Xerox DocuPrint N2025 Service Manual page 365

Figure 3 500 Sheet Feeder - Tray 3.
Initial Issue
DocuPrint N2025/N2825
20. Print Engine Controller PWB <--> Feeder 2 PWB (<--> Feeder 3 PWB) <--> Low Paper
Sensor, No Paper Sensor, Tray 1 Feed Solenoid, Switch Size, and Feed Motor 2 (or 3)
Signal Name Description
SIZE2 (TTL) Selects the Switch Size of Feeder 2. When this signal is HIGH, the On
or Off states of the Switches Size 1 to 4 of the Feeder 2 are input to the
Print Engine Controller PWB on the signal lines SIZE 1BIT to SIZE
4BIT.
SIZE3 (TTL) Selects the Switch Size of Feeder 3. When this signal is HIGH, the On
or Off states of the Switches Size 1 to 4 of the Feeder 3 are input to the
Print Engine Controller PWB on the signal lines SIZE 1BIT to SIZE
4BIT.
NO PAPER 2 (TTL) Signal from the No Paper Sensor 2 (No Paper Sensor of the Feeder 2).
This signal is Low when the No Paper Sensor 2 is actuated.
NO PAPER 3 (TTL) Signal from the No Paper Sensor 3 (No Paper Sensor of the Feeder 2).
This signal is Low when the No Paper Sensor 3 is actuated.
FEEDER CK Signal that indicates the Feeder configuration
ENV_OP Signal that indicates the Envelop Cassette configuration
FEED 2 (H) 24VDC Feed Solenoid control signal. The Feed Solenoid 2 (Feed Solenoid of
the 500 Sheet Feeder 2) is actuated when this signal is High, and deac-
tuated when Low.
FD_MOT_ ON (TTL) Motor Feed control signal to switch the Motor Feed on and off
2000 Sheet Feeder Transmitted data from the Print Engine Controller PWB to the 2000
TX/FEED3 (H) Sheet Feeder or Feed Solenoid control signal. The Feed Solenoid 3
24VDC (Feed Solenoid of the 500 Sheet Feeder 3) is actuated when this signal
is High, and deactuated when Low.
2000 Sheet Feeder- Received data from the 2000 Sheet Feeder to the Print Engine Control-
RX ler PWB
*: Refer to the description of the detection of the feeder configuration in this manual.
20. Print Engine Controller PWB <--> Feeder 2 PWB (<--> Feeder 3 PWB) <--> Low Paper
Sensor, No Paper Sensor, Tray 1 Feed Solenoid, Switch Size, and Feed Motor 2 (or 3)
Signal Name Description
/NEAR END SNS2 (or Signal from the Low Paper Sensor. Goes Low when paper is low in
3) the Tray 2 (or 3).
/NO PAPER2 (or 3) Signal from the No Paper Sensor (Photo Sensor of the Feeder 2 (or
3)). This signals Low when the Photo Sensor is actuated.
/FEED2 (or 3) ON (L) Tray 1 Feed Solenoid control signal. The Tray 1 Feed Solenoid (Tray 1
24VDC Feed Solenoid of the Feeder 2 (or 3)) is actuated when this signal is
Low, and deactuated when High.
02/2000
7-35
Table 2 Signal Names
Table 3 Signal Names
500 Sheet Feeder
Wiring Data