Home |
Search |
Today's Posts |
|
Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to sci.electronics.repair
|
|||
|
|||
HP DeskJet 500
Our church has one of these printers that has worked well for a long time.
It now doesn't. Upon turning on the power, it appears to go through the power up testing, but then when trying to move the head, it powers down. I have checked and watched the power supply and I suspect that it's being told to turn off. I checked ESR on all the electrolytics, and all appear to be fine. I can move the head to the middle, and upon powering up, it will take it home, but then shut down once it gets there. I measured about 5v across the head motor, so I pulled it out and put 5v to it. It does run, but not very smoothly, and sometimes doesn't want to start very well. I don't know if this motor has brushes or not, but it feels like maybe the motor is struggling, thereby shutting down the power supply. If I unhook that motor plug, upon power up, the printer flashes an error. Any more thoughts here? Maybe something I missed? WT |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
HP Deskjet 710 exploded view or service manual or infos | Electronics Repair | |||
Deskjet 692C flashing resume light | Electronics Repair | |||
installing a HP Deskjet 692c's optical strip | Electronics Repair | |||
HP deskJet 980Cxi will not print | Electronics Repair | |||
Power supply in HP Deskjet 890C | Electronics Repair |