March 2000 © TOSHIBA TEC
11-75
DP120F/DP125F Troubleshooting
4.7.3 Vertical White Line(s)
4.7.4 Completely Black
4.7.5 Completely White
Check points
Is the white line generated on the Magnet
roller of the Developer assembly.
Is the Transfer charger dirty?
Is the lens of the LSU dirty?
When no problem is found in the steps
above, the Developer assembly may be
defective.
Solutions
Clean the Magnet roller using a Mylar
scarper.
Clean or replace the Transfer charger.
Clean the lens.
Replace the Developer assembly.
Step
1
2
3
4
Check points
Are the terminals inside the machine (rear
side) dirty or deformed?
Is the charger wire in the Drum unit bro-
ken?
When no problem is found in the steps
above, the Drum unit, the LSU or PBA's
may be defective.
Solutions
Clean or correct the terminals.
Replace the Drum unit.
Replace in the order of: Drum unit, LSU,
HVPS, Main PBA.
Step
1
2
3
Check points
Is the belt of the Developer assembly dis-
located?
Is the Drum unit or Developer assembly
improperly mounted?
Are the terminals of the Developer assem-
bly and the Drum unit dirty or bent?
Are the terminals on both sides of the pa-
per guide dirty.
Is the Transfer charger broken?
Is the lens of the LSU dirty?
When no problem is found in the steps
above, the Developer assembly, the LSU
or the PBA's may be defective.
Solutions
Remove the cover and mount the belt
properly.
Mount the Drum unit and the Developer
assembly properly.
Clean the terminals using a dry cloth or
repair them using cutting pliers.
Clean the terminals using a cotton swab.
Replace the Transfer unit.
Clean the lens.
Replace in the order of: Developer assem-
bly, LSU, HVPS, Main PBA.
Step
1
2
3
4
5
6
7
Содержание DP120F
Страница 1: ...PLAINPAPERFACSIMILE File No 31200001 R0112216901 TTEC ...
Страница 294: ...March 2000 TOSHIBA TEC 6 7 DP120F DP125F PBA Outline and Sensor Function 3 7 PC I F PBA Fig 6 3 8 06 03 08 ...
Страница 311: ...DP120F DP125F Circuit Description 7 2 March 2000 TOSHIBA TEC 07 01 02 Fig 7 1 2 US CA TW models 2 3 ...
Страница 312: ...March 2000 TOSHIBA TEC 7 3 DP120F DP125F Circuit Description Fig 7 1 3 07 01 03 US CA TW models 3 3 ...
Страница 313: ...DP120F DP125F Circuit Description 7 4 March 2000 TOSHIBA TEC Fig 7 1 4 07 01 01E EU AU ASIA HK models 1 3 ...
Страница 314: ...March 2000 TOSHIBA TEC 7 5 DP120F DP125F Circuit Description Fig 7 1 5 07 01 02E EU AU ASIA HK models 2 3 ...
Страница 315: ...DP120F DP125F Circuit Description 7 6 March 2000 TOSHIBA TEC Fig 7 1 6 07 01 03E EU AU ASIA HK models 3 3 ...
Страница 316: ...March 2000 TOSHIBA TEC 7 7 DP120F DP125F Circuit Description 1 2 Block Diagram 07 01 10 Fig 7 1 7 ...
Страница 337: ...DP120F DP125F Circuit Description 7 28 March 2000 TOSHIBA TEC 3 1 Memory Circuit Fig 7 3 1 07 03 01 ...
Страница 387: ...DP120F DP125F Circuit Description 7 78 March 2000 TOSHIBA TEC EU AU ASIA HK models Fig 7 4 2 07 04 00E ...
Страница 401: ...DP120F DP125F Circuit Description 7 92 March 2000 TOSHIBA TEC 07 05 00 Fig 7 5 1 ...
Страница 579: ...March 2000 TOSHIBA TEC 9 15 DP120F DP125F Dialing and Communication Procedure b Standard procedure ...
Страница 654: ...DP120F DP125F Troubleshooting 11 42 March 2000 TOSHIBA TEC 2 3 Flow Chart Recommended for Field Service ...
Страница 655: ...March 2000 TOSHIBA TEC 11 43 DP120F DP125F Troubleshooting 2 4 Flow Chart Recommended for Telephone Screening ...
Страница 656: ...DP120F DP125F Troubleshooting 11 44 March 2000 TOSHIBA TEC ...
Страница 699: ...March 2000 TOSHIBA TEC 12 1 DP120F DP125F Appendix Chapter 12 Appendix 1 Sample List 1 1 Protocol Trace List ...
Страница 700: ...DP120F DP125F Appendix 12 2 March 2000 TOSHIBA TEC 1 2 Error Count List ...
Страница 701: ...March 2000 TOSHIBA TEC 12 3 DP120F DP125F Appendix 1 3 Function List for Maintenance ...
Страница 702: ...DP120F DP125F Appendix 12 4 March 2000 TOSHIBA TEC 1 4 Drum Unit ...
Страница 703: ...March 2000 TOSHIBA TEC 12 5 DP120F DP125F Appendix 1 5 Memory Dump List ...
Страница 706: ...SHUWA SHIBA PARK BLDG A 2 4 1 SHIBA KOEN MINATO KU TOKYO 105 8524 JAPAN ...