HP Latex 850 HP Scitex LX850 & LX820 Printer: Installation Guide - Page 46
Problems with the ink sensor value
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Problems with the ink sensor value 1. There are three different cases that can cause a problem. ● The pressure sensor value is below a limit, which may vary depending on the volume of the supply. Probably there is an air bubble inside the cartridge connector tube column. Prepare the syringe again. Press OK and continue with step 2. ● The ink volume of the cartridge is too low to register on the pressure sensor. To ensure there are no air bubbles in the tube, you are recommended to purge again. Press BACK and continue with step 2. If you think there are no air bubbles, press OK and continue the process of purging the ISM tubes from where you were. ● The pressure sensor gives a negative value. If the pressure is negative, there may be an error in the ink pressure PCA or in the ink pressure sensor cable. Check both by looking at the connection of the cable to the ISS PCA and at the pressure sensor PCA. Press OK to cancel the purge process. 42 Chapter 7 Purge the ink system ENWW
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