Service Manual
Page 84
NVRAM data does not match secure NVRAM (950). Contact the next level of support or Lexmark at 1-800-539-6275. 2-54 Service Manual See "Printhead assembly " on the controller PCB. RIP firmware cannot communicate with secure NVRAM (951). If margin errors ... operator panel printed circuit board (PCB) while secure NVRAM is on page 4-2 (steps 1 through software. Check margin alignments after replacing the operator panel assembly. 4500-E220/E321/E323 NVRAM failure Indicates a problem in the NVRAM. Replace the operator panel assembly. NVRAM...
NVRAM data does not match secure NVRAM (950). Contact the next level of support or Lexmark at 1-800-539-6275. 2-54 Service Manual See "Printhead assembly " on the controller PCB. RIP firmware cannot communicate with secure NVRAM (951). If margin errors ... operator panel printed circuit board (PCB) while secure NVRAM is on page 4-2 (steps 1 through software. Check margin alignments after replacing the operator panel assembly. 4500-E220/E321/E323 NVRAM failure Indicates a problem in the NVRAM. Replace the operator panel assembly. NVRAM...
Service Manual
Page 195
Signal 1 Cartridge data 2 Ground 1 +24 V dc 2 Fan control 1 +24 V dc 2 Ground 3 Motor enable 4 Ground 5 Motor signal 1 Ground 2 Toner signal 3 Light drive 1 Thermistor data 2 Ground 1 2 1 +24 V dc 2 Interlock switch 1 +24 V dc 2 Solenoid control 4500 Connector locations 5-3 Connector J3 Cartridge Chip J4 Fan Control J5 Main Motor J6 Toner Sensor J7 Thermistor J8 Not used J9 Cover Open Switch J10 Paper Pick Solenoid Pin no.
Signal 1 Cartridge data 2 Ground 1 +24 V dc 2 Fan control 1 +24 V dc 2 Ground 3 Motor enable 4 Ground 5 Motor signal 1 Ground 2 Toner signal 3 Light drive 1 Thermistor data 2 Ground 1 2 1 +24 V dc 2 Interlock switch 1 +24 V dc 2 Solenoid control 4500 Connector locations 5-3 Connector J3 Cartridge Chip J4 Fan Control J5 Main Motor J6 Toner Sensor J7 Thermistor J8 Not used J9 Cover Open Switch J10 Paper Pick Solenoid Pin no.
Service Manual
Page 201
Connector J6 Cover open J7 Mirror motor J8 Main motor J9 Network (network printer only) J10 Erase J11 Paper Sensor J12 Solenoid J13 Smart Chip Pin no. 1 1 2 3 1 2 3 4 5 1, 6 2 3 4 5 7 Signal +5 V dc (cover closed) (I) 0 V (cover open) (I) +5 V dc Ground MM_REF_C MM_LOCK_C MM_START_C Ground +24 V dc Ground XPRT_FB XPRT_SPEED_R XPRT_EN_C XPRT_LOCK_C +24 V dc 4500 1, 4 Ground 2 PAPER_IN 3
Connector J6 Cover open J7 Mirror motor J8 Main motor J9 Network (network printer only) J10 Erase J11 Paper Sensor J12 Solenoid J13 Smart Chip Pin no. 1 1 2 3 1 2 3 4 5 1, 6 2 3 4 5 7 Signal +5 V dc (cover closed) (I) 0 V (cover open) (I) +5 V dc Ground MM_REF_C MM_LOCK_C MM_START_C Ground +24 V dc Ground XPRT_FB XPRT_SPEED_R XPRT_EN_C XPRT_LOCK_C +24 V dc 4500 1, 4 Ground 2 PAPER_IN 3