Does buying Compatible or Remanufactured Ink Void my Printer Warranty?

NO! The manufacturer cannot void your warranty simply because you choose to save money using compatible or remanufactured products. You are protected under the Magnusson Moss Warranty Improvement Act of 1975. You can read more about your rights to use compatible Ink & Toner here:

Warranty Information
100% Quality & Satisfaction Guarantee

We guarantee all Compatible & Remanufactured products with a One Year 100% Quality & Satisfaction Guarantee. We guarantee every product is made to the highest standards and tested for quality assurance before leaving our facility. You can return any product for Refund within 90 Days of purchase or Exchange any product(s) within 365 days of the original purchase date. All Genuine OEM Product(s) are backed by the OEM (Original Equipment Manufacturer) directly. Please visit our return policy page for more information.

Return Policy
InkGrabber - 5 Star Rating!

At Inkgrabber, we treat all our customers like part of the family and take our customer service feedback very seriously. That's why Inkgrabber has paired with eKomi, the number 1 independent ratings provider, to bring you REAL customer feedback. You can shop with confidence knowing that you're getting a high quality product from a credible vendor. See what our customers are saying about us by checking out or InkGrabber Reviews.

Customer Reviews
Over 1 Million Orders Shipped!

As a family owned and operated business, our #1 priority is to treat our customers like they’re part of our family. Our goal is to combine low pricing with exceptional customer service to keep our relationship with you going strong for years to come! With this philosophy, we have achieved a 5-Star rating with Google & Ekomi Reviews, as well as an A+ with the BBB, making us one of the highest rated ink merchants in the United States.

Learn More

NCR 7731 Proof Machine Ribbons

IJM51604A
Remanufactured HP (51604A) Black Thermal Inkjet Cartridge
Price: $12.99
Buy 3 or more:
$12.00 each
(Save $2.97+)
Quantity:

OEM51604A
Genuine HP (51604A) Black Thermal Inkjet Cartridge
Price: $17.99
Buy 3 or more:
$17.00 each
(Save $2.97+)
Quantity:

OEM51605B
Genuine HP (51605B) Blue Inkjet Cartridge
Price: $17.99
Buy 3 or more:
$17.00 each
(Save $2.97+)
Quantity:

OEM51605R
Genuine HP (51605R) Red Thermal Inkjet Cartridge
Price: $17.99
Buy 3 or more:
$17.00 each
(Save $2.97+)
Quantity:


The NCR 7731 Proof Machine will automatically microfilm, sort, and total checks in accordance to overseen bank standards. This machine can process payment information one customer at a time or in medium to large batches to maximize productivity. Combining your NCR Proof Machine 7731 with our Remanufactured and Genuine HP ink cartridges will create bold and smooth text on printouts. We carry the OEM / Genuine and Remanufactured HP 51604A Black Thermal Inkjet Cartridges, the Genuine HP 51605B Blue Inkjet Cartridges, and the Genuine HP 51605R Red Thermal Inkjet Cartridges which have been designed to easily fit into your NCR Cash-Register 7731 Proof Machine. Every Genuine and Remanufactured HP inkjet cartridge for your NCR printer has up to a 2 Year shelf-life and is backed with the Inkgrabber 90 Day Money Back Guarantee.