vi
Phaser 840 Color Printer
Printing too light or too dark 49
Fuzzy text 50
Poor primary color fills 50
Poor small text resolution 51
Ghosting 51
Variation of density on second side of print 52
Ghost of first side image on second side of print 52
Vertical line appear wavy 52
Oil streaks on print 53
Poor ink adhesion, poor image durability 53
Incomplete image transfer to paper 54
Ink smears of first side of duplex print 55
Repeating print defects on print 55
Banding parallel to long edge of print 56
Wrinkling 56
Image is offset or cut off 57
Oil streaks on top of print 57
Macintosh printing problems 57
Image never prints 57
Image prints in black-and-white 58
Image is rotated 90 degrees 58
Printer isn’t in the Chooser 58
Windows printing problems 58
Image never prints 58
Adjustments
59
Bypass mode (manufacturing mode) 59
Cool down mode 59
Hidden service menu 60
Bypassing a “short menu” 60
Printing service test prints 61
Printing the Configuration Page 61
Selecting Duplex Oil Chase 61
Adjustments 62
Process belt tension adjustment 62
Exit roller drive belt tension adjustment 63
Y-axis belts tension adjustment 64
Printhead-to-drum spacing adjustment 66
Cap/wipe/purge assembly belt adjustments 68
Drum position encoder gap 70
Transfix roller pressure spring adjustment 72
X-axis scale adjustment 74
Vacuum check 75
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 ...