COPYRIGHT © 1999 CANON INC. CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)7. BIASUse this item when adjusting the level of the secondary transfer bias to suit variousenvironmental and printing conditions.8. WRITE MEMORYThis memory is used to write the various adjustment data items (e.g., PARAMETER,BIAS) read into the RAM on the printer board to the EEPROM on the printer board andthe EEPROM on the DC controller PCB.• Using WRITE MEMORY1) Select .2) Press the ENTER key to select .3) Using the or key, select ‘YES’.4) Press the ENTER key to execute.5) See that ‘WRITE TO DCON EXECUTING’ is indicated.6) Turn off and then on the power to end.CHAPTER 10 TROUBLESHOOTING10-92DescriptionFor a H/H environment, use it to adjust the sec-ondary transfer bias for single-sided printing orfirst side printing of double-sided printing onplain paper.For a N/N environment, use it to adjust the sec-ondary transfer bias for second side printing ofdouble-sided printing on plain paper.For a H/H environment, use it to adjust the sec-ondary transfer bias for second side printing ofdouble-sided printing on plain paper.For a L/L environment, use it to adjust the sec-ondary transfer bias for second side printing ofdouble-sided printing on plain paperFor a N/L environment, use it to adjust the sec-ondary transfer bias for second side printing ofdouble-sided printing on plain paper.RemarksSettings: 0 to +15Standard: +8Enter setting, and exe-cute ‘WRITE MEMORY’.Adjustment in the field isnot usually needed.Sub MenuTR-N1HTR-N2MTR-N2HTR-N2LTR-N2N/LPrinter board DC controller PCBRAMEEPROMEEPROMWritingWritingDownload free service manual at http://printer1.blogspot.com