Functional Overview
The printer exits SleepMode and all of the lights power on when any of the following occur:
∙ A job is received.
∙ The Front Panel Button is pressed. ∙ The printer front door is opened.
The printer will not enter SleepMode if there is a printer error.
High Voltage Power Distribution
The High Voltage Power Supply PCA applies an overlap of DC and AC voltage to the primary charging roller and the developing roller. This circuit also applies a positive or negative DC voltage to the transfer charging roller according to the instructions from the CPU on the DC Controller PCA.
This circuit also controls the image density by changing the primary AC voltage and the developing AC bias according to the setting of the print density dial.
High voltage is disabled when the printer’s EP Door is open (i.e., switch SW101 is open).
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Functional 5 Overview
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