HP 1050C Plus "Switch power off Check printhead path (Type 2)" (14653 Views)
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Registered: ‎06-02-2010
Message 1 of 12 (14,653 Views)

HP 1050C Plus "Switch power off Check printhead path (Type 2)"

I try to load a roll and get the message "Paper loaded incorrectly.  Remove paper", so I remove the paper from the rollers.  Then it responds "Initializing.  Please wait."  Then "Ready for Paper."  Then I load the paper.  The carriage head then starts across the track a few inches and stops.  The error message then reads "Switch power off.  Check printhead path (Type 2)".  This pattern repeats each time I try to start the plotter.  What should I do?  Thanks much for you help.

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Registered: ‎02-27-2006
Message 2 of 12 (14,635 Views)

Re: HP 1050C Plus "Switch power off Check printhead path (Type 2)"

This is a velocity shut down.  You need to turn the power off, open the cleaner door on the right side and slide the cleaners out.  Now move the carriage assembly by hand from right to left and then back again.  Do you feel and obstructions or maybe bumping action.  If bumping action, the belt is bad and needs to be replaced.  It just tight in different sections you may just need to lube the slider rail.  Use a good synthetic oil.  Also clean the encoder if everything else is ok.  There has been an issue with the tube assemblies on this plotter where over time they can bow out and cause path issues.

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Registered: ‎07-24-2011
Message 3 of 12 (12,320 Views)

Re: HP 1050C Plus "Switch power off Check printhead path (Type 2)"

thank you for the detail answer, sir! I have a number of clients with this same problem. And yes, these printer are workhorses, but every horse needs maintenance over time.

we used 3in1 oil, and cleaned the rods first

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Registered: ‎02-27-2006
Message 4 of 12 (12,316 Views)

Re: HP 1050C Plus "Switch power off Check printhead path (Type 2)"

Never ever use 3 in 1 oil.  It is petroleum based and will cause big problems in the future.  You need to use a synthetic oil.

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Registered: ‎04-05-2011
Message 5 of 12 (11,368 Views)

Re: HP 1050C Plus "Switch power off Check printhead path (Type 2)"

Where is the encoder?

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Registered: ‎02-27-2006
Message 6 of 12 (11,364 Views)

Re: HP 1050C Plus "Switch power off Check printhead path (Type 2)"

The encoder is the clear strip that run thru the back of the carriage assembly. It has fine lines on it.
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Registered: ‎01-01-2012
Message 7 of 12 (11,135 Views)

Re: HP 1050C Plus "Switch power off Check printhead path (Type 2)"

What is the name of good synthetic oil to be used int his case?

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Registered: ‎02-27-2006
Message 8 of 12 (11,131 Views)

Re: HP 1050C Plus "Switch power off Check printhead path (Type 2)"

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Registered: ‎01-06-2012
Message 9 of 12 (11,061 Views)

Re: HP 1050C Plus "Switch power off Check printhead path (Type 2)"

that error usally means a bad belt possible encoder inspect visually look for wear spots if always stops at same place clean encoder strip be careful in can cut you if making noise going back and forth rubber from belt is stuck on motor on right side clean off with sharp object to get you thru belt will eventually have to be changed
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Registered: ‎01-11-2013
Message 10 of 12 (7,794 Views)

Re: HP 1050C Plus "Switch power off Check printhead path (Type 2)"

I know this post hasn't been used lately, but I am having the same problem.  What type of lubriacant is best?  I have silicone grease, would that work?  Also, what is safe to clean the encoder?  Thanks in advance for any help.

 

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Posts: 978
Registered: ‎08-11-2010
Message 11 of 12 (7,786 Views)

Re: HP 1050C Plus "Switch power off Check printhead path (Type 2)"

Do not use grease on the carriage shaft.  Clean the shaft with alcohol, use a light machine oil, HP sells a synthetic oil but it is pricey.   The encoder just needs to be blown off, or wiped with a cloth or a brush to remove any dirt that may be stuck in the sensing holes, as well as the sensor blown out.

If you feel my reply has assisted you in repairing your printer please press the kudos star icon on the left and mark as problem solved. Thank you!

TJ
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Registered: ‎01-11-2013
Message 12 of 12 (7,784 Views)

Re: HP 1050C Plus "Switch power off Check printhead path (Type 2)"

Thanks

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