HP Color LaserJet Enterprise CP4020 Service Manual - Page 383
Description, Recommended action, X ERROR, To continue turn off then on, 03 ERROR: DC controller PCA is
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Table 3-14 Control-panel messages (continued) Description Recommended action 56.X ERROR To continue turn off then on A temporary printing error has occurred (XX Turn the product off, and then turn the = 01; illegal input). product on. 57.03 ERROR To continue turn off then on Cartridge fan (FM2) is defective. 1. Reconnect the cartridge fan connector J65, connector J263 on the high-voltage power supply lower, and connector J114 on the DC controller PCA. 2. Turn the product off, and then on. Measure the voltage between connectors J263-16 and J263-18 on the high-voltage power supply lower immediately after the product is turned on. If the voltage changes from 0 V to approximately 24 V, replace the cartridge fan. See Cartridge fan and environmental sensor on page 137. 57.04 ERROR To continue turn off then on Power-supply fan (FM1) is defective. 1. Reconnect the cartridge fan connector J153 on the DC controller PCA. 2. Turn the product off, and then on. Measure the voltage between connectors J153-1 and J153-3 on DC controller PCA immediately after the product is turned on. If the voltage changes from 0 V to approximately 24 V, replace the power-supply fan. See Power-supply fan on page 152. 57.06 ERROR To continue turn off then on Exhaust fan (FM4) is defective. 1. Reconnect the cartridge fan connector J79, connector J264 on the high-voltage power supply lower, and connector J114 on the DC controller PCA. 2. Turn the product off, and then on. Measure the voltage between connectors J264-1 and J264-3 on the high-voltage power supply lower immediately after the product is turned on. If the voltage changes from 0 V to approximately 24 V, replace the exhuast fan. See Exhaust fan and fan duct on page 169. 57.XX ERROR To continue turn off then on 58.XX ERROR To continue turn off then on A temporary printing error has occurred. Turn the product off, and then turn the product on. A temporary printing error has occurred. ● 58.03 ERROR: DC controller PCA is defective. ● 58.04 ERROR: Low-voltage power supply is defective. ● 58.03 ERROR: Turn the product off, and then turn the product on. If the message persists, replace the DC controller PCA. See DC controller PCA and tray on page 161. ● 58.04 ERROR: Reconnect the connector J150 on the DC controller PCA. If the message persists, replace the low-voltage power supply. See Lowvoltage power supply (LVPS) on page 157. ENWW Tools for troubleshooting 351