Interlock Switch
$15.00Add to cart
Series Support
HP Series Support
Support resources for HP Series large-format CO2 laser cutters and engravers, including the HP-2440, HP-3655, and HP-5598.
Series manuals & guides
Owner’s ManualDownload
Quick Start GuideDownload
One owner’s manual and quick-start guide cover every HP model — no need to pick your exact machine to download them.
HP quick fixes
Try these first.
Each quick fix includes a short explanation, a first action, and a guide when available.
Try this first
Laser Not Firing
Usually related to interlocks, power supply, or laser tube. Start with safety checks before assuming a failed component.
- Confirm lid, door, and water-protection interlocks.
- Run the interlock test and simplified resistor test.
- Document lights, sounds, and test results for support.
Try this first
Alignment Issues
Beam-alignment problems show up as weak cutting, uneven power across the bed, or visible path drift.
- Check mirror alignment from mirror one through the nozzle.
- Use the alignment tool when available.
- Verify focus after the beam path is corrected.
Try this first
Poor Engrave / Cut Quality
Quality issues are commonly tied to focus, lens condition, air assist, bed level, speed, power, or material condition.
- Clean the focal lens and mirrors.
- Confirm focus height and bed level.
- Test speed, power, frequency, and air-assist settings.
Guides & downloads
Support resources for the HP Series.
Step-by-step guide pages you can work at the machine.
Guide pageInterlock testing: laser not firing
Trace a no-fire condition through power supply, bypass, door sensor, chiller, and water flow.
Open guide →
Guide pageSimplified resistor test
Use the green test resistor to tell a power-supply problem from a laser-tube problem.
Open guide →
Guide pageMirror & beam alignment
Align mirror one through the nozzle, one mirror at a time, then confirm focus.
Open guide →HP Series model support
Choose your model.
The model page adds owner-facing tests and model-specific downloads for that exact machine.
HP-2440
Large-format HP support for setup, firing issues, alignment, focus, bed leveling, and cut-quality checks.
HP-3655
High-capacity HP support for larger-bed setup, motion checks, alignment, focus, and production consistency.
HP-5598
Full-size HP support for installation, pass-through workflows, alignment, focus, and maintenance.
Common questions
HP Series FAQs.
Which manual covers my HP machine?
One HP Series owner’s manual and quick-start guide cover the HP line. Download them from the top of this page; model pages add machine-specific tests and videos.
How do I align the mirrors on an HP laser?
Run the beam-path checks from mirror one through the nozzle, adjusting one mirror at a time and re-testing after each adjustment. Verify focus only after the beam path is correct.
One side of my engraving is lighter — what changed?
On a large bed this is almost always focus height or bed level. Confirm focus height with the gauge and level the bed front-to-back and side-to-side before adjusting power.
Still need help?
Contact Boss Laser technical support.
Include your HP model, serial number, photos or video, the material being used, settings, and which quick checks you completed.
Replacement parts
Replacement parts for the HP Series.
Fitment
105 parts map to the HP Series. 55 of them fit all 3 models — order any of those without knowing your exact machine. 41 can be bought right now; the rest are catalogued with correct fitment but not yet listed on the store.
The remaining 50 are model-specific — they scale with bed size or wattage. That is why this page hands off to a model page, and what the table below makes concrete.
Most commonly replaced
Power Supply — 155W
$397.00Add to cart
Control Card
$409.00Add to cart
Laser Tube — 155 Watt
$2697.30Add to cart
Air Compressor
$227.00Add to cart
Exhaust Tubing
$25.00Add to cart
Focal Lens (CO2 Standard)
Focal Lens (ZnSe PREMIUM)
Air Assist 2
Regulator (6mm Air Fitting (C))
$15.00Add to cart
Regulator (HP Oxygen Kit)
$147.00Add to cart
Control Panels & Cards 1
Control Panel
$269.00Add to cart
Drag Chain 6
Drag Chain End Link (500063)
Not available onlineRequest this part →
Drag Chain End Link (500064)
Not available onlineRequest this part →
Drag Chain End Link (500065)
Not available onlineRequest this part →
Drag Chain End Link (500066)
Not available onlineRequest this part →
Drag Chain End Link (500067)
Not available onlineRequest this part →
Drag Chain End Link (500068)
Not available onlineRequest this part →
Hardware & Fittings 1
Leveling Feet
Not available onlineRequest this part →
Lenses & Optics 17
Lens O-Ring
$0.22Add to cart
Nozzle (2″ Gen 5 LS & HP Non-Metal)
$13.50Add to cart
Nozzle (2.5″ GenV LS&HP Non-Metal)
$13.50Add to cart
Nozzle (4″ GenV LS&HP Non-Metal)
$13.50Add to cart
Lens Housing
$85.00Add to cart
Nozzle (2.5″ Metal Cutting)
$13.50Add to cart
Ceramic Insulator
$16.20Add to cart
Ceramic Holder
$45.00Add to cart
Mirror (1″ / 25.4 mm Mirror Premium)
$44.10Add to cart
Alignment Tool
$49.99Add to cart
Alignment Tool (Kit Target Refills (10 Pack))
$6.75Add to cart
Mirror (Mirror Removal Tool)
$1.50Add to cart
Nozzle (Removal Tool)
$2.50Add to cart
Mirror
Not available onlineRequest this part →
Beam Combiner
Not available onlineRequest this part →
Red Dot Laser Pointer
Not available onlineRequest this part →
Removal Tool
Not available onlineRequest this part →
Motors & Drivers 3
Driver (600067)
Not available onlineRequest this part →
Driver (600062)
Not available onlineRequest this part →
Z-Axis Motor
Not available onlineRequest this part →
Sensors & Switches 8
Proximity Sensor ((black GenV))
$15.00Add to cart
Proximity Sensor ((orange or green))
$15.00Add to cart
Flow Sensor
$15.00Add to cart
Switch
$50.00Add to cart
Key
$15.00Add to cart
E-Stop
$25.00Add to cart
Magnet
$5.00Add to cart
Gauge
$18.50Add to cart
Tubes & Power Supplies 3
Why the model matters
What changes by model.
These 50 parts cannot be ordered from the series page — each is specific to a model’s bed size or wattage. Pick your machine and its page shows the exact fit.
| Part category | HP-2440 Technical Support | HP-3655 Technical Support | HP-5598 Technical Support |
|---|---|---|---|
| Belts7 model-specific | 2 partscall to order | 2 partscall to order | 4 partscall to order |
| Cooling & Exhaust4 model-specific | 3 partsfrom $100.00 | 3 partsfrom $155.00 | 1 partfrom $155.00 |
| Drag Chain1 model-specific | 1 partcall to order | 1 partcall to order | — |
| Hardware & Fittings10 model-specific | 7 partscall to order | 7 partscall to order | 1 partcall to order |
| Hood, Door & Chassis1 model-specific | 1 partcall to order | 1 partcall to order | — |
| Linear Rails & Bearings10 model-specific | 4 partscall to order | 4 partscall to order | 4 partscall to order |
| Motors & Drivers6 model-specific | 5 partscall to order | 5 partscall to order | 1 partcall to order |
| Pulleys2 model-specific | 2 partscall to order | 2 partscall to order | — |
| Work Table9 model-specific | 3 partsfrom $16.00 | 3 partsfrom $18.00 | 3 partsfrom $20.00 |
“Call to order” means the parts are catalogued with correct fitment but not yet listed on the store — ask through the model page and support will quote them. Every cell is computed from the fitment map, not asserted.