Tektronix 1235N - Phaser Color Laser Printer Service Manual page 81

Switch scans and the sensor and switches test
Switch or Switch scan test
sensor
not used Switch Scan 11
3=
Duplex Front Switch Scan 11
Sensor 4=
Tray 2, Size 1 Switch Scan 12
Switch - (Top) 1=
Tray 2, Size 2 Switch Scan 12
Switch 2=
Tray 2, Size 3 Switch Scan 12
Switch 3=
Tray 2, Size 4 Switch Scan 12
Switch - (Bottom) 4=
Tray 2 No Paper Switch Scan 13
Sensor 1=
Tray 2 Low Paper Switch Scan 13
Sensor 2=
not used Switch Scan 13
3=
not used Switch Scan 13
4=
not used Switch Scan 14
1=
not used Switch Scan 14
2=
Tray 2 Feed Switch Scan 14
Sensor 3=
not used Switch Scan 14
4=
Tray 3, Size 1 Switch Scan 15
Switch - (Top) 1=
Tray 3, Size 2 Switch Scan 15
Switch 2=
Tray 3, Size 3 Switch Scan 15
Switch 3=
Tray 3, Size 4 Switch Scan 15
Switch - (Bottom) 4=
Tray 3 No Paper Switch Scan 16
Sensor 1=
Tray 3 Low Paper Switch Scan 16
Sensor 2=
not used Switch Scan 16
3=
not used Switch Scan 16
4=
not used Switch Scan 17
1=
not used Switch Scan 17
2=
Tray 3 Feed Switch Scan 17
Sensor 3=
Test result Details
not used
L - Deactuated Pull out the duplex unit. Lift its cover.
H - Actuated Place a sheet of paper inside on the
sensor flag. Close the cover. Reinsert
the duplex unit in the printer.
L - Actuated Remove the tray and actuate the sensor
H - Deactuated flags on right side of tray cavity
L - Actuated
H - Deactuated
L - Actuated
H - Deactuated
L - Actuated
H - Deactuated
L - Actuated Pull Tray 2 out to test sensor
H - Deactuated
L - Actuated Pull Tray 2 out to test sensor
H - Deactuated
not used
not used
not used
not used
L - Actuated Open front door and toggle sensor flag
H - Deactuated behind feed rollers
not used
L - Actuated Remove the tray and actuate the sensor
H - Deactuated flags on right side of tray cavity
L - Actuated
H - Deactuated
L - Actuated
H - Deactuated
L - Actuated
H - Deactuated
L - Actuated Pull Tray 3 out to test sensor
H - Deactuated
L - Actuated Pull Tray 3 out to test sensor
H - Deactuated
not used
not used
not used
not used
L - Actuated Remove tray 3 and toggle sensor flag
H - Deactuated behind feed rollers
Service Guide 67