9-2
Phaser 440 Color Printer
9
Checks and Adjustments
Printing test patterns
Note
Do not print test patterns using the Black Transfer Roll; many
patterns will print blank.
Checking and adjusting the printer often involves printing the printer's built-in
test patterns. The following procedure explains how to select and print a test
pattern.
1.
Turn off the printer.
2.
Remove the top rear cabinet panel to access the engine control board.
Refer to the Chapter 8 topic “Printer cabinet panels” on page 8-4.
3.
Set all the DIP 1 Switches
off
.
4.
Press and hold the
TEST
button and turn on the printer. Release the
TEST
button. The printer is now in service mode.
5.
Select the desired test pattern, using DIP Switches 1-4 through 1-7, as
detailed in Table 9-1.
6.
Toggle DIP Switch 1-8
on
then
off
to start the print. Leaving DIP
Switch 1-8
on
prints the selected pattern continuously. Alternatively,
you can press and hold the
TEST
button for 5 seconds to start the
selected pattern.
Figure 9-1 Engine control board DIP switches
1
8
1
8
Dip Switch 1
Dip Switch 2
(thermal head temperature)
9015-25
ON