3. REPAIR3-1. Notes on Service Part Replacement (and Disassembling / Reassembling)*1: General notes:- Make sure that the flexible cables and wires in the harness are in the proper position and connected correctly.[See 3-2. Special Notes on Repair Servicing, (1) Flexible cable and harness wiring, connection, for details.]- Do not drop the ferrite core, which may cause damage.- Protect electrical parts from damage due to static electricity.- Before removing a unit, after removing the power cord, allow the printer to sit for approx. 1 minute (for capacitor discharging to protect the logic boardass'y from damages).- Do not touch the timing slit strip film and timing slit disk film. No grease or abrasion is allowed.- Protect the units from soiled with ink.- Protect the housing from scratches.- Exercise caution with the red screws, as follows:i. The red screws of the paper feed motor may be loosened only at replacement of the paper feed motor unit (DO NOT loosen them in other cases).ii. DO NOT loosen the red screws on both sides of the main chassis, securing the carriage shaft positioning (they are not adjustable in servicing).Service part Notes on replacement *1 Adjustment / settings Operation checkLogic board ass'yQM2-1616- Before removal of the logic boardass'y, remove the power cord, andallow for approx. 1 minute (fordischarge of capacitor's accumulatedcharges), to prevent damages to thelogic board ass'y.- Before replacement, check the wasteink amount (by service test print orEEPROM information print). If thewaste ink amount is 7% or more, alsoreplace the bottom case unit or the inkabsorbers when replacing the logicboard ass'y. See 3.3. Adjustment /Settings, (6) Service mode, for details.[See 3-3. Adjustment / Settings, (6)Service mode, for details.]After replacement:1. Initialize the EEPROM.2. Reset the waste ink counter.3. Set the destination in the EEPROM.4. Correct the CD-R and automatic printhead alignment sensors.[See 3-3. Adjustment / Settings, (6)Service mode, for details of 1 to 4]5. Perform the print head alignment inthe user mode.- EEPROM information print- Service test print- Printing via parallel or USBconnection- Direct printing from a digital cameraBottom case unitQM2-1583After replacement:1. Reset the waste ink counter.[See 3.3. Adjustment / Settings, (6)Service mode.]- Service test printInk absorberQC1-5381 / 5382 / 5383 /5384 / 5385 / 5386 / 5387 /5388 / 5389 / 5390Carriage unitQM2-1586At replacement:1. Apply grease to the sliding portions.[See 3-3. Adjustment / Settings, (3)Grease application.]After replacement:1. Correct the CD-R and automatic printhead alignment sensors.[See 3.3. Adjustment / Settings, (6)Service mode.]2. Perform the print head alignment inthe user mode.- Service test print (Confirm CD-Rand automatic print head alignmentsensor correction.)Paper feed motor unitQK1-0550- The red screws securing the paper feedmotor are allowed to be loosened.(DO NOT loosen any other redscrews.)At replacement:1. Adjust the paper feed motor.[See 3-3. Adjustment / Settings, (1)Paper feed motor adjustment.]Shaft liftQC1-4331At replacement:1. Apply grease to the sliding portions.[See 3.3. Adjustment / Settings, (3)Grease application.]- Service test printTiming slit strip filmQC1-5373- Upon contact with the film, wipe thefilm with ethanol.- Confirm no grease is on the film.(Wipe off any grease thoroughly withethanol.)- Do not bend the filmAfter replacement:1. Perform the print head alignment inthe user mode.- Service test printTiming slit disk filmQC1-4372Print headQY6-0055After replacement:1. Perform the print head alignment inthe user mode.- Service test print1 - 6