Question about Sony VO-9800 VCR

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Head Hours What exactly are head hours and can i verify the number? (is the vo too old for that?)

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I have replaced many an upper drum on u-matic VCRs. They were mainly used in Thompson flight simulation fair ground rides and were on all day every day. The original heads that come with Sony Professional and Broadcast kit last twice the recommended time before suggested replacement. HOWEVER, the replacement heads you obtain from Sony spares last shorter and must be made of a softer compound.

Posted on Sep 27, 2008

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Nope it's in the user menu and you have to have video going into the deck to read it on the monitor video out put. Head hours are the time the tape actually is in contact with the drum and the most accutate easy indication of drum ware. 3/4 Umatics don't eat heads as a rule. I think I only replaced 1 out of hundred for thousands and thousands decks. Brokers love head or durm hours tipically it's T2 on the menu.

Posted on Jan 27, 2008

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I have a c86 printer. The test on the 4 color ink patterns says nothing. I have cleaned the heads numerous times and have replace all of the ink cartidges twice. Same old situation. I have used Windex to...


You can try soaking the print heads for 24 hours (or more), as follows. Turn the printer on, and as soon as the print head moves out of its parking position, pull the power cord out of the back, or turn the printer off at the mains. You may now carefully move the print head by hand over to the left hand side out of the way. Look inside the print head parking area on the right and you will see a small rubber cup that comes up to cover the print nozzles when the head is parked (to stop it drying out). Use a syringe or dropper to fill this cup with head cleaning fluid or distilled water. DO NOT USE TAP WATER. Carefully push the print head by hand fully
into its parking position so that the cup full of fluid comes up over the print head. Do not turn the printer on at any stage in this process. Leave this for at least 24 hours, then turn the printer on and try a head clean/nozzle check again. If you get any ink on the nozzle check, then there is hope! Repeat the head clean/ nozzle check process 2 or 3 times, but not more. Leave for 24 hours for any air bubbles to disperse, then repeat. If nothing, repeat the soak process once more. If still nothing, post a new comment detailing what you have done and the results.

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Hi Powerstone03, the solution below is probably not relevant to you. Please respond to my queries above if you still want help.

Hi barron scalp

Are you confident the new cartridge was full and in-date? Can you confirm that the old cartridge was not removed until immediately before the new cartridge was installed. Did you remove the yellow tape from the new cartridge before you installed it? Was the black cartridge change properly completed such that an ink charging cycle occurred. Have you retried any further head cleaning cycles after leaving the printer alone for 24 hours or more? If not, do it. Any sign of black ink now? Yes, but not perfect? If so do a couple more head cleans and nozzle checks. If still not perfect, let it rest for another 24 hours to disperse air bubbles. Then repeat. Patience is needed here.

If you still have no result, and you're sure you have a good ink cartridge properly installed, then you can try soaking the print heads for 24 hours (or more), as follows. Turn the printer on, and as soon as the print head moves pull the power cord out of the back, or turn the printer off at the mains. You may now carefully move the print head by hand over to the left hand side out of the way. Look inside the print head parking area on the right and you will see a small rubber cup that comes up to cover the print nozzles when the head is parked (to stop it drying out). Use a syringe or dropper to fill this cup with head cleaning fluid or distilled water. DO NOT USE TAP WATER. Carefully push the print head fully into its parking position by hand (do NOT turn the printer on) so that the cup full of fluid comes up over the print head. Leave this for at least 24 hours, then try a head clean again. If still nothing, report back

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Leanne83 and jzig - I presume your problems are solved by now. If not, please respond with a new comment.

Guest
Are you confident the new cartridge is full and in-date? Can you confirm that the old cartridge was not removed until immediately before the new cartridge was installed. Did you remove the yellow tape from the new cartridge before you installed it? Was the black cartridge change properly completed such that an ink charging cycle occurred. Have you carried out any head cleaning cycles? If not, do it. Have you done a nozzle check print? If not, do it. Any sign of black ink? Yes, but not perfect? If so do a couple more head cleans and nozzle checks. If still not perfect, let it rest for 24 hours to disperse air bubbles. Then repeat.

If you have already done lots of head cleans with no result, and you're SURE you have a good ink cartridge properly installed, then you can try soaking the print heads for 24 hours (or more), as follows. Turn the printer on, and as soon as the print head moves pull the power cord out of the back, or turn the printer off at the mains. You may now carefully move the print head by hand over to the left hand side out of the way. Look inside the print head parking area on the right and you will see a small rubber cup that comes up to cover the print nozzles when the head is parked (to stop it drying out). Use a syringe or dropper to fill this cup with head cleaning fluid or distilled water. DO NOT USE TAP WATER. Carefully push the print head by hand fully into its parking position so that the cup full of fluid comes up over the print head. Leave this for at least 24 hours, then try up to 3 head clean/nozzle checks again. If still nothing, post a new comment with full details of what you have done and the results.

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