HP Designjet T120 - Page 64

Other potential parts
associated:
Carriage PCA, Trailing Cable, Main PCA
Corrective action: 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 the Support Menu by pressing the Power
key continuously for 15 seconds.
3. Go to the Diagnostics menu and run 2.7 Line Sensor diagnostic, see
2.7 Line
Sensor on page 112.
4. The call agent should arrange a service engineer visit to change the Line Sensor
assembly; follow the onsite troubleshooting below.
◦
Line Sensor  CQ890-67001
5. If a different system error is displayed then the call agent should perform the applicable
troubleshooting procedure.
Onsite troubleshooting and solution (service engineer)
1. Go to the Support Menu (see
Entering the support menus on page 102) and run 2.7
Line Sensor diagnostic, see
2.7 Line Sensor on page 112.
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
note: If the cable is damaged then replace the Line Sensor, see
Carriage Line Sensor
on page 293.
◦
Line Sensor  CQ890-67001
3. Clean the Line Sensor and try again, see
Clean the Carriage Line Sensor on page 314.
4. Replace the Carriage Assembly, see
Carriage and Belt on page 236.
◦
Carriage assembly w/belt (24)  CQ890-67002
◦
Carriage assembly w/belt (36)  CQ893-67011
5. Replace the Main PCA, see
Main PCA on page 205
◦
Main PCA Pro  CQ890-67023
◦
Main PCA Basic  CQ891-67003
System error: 59.1:19
Problem description: Main PCA and Ink Cartridge Sensor PCA replaced at the same time
Other potential parts
associated:
None
Corrective action: Onsite troubleshooting and solution (service engineer)
1. The error appears if, during a service operation, the Main PCA and the Ink Cartridge
Cover Sensor PCA are replaced at the same time.
2. To recover, do the repair by changing first one component (use the old component for
this printer); after powering the printer off and on, change the other.
56 Chapter 2 Troubleshooting ENWW