Error codes konica minolta

Code: C3305
Description:
Reverse paper cooling fan/1 failure to turn. The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Causes:
• Reverse paper cooling fan/1 (FM4) • Paper feed/transport drive board (PFTDB)
Remedy:
1. Check the connector between FM4-relay CN283-relay CN280-relay CN279-relay CN271B-PFTDB CN2 for proper connection and correct as necessary. 2. Check the fan for possible overload and correct as necessary. 3. FM4 load check • Check code: 42 • Multi code: 14, 15 • Control signal: PFTDB CN2-13 (REM), PFTDB CN2-15 (LOCK) • Location of electrical component: 5-P 4. Replace FM4. 5. PFTDB F14 conduction check 6. Replace PFTDB.