Code :

Code: E025
Description: Fusing roller / low temperature error
When 80C is not reached in 100 seconds after start of warming up. When the fusing roller temperature has dropped and remained below 70C for 10 seconds during standby.
Causes: • Fusing Roller Heater Lamp (H1) • Pressure Roller Heater Lamp (H2) • Thermostat (TS1) • Engine Board (PWB-A) • Power Supply Unit (PU)
Remedy: 1 Check the continuity of H1 and H2. NO Replace the H1, H2. - 2 Check the continuity of TS1. NO Replace the TS1. - 3 Check to see if the resistance of TH1 is infinite. (Between CN18-1 and 2 on thermistor side) YES Clean TH1 or replace the Fuser Unit. HEATER NO Replace the PU. Replace the PWB-A.

Code: E026
Description: Fusing roller / high temperature error
When the Fusing Roller temperature is 220°C or higher for 0.1 second. When between 40 seconds and 50 seconds after start of warming up of the Fusing Roller, the Fusing Roller temperature does not rise for one second by 5°C from that at start of fuser warming up.
Causes: • Thermistor (TH1) • Engine Board (PWB-A)
Remedy: 1 Check to see if TH1 is shorted. (Between CN18-1 and 2 on thermistor side) YES Clean TH1. HEATER Replace the Fuser Unit. NO Replace the PU. Replace the PWB-A.

Code: E027
Description: Fusing roller / thermistor error
When the Fusing Roller temperature is 220°C or higher for 0.1 second. When between 40 seconds and 50 seconds after start of warming up of the Fusing Roller, the Fusing Roller temperature does not rise for one second by 5°C from that at start of fuser warming up.
Causes: • Thermistor (TH1) • Engine Board (PWB-A)
Remedy: 1 Check to see if TH1 is shorted. (Between CN18-1 and 2 on thermistor side) YES Clean TH1. HEATER Replace the Fuser Unit. NO Replace the PU. Replace the PWB-A.

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