# SII PS Print Class Library

> SII PS Print Class Library (iPhone/iPad app by Seiko Instruments Inc..)

- Source: https://appshunter.io/ios/app/sii-ps-print-class-library/id980182499 (this page in markdown: same URL + `.md`)
- Developer: [Seiko Instruments Inc.](https://appshunter.io/developer/430532225)
- Category: Business, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: English
- Released: 2015-06-29
- Data updated: 2026-06-20
- User reviews in markdown: https://appshunter.io/ios/app/sii-ps-print-class-library/id980182499/reviews.md

## What is SII PS Print Class Library?

This app allows you to print text or barcode to Seiko Instruments Inc.'s(SII) printer using the Print Class Library provided by SII.
You can design your app smoothly while confirming the Print Class Library function.

App function
	•	API execution
	•	Text printing
	•	Barcode printing

Printer Models
	•	DPU-S245-01B
	•	DPU-S445-01B
	•	DPU-S245-01C
	•	DPU-S445-01C
	•	RP-E10-K3FJ2-B
	•	RP-E10-W3FJ2-B
	•	RP-E11-K3FJ2-B
	•	RP-E11-W3FJ2-B
	•	RP-D10-K27J2-B
	•	RP-D10-W27J2-B
	•	RP-E10-K3FJ1-E
	•	RP-E10-W3FJ1-E
	•	RP-E11-K3FJ1-E
	•	RP-E11-W3FJ1-E
	•	RP-D10-K27J1-E
	•	RP-D10-W27J1-E
	•	MP-B20-B02JK1
	•	MP-B30-B02JK1
	•	MP-B30-W02JK1
	•	MP-B30L-B46JK1
	•	MP-B30L-W46JK1
	•	MP-B21L-B46JK1
	•	MP-B21L-W46JK1
	•	RP-F10-K27J1
	•	RP-F10-W27J1
	•	RP-F10-K27J1-3
	•	RP-F10-K27J1-4
	•	RP-F10-K27J1-5
	•	RP-F10-W27J1-3
	•	RP-F10-W27J1-4
	•	RP-F10-W27J1-5
	•	SLP720RT-EK
	•	SLP720RT-WK
	•	SLP721RT-EK
	•	SLP721RT-WK
	•	SLP721RT-EW
	•	SLP721RT-WW
	•	MP-A40-B06JK3
	•	MP-A40-B06JK3U

Display Models
	•	DSP-A01-K1
	•	DSP-A01-W1

Interfaces
	•	WiFi(TCP/IP)
	•	Bluetooth
	•	USB(Type-C)


## Version history (last 5 releases)

### 3.11.0 — 2026-06-05

Added MP‑A40 to supported devices.

### 3.10.5 — 2025-05-13

Minor fixes.

### 3.10.4 — 2025-02-20

- Changes in specifications
       - Add printPDF method.
       - Supports alignment of barcode objects in label files.
       - Supports displaying the day of the week for date and time objects in label files.
       - Added a sample function for printPDF to the sample program.
       - Added a settings screen to the sample program.
- Bug Fixed
       - Fixed a bug where the paper width in the function settings for SLP72xRT can not get correctly
       - Fixed a bug in the font size fitting behavior of text objects in label files.
       - Fixed a bug in the sample program that caused duplicate printers to be displayed when discovering printers.

### 3.10.2 — 2024-12-13

Supports new label files (*.slex).
Improved label handling process.

### 3.10.1 — 2024-06-14

Added SLP721RT Bluetooth model to supported device.
Minor fixes.

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## More apps by Seiko Instruments Inc.

- [SII DPU-S Utility](https://appshunter.io/ios/app/sii-dpu-s-utility/id982214891)
- [SII RP Utility](https://appshunter.io/ios/app/sii-rp-utility/id983608952)
- [SII MP-A Print Class Library](https://appshunter.io/ios/app/sii-mp-a-print-class-library/id1141274287)
- [SII MP-A Utility](https://appshunter.io/ios/app/sii-mp-a-utility/id1141300626)
- [SII MP-B Utility](https://appshunter.io/ios/app/sii-mp-b-utility/id1214756002)

All apps by Seiko Instruments Inc.: https://appshunter.io/developer/430532225

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-20.*