Xerox 1235/DX Service Guide - Page 78

Switch scans and the sensor and switches test Switch or sensor Tray 1 No Paper Sensor Tray 1 Low Paper Sensor Cassette Entrance Manual Bypass Feeder Entrance/ Registration sensor Belt Entrance Switch scan test Switch Scan 00 1= Switch Scan 00 2= Switch Scan 00 3= Switch Scan 00 4= Switch Scan 01 1= Exit Sensor Switch Scan 01 2= Stack Full Sensor Switch Scan 01 3= not used Switch Scan 01 4= Black Toner Switch Scan 02 Cartridge Present 1= Cyan Toner Switch Scan 02 Cartridge Present 2= Magenta Toner Switch Scan 02 Cartridge Present 3= Yellow Toner Switch Scan 02 Cartridge Present 4= Top Cover Switch Switch Scan 03 1= Front Cover Switch Scan 03 Switch 2= Waste Toner Switch Scan 03 Sensor 3= not used not used not used Manual Bypass Feeder Home Sensor Switch Scan 03 4= Switch Scan 04 Switch Scan 05 Switch Scan 06 1= Manual Bypass Feeder Paper Empty Switch Switch Scan 06 2= Test result Details L - Paper present H - No paper L - Paper level OK H - Low paper L - No paper H - Paper present L - No paper H - Paper present Pull main tray out to test sensor Pull main tray out to test sensor Open front door and toggle sensor flag behind feed rollers Open front door and push sheet of paper into paper path leading to the transfer unit L - Paper present H - No paper L - No paper H - Paper present L - No paper H - Stack full Open front door and push sheet of paper into paper path leading to the transfer unit. Manually rotate the registration roller (use the thumbwheel on the left end of the roller) to feed the paper to the transfer belt. Toggle sensor flag behind the fuser. Remove the fuser if necessary Toggle the sensor flag at the exit bin not used L - Deactuated H - Unit installed L - Deactuated H - Unit installed L - Deactuated H - Unit installed L - Deactuated H - Unit installed L - Top closed H - Top opened L - Cover closed H - Cover opened L - Not full H - Full Open top cover and actuate sensor flag next to LED head. Open top cover and actuate sensor flag next to LED head. Open top cover and actuate sensor flag next to LED head. Open top cover and actuate sensor flag next to LED head. Open top cover Open front cover Remove the drum unit caddy and the transfer belt. Locate the sensor below the registration rollers. Interrupt the sensor with a scrap of paper not used L - Roller at home H - Roller not home L - Paper loaded H - No Paper not used not used Open the top cover and remove the drum unit caddy. Manually rotate the manual bypass feed roller by turning the white gear on the right end of the roller. Toggle the switch located at the inner-base of the Manual Bypass Feeder tray Service Guide 65