9-12
Phaser 440 Color Printer
9
Checks and Adjustments
Switch and interrupt sensor checks
There are six switch check modes to test a total of 20 switches and interrupt
sensors. The modes test the following switches:
Note
Figure 1-3 illustrates the locations of the print engine's sensors.
Mode 1
Transfer roll core sensor (right front)
Transfer roll core sensor (left)
Transfer roll core sensor (right rear)
Cover-open sensor
Mode 2
Head lift sensor 1
Head lift sensor 2
Lower Tray Assembly installed sensor
TEST button
Mode 3
Tray switch 1 (standard)
Tray switch 2 (standard)
Tray switch 3 (standard)
Paper-empty sensor (standard tray)
Mode 4
Tray switch 1 (second feeder)
Tray switch 2 (second feeder)
Tray switch 3 (second feeder)
Paper-empty sensor (second feeder tray)
Mode 5
Paper-pass sensor 1
Paper-pass sensor 2
Paper-exit sensor
Drum-home-position sensor
1.
Turn off the printer.
2.
Remove the rear cabinet panel to access the engine control board.
Refer to the Chapter 8 topic “Printer cabinet panels” on page 8-4.
3.
Press and hold the
TEST
button and turn on the printer. Release the
TEST
button. The printer is now in service mode.
4.
Set all the DIP 1 switches off.
5.
Select the test mode you want from the list above and then set the DIP
switches to activate the test mode you want:
Mode 1: Set DIP Switch 1-4 on.
Mode 2: Set DIP Switches 1-4 and 1-7 on.
Mode 3: Set DIP Switches 1-4 and 1-6 on.
Mode 4: Set DIP Switches 1-4, 1-6 and 1-7 on.
Mode 5: Set DIP Switches 1-4 and 1-5 on.