6.9 No Toner Cart or Toner Low
6.9 No Toner Cart or Toner Low
Explanation: The toner sensor circuit detects both the presence of a toner
cartridge and quantity of toner that remains.
The ac signal from the developer roller travels through the toner to the toner
sensor, which acts like an antenna. The strength of the signal received by the
toner sensor varies with the quantity of toner in the EP-ED cartridge.
The HVPSA measures the toner signal and determines the quantity of toner
or whether an EP-ED cartridge is installed. Toner is measured during the
development portion of the xerographic process. EP-ED cartridge checks are
performed during power up, after top door closing, or control panel keying.
Signal diagram reference: See Figures 6–5 and 2–11 for wiring diagrams.
Action: Do the following:
1.
The toner might be damp. Remove the EP-ED cartridge and shake it to
loosen up the toner.
2.
Swap the EP-ED cartridge with a known good unit.
3.
Inspect the toner sensor contacts on the EP-ED cartridge and the connector
block. Replace any damaged parts.
4.
Make sure the HVPSA is correctly installed. Both hold down screws must
be tight and the clips must be holding. See Section 9.4 for installation
instructions.
5.
Remove the HVPSA and inspect the TB403 spring contact.
6.
Swap the following FRUs:
•
DC control board
•
HVPSA
•
HVPSA/Fuser Interconnect
•
HVPSA contact plate guide
Power and Control Panel FIPs 6–13
Summary of Contents for DEClaser 5100
Page 10: ......
Page 13: ...DSG 000172 Notes 1 ...
Page 14: ......
Page 61: ...2 5 HVPSA Figure 2 12 EP ED Cartridge DSG 000612 2 1 3 4 5 6 7 Technical Description 2 25 ...
Page 62: ...2 5 HVPSA DSG 000172 Notes 2 26 Technical Description ...
Page 70: ...3 2 Control Panel Operation DSG 000172 Notes 3 8 Operating the Control Panel ...
Page 90: ......
Page 124: ...7 5 Phantom Jams DSG 000172 Notes 7 8 FIPs for Fixing Paper Jams ...
Page 167: ...9 12 Board DC Control 1 2 4 5 7 8 9 6 3 10 DSG 000657 Removing and Replacing FRUs 9 31 ...
Page 224: ...10 1 Field Replaceable Units DSG 000172 Notes 10 4 FRU Part Numbers ...
Page 254: ...B 4 Connecting to OpenVMS VAX or ULTRIX Systems DSG 000172 Notes B 10 General Information ...
Page 264: ...D 3 Tools DSG 000172 Notes D 4 Training Documentation and Tools ...
Page 274: ......