March 2000 © TOSHIBA TEC
7-49
DP120F/DP125F Circuit Description
3.16 Paper Jam Detect Circuit
The paper jam detect circuit consists of the I/OP-2 GA (IC48) and other peripheral devices. It
detects the transport status of recording paper by judging the outputs of paper feed sensor
connected to the HVPS and paper exit sensor connected to CN4 on the Mother PBA.
When recording paper is transported by the main motor, paper feed sensor is pushed down by
the recording paper and turns on. This causes the FDS1 signal to be LOW and input to the
I/OP-2 GA to detect that the recording paper is being transported over paper feed sensor.
Then, when the paper is further transported and passes paper feed sensor, the FDS1 signal
goes HIGH. Unless the FDS1 signal goes HIGH within the specified time at this time, the
occurrence of a recording paper jam will be assumed.
When recording paper is transported by the main motor, paper exit sensor is pushed down by
the recording paper and turns on in the same manner as with paper feed sensor. This causes
the FDS2 signal to be LOW and input to the I/OP-2 GA to detect that the recording paper is
being transported over paper exit sensor. Then, when the recording paper is further trans-
ported and passes paper exit sensor, the FDS2 signal goes HIGH. Unless the FDS2 signal
goes HIGH within the specified time at this time, the occurrence of a recording paper jam will be
assumed.
Fig. 7-3-16
07-03-16
Signal Name
Type
Active
Description
Destination
FDS1
I
L
Paper Feed Sensor Detect Signal
I/OP-2 GA
FDS2
I
L
Paper Exit Sensor Detect Signal
I/OP-2 GA
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 ...
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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 ...