Our take
The base HP LaserJet M4345 MFP, product CB425A, is a fast monochrome print, copy, and digital-send platform for heavy office work. HP rates it up to 45 pages per minute, recommends 5,000–20,000 pages per month, and lists a flatbed plus a 50-sheet ADF. The base product is network-ready, while wireless requires separate hardware. Fax and automatic print duplex are not standard confirmed features of CB425A; HP associates them with higher X/XS variants or optional accessories.
An enterprise workflow that needs a wired, high-volume mono copier/scanner and can verify accessories, software, and the exact base configuration..
Do not choose the base CB425A if fax or standard automatic duplex is required without confirming the exact variant and included hardware.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- A 45 ppm rating and 5,000–20,000 page recommended range target a high-volume monochrome environment.
- The flatbed and 50-sheet ADF support single pages and a stack of originals for copy or digital-send tasks.
- The base model is network-ready, while the saved source distinguishes optional wireless and variant-specific features.
What to weigh up
- Automatic print duplex is an optional accessory rather than a confirmed base CB425A feature.
- Fax is documented for X/XS variants but not established for the base product reviewed here.
- The model is discontinued; current condition, add-on parts, software, service, and supplies are unknown.
The key details
| Model covered | M4345 MFP |
|---|---|
| Main functions | Print, copy, and digital send; base fax status unconfirmed |
| Print output | Monochrome laser; up to 45 ppm |
| Two-sided printing | Network-ready; flatbed and 50-sheet ADF; duplex optional |
Performance figures are manufacturer claims. Source checked October 4, 2026. Regional models and included accessories can differ.
What the features mean for you
The base product number anchors the comparison
HP identifies the M4345 MFP base configuration as product CB425A. This is a large multifunction platform for print, copy, and digital send, not a compact personal printer. The family also includes X and XS variants, and the saved technical reference assigns some features to those higher configurations rather than to the base. That distinction prevents an attractive listing title from transferring an optional or variant-specific capability to the CB425A. Check the full product number and the accessory inventory before considering the machine for an office workflow.
Fast output with a high recommended workload
HP rates the M4345 up to 45 pages per minute and lists a recommended monthly volume of 5,000 to 20,000 pages. Those figures describe an enterprise use case with much more sustained work than a home or personal desk. The maximum duty cycle is not the recommended workload and should not be substituted for the published range. A buyer should compare expected volume with the recommendation and the machine's service history. A used unit's actual performance and remaining life cannot be inferred from a specification sheet or headline speed.
The document feeder broadens scan and copy work
HP specifies a flatbed and a 50-sheet automatic document feeder for the M4345. The glass supports single pages and material that should not be fed, while the ADF can move a stack through copy or digital-send tasks. The saved packet does not establish duplex scanning, so do not assume that the feeder automatically captures both sides. Likewise, a 50-sheet capacity is not evidence of a particular scan rate. Verify the exact required document workflow on an operational machine before relying on it for a department.
Fax and duplex depend on the exact configuration
The base CB425A is not documented as including fax in the saved model mapping; HP associates fax with X/XS variants. Automatic print duplex is optional for the base configuration. This matters because a model-family page or a reused listing title may combine several M4345 variations. The profile leaves fax unknown, rather than false or true, and treats the base unit as lacking a standard duplexer. If a workflow requires either feature, confirm an exact variant or show that the required accessory is installed and included.
Network-ready does not mean wireless-ready
HP describes the base M4345 as network-ready. Wireless networking requires a separate accessory, so built-in Wi-Fi is not counted. The exact wired port detail should be verified on the product documentation and the unit itself; a broad network-ready phrase should not be mistaken for every connection type. A large office may prefer a wired shared deployment, while a buyer expecting direct wireless use will need confirmed hardware. The model's size, paper path, and environment also make placement and host compatibility important practical checks.
Discontinued status makes service planning part of fit
HP marks this product discontinued. That does not by itself determine whether a specific machine can operate, but it makes present-day software compatibility, parts, consumables, and service availability important unknowns. The historical ASIN B000VZ3LZU is not used as proof of the base configuration or a current offer. Search by the exact CB425A product number and ask for a configuration list, page count, accessory inventory, demonstration, and return terms. A high-volume machine is a poor choice if the buyer cannot support its intended duty in the current environment.
What else to compare
Compare a base configuration with a current exact product number if duplex or fax is mandatory, and verify that its accessories are actually included.
Before you buy
Does the base CB425A include fax?
The saved HP variant reference assigns fax to X/XS configurations; fax is not established for the base CB425A reviewed here.
Is automatic duplex standard on the base M4345?
No. HP lists automatic print duplex as an optional accessory for the base configuration.
What workload does HP recommend?
HP publishes a recommended monthly range of 5,000 to 20,000 pages for the M4345 platform.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- HP LaserJet M4345 product page ↗ — checked October 4, 2026.
- HP M4345 base product identity and CB425A number ↗ — checked October 4, 2026.
- HP M4345 model specifications and supported features ↗ — checked October 4, 2026.
- HP M4345 technical reference, p. 14, base and variant feature table ↗ — checked October 4, 2026.
- HP printing selection guide, M4345 base/X/XS feature distinctions ↗ — checked October 4, 2026.
The decision
The M4345 base is compelling only for a high-volume mono print/copy/scan workflow that can manage variant and accessory details. Fax and automatic duplex must be verified separately.
Is it the right fit?
Check the exact model and today’s offers on Amazon.