How to scan a passport on an office MFP without losing detail

TutorialScan workflowIdentity9 min read

Scanning a passport for identity verification or visa applications produces a digital file with the photograph, document number, and machine readable zone (MRZ) at the bottom. The default scan settings on most office MFPs produce a file that fails OCR on the MRZ and renders the photograph too dark. Six adjustments produce a scan that passes every reasonable verification check.

The seven step workflow

Lift the document feeder and clean the scanner glass

Dust on the glass shows up clearly on passport scans, especially in the photograph zone. A quick wipe with a lint free cloth before scanning saves a reshoot.

Place the open passport face down on the glass

The photograph page sits against the glass. Open the passport fully and let it relax to a natural angle. Align the photograph page with the corner registration mark.

Set scan resolution to 600 DPI

400 DPI loses detail in the MRZ characters at the bottom of the passport. 600 DPI captures enough resolution for OCR to read the MRZ correctly. Higher resolutions add file size without improving the scan.

Set colour mode to "Colour"

Black and white loses the photograph detail and the security features. Greyscale loses some MRZ detail. Full colour captures everything needed for verification, at modest file size penalty.

Set original type to "Mixed" or "Photo and Text"

The passport contains both photographic content and printed text. Mixed mode balances exposure between the two. Pure Photo or pure Text mode produces one element correctly and the other poorly.

Set scan area to passport size, not full A4

Use custom scan area or "Auto detect document edges" to capture only the passport area rather than the full A4 region. This eliminates the dark border that produces poor file compression and confuses subsequent OCR processing.

Scan to PDF with OCR enabled

Scan to PDF produces a single file ready for email or upload. OCR enabled embeds searchable text, allowing systems that read passport data automatically to extract the MRZ and document number without manual entry.

Why MRZ readability matters

The machine readable zone at the bottom of the passport contains the document number, name, date of birth, expiry date and check digits encoded in a specific format. Identity verification systems read the MRZ to confirm passport authenticity and extract data without typing errors.

A scan where the MRZ is blurred or partially readable fails automated verification, forcing the receiving party to read the data manually. Resolution at 600 DPI and correct exposure usually solves this.

Settings that affect the MRZ specifically

Setting	Default	Recommended for passport
Resolution	200 to 400 DPI	600 DPI
Colour mode	Auto or BW	Colour
Auto exposure	On	Off, manual at default
Original type	Text	Mixed or Photo and text
Compression	High	Medium or Low
OCR	Off	On

Passport scans carry the same sensitivity as the original document.Store scans only in encrypted form, transmit only over encrypted channels, and delete promptly when the verification purpose completes. Plain email attachment of passport scans is a privacy and security risk.

For verification with banks or government services

Banks, immigration consultants and government services that accept passport scans usually publish specific requirements: minimum resolution (typically 300 DPI for visual inspection, 600 DPI for automated verification), file format (PDF or JPEG), colour requirement, and maximum file size (often 2 to 5 MB). Read the requirements before scanning to avoid mismatched output.

If the destination system rejects the scan, check three things.File size first (compress further if too large). Format second (convert PDF to JPEG or vice versa). Resolution third (rescan at the required DPI if lower than required). These three account for nearly all rejection cases.

Volume thresholds

Office MFP passport scanning suits single or occasional passport scans. For organisations that verify passports at scale (banks, immigration consultants, international HR teams), dedicated passport readers with MRZ scanning and chip reading capability produce faster, more reliable results. The office MFP route remains the right tool for occasional needs.