Introduction¶
About SII SLP800 Series Print Class Library¶
SII SLP800 Series Print Class Library provides SLP800 Series printers with the function to print texts, images, and barcodes.
Development Environment¶
- iOS (Xcode)
- Android (Android Studio)
- .NET MAUI (Visual Studio)
Applicable Products¶
| Model (Interface) |
SLP850BT (Bluetooth) |
SLP850 (USB) |
SLP850SE (Serial) |
|---|---|---|---|
| iOS | ✓ | - | - |
| Android | ✓ | ✓ | - |
Supported operating systems¶
iOS
- iOS 17 to iOS 17.6.1
- iOS 18 to iOS 18.7.1
- iOS 26 to iOS 26.1
iPadOS
- iPadOS 17 to iPadOS 17.6.1
- iPadOS 18 to iPadOS 18.7.1
- iPadOS 26 to iPadOS 26.1
Android
- Android 10.0 to Android 16.0
Note
For the latest information, please contact us.
Terms¶
| Terms | Description |
|---|---|
| Printer command | Command for controlling the printer described in "SLP850 SERIES SMART LABEL PRINTER TECHNICAL REFERENCE". |
Supported Paper and Names in This Manual¶
The supported paper by the SII SLP800 Series Print Class Library and their names in this manual are listed below.
When referring to the entire paper, the term "paper" is used.
| By type | By function | Support |
|---|---|---|
| Non-adhesive tags | Marked paper | ✓ |
| Linerless label | Paper without mark | ✓ |
| SLP Label | Marked paper | ✓ |
Precautions¶
See below for precautions regarding SII SLP800 Series Print Class Library.
- A concurrent connection from multiple apps to one printer is not supported when multiple apps are worked simultaneously by Multitasking on iPad with iPadOS.
Development of Application for iOS¶
To register the application that communicates with the printer through Bluetooth or USB to App Store, the pre-application to Apple from SII is necessary. For details, please contact SII.
Printer Settings¶
Set the memory switches of the printer to [Value] in the following table when using the library.
| MS | Function | Value |
|---|---|---|
| 1-1 | Mark Mode Selection (Mark Mode) |
0 : Enable 1 : Disable |
| 1-2~3 | Thermal Paper Selection (Thermal Paper) |
00B : Non-adhesive tags 01B : Linerless label 10B : SLP Label 1 11B : SLP Label 2 |
| 3-1 | iOS Auto Connection Selection (iOS Auto Connection) |
0 : Enable 1 : Disable |
MS 1-1
Set this setting to "Enable" when using the Non-adhesive tags or SLP labels.
Set this setting to "Disabled" when using the linerless labels.
MS 1-2~3
Set this setting to "Non-adhesive tags" when using the Non-adhesive tags.
Set this setting to "Linerless label" when using the linerless labels.
Set this setting to "SLP Label 1" when using the SLP labels.
When you want to make the printing lighter, set it to "SLP Label 2."
MS 3-1
When using resetPrinter on an iOS device, select "Enable".
Note
- The printer memory switches can be set "SLP800 Series Printer Utility". That can be obtained by App Store (for iOS) or Goocle Play Store (for Android).
- See "SLP850 SERIES Smart Label Printer USER'S GUIDE" for details about the memory switches and the factory default settings.
About This Documentation¶
Document Information¶
Last updated: February 2026
Document Ver.2 Rev.1
Terms of use / Disclaimer¶
- Unauthorized reproduction, copying, or redistribution of this document is prohibited.
- SII reserves the right to make changes without notice to the specifications and materials contained herein and shall not be responsible for any damages (including consequential) caused by reliance on the materials presented, including but not limited to typographical, arithmetic, or listing errors.