Description

The HP LaserJet Envelope Feeder (L0H21A) is a genuine HP paper-handling accessory designed for compatible HP LaserJet Enterprise and Managed printers. It provides dedicated automatic envelope feeding for businesses that regularly print invoices, correspondence, statements, direct mail and other professional mailings.
With capacity for up to 75 envelopes, the L0H21A helps eliminate the need to repeatedly load envelopes manually through the printer's multipurpose tray. Compatible printer configurations can support up to two envelope feeders for a combined capacity of up to 150 envelopes.
✓ Genuine HP LaserJet accessory
✓ HP Part Number: L0H21A
✓ Dedicated automatic envelope feeder
✓ Holds up to 75 envelopes
✓ Up to two feeders supported on compatible configurations – 150 envelopes total
✓ Supports common business envelope sizes
✓ Compatible with HP LaserJet Enterprise M607–M612 Series
✓ Also supports selected HP LaserJet Managed E600/E601 Series printers
✓ Ideal for businesses with regular or high-volume envelope printing
Automate Business Envelope Printing
The HP L0H21A Envelope Feeder is designed to make regular envelope printing considerably more efficient. Instead of manually feeding envelopes individually or repeatedly reloading a multipurpose tray, businesses can load up to 75 envelopes into the dedicated feeder and process larger mailing jobs automatically.
This makes the accessory particularly useful for accounts departments, professional offices, government organisations, education, mailrooms and other environments that regularly produce addressed business envelopes.
Key Features
- Brand: HP
- Manufacturer Part Number: L0H21A
- Product Type: LaserJet Envelope Feeder
- Envelope Capacity: Up to 75 envelopes
- Maximum Configuration: Up to two envelope feeders / 150 envelopes on supported printer configurations
- Installation: Optional printer input accessory
- Application: Automatic business envelope printing
- Condition: Genuine HP accessory
75-Envelope Input Capacity
The L0H21A holds up to 75 envelopes, allowing users to complete larger envelope-printing jobs with considerably less manual intervention.
For organisations with particularly demanding mailing requirements, supported HP LaserJet configurations can accommodate two L0H21A Envelope Feeders, providing a combined capacity of up to 150 envelopes.
Compatible HP LaserJet Printers
HP specifies the L0H21A Envelope Feeder for the following HP LaserJet Enterprise printer families:
- HP LaserJet Enterprise M607 Series – including M607n and M607dn
- HP LaserJet Enterprise M608 Series – including M608n, M608dn and M608x
- HP LaserJet Enterprise M609 Series – including M609dn, M609dh and M609x
- HP LaserJet Enterprise M610 Series
- HP LaserJet Enterprise M611 Series – including M611dn and M611x
- HP LaserJet Enterprise M612 Series – including M612dn and M612x
The L0H21A is also supported by selected HP LaserJet Managed E60055, E60065, E60075, E60155, E60165 and E60175 Series printers.
Looking for a printer or replacement machine? Browse our HP Laser Printer range for current HP LaserJet models.
You can also browse our complete HP Printers, Toner & Accessories range for related HP printing products.
Compatibility Note: Printer configurations can vary by region and exact model suffix. Please confirm your complete HP printer model before ordering this accessory.
Supported Envelope Sizes
The optional HP envelope feeder supports a broad selection of common business envelope formats, including:
- Envelope #9
- Envelope #10
- Envelope Monarch
- Envelope B5
- Envelope C5
- Envelope C6
- Envelope DL
- Compatible custom envelope sizes
HP specifies a custom media range of approximately 90 × 178 mm to 160 × 254 mm for the optional envelope feeder.
Designed for High-Volume Business Mailings
The L0H21A is especially useful for organisations that regularly print batches of addressed envelopes. By providing a dedicated envelope input source, normal paper can remain loaded in the printer's standard paper trays while envelopes are handled separately.
This allows users to switch between standard office documents and envelope jobs more efficiently without continually unloading and reconfiguring the main paper supply.
Product Specifications
| Brand | HP |
| Product | HP LaserJet Envelope Feeder |
| Part Number | L0H21A |
| Product Type | Optional Envelope Input Feeder |
| Input Capacity | Up to 75 envelopes |
| Maximum with Two Feeders | Up to 150 envelopes on supported configurations |
| Custom Media Range | Approx. 90 × 178 mm to 160 × 254 mm |
| Dimensions (W × D × H) | Approx. 426 × 466 × 148 mm |
| Weight | Approx. 5.8 kg |
| What's Included | HP Envelope Feeder and Hardware Installation Guide |
| Condition | Genuine HP Accessory |
Ideal For
- Accounts and billing departments
- Corporate mailrooms
- Legal and professional services
- Government departments
- Schools and universities
- Medical and healthcare administration
- Businesses sending invoices and statements
- Organisations with regular bulk envelope-printing requirements
Why Add a Dedicated Envelope Feeder?
For occasional envelope printing, manually loading a multipurpose tray may be sufficient. For businesses printing envelopes regularly, however, a dedicated feeder can substantially reduce handling and interruptions.
The L0H21A lets users maintain a supply of envelopes ready for printing while other paper trays remain configured for standard documents. This is especially useful in shared workgroup environments where the printer handles several different types of jobs throughout the day.
Related HP Paper Handling Accessories
Compatible HP LaserJet Enterprise M607–M612 printers also support additional paper-handling accessories such as the HP L0H17A 550-Sheet Paper Feeder and HP L0H18A 2,100-Sheet High-Capacity Input Feeder with Stand, depending on the printer configuration.
Browse our HP range for available printers, paper-handling accessories, genuine HP toner cartridges and other supplies.
Frequently Asked Questions (FAQ)
What is HP L0H21A?
The HP L0H21A is a dedicated optional envelope feeder for compatible HP LaserJet Enterprise and Managed printers. It allows envelopes to be automatically fed into the printer rather than manually loaded individually.
How many envelopes does the L0H21A hold?
It holds up to 75 envelopes.
Can I install two envelope feeders?
Yes, supported HP LaserJet configurations can use up to two L0H21A envelope feeders, providing a combined capacity of up to 150 envelopes.
Does L0H21A work with the HP LaserJet Enterprise M607?
Yes. HP specifies the envelope feeder for compatible M607 Series models, including the M607n and M607dn.
Does it work with the HP M608 and M609?
Yes. L0H21A supports compatible HP LaserJet Enterprise M608 and M609 Series printers.
Is L0H21A compatible with the newer M610, M611 and M612?
Yes. HP's installation documentation specifies the envelope feeder for the LaserJet Enterprise M610, M611 and M612 Series as well as the earlier M607–M609 generation.
Does it support DL envelopes?
Yes. HP lists DL among the supported envelope sizes, along with #9, #10, Monarch, B5, C5 and C6.
Can I use custom-size envelopes?
Yes. HP specifies compatible custom sizes from approximately 90 × 178 mm to 160 × 254 mm.
Is this a paper tray?
No. Although it installs as an optional input accessory, L0H21A is specifically designed for envelope feeding. Customers needing additional standard paper capacity should consider the appropriate HP paper feeder instead.
Does the listing include the printer?
No. This listing is for one HP L0H21A Envelope Feeder accessory only. The printer is sold separately.
HP Envelope Feeder - Envelope, Plain Paper - Custom Size 88.90 mm x 160.02 mm, Custom Size 177.80 mm x 254 mm
Increase flexibility by providing additional input capacity and reduce printer interaction by eliminating manual envelope loading with the HP LaserJet Envelope Feeders.Medium or large businesses who need to streamline business mailings and print professional looking envelopes.Features
Help improve productivity and reduce printer interaction by eliminating the need to manually load envelopes.
Simplifying business mailings by printing envelops quickly and efficiently with this feeder that holds 75 envelopes.
Add two HP Envelope Feeders and print up to 150 professional looking envelopes at a time.
| Compatibility |
HP LaserJet Enterprise Printers:
|
| Additional Warranty Information |
Return to HP - Parts Only |
| Weight (Approximate) | 5.81 kg |
| Height | 147.3 mm |
| Width | 424.2 mm |
| Depth | 464.8 mm |
| Media Size | Custom Size - 177.80 mm x 254 mm |
| Custom Size - 88.90 mm x 160.02 mm | |
| Media Type | Plain Paper |
| Envelope | |
| Total Media Capacity | 75 |
| Product Type | Envelope Feeder |
| Manufacturer Part Number | L0H21A |
| Manufacturer Website Address | http://www.hp.com/au/ |
| Manufacturer | HP Inc. |
| Product Name | LaserJet Envelope Feeder |
| Brand Name | HP |
Last Updated Date: 16 September 2026

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