DP120F/DP125F Troubleshooting
11-76
March 2000 © TOSHIBA TEC
4.7.6 Faint or Blurred Print
Check points
Is the toner low?
Is the recording paper moistened?
Is the Transfer charger dirty?
Is the lens of the LSU dirty?
Is the machine placed on a slanted sur-
face?
Are the terminals on the both sides of the
paper guide dirty?
When no problem is found in the steps
above, the Drum unit, the Developer as-
sembly or PBA's may be defective.
Solutions
Replace the Toner cartridge.
Replace the recording paper and advise
the customer of correct recording paper
storage.
Clean the Transfer charger.
Clean the lens.
Place the machine on a flat surface.
Clean the terminals using a dry cloth.
Replace in the order of: Drum unit, De-
veloper assembly, HVPS, Main PBA.
Step
1
2
3
4
5
6
7
4.7.7 Black Marks
Check points
Is the machine being used in a low humid-
ity environment (less than 30%)?
Is the light (sunlight, etc.) coming in an
opening of the machine?
Is the charger wire in the Drum unit dirty?
Is the Fuser cleaner dirty or are there any
foreign obstacles stuck to the Fuser
cleaner?
Are the paper transport mechanism and/
or feed rollers (Pickup roller, Paper feed
roller or Exit roller) dirty?
Is the Fuser dirty?
Is the bottom of the Developer assembly
with Drum unit dirty?
When no problem is found in the steps
above, the Drum unit, the LSU or the
PBA's them selves may be defective.
Solutions
Move the machine to a desirable environ-
ment.
Move the machine to another place or use
a curtain to shut out the light.
Clean the charger wire using a Charger
cleaner.
Replace the Fuser cleaner.
Clean the paper transport section and roll-
ers.
Clean or replace the Fuser.
Clean the bottom of the Developer assem-
bly with Drum unit. (Be careful not to touch
the drum surface.)
Replace in the order of: Drum unit, LSU,
HVPS, Main PBA.
Step
1
2
3
4
5
6
7
8
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 ...