There is no paper in the sheet feeder sensor. Ran a check in the diagnostic menu and it failed, so I went out and bought a new sensor, but it is failing too. Checked the wires from the sensor to the main board and they tested good. Replaced the main board thinking it was bad, but it did not help. Anybody got a schematic for this machine? It does not come with the service manual. Or can you give your best or worst guess? I am not picky at this moment in time. TIA
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Re: Designjet T770 Unload paper from sheet feeder
Ok, I just read this in the manual. Going to try it Monday.
Calibrate Sheet Sensor
The purpose of this Service Calibration is to calibrate thesingle-sheet sensor. This sensor should be
calibrated whenever a new sensor is installed, or if single sheetscannot be loaded.
1. Inthe Service Calibrations submenu, scroll to Calibrate sheet sensor and press OK.
2. Removepaper from the sheet sensor and press OK to continue.
3. When you see the following message, insert sheet paper into the sheet sensor and press OK to continue.
4. If the calibration was successful, a message appears such as the following. If you see an error
message, check that the sheet sensor is connected, and retry the calibration.
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