CP2025 going into "Cleaning..." process after printing just one page

[maestro3142]

Trying to help out my parents, who have a CP2025. It has worked without issues for many years. All four printer cartridges have recently been replaced (with genuine HP 304A cartridges). Initially, no problems. But now, whenever they try to print a document, only the first page is printed and then the printer display shows "Cleaning...". On one occasion, it also did calibration. But the cleaning doesn't seem to stop.

First time I tested their printer, there was a gap between the first page printing and the "Cleaning..." occurring, when it sounds like the printer was trying to pick up the next sheet of paper, but I may be wrong. After turning the printer off for a while and repeating, the printer went straight from first page being printed to "Cleaning..."

Does the pickup roller need replacing? Sticky solenoid? Something else? Any advice would be very helpful!

[Repairatrooper]

This is a fairly old machine and the foam noise bumpers on the solenoids break down over time and become sticky. This causes mis-timing issues as the solenoid stays open for more than 1 revolution of the drive. This causes the printer to think that it has printed onto the transfer belt directly and not on paper and then triggers a cleaning cycle. Pretty common error on older machines. Check YouTube as there will likely be a video there on how to locate, remove and clean the solenoids.