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Service Guide
61
Printing service test prints
1.
Turn on the printer.
2.
Allow the printer to complete its power-up self-tests. The front panel
displays:
READY TO PRINT
3.
Scroll to the
Troubleshooting
menu and press
Select
.
4.
Press and hold the Left arrow button.
5.
While holding the Left arrow button, press
Select
to enter the hidden
service menu.
6.
Scroll to the menu item
Test Prints
. Select a test print.
Refer to “Test Prints” on page 133; it discusses each test print and what printing
defect it reveals.
Printing the Configuration Page
1.
Turn on the printer.
2.
Allow the printer to complete its power-up self-tests. The front panel
displays:
READY TO PRINT
3.
Scroll to the
Menu
and press the
Select
button
.
4.
Scroll to the menu item
Printer Configuration
and press the
Select
button.
5.
Scroll to the menu item
Print Configuration Page
and press the
Select
button.
The configuration page shows a great deal of information regarding the data and
set-up values stored in NVRAM. Refer to the topic, “Configuration Page” on the
Color Printer Service & Support Resources CD-ROM
for an explanation of the
configuration page.
Selecting Duplex Oil Chase
This item is turned on to correct a print artifact called “blistering.” Blistering,
when it occurs, affects the duplexed side of a solid fill and appears as the texture
of an orange peel. For blistering to occur, it must appear on the second side of the
second of two or more solid-fill duplex prints. Before enabling Duplex Oil Chase,
try different, heavier paper. Duplex Oil Chase enabled causes a blank page to
print on simplex to duplex printing transitions and after every 50 duplex prints.
1.
Scroll to the hidden service menu.
2.
Scroll and highlight the menu item
Duplex Oil Chase
.
3.
Press Select to turn the menu item on.
4.
Exit the hidden service menu.
Summary of Contents for Phaser 840
Page 46: ...36 Phaser 840 Color Printer ...
Page 95: ...Service Guide 85 Clearing PostScript NVRAM menu item ...
Page 96: ...86 Phaser 840 Color Printer ...
Page 121: ...Service Guide 111 Figure 1 Cabinet FRUs 7 5 6 8 1 2 4 0388 21 3 ...
Page 125: ...Service Guide 115 Figure 3 Paper path FRUs 0388 16 2 1 5 11 10 9 12 6 4 3 7 13 8 ...
Page 127: ...Service Guide 117 Figure 4 Motors and fans FRUs 0388 14 7 4 3 5 6 2 1 ...
Page 129: ...Service Guide 119 Figure 5 Circuit boards FRUs 4 3 5 2 1 9 7 6 8 10 11 13 0388 13 12 ...
Page 131: ...Service Guide 121 Figure 6 Solenoids and clutches FRUs 4 5 3 2 1 0388 23 ...
Page 137: ...Service Guide 127 Figure 9 High capacity PaperTray 0388 65a 1 2 ...
Page 142: ...132 Phaser 840 Color Printer ...
Page 154: ...144 Phaser 840 Color Printer ...