• Code: 05-350, 05-352
• Description: DADH CVT Sensor Failure RAP 05-350 The DADH CVT sensor does not detect the lead edge of the document within the correct time in the forward mode. 05-352 The DADH CVT sensor does not detect the lead edge of the document within the correct time in the reverse mode.
• Remedy: NOTE: To get access to the DADH CVT sensor, remove the DADH top cover, PL 5.20 Item 15. Enter dC330 code 05-350 to check the DADH CVT sensor, Q05-350. Activate Q05- 350. The display changes. Y↓N→Go to Flag 1. Check Q05-350. References: • GP 11 How to Check a Sensor. • P/J186 and P/J191, DADH PWB. • 01D +3.3V Distribution RAP. • 01B 0V Distribution RAP, refer to the 3.3V return. Install new components as necessary: • DADH CVT sensor, PL 5.20 Item 12. • DADH PWB, PL 5.10 Item 5. Remove the DADH rear cover, PL 5.10 Item 1. Hold the top cover interlock switch closed. Enter dC330 code 05-030 to check the DADH CVT motor, MOT05-030. MOT05-030 runs. Y↓N→Go to the 05D DADH Motor Failure RAP. The CVT roll rotates. Y↓N→Perform the steps that follow: • Check the CVT motor drive belt, PL 5.25 Item 11. • Check the CVT motor tension spring. Make sure that the CVT motor drive belt tension is correct, ADJ 5.1. • Check the CVT roll pulley, refer to GP 7. If necessary, install a new DADH CVT roll, PL 5.25 Item 5. The fault only occurs in duplex mode (fault code 05-352). Y↓N→Go to Final Actions. NOTE: The exit roll idlers remain lowered for 30 seconds. Enter dC330 code 05-050 to check the DADH duplex solenoid, SOL05-050, to lower the exit roll idlers. The exit roll idlers lower. Y↓N→Go to Flag 2. Check SOL050-050. References: • GP 12 How to Check a Solenoid or Clutch. • P/J181, DADH PWB. • 01D +3.3V Distribution RAP. • 01B 0V Distribution RAP, refer to the 3.3V return. Install new components as necessary: • DADH duplex solenoid, PL 5.30 Item 4. • DADH PWB, PL 5.10 Item 5. • Baffle assembly, PL 5.30 Item 5. NOTE: During normal operation, the exit roll idlers remain raised (closed) in simplex mode. In duplex mode, the exit roll idlers remain raised unless the document is longer than 280mm (11 inches). The exit roll idlers raise and lower while feeding longer documents in duplex mode. Exit the diagnostics mode. Close the DADH top cover. Make two copies in duplex mode. Check that the second document is held in the feed rolls until the first document is fed into the output tray. The feed rolls held the second document. Y↓N→Go to the 05E DADH Feed Clutch Failure RAP. The fault is caused if the DADH feed motor runs too slowly in reverse, refer to the 05D DADH Motor Failure RAP. If the fault continues, go to Final Actions. Final Actions Perform the steps that follow. Install new components as necessary: • Check that the CVT roll is clean and rotates freely, refer to ADJ 5.4. • Check that the takeaway roll, PL 5.35 Item 6 is clean, refer to ADJ 5.4. If necessary, install a new takeaway roll. • Check that the CVT sensor, Q05-350 is installed correctly, PL 5.20 Item 12. • Check the takeaway roll static eliminator and ground harness, PL 5.35 Item 7. • Make sure that the DADH ground harness is connected correctly, PL 5.10 Item 11. • Make sure the feed motor drive belt tension is correct, ADJ 5.1. • DADH feed assembly, PL 5.15 Item 18. If the fault continues, make sure that documents correctly exit the previous sensor in the document path. Refer to the 05-335 DADH Takeaway Sensor Failure RAP.

• Code: 06-020
• Description: ROS Motor Failure RAP 06-020. This fault code has two failure modes. 1. The ROS motor ready signal was not received by the IOT PWB within the set time of the ROS being powered on. 2. The IOT PWB recognizes a change of state of the ROS motor ready signal during operation.
• Remedy: Switch off the machine, then switch on the machine, GP 14. The 06-020 fault still exists. Y↓N→Perform SCP 6 Final Actions. Enter the dC330 output code 06-020 and listen for the ROS motor. The ROS motor gives a distinctive ascending frequency sound, of a short duration (5 to 6 seconds) during transition from standby to run. Y↓N→The xerographic module is fully home and the front door is fully closed or the front door interlock is cheated. Y↓N→Correct the condition. If necessary go to the 01-300 Front Door Open RAP. Go to Flag 1. Check the following voltages at P/J18 on the LVPS: • +24V between pins 1 and 2. • +3.3V between pins 3 and 4. The voltages are good. Y↓N→Go to the relevant RAP: • 01B 0V Distribution RAP, refer to the 3.3V return and 24V return. • 01D +3.3V Distribution RAP. • 01G +24V Distribution RAP. Enter the dC330 output code 06-020 to run the ROS motor. Go to Flag 2. 0V is available at P/J2 pin 1 on the IOT PWB. Y↓N→Go to Flag 3. 0V is available at P/J2 pin 6 on the IOT PWB. Y↓N→Perform OF7 IOT PWB Diagnostics RAP before a new IOT PWB is installed, PL 1.10 Item 2. NOTE: The ROS must be removed from the machine, to disconnect P/ J120 and P/J121. The ROS PWB where P/J120 and P/J121 are connected may not be marked with the correct PJ numbers. P/J120 can be identified as a four way power harness. P/J121 can be identified as a seven way signal harness. Go to Flag 1, Flag 2 and Flag 3. Disconnect P/J120 and P/J121 and check the wiring. The wiring is good. Y↓N→Repair the wiring. Install a new ROS, PL 6.10 Item 4. Perform OF7 IOT PWB Diagnostics RAP before a new IOT PWB is installed, PL 1.10 Item 2. Go to Flag 2. 0V is available at P/J2 pin 1. Y↓N→NOTE: The ROS must be removed from the machine, to disconnect P/J120 and P/J121. The ROS PWB where P/J120 and P/J121 are connected may not be marked with the correct PJ numbers. P/J120 can be identified as a four way power harness. P/J121 can be identified as a seven way signal harness. Check the continuity of the seven way signal harness between P/J2 and P/J121. The harness is good. Y↓N→Install a new ROS power distribution/communication harness, PL 6.10 Item 5. Install a new ROS, PL 6.10 Item 4. If the fault condition persists, perform the following: • Check the condition of the associated wiring and connectors. Repair the wiring or install new components as necessary. • Perform OF7 IOT PWB Diagnostics RAP before a new IOT PWB is installed, PL 1.10 Item 2. • Install a new ROS, PL 6.10 Item 4.

• Code: 06-340
• Description: ROS Laser Failure RAP 06-340. The IOT PWB has not detected the ROS laser reaching the operating speed.
• Remedy: Go to Flag 3. Connect a service meter to P/J2 pin 7 and make a set of 5 copies. 0V is measured at P/J2 pin 7 on the IOT PWB during run. Y↓N→The xerographic module is fully home and the front door is fully closed or the front door interlock is cheated. Y↓N→Correct the condition. Go to Flag 1. Disconnect P/J18 from the LVPS. Check the following voltages on the LVPS: • +24V between pins 1 and 2. • +3.3V between pins 3 and 4. The voltages are good. Y↓N→Go to the relevant RAP: • 01B 0V Distribution RAP, refer to the 3.3V return and 24V return. • 01D +3.3V Distribution RAP. • 01G +24V Distribution RAP. Enter the dC330 output code 06-020. Go to Flag 2. The ROS motor gives a distinctive ascending frequency sound, of a short duration (5 to 6 seconds) during transition from standby to run. Y↓N→Go to the 06-020 ROS Motor Failure RAP. NOTE: The ROS must be removed from the machine, to disconnect P/J122 and P/J121. The ROS PWB where P/J122 and P/J121 are connected may not be marked with the correct PJ numbers. P/J122 can be identified as a four way power harness. P/J121 can be identified as a seven way signal harness. Check the wiring at Flag 1, Flag 2 and Flag 3. The wiring is good. Y↓N→Repair the wiring or install new harness, PL 6.10 Item 5. Install a new ROS, PL 6.10 Item 4. Go to Flag 4. Check P/J113 on the single board controller PWB is securely connected. If the fault is still present, remove the ROS. Go to Flag 4. Ensure that PJ122 on the ROS is securely connected. If the fault is still present, go to Flag 4 and check the continuity of the ROS data cable ( P/J113 to P/J122). The ROS data cable is good. Y↓N→Install a new ROS power distribution/communications harness, PL 6.10 Item 5. Install new parts in the following order: • ROS, PL 6.10 Item 4. • Single board controller PWB, PL 3.24 Item 3. • Perform OF7 IOT PWB Diagnostics RAP before a new IOT PWB is installed, PL 1.10 Item 2.

• Code: 07-301
• Description: Tray 1 Open During Run RAP 07-301 Tray 1 was opened during run when the paper is fed from tray 1.
• Remedy: Enter dC330 code 07-301 tray 1 home switch, S07-301. Press Start. Open and fully close the tray. The display changes. Y↓N→Go to Flag 1. Check S07-301. Refer to: • GP 13 How to Check a Switch. • Tray 1 home (H) +5V. Check at the switch terminal on the PWB. • 01E +5V Distribution RAP. • 01B 0V Distribution RAP. Install new components as necessary: • Tray 1 and 2 control PWB, PL 7.10 Item 2. Perform the following: • Check the paper size leaf spring is mounted correctly, PL 7.10 Item 3. • If TAG 101 has not been struck then install a paper feed module frame repair kit, PL 31.14 Item 4. • Check the actuator cam on the paper tray. • If the problem continues, install new Tray 1 and 2 control PWB, PL 7.10 Item 2.

• Code: 07-302
• Description: Tray 2 Open During Run RAP 07-302 Tray 2 was opened during run when the paper is fed from tray 2.
• Remedy: Enter dC330 code 07-302 tray 2 home switch, S07-302. Press Start. Open and fully close the tray. The display changes. Y↓N→Go to Flag 1. Check S07-302. Refer to: • GP 13 How to Check a Switch. • Tray 1 home (H) +5V. Check at the switch terminal on the PWB. • 01E +5V Distribution RAP. • 01B 0V Distribution RAP. Install new components as necessary: • Tray 1 and 2 control PWB, PL 7.10 Item 2. Perform the following: • Check the paper size leaf spring is mounted correctly, PL 7.10 Item 3. If TAG 101 has not been struck then install a paper feed module frame repair kit, PL 31.14 Item 4. • Check the actuator on the paper tray. • If the problem continues, install new Tray 1 and 2 control PWB, PL 7.10 Item 2.

• Code: 07-303A
• Description: Tray 3 Open During Run RAP (W/O TAG 151)
• Remedy: Enter dC330 code 07-303 tray 3 home switch, S07-303. Press Start. Open and fully close the tray. The display changes. Y↓N→Go to Flag 1. Check S07-303. Refer to: • GP 13 How to Check a Switch. • P/J392, HCF control PWB. • 01E +5V Distribution RAP. • 01B 0V Distribution RAP. Install new components as necessary: • Tray 3 home switch, PL 7.20 Item 4. • HCF control PWB, PL 7.20 Item 2. Check the switch holder, PL 7.20 Item 3. If the problem continues, install new components as necessary: • Tray 3 home switch, PL 7.20 Item 4. • HCF control PWB, PL 7.20 Item 2.

• Code: 07-303B
• Description: Tray 3 Open During Run RAP (W/TAG 151)
• Remedy: Enter dC330 code 07-303 tray 3 home sensor, Q07-303. Press Start. Open and fully close the tray. The display changes. Y↓N→Go to Flag 1. Check Q07-303. Refer to: • GP 11 How to Check a Sensor. • P/J1, HCF control PWB. • 01E +5V Distribution RAP. • 01B 0V Distribution RAP. Install new components as necessary: • Tray 3 home sensor, PL 7.21 Item 4. • HCF control PWB, PL 7.21 Item 2. Check the sensor holder, PL 7.21 Item 3. If the problem continues, install new components as necessary: • Tray 3 home sensor, PL 7.21 Item 4. • HCF control PWB, PL 7.21 Item 2.

• Code: 07-304A
• Description: Tray 4 Open During Run RAP (W/O TAG 151)
• Remedy: Enter dC330 code 07-304 tray 4 home switch, S07-304. Press Start. Open and fully close the tray. The display changes. Y↓N→Go to Flag 1. Check S07-304. Refer to: • GP 13 How to Check a Switch. • P/J392, HCF control PWB. • 01B 0V Distribution RAP. Install new components as necessary: • Tray 4 home switch, PL 7.20 Item 4. • HCF control PWB, PL 7.20 Item 2. Check the switch holder, PL 7.20 Item 3. If the problem continues, install new components as necessary: • Tray 4 home switch, PL 7.20 Item 4. • HCF control PWB, PL 7.20 Item 2.