Description: Color regist test pattern failure • During pre-pattern detection, pre-pattern edge (start/ end point of effective area) is not detected within the pre-pattern search area. • During detection of regist pattern at vertical/horizontal direction, pattern edge (start/end point of effective area) is not detected within the pattern search area of each unit.
Causes: • Transfer belt unit • PH unit • Expansion control board (EXCB) • Base board (BASEB)
Remedy: 1. Wipe clean the surface of the transfer belt with a soft cloth, if it is dirty. 2. Replace the transfer belt unit if the transfer belt is damaged. 3. Replace the PH unit. 4. Replace EXCB. 5. Replace BASEB.
Code: P-22
Description: Color regist adjust failure • The gap between maximum and minimum value of deviations among each color (the values before averaging) is over the predetermined value. • Average deviation exceeds the predetermined value. • In case the final value of the deviation after stabilization exceeds the predetermined value, it is regarded as failure even if the average deviation is within tolerance.
Remedy: 1. Slide out the drum/developing unit and reinstall it in position. 2. Reinstall or reconnect IDCS/Fr, connectors connecting between IDCS/Fr-relay CN77-BASEB CN15E, if any of the foregoing parts is installed or connected improperly. 3. Reinstall or reconnect IDCS/Rr, connectors connecting between IDCS/Rr-relay CN77-BASEB CN15E, if any of the foregoing parts is installed or connected improperly. 4. Check the vertical transport guide for installed position and correct as necessary. 5. Replace BASEB.
Code: P-27
Description: Secondary transfer ATVC failure An abnormal average value is detected during an adjustment of the second transfer ATVC value.
Causes: • High voltage unit (HV) • Base board (BASEB) • Image transfer entrance guide • 2nd transfer assy • Transfer belt unit
Remedy: 1. Check the contact between the roller opposed to the 2nd transfer roller in the transfer belt unit and the grounding terminal. Clean the joint or correct if necessary. 2. Check the image transfer entrance guide for proper installation and correct if necessary. 3. Check that the spring does not come off during the pressure operation of the 2nd transfer roller and correct if necessary. 4. Check the contact at the joint of the 2nd transfer assy and HV. Clean the joint or correct if necessary. 5. Replace the transfer belt unit. 6. Replace HV. 7. Replace BASEB.
Code: P-33
Description: LD malfunction The DETOUT signal of the LD drive detected malfunction consecutively for the predetermined frequency.
Remedy: 1. Replace the PH unit. 2. Replace EXCB. 3. Replace BASEB.
Code: P-34
Description: Atmospheric pressure sensor failure An error of the atmospheric pressure sensor (ATMPRS) is detected.
Causes: • Atmospheric pressure sensor (ATMPRS) • CPU board (CPUB) • Base board (BASEB)
Remedy: 1. Check the connector between ATMPRS-BASEB CN27E for proper connection and correct as necessary. 2. Clean the cover on ATMPRS, if it is dirty. 3. Replace CPUB. 4. Replace BASEB.
Code: P-5, P-28
Description: IDC sensor/Fr failure, IDC sensor/Rr failure • During IDC sensor light intensity correction, output voltage detected for all eight sample patterns are 3.35 V or more. • During IDC sensor light intensity correction, sensor output voltage for light intensity selected after the correction is under 0.7 V. • During IDC base surface detective control, sensor output voltage detected is under 0.7 V or over 3.35V. • During image stabilization (gamma correction control), detected output value for IDC sensor did not go below threshold (half the value of what is detected by IDC sensor on the belt surface) for three consecutive times (position of the pattern end is not detected). • During image stabilization (gamma correction control), sensor’s output value of each color for hyper 0 gradation after the primary approximation is half the detection level on the belt surface or under.
Causes: • IDC sensor/Fr (IDCS/Fr) • IDC sensor/Rr (IDCS/Rr) • High voltage unit (HV) • Transfer belt unit • Base board (BASEB)
Remedy: 1. Wipe clean the surface of the transfer belt with a soft cloth, if it is dirty. 2. Replace the transfer belt unit if the transfer belt is damaged. 3. Reinstall or reconnect IDCS/Fr, connectors connecting between IDCS/Fr-relay CN77-BASEB CN15E, if any of the foregoing parts is installed or connected improperly. 4. Reinstall or reconnect IDCS/Rr, connectors connecting between IDCS/Rr-relay CN77-BASEB CN15E, if any of the foregoing parts is installed or connected improperly. 5. Clean IDCS/Fr or IDCS/Rr if it is dirty. 6. Check the connector between HV CN1-BASEB CN26E, HV CN2-BASEB CN21E for proper connection. 7. Open/close the front door, run an image stabilization sequence, and select [State Confirmation] -> [Level History 1] to check the IDC value. IDC1: IDCS/Fr IDC2: IDCS/Rr If the value is 1.0 V or less, replace IDCS/Fr or IDCS/Rr. 8. Replace BASEB.