3–105OPERATIONS AND TIMINGCOPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)VI. SERVICE MODEA. OutlineThe machine’s service mode is grouped into thefollowing six:B. Using Service Mode1. Starting Service Mode1) Open the front door, and insert the door switchactuator.• If you want to make checks as in “I/O displaymode” while making copies, set the appropri-ate copying mode.2) Push the service mode switch (SW850) on theservice mode PCB with a hex key.• The copy counter display indicates ‘1’.• While in copy mode, the copy density indica-tor LED indicates the position of the fixingbelt.• A press on the Reset key ends service mode.Figure 3-6012. Selecting Service Mode Group1) While the copy count indicator is indicating ‘1’,press a key from ‘1’ through ‘6’ on the numerickeypad to select a service mode.2) Press the AE key.• The machine starts the selected service mode,and the copy counter indicates ‘301’. ‘301’means that the mode is the first mode ofservice mode 3.3. Selecting an Item under Each Ser-vice Mode1) While the 100’s of the number indicated on thecopy mode counter (‘301’, for example) is flash-ing, press the numeric keypad to select themode you want to execute.• The copy counter indicator indicates the num-ber, flashing the 100’s.• A press on the Clear key returns to groupselection (‘3’, for example).2) Press the Start key.• The machine starts the selected service mode.No.[1][2][3][4][5][6]DescriptionControl display modeI/O display modeAdjustment modeOperation/inspection modeMachine settings modeCounter modeTable 7-601Service mode switch
