Because the program is unofficial, you must exercise caution. However, the M1170 is supported by several well-regarded utilities in the printer community:

Before you proceed with any download, there are non-negotiable safety steps and technical details you must understand:

The Epson M1170 Adjustment Program is strictly used for physical calibration, mainboard initialization, and layout alignments. Top Features of the Epson M1170 Service Program

When downloading from third-party sites, use an antivirus scanner to check the files before opening them, as these tools can be targeted by malicious actors.

Resets the "Service Required" error 1.2.5 .

Sites like or InkJetService.com provide paid but guaranteed clean downloads. Prices range from $9 to $15. This is recommended for business users who cannot risk malware.