Ricoh BR-C1a Basic Service Training page 206

 This diagram shows the locations of the two length
sensors (L1, L2).
 It also shows the locations where the CCD checks for width
(S1, S2, S3).
Slide 206
 For width direction, if the value detected by the CCD at any of the three detection
locations (S1, S2, or S3) is 18 or more, the machine detects that an original has
been placed. SP 4-310-1 to 9 show the CCD readings at S1 to S3. The values
shown are the latest detection results.
Original Size Detection
206
BR-C1 Training