Xerox 2135DX - Phaser Color Laser Printer, Service Manual

Page: 78 / 199

Service Guide 65
Yellow Toner
Cartridge Present Switch Scan 02
4= L - Deactuated
H - Unit installed Open top cover and pull down the
sensor flag next to rear of the LED head.
Top Cover Switch Switch Scan 03
1= L - Top closed
H - Top opened Open top cover
Right Cover
Switch (Door A) Switch Scan 03
2= L - Cover closed
H - Cover opened Open right-side door
Waste Toner
Sensor Switch Scan 03
3= L - Not full
H - Full Remove the drum units and the transfer
belt. Locate the optical sensor in a hole
below the registration rollers. Interrupt
the sensor by inserting a scrap of paper
not used Switch Scan 03
4= not used
not used Switch Scan 04 not used
not used Switch Scan 05 not used
Manual Bypass
Feeder Home
Sensor Switch Scan 06
1= L - Roller at home
H - Roller not
home Open the top cover and remove the
drum units. Manually rotate the manual
bypass feed roller by turning the white
gear on the right end of the registration
roller.
Manual Bypass
Feeder Paper
Empty Switch Switch Scan 06
2= L - Paper loaded
H - No Paper Toggle the switch located at the
inner-base of the Manual Bypass Feeder
tray next to the pick pad
not used Switch Scan 06
3= not used
Manual Bypass
Feeder OHP
Sensor Switch Scan 06
4= L - Transparency
H - Paper Manually feed a sheet of paper thru the
feeder by rotating the registration roller.
Transparency film causes no change
Tray 1, Size 1
Switch - (Top) Switch Scan 07
1= L - Actuated
H - Deactuated Remove the tray and actuate the sensor
flags at the rear of the tray cavity
Tray 1, Size 2
Switch Switch Scan 07
2= L - Actuated
H - Deactuated
Tray 1, Size 3
Switch Switch Scan 07
3= L - Actuated
H - Deactuated
Tray 1, Size 4
Switch - (Bottom) Switch Scan 07
4= L - Actuated
H - Deactuated
Color Registration
(Front) - 006 Switch Scan 08
1= Density Value
***H Color value in hexidecimal format. The
default is between 000 to 060 when the
sensors are exposed to light. Manually
open the registration shutter to expose
the sensors to light. If the sensor
reading is too high, clean any toner dust
off the sensor lens and test again.
Color Registration
(Rear) - 00A Switch Scan 08
2= Density Value
***H
not used Switch Scan 08
3= not used
not used Switch Scan 08
4= not used
Upper Fuser
Thermistor - 00D Switch Scan 09
1= Encoded fuser
roller temperature Temperature is encoded as a
hexidecimal value. The default is
between 001 and 0D4.
not used Switch Scan 09
2= not used
Switch scans and the sensor and switches test
Switch or sensor Switch scan test Test result Details