Replacement for RG1-4120: Drop-In Alternatives We Stock
Looking for a replacement for the RG1-4120 (RG1-4120 - HP ADF Door Open Sensor Assembly for LaserJet 4100MFP Printer)? Pro Disk Network ships HP drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the RG1-4120
| SKU | RG1-4120 |
|---|---|
| Product | RG1-4120 - HP ADF Door Open Sensor Assembly for LaserJet 4100MFP Printer |
| Current price | $126.68 |
| Stock status | In Stock |
| Detail page | View RG1-4120 › |
Drop-in replacements for RG1-4120
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
CB414-67904 - HP ADF Feed Roller Assembly Mounts in Center of the ADF Chassis for LaserJet M3027MFP Printer
SKU: CB414-67904
Price: $182.37
870138-001 - HP SPS-G2 Power Distribution Unit with Open/Close Door Sensor
SKU: 870138-001
Price: $439.41
RM1-8307-000 - HP Door Open Detection Switch for LaserJet Enterprise M601 / M602 / M603 Printer
SKU: RM1-8307-000
Price: $128.95
RM1-8307-000CN - HP Door Open Detection Switch for LaserJet Enterprise M601 / M602 / M603 Printer
SKU: RM1-8307-000CN
Price: $128.95
RM1-8307 - HP Door Open Detection Switch for LaserJet Enterprise M601 / M602 / M603 Printer
SKU: RM1-8307
Price: $128.95
IR4041K105NI - HP Open Sensor Assembly - 9200c / 9250c Digital Sender
SKU: IR4041K105NI
Price: $189.47
RG5-5646-000CN - HP Left Door Assembly Includes Face-up Delivery Assembly for HP LaserJet 9000 / 9000 Multi Function Printer
SKU: RG5-5646-000CN
Price: $308.95
RG5-5646-070CN - HP Left Door Assembly Includes Face-up Delivery Assembly for HP LaserJet 9000 / 9000 Multi Function Printer
SKU: RG5-5646-070CN
Price: $308.95
RG5-5646-050CN - HP Left Door Assembly Includes Face-up Delivery Assembly for HP LaserJet 9000 / 9000 Multi Function Printer
SKU: RG5-5646-050CN
Price: $308.95
RG5-5646 - HP Left Door Assembly Includes Face-up Delivery Assembly for HP LaserJet 9000 / 9000 Multi Function Printer
SKU: RG5-5646
Price: $308.95
RG5-5646-030CN - HP Left Door Assembly Includes Face-up Delivery Assembly for HP LaserJet 9000 / 9000 Multi Function Printer
SKU: RG5-5646-030CN
Price: $308.95
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.