. Unseal one new Compumatic ink roller cartridge. Align it correctly with the print head and gently press it into place until it clicks or sits securely. Ensure it spins freely. — Install New Roller 4. Close the calculator cover. Power on the calculator and perform a test print to verify that the new ink roller is functioning correctly and producing clear black and red characters. — Test Print ## Product details | Field | Value | |---|---| | Compatible Models | Casio HR-100TM, HR-150TM, HR-300RC, HR-200RC, HR-170RC, HR-150RC, HR-100RC, and many other Casio models. | | Cost per use | 6 cartridges at {{ccc_offer_price}} — {{ccc_price_per_unit:6:cartridge}} | | Shelf life after opening | 12 months (sealed) | | Contraindications | Not compatible with non-printing calculators or calculator models not listed as compatible. | | Allergens / common irritants | Ink composition may vary; consult manufacturer for specific ingredient details if sensitive. | | Brand | COMPUMATIC | | Model Number | IR40T | | Part Number | TC100rib | | Color | Black and Red | | Material | Ink | | Size | 6 Pack | | Item Package Quantity | 6 | | Calculator Type | Printing | | Item Weight | 0.01 pounds (0.0045 kg) | | Item Package Weight | 0.018 kilograms | | Item Dimensions | 7 inches (17.78 cm) L x 5 inches (12.7 cm) W x 0.5 inches (1.27 cm) H | | Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers | ## Frequently asked questions ### How to buy an original Compumatic ink roller in India? Purchase directly from crowcrowcrow.com to ensure you receive an original Compumatic ink roller, factory-sealed and imported from authorized US retailers. All customs duties and GST are included in the listed price, with delivery via ExpressBox tracked shipping to your Indian pincode. ### Will this ink roller fit my Casio calculator? This ink roller is compatible with many Casio printing calculator models, including the HR-100TM, HR-150TM, HR-300RC, HR-200RC, and HR-170RC. Please check the detailed compatibility list in the product description or technical specifications to confirm it matches your specific calculator model. ### What is the difference between black and red ink? The dual-color ink allows for clear differentiation on printed receipts. Typically, black ink is used for standard figures and positive values, while red ink is used to denote negative numbers or specific accounting categories, enhancing readability. ### How long does one ink roller last? The lifespan of an ink roller depends on usage frequency. For moderate use, a single cartridge can last several months. This 6-pack provides a substantial supply, ensuring you have replacements readily available for extended periods of calculator printing. ### Are these ink rollers individually sealed? Yes, each ink roller cartridge in this 6-pack is individually sealed. This packaging protects the ink from drying out and ensures optimal performance and print quality from the moment you open and install a new cartridge. ## Compliance Ensure calculator is powered off before installation. Keep ink rollers away from direct heat and moisture. Not compatible with non-printing calculators. ## Images 1. https://images.crowcrowcrow.com/B071R331GC-0.webp 2. https://images.crowcrowcrow.com/B071R331GC-3.webp 3. https://images.crowcrowcrow.com/B071R331GC-6.webp 4. https://images.crowcrowcrow.com/B071R331GC-9.webp --- Source: https://crowcrowcrow.com/p/compumatic-calculator-ink-roller-replaces-ir40t-cp13-ea772r-black-red-6-pk/wrd0377 Returns: 30 days, free, by mail. Shipping: Free across India, 7–13 business days. Prices are all-inclusive (duties + GST).