Description: Uneven Density Print density is uneven between left and right.
Causes: 1. The pressure force on the left and right springs of the transfer roller is not even, the springs are damaged, the transfer roller is improperly installed, or the transfer roller bushing or holders are damaged. 2. The life of the Toner cartridge has expired. 3. The toner level is not even on the toner cartridge roller due to the damaged blade or low toner.
Remedy: 1. Replace both the left and right bush and spring assemblies. 2. Replace the toner cartridge and try to print out 3. Gently shake the toner cartridge and try printing again. If the problem persists replace the toner cartridge.
Code: 08
Description: Background Light dark background appears in whole area of the printing.
Causes: 1. Printing large quantities of low coverage (2%) pages or the printer has not been used for a long time. 2. Is a recycled toner cartridge be used? 3. Has the life span of the toner cartridge ended? 4. Is the movement(Up and Down) of the transfer roller smooth? 5. Is the HVPS normal?
Remedy: 1. The toner cartridge is basically designed to print 3,000 sheets with 5% image. If it prints more than 3,600 sheets with 2% coverage, a background can occur. 2. The A/S is not guaranteed if using a recycled toner cartridge. Note try shaking the toner cartridge gently from side to side. If the problem persists replace the toner cartridge. 3. Replace the toner cartridge when its life is expired. 4. Clean the transfer roller bushes. 5. Clean the high voltage charge terminals. If this does not resolve the problem replace the HVPS.
Code: 09
Description: Ghost (1) Ghost occurs at 75.5 mm intervals of the OPC drum in the whole printing.
Causes: 1. Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the electrode of the Toner cartridge. 2. Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the one in the HVPS board. 3. The life of toner cartridge is expired. 4. Transfer roller life (60,000 sheets) has expired. 5. Low ambient temperature (below 10°C). 6. Damaged cleaning blade in the toner cartridge.
Remedy: 1 and 2. Clean all HV contacts, If problem persists replace the HVPS. If problem still persists replace the Main PBA 3. Replace the toner cartridge and try to print out. 4. Check the transfer roller lifetime and replace it. 5. Wait about 30 minutes after power on before using printer. 6. Replace the toner cartridge and try to print out again
Code: 10
Description: Ghost (2) Ghost occurs at 75 mm intervals of the OPC drum in the whole printing. (When printing on card stock or transparencies using manual feeder)
Causes: When printing on card stock, thicker than normal paper or transparencies, such as OHP, a higher transfer voltage is required.
Remedy: Ensure that the correct paper type is selected in the printer driver or application software. Remember to set back to normal paper after use.
Code: 11
Description: Ghost (3) Ghost occurs at 66.3 or 75.5 mm intervals.
Causes: Fuser contamination.
Remedy: 1. Disassemble the fuser and remove any contamination on the rollers. Clean any contamination from between the Thermistor and the Heat roller. (Caution: Take care not to deform the rollers.)
Code: 12
Description: Ghost (4) A White ghost occurs in a black image printing at 32 mm intervals.
Causes: 1. The life of the developer may be expired. 2. Abnormal output from the HVPS. (Run EDC mode – see sections 6.1.2 and 6.1.3)
Remedy: 1. Problem in the toner cartridge, replace the toner cartridge and try to print out again. 2. Check the HVPS supply voltage. Clean all HV terminals on the cartridge and on the set. Replace the HVPS if the problem persists.