Description

The Genuine HP 45A Black Original LaserJet Toner Cartridge [Q5945A] is an original HP high-capacity black toner cartridge designed for the HP LaserJet 4345 Multifunction Printer family.
With an approximate yield of up to 18,000 pages, the HP 45A is designed for high-volume business and enterprise printing environments where dependable monochrome output and long cartridge life are important.
- ✔ Genuine HP Original LaserJet Toner
- ✔ HP Cartridge Number: 45A
- ✔ Manufacturer Part Number: Q5945A
- ✔ Black Toner Cartridge
- ✔ Approx. 18,000-Page Yield
- ✔ Designed for High-Volume Business Printing
- ✔ Compatible with HP LaserJet 4345 MFP Series
- ✔ Original HP Print Quality & Reliability
Genuine HP Original Toner
This is a Genuine HP Original LaserJet toner cartridge, not a compatible, remanufactured or refilled cartridge.
HP Original toner cartridges are engineered specifically for their intended LaserJet printers to provide consistent print quality, reliable operation and predictable cartridge performance throughout their usable life.
High 18,000-Page Yield
The HP 45A Q5945A is rated for approximately 18,000 pages, making it particularly suitable for offices and organisations operating high-volume HP LaserJet 4345 MFP equipment.
The large toner capacity reduces cartridge replacement frequency compared with lower-capacity office printer consumables and is well suited to centralised departmental printing.
Actual toner yield varies depending on page coverage, document complexity, print settings and operating conditions.
Key Features
- ✔ Genuine HP / OEM Product
- ✔ HP 45A Black Toner Cartridge
- ✔ Part Number Q5945A
- ✔ Approx. 18,000 Pages
- ✔ Professional Black Text & Graphics
- ✔ Designed for High-Volume Printing
- ✔ Reliable HP LaserJet Performance
- ✔ Ideal for Business & Enterprise Environments
- ✔ Specifically Designed for HP LaserJet 4345 MFP Family
Compatible HP LaserJet Printers
The Genuine HP 45A Q5945A Black Toner Cartridge is designed for the following HP LaserJet multifunction printers:
- ✔ HP LaserJet 4345 MFP
- ✔ HP LaserJet 4345x MFP
- ✔ HP LaserJet 4345xm MFP
- ✔ HP LaserJet 4345xs MFP
Important: HP 45A Q5945A should not be confused with HP 42A / 42X toner cartridges used by various HP LaserJet 4250 and 4350 series printers. Always check the toner part number required by your printer before ordering.
Built for High-Volume Business Printing
The HP LaserJet 4345 MFP family was designed for demanding departmental and enterprise environments. The high-capacity Q5945A cartridge complements these printers by providing a substantial toner capacity suitable for large document volumes.
It is an excellent choice for organisations that continue to operate reliable legacy HP LaserJet 4345 equipment and want to maintain the machine using Genuine HP consumables.
Consistent Professional Black Output
Genuine HP toner is engineered to deliver sharp black text, clean lines and consistent monochrome graphics across business documents such as reports, invoices, forms, correspondence and administrative records.
Product Specifications
| Brand | HP |
| Product | HP 45A Black Original LaserJet Toner Cartridge |
| Cartridge Number | 45A |
| Manufacturer Part Number | Q5945A |
| Manufacturer Type | Genuine / Original HP |
| Product Type | Laser Toner Cartridge |
| Colour | Black |
| Approximate Yield | 18,000 Pages |
| Pack Quantity | 1 Toner Cartridge |
| Compatible Printer Family | HP LaserJet 4345 MFP Series |
Ideal For
- ✔ Offices Still Operating HP LaserJet 4345 MFP Printers
- ✔ Government & Corporate Environments
- ✔ Schools & Education
- ✔ Accounting & Administration Departments
- ✔ High-Volume Monochrome Printing
- ✔ Customers Who Prefer Genuine HP Consumables
Why Choose Genuine HP 45A Q5945A?
For customers continuing to operate an HP LaserJet 4345 MFP, the Genuine HP 45A provides the original toner specification intended for the printer.
Its approximately 18,000-page capacity makes it especially suitable for maintaining older high-volume HP equipment where reliability and minimising cartridge changes remain important.
What's Included?
- ✔ 1 × Genuine HP 45A Black Original LaserJet Toner Cartridge
- ✔ Manufacturer Part Number: Q5945A
- ✔ Approx. Yield: 18,000 Pages
Frequently Asked Questions (FAQ)
Is Q5945A a genuine HP toner cartridge?
Yes. This listing is for a Genuine HP Original LaserJet toner cartridge, not a compatible or remanufactured product.
What cartridge number is Q5945A?
Q5945A is the manufacturer part number for the HP 45A Black Original LaserJet Toner Cartridge.
How many pages does HP 45A Q5945A print?
The cartridge has an approximate yield of up to 18,000 pages. Actual yield varies depending on printing conditions and page coverage.
Does Q5945A fit the HP LaserJet 4345 MFP?
Yes. HP specifies the 45A Q5945A for the HP LaserJet 4345 MFP family.
Does it fit the HP LaserJet 4345x MFP?
Yes. The HP LaserJet 4345x MFP is compatible with Q5945A.
Does it fit the HP LaserJet 4345xm and 4345xs?
Yes. HP also lists the 4345xm MFP and 4345xs MFP as compatible with HP 45A Q5945A.
Does Q5945A fit the HP LaserJet 4350?
No. Although the model numbers are similar, HP specifies HP 42A / 42X toner cartridges for the LaserJet 4350 family. Q5945A is intended for the LaserJet 4345 MFP family.
Is this a colour toner cartridge?
No. Q5945A is a black toner cartridge for monochrome printing.
How many cartridges are included?
This listing includes one Genuine HP 45A Q5945A Black Toner Cartridge.
Is this suitable for high-volume printing?
Yes. With an approximate 18,000-page yield, Q5945A was designed for the high-volume departmental printing requirements of the HP LaserJet 4345 MFP platform.
OEM Code: Q5945A
Brand: HP
Duty Cycle: Approx. 18,000 pages
Includes Of:
1 x Genuine HP Q5945A Toner Cartridge 45A
1 x HP Q5945A Toner Cartridge 45A 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
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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.


