Ricoh B121 Service Manual page 270

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Table of Contents

Original Size

NOTE: 0: High (no paper), 1: Low (paper present)

The above table shows the outputs of the sensors for each original size. This

original size detection method eliminates the necessity for a pre-scan and

increases the machine's productivity.

For other combinations, "Cannot Detect Original Size" will be indicated on the

operation panel display (if SP4-303 is kept at the default setting).

However, if the by-pass feeder is used, note that the machine assumes that the

copy paper is short-edge first. For example, if A4 paper is placed long-edge first on

the by-pass tray, the machine assumes it is A3 paper and scans the full A3 area for

the first copy of each page of the original, disregarding the original size sensors.

However, for each page, the data signal to the laser diode is stopped to match the

copy paper length detected by the registration sensor. This means that copy time

for the first page may be slower (because of the longer time required for scanning),

but it will be normal for the rest of the job.

Original size detection using the ADF is described in the manual for the ADF.

B121 Series/B259 Series

Length Sensors

Width Sensors

B121D931.WMF

Chapters

Table of Contents

B259 B260 B261 B122 B123