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Service Guide
49
Blank print
1.
Do the imaging drum units
make good connection to their
power terminals?
2.
Are the LED heads wiring
harnesses undamaged and
properly seated?
3.
Is +3.8V (red wire) supplied to
Pin 3 of each LED head
assembly? If yes, replace the
LED head assembly.
4.
Is +3.8 V supplied to the
POWER connector pins 1, 2, 3,
4, 5, 6, 7 and 8 on the junction
board or at the 16-pin
interconnect near the top cover
hinge (under the top shield
plate). Inspect the junction
board’s wiring connectors. If
the voltage is not OK, replace
the low-voltage power supply.
5.
If +32 volts supplied to the
POWER connector pins 7, 8, 9
and 10 on the engine controller
board? Inspect the wiring harnesses or replace the low-voltage power
supply.
6.
Is +32V supplied to the HVOLT connector Pin 5 of the engine board. If not,
replace the engine board. (Transfer the old engine controller board’s
EEPROM (lower-right corner of board) to the new engine controller board.)
7.
Inspect the high-voltage wiring harnesses.
8.
Replace the high voltage power supply.
Содержание 2135N - Phaser Color Laser Printer
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Страница 170: ...Service Guide 157 Figure 2 Top cover FRUs 15 12 12 13 14 16 11 11 11 11 9 6 5 7 3 8 4 1 20 19 18 17 2 10 0725 02...
Страница 174: ...Service Guide 161 Figure 4 Printer chassis FRUs 2 of 2 3 4 1 2 9 7 10 6 11 8 5 12 0725 04 13...
Страница 176: ...Service Guide 163 Figure 5 Paper tray and paper tray guides FRUs 7 4 2 1 0725 05 5 6 3 8 9...
Страница 180: ...Service Guide 167 Figure 8 LowerTray Assembly FRUs 1 2 5 6 7 8 9 3 4 4 4 0725 07...
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