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HP 645A Cyan Original LaserJet Toner Cartridge, C9731A

HP 645A Cyan Original LaserJet Toner Cartridge, C9731A

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Product # C9731A
  • Original HP cartridge, designed for reliability and consistency
  • Standard size, when you need just one
  • ~12,000 pagesSee all Specs

Selected options

(16 more available)
HP 645A Cyan Original LaserJet Toner Cartridge, C9731A
3% back in HP Rewards
Get the best results from your HP printing system. HP Smart technology[1] and chemically-grown toner formulas in HP 645A LaserJet Toner Cartridges work with your printer to deliver accurate, consistent color and reliable, cost-effective performance.

Take pride in high-quality prints with Original HP Toner.

The choice you can trust to help avoid reprints and wasted supplies. Choose Original HP Supplies, designed for reliability and consistency.

Outstanding color

Consistently accurate color and precise images with HP chemically-grown toner Optimal print quality with new image mode feature[3]

Reliable, cost-effective

Cost-effective operation with all-in-one HP toner cartridges HP Smart technology[1] tunes particle charge for reliable results Rated A+ for service and reliability, PC Magazine August 2003

Easy to use

Easy to use automatic alerts, on-line ordering with HP Smart printing technology[1] When a color cartridge runs out, continue printing with the black cartridge[2] Easy to use and install with HP Smart printing technology[1]
HP black logo

Original HP Toner

Precision output, page after page to keep your business running smoothly.

HP Original Toner Color Supplies
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Print stunning documents

Vibrant colors and rich blacks

HP Original Toner Supplies
rich colors icon

Help protect your printer and data

Tamper-resistant chips, firmware and packaging

HP Original Toner Supplies
Health features

Commited to office air quality

Designed and tested with your health in mind

HP Original Toner Supplies

Supplies Recycling

More than one billion Original HP Ink and Toner cartridges have been recycled by customers with HP Planet Partners1

HP Supplies

Closing the Loop

When you buy Original HP Ink and Toner, you become part of a global recycling and sustainability effort.

Your used cartridges are the difference between plastics in landfills, and plastics that close the loop.





How the recycling process works

Collection

Cartridges are collected and transported to HP recycling facility.

Sorting

Cartridges are sorted and components are separated.

Shredding

Cartridges are shredded or disassembled.

Separation

Materials are sorted into singular material streams and are used to create new cartridges.

  1. Program availability varies. See here.
HP 645A Cyan Original LaserJet Toner Cartridge, C9731A is rated 5.0 out of 5 by 2.
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Rated 5 out of 5 by Steeleye from always great I have been using this product with my laserjet 550 for many years and it never disappoints.
Date published: 2013-07-09
Rated 5 out of 5 by Somamac from Defective Cartridge / High Cost This cartridge was ordered to test whether my 5550n or the cyan cartridge in it (ordered in May 2011) was defective causing a memory tag message to come up on the printer display. The new cartridge worked, indicating it was the older cyan cartridge, and not the printer, that had a problem. (I had never had this problem with any 5550n cartridge ordered previously.) The new cyan cartridge has worked flawlessly so far. The HP cartridges for this printer are very good ... and, in my view, unreasonably expensive. Even with the discount offered for multiple purchases over the course of a year ("My Print Rewards"), I am continually forced to rethink whether it makes economic sense to use cartridges from HP for this printer. Replacing all 4 cartridges cost well over $1100. Astonishing!
Date published: 2011-11-19
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Return and exchange information
HP.com will accept returns or exchanges for this product up to 30 days from the date of delivery. A 15% restocking fee may apply. For details, please visit: https://www.hp.com/us-en/shop/cv/returnsandexchanges.