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Manual acquired with good resolution, complete in all its pages, very good policy of the folder where are saved all products purchased.
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Service manual very complete and clear. It was very helpfull for my work.
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This is the 2nd time I download manuals from this website and I can say it's what I was expecting. It contains schematic, layout (decent quality), short description, parts and dissasembly instructions. I recomend it for anyone who wants to repair/modify this device.
IMAGE FUSING
1 August 1996
7.6 FUSING TEMPERATURE CONTROL
(° C ) 200 180 165 150
100
50
M a in S W O N
S ta n d by
A193D525.wmf
When the main switch turns on, the CPU checks the ac frequency for 500 ms. Then the CPU turns on the fusing lamp. When the thermistor detects the stand-by temperature (165 °C), the machine can start to print. When the thermistor detects the operating fusing temperature (180 °C), the CPU maintains this temperature using phase control. Phase control is the only type of fusing control in this machine.
7.7 OVERHEAT PROTECTION
If the hot roller temperature becomes greater than 230°C, the CPU cuts off the power to the fusing lamp. At this time, SC543 will be generated. Even if the thermistor overheat protection fails, there is a thermofuse in series with the common ground line of the fusing lamp. If the temperature of the thermofuse reaches 169°C, the thermofuse opens, removing power from the fusing lamp. At this time, the copier stops operating.
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