The printer does not power on Troubleshooting To resolve printer power-up problems, do the following: 1. Check that the power cord is connected correctly to the printer and to the power socket. 2. Check that the power switch at the rear of the printer is in the on position. 3. Check that the front-panel cable is correctly connected to the Electronics Module. Also make sure that the front-panel cable is not damaged. 4. Check to see if any of the LEDs on the power switch are on. If any of the LEDs are on, then see How to read the power switch LEDs on page 13 for more information. The printer continuously rejects printheads To resolve printhead rejection problems, do the following: 1.
Clean the flex contacts on the Printhead and in the Carriage Assembly using the Carriage Interconnect Wiper (see Carriage Interconnect Wiper on page 82 ) and try again. 2. If all the Printheads are rejected (for each Printhead, the status message on the Front Panel does not show ' OK ') then perform the Carriage Assembly Test Carriage Assembly test on page 90 .. A new maintenance cartridge is incorrectly detected as ‘used’ This can occur if the printer has detected the previous Maintenance Cartridge was nearly full, and when a new Maintenance Cartridge is installed the front panel displays an error that the cartridge is ‘used’.
To resolve the problem, manually reset the counter of the Maintenance Cartridge Reset Life Counters on page 108 . Cover sensors are not working To resolve cover sensor problems, do the following: 1. Check whether the sensor cable is damaged or not connected correctly. 2. Replace the faulty sensor. The Line Sensor has problems detecting paper To resolve Line Sensor paper detection problems, do the following: 1. Check the type of paper that is being used: the Line sensor may have problems detecting transparent paper or some types of Non-HP paper. Try loading white HP paper into the printer and check whether the Line Sensor detects it. 2.
Excessive ink deposits on the Platen surface can fool the sensor by reflecting the light. Clean the Print Platen. ENWW The printer does not power on 5