- Printers
- Laser printer
30.01.02
HP 30.01.02 on a laser printer: scanner calibration error
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
The printer could not calibrate the scanner in the document feeder. Turn it off and on, run Calibrate Scanner from Device Maintenance, and if it fails again clean the glass and lid backing with a lint-free cloth.
Safety first
Stop and check this first
- Never spray water or glass cleaner directly on the glass: HP warns it can seep under it and damage the printer; do not use abrasives, acetone, benzene or ethyl alcohol.
Safe checks you can perform
- Power cycle
- Calibrate the scanner
- Clean glass and lid backing, then recalibrate
Leave these tasks to a qualified professional
- Do not attempt this professional task: Scanner diagnosis by HP
- Do not attempt this professional task: Check for dust under the glass
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Scanner diagnosis by HP
What they doIf calibration fails on clean glass, HP technical support performs additional troubleshooting on the scanner and document feeder.
They must show youthe calibration result before and after their work and a test copy.
In writingthe diagnosis, any part replaced with its reference and the date.
Check for dust under the glass
What they doHP notes that dust may appear on the underside of the glass and cannot be cleaned by the user; the technician confirms whether that is the cause.
They must show youwhere the dust was and a test copy afterwards.
In writingwhat was cleaned or replaced.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Power cycle
- Who:
- you, no tools.
- How:
- press the power button to turn the printer off, then back on.
- Result that matters:
- the printer starts without 30.01.02.
- If it clears:
- the failure was transient.
- If it returns:
- go on to calibration.
- Evidence to keep:
- photo of the code and the date.
Evidence: HP LaserJet Enterprise M4555 MFP and MFP M630 Printers - 30.01.02 Error
Calibrate the scanner
- Who:
- you, from the control panel.
- How:
- touch Device Maintenance, then Calibrate/Cleaning, then Calibrate Scanner, and follow the on-screen instructions.
- Result that matters:
- calibration completes without an error.
- If it completes:
- copy a test page to confirm.
- If it fails:
- go on to cleaning.
- Evidence to keep:
- note of the calibration result.
Evidence: HP LaserJet Enterprise M4555 MFP and MFP M630 Printers - 30.01.02 Error
Clean glass and lid backing, then recalibrate
- Who:
- you, with a soft lint-free cloth and water.
- How:
- turn the printer off and unplug it, open the lid and clean the feeder glass, flatbed glass, lid backing and the white or metal strip with the damp cloth (cleaner only on the cloth), dry them, then calibrate again.
- Result that matters:
- calibration completes after cleaning.
- If it completes:
- dirt was the cause.
- If it still fails:
- contact HP technical support.
- Evidence to keep:
- photo of the glass after cleaning and the calibration result.
Evidence: HP LaserJet Enterprise M4555 MFP and MFP M630 Printers - 30.01.02 Error
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Printers
- Brand
- HP
- Product type
- Laser printer
Known code variants
- HP 30.01.02
- HP 30.01.02 error calibración escáner
- HP 30.01.02 scanner calibration error
- HP M4555 30.01.02
- HP M630 30.01.02
What it means
On the HP LaserJet Enterprise M4555 MFP and MFP M630, HP defines 30.01.02 as a scanner calibration error: the printer could not calibrate the scanner within the document feeder. Calibration reads reference areas such as the white strip under the lid, so dirt on the glass or strip can upset it. HP's sequence is power cycle, calibrate, clean glass and lid backing, calibrate again, then contact HP. The code reports a failed calibration; it does not prove the scanner hardware is faulty.
Warnings and stop conditions
- Lowsource verified
Never spray water or glass cleaner directly on the glass: HP warns it can seep under it and damage the printer; do not use abrasives, acetone, benzene or ethyl alcohol.
Evidence: HP LaserJet Enterprise M4555 MFP and MFP M630 Printers - 30.01.02 Error
Symptoms and causes
Probable causes · in order
- Transient calibration failurePossible
HP's first step is turning the printer off and on. If the error does not return, it was transient.
Evidence: HP LaserJet Enterprise M4555 MFP and MFP M630 Printers - 30.01.02 Error
- Dirty glass, white strip or lid backingCommon
HP asks you to clean the document feeder glass, flatbed glass, lid backing and the white strip. If calibration passes after cleaning, dirt was the cause.
Evidence: HP LaserJet Enterprise M4555 MFP and MFP M630 Printers - 30.01.02 Error
- Calibration still failing when cleanLess common
If the error stays after cleaning and recalibrating, HP asks you to contact technical support for further steps.
Evidence: HP LaserJet Enterprise M4555 MFP and MFP M630 Printers - 30.01.02 Error
Virtual technician
Does 30.01.02 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
HP LaserJet Enterprise M4555 MFP and MFP M630 Printers - 30.01.02 Error
HP Support · official_doc
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