Description

The Genuine HP Q5945YC Black Contractual LaserJet Toner Cartridge, commonly identified as HP 45Y / Contract 45-series, is a high-capacity Original HP toner designed for HP LaserJet 4345 and M4345 multifunction printer environments.
Unlike the standard HP 45A Q5945A cartridge rated at approximately 18,000 pages, the contractual Q5945YC version is an Optimized High Yield cartridge rated at approximately 23,500 pages, making it particularly attractive for high-volume business and Managed Print Service environments.
- ✔ Genuine HP Original / OEM Toner
- ✔ Manufacturer Part Number: Q5945YC
- ✔ Black Contractual LaserJet Toner
- ✔ Optimized High Yield Version
- ✔ Approx. 23,500-Page Yield
- ✔ Higher Capacity than Standard Q5945A 18K
- ✔ Designed for HP LaserJet 4345 / M4345 MFP Family
- ✔ Ideal for High-Volume & Managed Print Environments
23,500-Page Optimized High Yield Contract Toner
The Genuine HP Q5945YC is a contractual high-capacity version of the toner platform used by the HP LaserJet 4345 / M4345 MFP family.
HP specifies the Q5945YC as an Optimized High Yield Original HP Contractual Black Toner Cartridge with an approximate yield of 23,500 pages.
This provides approximately 5,500 additional pages of rated capacity compared with the standard Q5945A 18,000-page cartridge.
Q5945YC vs Q5945A – What's the Difference?
| Feature | Q5945A | Q5945YC |
| Brand | Genuine HP | Genuine HP |
| Colour | Black | Black |
| Product Type | Standard Retail Toner | Contractual / Managed Toner |
| HP Yield Classification | Standard Cartridge | Optimized High Yield |
| Approx. Yield | 18,000 Pages | 23,500 Pages |
| Additional Rated Capacity | — | Approx. 5,500 Pages |
| LaserJet 4345 / M4345 | Compatible | Compatible |
Important: Q5945YC is not a compatible or remanufactured cartridge. It is a Genuine HP Original contractual toner cartridge intended primarily for contractual, Managed Print Service and enterprise supply channels.
Key Features
- ✔ Genuine HP Original / OEM Product
- ✔ Part Number Q5945YC
- ✔ Black Laser Toner
- ✔ Contractual / Managed Supply
- ✔ Optimized High Yield
- ✔ Approx. 23,500 Pages
- ✔ Higher Capacity than Q5945A
- ✔ Designed for High-Volume Printing
- ✔ Professional Black Text & Graphics
- ✔ Reduced Cartridge Replacement Frequency
- ✔ Suitable for HP LaserJet 4345 / M4345 MFP Series
Compatible HP LaserJet Printers
The Genuine HP Q5945YC Black Contract Toner Cartridge is designed for the HP LaserJet 4345 / M4345 MFP platform, including:
- ✔ HP LaserJet 4345 MFP
- ✔ HP LaserJet 4345x MFP
- ✔ HP LaserJet 4345xm MFP
- ✔ HP LaserJet 4345xs MFP
- ✔ HP LaserJet M4345 MFP
- ✔ HP LaserJet M4345x MFP
- ✔ HP LaserJet M4345xm MFP
- ✔ HP LaserJet M4345xs MFP
Designed for Contract & Managed Print Environments
The “C” suffix in Q5945YC identifies this as an HP contractual supply rather than the standard retail-channel Q5945A cartridge.
Contractual toner cartridges are commonly supplied through enterprise agreements, Managed Print Services (MPS) and corporate printer fleet programs.
For customers who have legitimately acquired genuine contractual HP supplies and operate compatible HP LaserJet equipment, Q5945YC offers the advantage of substantially higher rated capacity.
Ideal for High-Volume Legacy HP Fleets
Many HP LaserJet 4345 / M4345 MFP printers remain in service because they were originally designed as robust departmental machines.
For organisations continuing to operate these printers, a genuine 23,500-page Q5945YC cartridge can provide an economical way to maximise the useful life of the existing equipment while reducing the frequency of toner replacement.
Genuine HP Print Quality
As a Genuine HP Original cartridge, Q5945YC is engineered for the HP LaserJet 4345 / M4345 printing system to provide consistent black text, clean graphics and dependable performance throughout high-volume print runs.
Product Specifications
| Brand | HP |
| Product | Original HP Contractual Black LaserJet Toner Cartridge |
| Common Cartridge Reference | HP 45Y / 45-Series Contract |
| Manufacturer Part Number | Q5945YC |
| Manufacturer Type | Genuine / Original HP |
| Supply Type | Contractual / Managed |
| HP Yield Classification | Optimized High Yield |
| Product Type | Laser Toner Cartridge |
| Colour | Black |
| Approximate Yield | 23,500 Pages |
| Pack Quantity | 1 Cartridge |
| Compatible Printer Family | HP LaserJet 4345 / M4345 MFP Series |
Ideal For
- ✔ Existing HP LaserJet 4345 / M4345 MFP Users
- ✔ High-Volume Business Printing
- ✔ Managed Print Service Environments
- ✔ Corporate Printer Fleets
- ✔ Government Departments
- ✔ Schools & Universities
- ✔ Accounting & Administration Departments
- ✔ Customers Looking for Maximum Genuine HP Toner Capacity
Why Choose Q5945YC Instead of Q5945A?
If your compatible HP LaserJet 4345 / M4345 MFP accepts both cartridges, the main advantage of Q5945YC is capacity.
The standard Q5945A is rated at approximately 18,000 pages, while the contractual Q5945YC is rated at approximately 23,500 pages.
That represents approximately 30% more rated page capacity, or around 5,500 additional pages per cartridge, making Q5945YC particularly attractive for higher-volume users.
What's Included?
- ✔ 1 × Genuine HP Q5945YC Black Contractual Toner Cartridge
- ✔ Approx. Yield: 23,500 Pages
Frequently Asked Questions (FAQ)
Is Q5945YC a Genuine HP toner cartridge?
Yes. Q5945YC is a Genuine HP Original contractual toner cartridge. It is not a third-party compatible or remanufactured cartridge.
What is the yield of HP Q5945YC?
HP's Original Contractual Toner documentation specifies Q5945YC at approximately 23,500 pages.
What is the difference between Q5945A and Q5945YC?
Both belong to the toner platform used by the HP LaserJet 4345 / M4345 MFP family. Q5945A is the standard retail cartridge rated at approximately 18,000 pages, while Q5945YC is an HP contractual Optimized High Yield cartridge rated at approximately 23,500 pages.
How much more does Q5945YC print than Q5945A?
The rated difference is approximately 5,500 pages, giving Q5945YC roughly 30% greater rated capacity.
Does Q5945YC fit the HP LaserJet 4345 MFP?
Yes. HP's contractual supplies documentation specifically lists Q5945YC for the LaserJet MFP 4345 / M4345 platform.
Does it fit the HP LaserJet 4345x MFP?
Yes. Q5945YC is compatible with the HP LaserJet 4345x MFP.
Does it fit the 4345xm and 4345xs?
Yes. Q5945YC is also listed for the 4345xm and 4345xs variants.
Does it work with the newer M4345 series?
Yes. Compatible models include the HP LaserJet M4345, M4345x, M4345xm and M4345xs MFP variants.
What does Contractual toner mean?
Contractual toner is an Original HP supply distributed primarily through enterprise contracts, Managed Print Services and similar corporate supply channels rather than HP's standard retail consumables channel.
Is contractual toner the same as compatible toner?
No. “Compatible toner” normally refers to a third-party cartridge. Q5945YC is an Original HP manufactured cartridge; “contractual” describes its HP distribution and supply channel.
Is this toner black?
Yes. Q5945YC is a black monochrome LaserJet toner cartridge.
How many cartridges are included?
This listing includes one Genuine HP Q5945YC Black Toner Cartridge.
OEM Code: Q5945YC
Brand: HP
Duty Cycle: Approx. 23,500 pages
Includes Of:
1 x Genuine HP Q5945YC Toner Cartridge 45Y
1 x HP Q5945YC High Yield Toner Cartridge 45Y can be used for:
HP LaserJet 4345 MFP
HP LaserJet 4345x MFP
HP LaserJet 4345xm MFP
HP LaserJet 4345xs MFP
HP LaserJet M4345 MFP
HP LaserJet M4345x MFP
HP LaserJet M4345xm MFP
HP LaserJet M4345xs MFP
Estimate shipping
Refund Policy
The OZ Toner Return Policy applies to all purchases made on this website.
We recommend you read our Returns Policy carefully prior to placing an order and retain a copy of these terms and your order so you are familiar with our policy on refunds, returns and exchanges and your rights under the Australian Consumer Law.
We recommend you immediately examine goods delivered to you to ensure that there are no visible signs of damage or fault and that the goods received match the order you placed. Our exchange/return window is within 30 days of receiving your order. All incorrectly ordered or unwanted returns will incur a minimum 20% restocking fee.
Our Return Address
52A/5 Gladstone Rd, Castle Hill, NSW 2154
Exchange/Return (Consumables)
OZ Toner allows exchange/return within 30 days of receiving your order. This applies to consumable products purchased from us: inks, toners, printing and fax supplies and paper. Please scroll down to read our policy on exchange/return for scanners and printers.
If any consumable goods purchased from OZ Toner are damaged, lost in transit, incorrect or faulty, please contact us at support@oztoner.com with this information:
- Your order number
- Detailed description of the reason for return/exchange request
- Photo proof (if applicable).
For exchanges, the product/s must be in the original (new/unused) condition that you received it, in its original packaging. The customer is responsible for the postage fee to send the product/s back to us. OZ Toner will pay the postage to send the new product/s to the customer. All product/s sent back to us must use tracked post, we are not responsible for product/s lost in transit.
Exchange/Return (Hardware)
OZ Toner allows exchange/return within 30 days of receiving your order. This applies to hardware products purchased from us: scanners and printers.
If any hardware goods purchased from OZ Toner are damaged, lost in transit, incorrect or faulty, please contact us at support@oztoner.com with this information:
- Your order number
- Detailed description of the reason for return/exchange request
- Photo proof (if applicable).
Please ensure to contact us via email at support@oztoner.com before returning any items to obtain a Return Authorization Number. Return Authorizations are only valid for 14 days.
It is your obligation to pack returned products satisfactorily to prevent any damage to the items or boxes. You have a legal obligation to take reasonable care of the product/s while they are in your possession until they reach our warehouse.
When returning your purchase, we ask that you provide a Proof of Purchase (Order Confirmation Email) and where possible the product/s in original unopened packaging.
Once received back, we will issue a replacement or full/partial refund depending on actual case.
Change of Mind Returns
Please choose carefully as we do not provide a refund if you have simply changed your mind or made a wrong selection.
If you wish to exchange product/s which you have purchased in error, we will happily exchange provided that:
- You return the product/s within 30 days of purchase.
- You provide Proof of purchase (Your Order Confirmation Email)
- Product/s are unopened, unused and in its original packaging.
- A minimum of 20% restocking fee applies.
- You must bear the risk of return and is responsible for the costs of return postage.
- You must confirm the product/s are received and notify us before returning the product/s, the product/s being returned must satisfy all the return requirement stated above.
- The initial shipping fee charged, or any outbound postage incurred to ship to the customer will not be refunded or credited.
We reserve the right not to offer an exchange if the above requirements are not met.
Return shipping and costs are the responsibility of the customer. We recommend customers to send the item back with a tracked service. For high value products, the customer is also advised to use an insured shipping method.
Faulty or Damaged items
We provide refund or replacement on defective and damaged products.
You MUST contact us within 30 days of product/s being received and believed to be faulty. We will provide the contact information of manufacturer. Customer MUST contact manufacturer to request return authorization letter / DOA letter. Once we received the RA letter or DOA letter from the customer, we will initiate the return process and send customer our return instruction. When the goods are returned to us, we will offer either refund or replacement for the customer.
Items with Manufacturer Warranty:
Buyers must contact manufacturer of the item for all the warranty service within the warranty period. We will provide contact details of the manufacturer to the buyer. We have no other responsibility (including DOA) for items covered with manufacturer warranty.
Items with Onsite Manufacturer Warranty:
Buyers must contact manufacturer of the item for all the on-site warranty service within the warranty period. We will provide contact details of the manufacturer to the buyer. We have no other responsibility (including DOA) for items covered with manufacturer warranty.
Items with Return to Base Warranty:
Buyers are responsible to send back the faulty item to us. Items with valid warranty within the warranty period will be replaced with fully functional unit after checking. Please allow up to 2 weeks for replacement. We have no guarantee on product compatibility with buyers own equipment unless specified on the item listing.
Any other issues and queries, customers are welcome to send us message and email to discuss further.
Refund Conditions
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Refunds are only issued under certain circumstances, such as:
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DOA products where no exchange/replacement is possible
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Incorrect supply where the proper model cannot be provided
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Approved cases where neither replacement nor upsell option is available
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All refunds must be pre-approved by OzToner.au management before processing.
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Refunds are made via the original payment method and typically processed within 7 business days after approval.
Delivery Charges
Any product/s replaced under the Returns Policy due to being damaged, faulty or incorrect will be delivered to you free of charge.
Any returns due to you changing your mind about your purchase will incur a re-delivery fee.
Consumer Guarantees
Under the Australian Consumer Law, you have Consumer Guarantees for Goods and Services You purchase. Our product/s come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and for compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the product/s repaired or replaced if the product/s fail to be of acceptable quality and the failure does not amount to a major failure.
Where you believe an item is faulty, you must contact manufacturer to for it to be assessed within a reasonable period of time, and you must request return authorization letter from the manufacturer if the item is confirmed faulty. If there is a major failure with the item, and you have forwarded the return authorization letter granted by manufacturer to us, you may choose a refund or exchange. If the failure is minor, manufacturer will honor the warranty and repair the item for you within a reasonable time.
Where an item is damaged through misuse or abnormal use, OZ Toner cannot provide a refund, exchange or repair, whether the fault is identified by OZ Toner, the manufacturer or their service agent.
OZ Toner will require satisfactory proof of purchase before providing a remedy under the Australian Consumer Law.
For further information about the Australian Consumer Law and Consumer Guarantees, visit www.consumerlaw.gov.au.



