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Phaser 840 and 850 Color Printers
Main board and its components
1.
Power down the printer. Leave the power cord plugged in to provide a
ground path for static discharges. Remove the interface cables.
2.
Loosen the two rear panel securing screws.
3.
Slide out the main board.
Phaser 840 printer:
If you are replacing the main board, transfer the socketed
realtime clock/NVRAM chip and the printer ID chip to the new board so that the
printer’s settings and Ethernet address are retained. Also swap the SCSI riser
board, code ROM DIMM and the SDRAM DIMMs.
Removing the Phaser 840 printer main board
840-4-36
Main
board
Press here
when installing
RAM
DIMMS
Realtime
clock/NVRAM
SCSI
riser
board
Printer
ID
Code ROM
DIMM
Summary of Contents for Phaser 840
Page 11: ...xii Phaser 840 and 850 Color Printers ...
Page 65: ...54 Phaser 840 and 850 Color Printers ...
Page 101: ...90 Phaser 840 and 850 Color Printers ...
Page 125: ...114 Phaser 840 and 850 Color Printers ...
Page 134: ...Service Guide 123 Clearing PostScript NVRAM menu item ...
Page 135: ...124 Phaser 840 and 850 Color Printers ...
Page 166: ...Service Guide 155 Figure 1 Cabinet FRUs 7 5 6 8 1 2 4 0388 21 3 9 9 ...
Page 170: ...Service Guide 159 Figure 3 Paper path FRUs 0388 80 2 1 5 11 10 9 12 6 4 3 7 13 8 11a 11b ...
Page 172: ...Service Guide 161 Figure 4 Motor and fan FRUs 0388 14 7 4 3 5 6 2 1 ...
Page 174: ...Service Guide 163 Figure 5 Circuit board FRUs 4 3 5 2 1 9 7 6 8 10 11 13 0388 81 12 7a ...
Page 176: ...Service Guide 165 Figure 6 Solenoid and clutch FRUs 4 5 3 2 1 0388 23 ...
Page 182: ...Service Guide 171 Figure 9 High capacity PaperTray 0388 65a 1 2 ...