March 2000 © TOSHIBA TEC
5-7
DP120F/DP125F Mechanical Description
2.2.4 Scanning Area
It consists of the White plate and CIS unit to scan documents.
•
White plate
The light of the LED array is shined upon the White plate to establish a reference between
black and white on the document pages. Based on that data, the standard value of white
is set. It also functions to press documents down against the CIS unit surface.
•
CIS unit
The CIS (Contact Image Scanner) unit consists of the LED array, Lens array, and Sensor
array. The CIS functions to obtain image sections of respective scanning width of a docu-
ment. (As for resolution, etc., Refer to Page 2-2.) The light emitted by LEDs strikes the
surface of the document and reflects through the Lens array and is read by the Sensor
array.
LED array
White plate
Sensor array
Lens array
Feed direction
Documents
Fig. 5-2-4
05-02-04
Summary of Contents for DP120F
Page 1: ...PLAINPAPERFACSIMILE File No 31200001 R0112216901 TTEC ...
Page 401: ...DP120F DP125F Circuit Description 7 92 March 2000 TOSHIBA TEC 07 05 00 Fig 7 5 1 ...
Page 656: ...DP120F DP125F Troubleshooting 11 44 March 2000 TOSHIBA TEC ...
Page 700: ...DP120F DP125F Appendix 12 2 March 2000 TOSHIBA TEC 1 2 Error Count List ...
Page 701: ...March 2000 TOSHIBA TEC 12 3 DP120F DP125F Appendix 1 3 Function List for Maintenance ...
Page 702: ...DP120F DP125F Appendix 12 4 March 2000 TOSHIBA TEC 1 4 Drum Unit ...
Page 703: ...March 2000 TOSHIBA TEC 12 5 DP120F DP125F Appendix 1 5 Memory Dump List ...
Page 706: ...SHUWA SHIBA PARK BLDG A 2 4 1 SHIBA KOEN MINATO KU TOKYO 105 8524 JAPAN ...