Dell 1815 Mono Laser Service Manual

Also see for 1815 Mono Laser: Owner's manual

Contents

Dell 1815 Mono Laser Service Manual Manual pdf 85 page image

Alignment & AdjustmentsService Manual 6-156.4.4 Machine TestSWITCH TESTUse this feature to test all keys on the operation control panel. The result is displayed on the LCDwindow each time you press a key.MODEM TESTUse this feature to hear various transmission signals to the telephone line from the modem and tocheck the modem. If no transmission signal sound is heard, it means the modem part of the mainboard malfunctioned.DRAM TESTUse this feature to test the machine's DRAM. The result appears in the LCD display.If all memory is working normally, the LCD shows << O K >>ROM TESTUse this feature to test the machine'S ROM. The result and the software version appear in the LCDdisplay.• FLASH VER : 1.00 V• ENGINE VER :1.00VPATTERN TESTUsing this pattern printout, you can check if the printer mechanism is functioning properly.It is needed in the production progress. Service person doesn't need to use it.SHADING TESTThe function is to get the optimum scan quality by the specific character of the CCD(ChargeCoupled Device). If the copy image quality is poor , perform this function to check the conditionCCD unit.< Method >1. Select the [ADJUST SHADING] at theTECH MODE.2. Push the SET UP button then an imagewill be scanned.3. After the scan, CCD SHADING PRO-FILE will be print out.4. If the printed image is dif ferent to theimage, the CCD is defect.NOTICE : When you test CCD, make surethat the cover is closed.