– Latches the IC off if the voltage exceeds safe thresholds, protecting secondary circuits from voltage spikes. 3. Internal Block Diagram and Key Features

The STR-Z2062 is a Sanken Electric pulse width modulation (PWM) power management IC commonly utilized in the power supply units of older HP LaserJet (M1005, M1120) and Canon LBP1210 printers. Available in SIP-15 or ZIP-13 packages, it serves as a high-efficiency switching regulator featuring built-in power MOSFETs and protection functions. Technical details and specifications can be found at Jotrin Electronics Jotrin Electronics

The chip initiates when a specific voltage (VCC) is supplied to

Power supplies are the most common failure point in older laser printers. Power surges or simple wear and tear can cause the internal power switch—the STR-Z2062—to burn out. Symptoms often include a completely dead printer or a status light that flickers but never fully powers up. The Technical Fix