Service Guide
57
Unexpected colors
The colors produced by the printer are dramatically different from the color you
expected.
1.
Look for dirt or contamination
on the LED heads. Clean them
with an alcohol wipe.
2.
Inspect and clean the imaging
drum unit’s power terminals
Ensure the spring-loaded pins
travel smoothly up and down.
3.
Replace any imaging drum
units you suspect are defective.
4.
Are the LED heads wiring
harnesses undamaged and
properly seated?
5.
Is +3.8V (red wire) supplied to
Pin 3 of each LED head
assembly? If yes, replace the
LED head assembly.
6.
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.
7.
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.
8.
Is +32V supplied to the HVOLT connector Pin 5 of the engine board. If not
replace the engine controller board. Transfer the old engine controller
board’s EEPROM (lower-right corner of board) to the new engine controller
board.
9.
Inspect the high-voltage wiring harnesses.
10.
Replace the high voltage power supply.
Содержание 1235DT - Phaser Color Solid Ink Printer
Страница 13: ...xiv Phaser 1235 Network Color Printer...
Страница 33: ...20 Phaser 1235 Network Color Printer...
Страница 77: ...64 Phaser 1235 Network Color Printer...
Страница 93: ......
Страница 97: ......
Страница 99: ......
Страница 103: ...90 Phaser 1235 Network Color Printer...
Страница 134: ...Service Guide 121 Reverse these steps to install the paper size sensing board Removing the paper size sensing board...
Страница 199: ......
Страница 202: ...Service Guide 189 Figure 1 Cabinet FRUs...
Страница 204: ...Service Guide 191 Figure 2 Top cover FRUs...
Страница 206: ...Service Guide 193 Figure 3 Printer chassis FRUs 1 of 2...
Страница 208: ...Service Guide 195 Figure 4 Printer chassis FRUs 2 of 2...
Страница 210: ...Service Guide 197 Figure 5 Paper tray FRUs...
Страница 212: ...Service Guide 199 Figure 6 Paper tray guide FRUs...
Страница 214: ...Service Guide 201 Figure 7 Multi sheet bypass feeder FRUs...
Страница 216: ...Service Guide 203 Figure 8 Electrical components FRUs...
Страница 217: ...204 Phaser 1235 Network...
Страница 218: ...Service Guide 205 Figure 9 Duplexer unit...
Страница 220: ...Service Guide 207 Figure 10 LowerTray Assembly FRUs...
Страница 228: ...Service Guide 215 Wiring Diagram Wiring diagram part 1 of 3...
Страница 229: ...216 Phaser 1235 Network Color Printer Wiring diagram part 2 of 3...
Страница 230: ...Service Guide 217 Wiring diagram part 3 of 3...
Страница 231: ...218 Phaser 1235 Network Color Printer Wire routing at the engine controller board Tie wraps Bundle wires thru EMI coils...
Страница 232: ...Service Guide 219 Wire routing at the top of the engine controller board Tie wrap...
Страница 233: ...220 Phaser 1235 Network Color Printer Detail of wiring passthru...
Страница 235: ...222 Phaser 1235 Network Color Printer...
Страница 236: ...NOTES...
Страница 237: ...NOTES...
Страница 238: ...NOTES...
Страница 239: ...NOTES...