Name: 4DigitalBooks DL-mini
Brand: 4DigitalBooks

Overview

The DL-mini is an automatic book scanner from the Swiss company 4DigitalBooks; the manufacturer calls it a tool for mass digitization of books. The scanner turns pages and scans books, magazines, registers, and bound newspapers by itself, copes with small books that close on their own, and does not require an operator to be present. In manual mode, the same machine is used to scan photo albums, notebooks, postcards, and manuscripts, as well as loose sheets, inserts, and fold-outs.

The page is picked up by an arm with distributed vacuum and turned by air flow; the air-cushion cradle puts neither pressure nor tension on the spine, and the book opens to 180°. On its own, the scanner centers the book, detects its size, recognizes multi-feeds, and retries. The E-400 model is equipped with a 71 MP i2S EAGLE camera (300 and 400 dpi), and the E-600 with a 156 MP i2S EXTRA camera (300, 400, and 600 dpi).

Applications

Mass digitization of books
Books, magazines, registers, bound newspapers
Photo albums, notebooks, manuscripts — in manual mode
Libraries and digitization service providers

Features

Automatic and manual modes in one scanner
Page turning by air flow and an air-cushion cradle — no pressure or tension on the spine
Page pickup by distributed vacuum on an arm, book holding by vacuum on plates
Automatic multi-feed detection and retry: always one page at a time, no skipped pages
Automatic book centering by the cradle, detection of book size and page width
Pages are scanned under a glass plate (contact only) or without glass; 180° opening angle — text at the spine is fully visible
Book parameters are saved as presets
Paper of any thickness, texture, and porosity: paper weight 20–200 g/m², wavy pages with an amplitude of up to 10 mm
Designed for round-the-clock 24/7 operation; no operator presence required
According to the manufacturer, 90% savings in operator time, no glare on glossy paper, no shadows in the gutter, and no curved text

Models and versions

DL-mini E-400

Single 71 MP i2S EAGLE camera, optical resolution of 300 and 400 dpi.

DL-mini E-600

Single 156 MP i2S EXTRA camera, optical resolution of 300, 400, and 600 dpi.

Specifications

Parameter	4DigitalBooks DL-mini E-400	4DigitalBooks DL-mini E-600
Scanning
Modes	Automatic and manual E-400 and E-600
Scan area	max. 600 × 420 mm E-400 and E-600
Operating mode	24/7 E-400 and E-600
Optics and camera
Digital camera	one, i2S EAGLE, 71 MP	one, i2S EXTRA, 156 MP
Optical resolution	300, 400 dpi	300, 400, 600 dpi
Color depth	24-bit (16 million colors) E-400 and E-600
Documents
Documents (automatic mode)	books, registers, magazines, bound newspapers E-400 and E-600
Documents (manual mode)	photo albums, stamp albums, spiral and bound notebooks, postcards, photos, manuscripts; loose sheets, inserts, fold-outs, bent and torn pages, covers E-400 and E-600
Book types	remaining open and closing spontaneously E-400 and E-600
Page size	from A6 (105 × 148 mm) to A3 (297 × 420 mm) E-400 and E-600
Max. book weight	10 kg E-400 and E-600
Max. book thickness	100 mm E-400 and E-600
Book covers	soft and rigid E-400 and E-600
Paper weight	20–200 g/m² E-400 and E-600
Wavy pages and covers	amplitude up to 10 mm E-400 and E-600
Opening angle	180° — text at the spine is fully visible E-400 and E-600
Page-turning process
Book centering	automatic, by the cradle E-400 and E-600
Book holding	by distributed vacuum on the plates E-400 and E-600
Page pickup	by distributed vacuum on the arm E-400 and E-600
Page flattening	page under glass (contact only) or without glass E-400 and E-600
Automatic detection	page width, multi-feed E-400 and E-600
Safety	monitoring of page pickup and release, and of page bending E-400 and E-600
Automatic retry	in case of multi-feed or missed page pickup E-400 and E-600
Power supply
Voltage	115–230 V E-400 and E-600
Power	2.2 kVA E-400 and E-600
Frequency	50–60 Hz E-400 and E-600
Dimensions and weight
Dimensions (L × W × H)	1.8 × 1.2 × 2.0 m, installed on a table E-400 and E-600
Weight	275 kg E-400 and E-600