Remedy: Remote troubleshooting (call agent) 1. Switch off the printer, and disconnect the power cord. Reconnect the power cord and power on the printer. 2. The call agent asks the customer to go to Support Menu by pressing the Power key continuously for 15 seconds. 3. Go to Diagnostic Menu and run the Line Sensor diagnostic, see Line Sensor (Zim/Spot). 4. The call agent should arrange a service engineer visit to change the Line Sensor assembly; follow the onsite troubleshooting below. • Line Sensor 5. If a different different system error is displayed then the call agent should perform the applicable troubleshooting procedure. Onsite troubleshooting and solution (service engineer) 1. Go to Support Menu (see Entering the support menus) and run the Line Sensor diagnostic, see Line Sensor (Zim/Spot). 2. Remove the covers and check that the cable of the line sensor is connected to the Carriage PCA and it is not damaged. If the cable is not connected then reconnect it, and power on the printer again to check whether the error has disappeared. IMPORTANT:If the cable is damaged then replace the Line Sensor, see Carriage Line Sensor (ZIM sensor) (CQ890-67001). • Line Sensor 3. Clean the Line Sensor and try again, see Clean the Carriage Line Sensor. 4. Replace the Carriage Assembly, see Carriage Assembly with Belt and Trailing Cable (5HB06-67001 & 5HB10-67001). • Carriage assembly w/belt (36) 5. Replace the Main PCA, see Main PCA (5HB06-67018 & 5HB08-67008) • Main PCA