Konica Minolta magicolor 1600W Service Manual - Page 89
Warm-up control, Control start timing, Control termination timing, Control start decision, Wait
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magicolor 1600W magicolor 1650EN 16. Fusing section Theory of Operation Ver. 1.0 Nov. 2008 A. Warm-up control Control is provided until the Fusing roller reaches the predetermined level. B. Control start timing • The power switch is turned ON. • A malfunction or media misfeed is reset. • The main body leaves the power save mode. • A door is closed. C. Control termination timing • The Fusing roller reaches a predetermined temperature. • A malfunction or media misfeed is reset. • A door is opened. D. Control start decision • Either of the following two control start decisions is made according to the temperature detected by the temperature/humidity sensor. The fusing temperature during the print cycle varies depending on the type of the start control carried out, either low temperature start control or ordinary start control. Control start decision Low temperature start control Ordinary start control Environment upon start The temperature/humidity sensor detects a temperature lower than the predetermined value. The temperature/humidity sensor detects a temperature equivalent to, or higher than, the predetermined value. 16.3.2 Wait control • Control is provided to ensure that the temperatures at different parts of the fusing unit reach a constant level during the wait state. A. Control start timing • At the end of the warm-up control • At the end of the post-print cycle control (print start control) B. Control termination timing • The front cover is opened and closed. • A malfunction or media misfeed occurs. COMPOSITION/ OPERATION 62