On Feb 19, 4:03 pm, Tony Hwang wrote:
Hi,
UPS comes in many shapes and forms. Battery, CVT, Invertor, Electronic
regulator, etc

Author is not talking about a $500 or $1000+ UPS to address light
dimming from a laser printer. Other plug-in 'solutions' that might be
implemented are even more expensive. Still that UPS would only cure a
symptom. Symptom that may also be related to a potential human safety
problem. Fix the problem. It's cheaper. It's safer. A UPS will not
solve the problem. At best, a UPS can only cure symptoms. Laser
printer must not cause oscillating light dimming. More symptoms of a
correctable wiring problem - more likely a simple and inexpensive
solution - a loose wire connection.

Most UPSes are less than $200 types. Computer grade UPSes that can
even contribute to damage of small electric motors - and again are no
solution to a wiring problem. Even a voltage regulator will cause
increase current - even worse light dimming. Still does not solve
the problem.

Any discussion of a plug-in solution should have been terminated up
front. Wiring problem is probably a loose connection. Fix the
problem; do not cure symptoms.