Control Of Paper Size; Paper Detection By The Regi Sensor - Dell 2130cn Service Manual

3.3.4 Control of paper size

The printer doesn't have switches for detecting paper size, and only length of paper is detected by the
Regi Sensor when feeding paper. If printing data and paper size don't match, error is sent to the ESS.

3.3.5 Paper detection by the Regi Sensor

Since the paper path from the SSI to the Regi Sensor and that from the Paper Tray to the Regi Sensor
are different, the Regi Sensor is provided with the ACTUATOR REGI IN and the ACTUATOR REGI
ROLL. The ACTUATOR REGI ROLL detects the sheet from the SSI and detects the tail edge of the
paper from the paper tray. The ACTUATOR REGI IN detects the lead edge of the paper from the paper
tray. However, the movement of ACTUATOR REGI IN does not affect that of ACTUATOR REGI ROLL.
Rear view illustration
ACTUATOR REGI ROLL
SPRING ACT REGI
Normal Position
SENSOR PHOTO
(Regi Sensor)
Detection of paper (Tail Edge)
ACTUATOR
REGI ROLL
SENSOR PHOTO
(Regi Sensor)
SENSOR PHOTO (Regi Sensor)
ACTUATOR REGI IN
ACTUATOR REGI ROLL
ACTUATOR REGI IN
PAPER
ACTUATOR REGI IN
ACTUATOR REGI OUT
SPRING REGI OUT
SENSOR PHOTO (Regi Sensor)
From Paper Tray
ACTUATOR REGI IN
SENSOR PHOTO
(Regi Sensor)
PAPER
From SSI
ACTUATOR
REGI ROLL
SENSOR PHOTO
(Regi Sensor)
ACTUATOR REGI IN
6 – 27
Chapter 6 Principles of Operation
PAPER
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