HP Color LaserJet 9500HDN Printer "clean sensors error" Questions

...clean sensor error was----The sensor it refers to is the density sensor located inside the machine via the right hand door. Open it and clean the large sensor in the middle. If this doesn't work then ...

...clean sensors and from there it can not print or go to the ready mode.i have cleaned several sensors but still it is displaying that error on the control panel.Please assist. The sensor it refers to ...

error "no print cartridge? > Switch off the machine, remove power cord,> remove right,left & back doors,> see the snap shot observe sensor & spring> clean the sensor from dust

...clean with isopropyl- the sensors are looking vertically down and are approx 5x15mm is size there is one sensor to the left and one to the right, if after cleaning these the error still exists- try ...

...bothering alot, it has an error 13.06.00 and also 13.20.00. What shall i do? I tired to clean the falg sensor and replaced the end sensor, but still there is no progress. Please i need help

...sensor.ActionTurn the printer off, and turn it on again.Clean the color registration detection sensor above the black print cartridge if the error does not clear.If this message persists, contact

...message, open and close the top most cover of the printer. Lastly, verify the flags and the sensors. If the problem persists, the cause of the error message could be a broken sensor or sensor

...blow it throughout the printer. Sometimes toner dust sits on the sensors giving a false reading. If after this you still get an error you're going to need a printer engineer! i want to cd 2605 ...

Error 13.20.00 Checked all sections and cleaned all sensors:there's no paper inside but at start up machine indicate error code 13.20.00 Can a broken cable(sensor) cause this problem? Please advice ...

...18. According to the HP error code message reference, this is a black cartridge sensor malfunction. Cleaned the sensor contacts, replaced the cartridge and rebooted; same error. Is there another fix ...