SII PS Print Class Library
v2.3.4 · 983.8 KB · code 2030403
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File information
UpdatedJan 2, 2026
PublishedFeb 7, 2021
Packagecom.seikoinstruments.sdk.thermalprinter.SiiPsPrintClassLibrary
Versionv2.3.4 (2030403)
Size983.8 KB
MD599fd1380b3aa4afaa8ef73565301ff5f
Min SDK21
Malware scanTRUSTED
Signature SHA1D1:0A:CA:80:68:56:D7:88:C7:2F:69:A6:75:86:28:1C:DA:F1:B6:ED
SignerCN=Development Department, OU=Print System Division, O=Seiko Instruments Inc., L=Chiba, ST=Chiba, C=JP
Total downloads1,000
This version1,000
DeveloperSeiko Instruments Inc.
Age ratingEveryone
What's new in v2.3.4
Added label printing function to MP-B30L
Security scan
TRUSTED
- Developer signature verified 2026-01-02
- Signature SHA1 D1:0A:CA:80:68:56:D7:88:C7:2F:69:A6:75:86:28:1C:DA:F1:B6:ED
- File MD5 99fd1380b3aa4afaa8ef73565301ff5f
How to install SII PS Print Class Library v2.3.4 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 983.8 KB of free storage.
- Grab com.seikoinstruments.sdk.thermalprinter.SiiPsPrintClassLibrary_2030403.apk — hit the Download button above (983.8 KB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 99fd1380b3aa4afa…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.seikoinstruments.sdk.thermalprinter.SiiPsPrintClassLibrary_2030403.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Development Department, OU=Print System Division, O=Seiko Instruments Inc., L=Chiba, ST=Chiba, C=JP. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open SII PS Print Class Library — tap Open on the install screen, or find the SII PS Print Class Library icon in your app drawer.
Common install errors for SII PS Print Class Library
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android 5.0 Lollipop or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.