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Troubleshooting
1-9
HP DesignJet CP Series Printers
What can I do if the Carriage is Noisy?
1 Dirty Carriage bushings. Remove dust particles from the Carriage
bushings and from the slider rods along which the Carriage moves. If
necessary, apply lubricant to the slider rods.
2 Check for a faulty Carriage. Perform the Carriage Axis Test ' page 4-12.
What can I do if the Service Station is Noisy?
1 Dirty Service Station slider rod. Remove dust particles from the Service
Station slider rod along which the Service Station moves. If necessary,
apply lubricant to the slider rod.
2 Check for a faulty Service Station. Perform the Service Station Test '
page 4-16.
What can I do if the Printer continuously rejects Printheads?
1 Clean the contacts on the Printhead and in the Carriage using the Ink
Cleaner Part Number C6247A.
2 Remove all the Printheads from the Carriage and try installing just the
rejected Printhead. If the Printhead is still rejected then replace the
Printhead with a new one. If the new Printhead is not rejected then
check, one by one, if the other Printheads are rejected or not.
3 Perform the Printhead Continuity Test ' page 4-29.
4 Perform the Electronics Test ' page 4-7.
5 Replace the Trailing Cable ' page 8-36.
6 Replace the Carriage Assembly ' page 8-42.
What can I do if the Printer has problems with Media Loading?
On HP DesignJets 3500CP and 3000CP a new Media Button has been
installed to assist in Media Loading.
1 Check that the Media Sensor/Media Button is installed correctly.
2 Check if the cable for the Media Sensor/Media Button is connected correctly.
3 Check if the Pincharms are down (the Pincharm lever should be up).
4 Perform the Line Sensor calibration ' page 5-10.
5 If the media is continuously rejected during the media edge check, then
make sure that the Line Sensor is installed correctly. If necessary,
replace the Carriage Assembly ' page 8-42 .
6 Replace the Media Sensor/Media Button ' page 8-78.
7 Perform the Electronics Test ' page 4-7.