Ricoh Neptune-P1 Service Manual page 408

Roll Pre-feeding
Check Before Pre-Feeding
The machine does a pre-feed control check:
• Immediately after the main power switch or operation switch is switched on.
• Immediately after the roll feeder drawer is closed.
• At the end of a copy job.
During the pre-feed check, the cutter moves to home position:
• The machine checks if the left or right cutter HP switch is ON.
• If the two cutter sensors are OFF, the machine moves the cutter to the left home position. This makes
sure that the spring-loaded paper holder opens to let paper feed. (See p.410 "Roll Paper Cutting
Mechanism".)
The machine pre-feeds paper from each roll after the pre-feed check completes without error. Pre-feeding
is done for Roll 1 first.
Roll 1 Pre-Feeding
• Roll feed clutch 1 engages and turns the Roll 1 feed roller.
• The leading edge of the sheet feeds past the RF exit sensor [A].
• Feed stops.
• The roll feed motor pulls back the leading edge of the sheet until it is 55 mm below the cutter. Then it
stops. This is the pre-feed position [B] for Roll 1.
Roll 2 Pre-Feeding
• The machine pre-feeds the sheet from Roll 2.
Paper Feed and Registration
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