The short answer
Update when a trusted source documents a relevant fix, compatibility change or security issue, or when a supported OS change requires it. A working printer does not automatically benefit from every new package.
Where this applies
This concerns computer-side printer drivers and applications, not firmware. A network failure, empty cartridge or paper jam needs separate diagnosis before changing software.
Identify the right device and prepare
Record the exact printer model, OS release, current package or queue type, symptoms and the last known working state. Check the manufacturer's support page and release notes for the intended OS.
Work through the checks in order
If a printer began failing after an OS upgrade and the manufacturer lists a driver for that release, the update has a plausible purpose. A printer with a broken USB cable does not.
- Reproduce the problem with a small test job and rule out selected queue, connection, paper and device-panel errors.
- Read the official package description and release notes for a change that matches the symptom or supported system version.
- Prepare a rollback route: note the working package, keep an official installer if available, and consider a system restore option according to your OS and policy.
- Install only a supported package with the manufacturer's instructions, then repeat the same test and compare output.
Expected result and next branch
A relevant update resolves the specific failure without changing unrelated capabilities. Document both the old and new behavior, not merely the displayed version number.
If no release note addresses the issue, retain a stable setup and investigate connection or settings. If the new package causes a regression, consult the recovery guide and official support.
Safety and limits
Do not install packages from sites that imitate manufacturer support. Update decisions on managed computers may belong to an administrator.