Oki ML490 Maintenance Manual

Also see for ML490 Series: User guide Installation Installation User guide Safety & warranty

Contents

Oki ML490 Maintenance Manual Manual pdf 89 page image

42114101 Rev.1 89 /5.2 LubricationThis printer is designed to be maintenance free and requires no lubrication during normaloperation. However it is necessary to apply lubricant in case the printer is disassembled,reassembled, cleaned or parts have been changed.(1) Cleaning timeRemarks:1) Turn off the power before cleaning.2) Make sure that paper dust will not fall inside of the machine.• Cleaning period:6 months of operation or 300 hours of operation, whichever the earlier.• Cleaning points:Carriage shaft and surroundings: Remove paper and ribbon dust.Paper path: Clean stains and dusts.Paper End Sensor Remove the dust on the Sensor.(2) Lubricant• Pan motor oil (or equivalent): PM• Molicort (or equivalent): EM-30L(3) Amount of lubricant• Medium amount A : Apply three to four drops of oil, or 0.008 inch (0.2 mm) thick grease.• Small amount B : Apply one drop of oil (0.006±0.002 g)(4) Areas to AvoidNo. Do not lubricate Reason Remarks1 Platen assembly To prevent stained paper(rubber face) and illegal paper feed.2 Pressure roller (rubber To prevent stained paper Pay attention not to putface) the grease on the rubberface of the pressure roller.3 Carriage shaft To stabilize carriagetraveling load4 Ink ribbon To prevent blurring of printimage5 Pin tractor To prevent stained paper6 Flexible cable To prevent loose connectionand crack7 Motor PCB To prevent loose connection8 Connector terminals To prevent loose connection