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I have a MP 7503 in a school that has been stopping during print or copy jobs randomly throughout the day and saying "Please wait, Warming Up". After 5-10 min the machine will continue and finish the job. It does not log any SC codes either. I have updated the firmware, checked over the fuser, changed thermistors, and double checked all setting in user tools. I am at a loss here. Any suggestions?
The machine has under 350K and otherwise is working great.
"Heavy music to the normal ear is nothing but a loud annoyance. Most people think of it as obnoxious, talentless music but to someone who really listens and is really in love with music knows how beautiful and amazing it can be" Tommy Rogers of Between The Buried and Me"
One if the 3 fusing lamps might be bad or disconnected.
Absolutely. I had it on other brand and this was due to either - bad fuser lamp, bad/corrupted HDD, trying to add toner wrongly judged. .Originally Posted by slimslob
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Agreed with Slimslob. Take fuser unit out and check lamps. Also check thermistors and upper fuser roller/hot roller.
Also as the other Tech said, might be hard drive. Update firmware, check controller and hard drive.
[QUOTE = KeviM; 1932081] Đồng ý với Slimslob. Lấy bộ nhiệt áp ra và kiểm tra đèn. Đồng thời kiểm tra các điện trở nhiệt và con lăn nhiệt áp trên / con lăn nóng.
Cũng như các Tech khác đã nói, có thể là ổ cứng. Cập nhật chương trình cơ sở, kiểm tra bộ điều khiển và ổ cứng. [/ QUOTE]
test id sensor drum
thermistors maybe not making full contact with hot roller???or they could be covered in built up toner...... impeding the transmission of heat to the thermistor.. just spit balling tbh
Remember the 03 thermistors are different to all the others ie mp7500/1/2 also the hot roller would be due at 350k to be replaced
Regards Mark
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I would not like to go too far with the imagination, try to change the hdd, so much is a fast operation, otherwise I would opt for the psu or the card that powers the fuser lamps, whose high frequency transformer does not work properly (less power = more time )
....I do not know? maybe a cold solder on some psu-connector?
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