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687200Q
5.2.1.22 HVPS (Developer Bias DC) Operation
This diagnostic tests the HVPS DC voltage to the Developer Bias Charge Roll. During this test the high
voltage will be present for only a few seconds.
WARNING! This test switches on the HVPS. Never touch the parts supplied with a high voltage
from the HVPS when running the following diagnostics. The HVPS output voltages
switched on by these procedures can be measured by means of a multimeter. Be
sure to observe the following procedures to check the voltages.
Execute HVPS (Developer Bias DC) Operation:
1 Enter Diagnostics Mode 1.
The LCD displays PRINT COUNTER OPERATION indicating the
printer is in Diagnostics Mode 1.
2 Press the MENU UP (1) or MENU DOWN (5) key until the LCD displays HVPS (DEV. BIA DC)
OPERATION message.
3 Remove the EP Cartridge from the printer.
4 Bypass the Front Cover interlock switch and the EP Cartridge interlock switch with an Interlock
Bypass key or equivalent.
5 Set the multimeter to read a momentary minus DC voltage (approximately one second in
duration), in the 500 to 600 VDC range.
6 Using alligator clips, connect the multimeter to the following terminals:
• Positive test probe to the front pin of the two voltage supply pins on the right side of the
Transfer Chute Assembly (see Figure 5.2.1.20.1).
• Negative test probe to the LVPS frame or the printer frame.
7 Press the ENTER key to execute the test. The LCD displays the HVPS (DEV.BIA DC) message.
NOTE: Voltage is present for approximately one second each time the ENTER key is pressed.
8 The normal momentary HVPS Developer Bias output voltage is approximately -400 VDC.
9 If you wish to exit this test and enter another test use the MENU UP (1) or MENU DOWN (5) key
to scroll to another test.
10 To exit this test and return to normal operation, switch OFF the printer power then switch it ON.
HVPS (DEV.BIA DC)
Operation EXECED
Содержание DR N17
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Страница 394: ...8 32 687200Q 8 7 4 P216 Pin Layout Refer to the P216 Pin Layout when troubleshooting the 500 Sheet Paper Feeder option...
Страница 421: ...687200Q Service Manual 9 21 Replacement Perform the removal steps in reverse order...
Страница 442: ...9 42 687200Q 9 8 Installation and Removal For the installation and removal of the OCT Unit see the Printer User Guide...
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Страница 510: ...11 34 687200Q 11 7 Wiring Diagrams 11 7 1 Connector Locator J 1 3 5 1 11 1 13 1 15 J231 J201 J230 SAS641FA...
Страница 518: ...Spare parts catalogue 687200Q DP N17 WITH OPTION SPARE PARTS CATALOGUE FROM SERVICE MANUAL 1...
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Страница 525: ...3 8 687200Q PL 3 Paper Tray 3 2 7 6 5 4 8 S S S 1 with 2 S S SAS303FB...
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Страница 539: ...3 22 687200Q PL 10 Electrical Module I with Top Cover 2 4 3 S S 1 SAS310FB 5...
Страница 543: ...3 26 687200Q 3 2 6 4 5 1 PL 12 System Controller...
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Страница 556: ...Spare parts catalogue 687200Q A 1 GENERAL CODES INDEX DP N17...