Question about Lexmark X4270 All-In-One InkJet Printer
I have replace LOT(eht)but same complants. abnormal brightness,how to memmory reseting,bright moving low high,did not dry soldering,
To start with , its not a printer, its a monitor
secondly its not a lot its a l.o.p.t. or line output transformer.
thirdly setting brightness is done by varying the ht on the lopt itself -there should be 2 presets - 1 controls focus the second brightness
Posted on Nov 18, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
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H4 = Low Heat Roller Temperature Detection.
Heater lamp abnormality
Control PWB abnormality
Try resetting the error code using the following sequence....
Press #,Interrupt,C,Interrupt Then press 14, Start Button.
Hopefully the machine should now come to ready. If not check the heater unit for paper jams that could be blocking the thermistor or thermostat. The thermostat may have a small button on the back, try pressing this in. (it pops out if it detects overheat).
Otherwise it's likely to be the Heat Lamp that requires replacing.
Hope this helps
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