Brother International HL-2600CN Service Manual - Page 312
Paper Sensor D.EN, Replace the MCTL PWB 2.
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Error Code E3 Concerned Part Paper Sensor (D.EN) Is a belt cartridge properly installed ? YES Does a transfer drum rotate lightly ? YES Confirm the connection of connector. Is DCN4 of IOD1 properly connected with a connector of paper sensor (D.EN) ? Check the voltage: +5V-1 NO Re-install or replace the belt cartridge. NO Is an encoder plate deformed ? YES Is a rotation torque excessive ? Replace the transfer drum. NO NO Connect them properly Is E3 error cleared ? NO Is E3 error cleared ? YES YES Job is complete. Is the voltage +5V between DCN4-1 and 3 ? NO Is the voltage +5V between DCN2-1 and 4 ? YES Replace the paper sensor (D.EN). YES Replace the IOD1 PWB 2. NO Replace a low voltage power supply (LVPS). NO Is E3 error cleared ? YES Job is complete. Is E3 error cleared ? NO Replace the MCTL PWB 2. MCTL 1LCN IOD1 31 HPSEN-N 31 DCN4 Paper Sensor (D.EN) Relay connector LVPS ACN1 DCN1 1 +5V-S 1 1 DCN2 2 HPSEN-N 2 2 3 SGND 3 3 1 +5V-1 1 4 SGND 4
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