Service Guide
59
Adjustments
Bypass mode (manufacturing mode)
Bypass mode allows you to access the front panel menus (bypassing the engine
and PostScript initializing processes) without having to wait for the printhead to
warm up. This way, you can reset NVRAM or read fault codes immediately.
Meanwhile, the printer continues to warm-up and initialize “in the background.”
1.
At the rear of the printer, set DIP Switch 2 into the
down
position.
Ensure Switches 1, 3 and 4 are up. (Normal operation is all switches
up.)
2.
Turn on the printer.
The printer will not print a Cleaning page nor a Startup Page when placed in
Bypass Mode.
Cool down mode
The printer features a menu item that accelerates the cooling down of the
printhead. When the printer is turned off, it automatically gives the option of
performing a quick cool down.
1.
Turn off the printer.
2.
Scroll to the menu item
Shutdown For Moving Printer
and push
Select.
3.
Open printer doors to help speed the cooling process.
The printer turns off all the engine heaters and runs the fans on high until the ink
in the printhead has solidified. Then the printer shuts itself off. If you are
shipping the printer, remove the maintenance drawer.
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 ...