Service Mode 1
Service Mode 1 contains tests that do not need a complete initialization of the Printer This means if there is a system error in normal mode it is still possible to enter into Service Mode 1 Also the Sensors are disabled in Service Mode 1 which means it will not be possible to load media The only time that the sensors will be functional is during the Sensors Test
THE COVER SENSOR IS DISABLED WHEN IN SERVICE MODE 1. IF THE CARRIAGE IS MOVING IT WILL NOT STOP IF THE COVER IS OPENED. BE VERY CAREFUL NOT TO PUT YOUR HANDS INSIDE.
Some of the tests in service mode 1 send test information to the printers serial port To view the information perform the procedure on page 4/7
The Electronics Test is continuously done in the background during Service Mode 1. If you are viewing information via the serial port, you will see output similar to the following:
Test Mode EE test: 0
Test Mode EE test: 1
Stopping a Test
The service tests are continuously repeated until you stop them To exit a test press the Cancel and Media Source keys some tests may take a short while before exiting To exit Service Mode 1 you must power OFF the Printer
Entering Service Mode 1
1While holding the Reprint key down switch the Printer ON
2
HP DesignJet 430, 450C and 455CA Printers | Service Tests |