Scanner Assembly - OKIDATA OF1000 Service Manual

2.2.04 Scanner Assembly

The Okifax 1000 uses a 1728-element direct contact type image scanning sensor. LEDs are
located at the bottom of the scan glass and image sensors are located at the top of the glass.
When the document reaches the scanning unit, it passes directly in front of the image sensor. The
LEDs illuminate the document and the light reflects back to the image sensors. This image data is
sent to the printer control board (PCNT-150). The transmitted document length is limited to 14
inches; however, the machine can be modified for longer transmissions. (See Transmitting Long
Documents in the Users Documentation).
Transmission will stop and a line disconnect will occur if the end of the document is not detected
within 14 inches after scanning begins (unless the unit is set for unlimited transmission.) The
message
RE-LOAD DOCUMENT
CONFIRM AND "STOP"
will be displayed if the document does not reach the scanning position within 5 seconds after the
start of a document feed.
NOTE:
When a jam condition is displayed on the operator panel during message transmission, the
machine will stop, but its receiving capability will remain active.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Service Guide OF1000
Chapter 2 Principles of Operation
Page: 30