CHAPTER 11 TROUBLESHOOTINGCOPYRIGHT © 1999 CANON INC. CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-5110. Checking the Photointerrupters1) Set the meter range to 12 VDC.2) Connect the - probe [1] of the meter to the grounding terminal [2].SensorPS1Scanner home positionsensor (SCHP)PS2Lens home position sen-sor (LHP)PS4Vertical path roller pa-per sensor (PDP)Q751Pre-registration rollerpaper sensor (RPD)ChecksDuring standby, movethe scanner by hand.During standby, movethe lens mount byhand.During standby, movethe detecting lever byhand.During standby, movethe detecting lever byhand.When the light-block-ing plate is at PS1,When the light-block-ing plate is not at PS1,When the light-block-ing plate is at PS2,When the light-block-ing plate is not at PS2,When the light-block-ing plate is at PS4,When the light-block-ing plate is not at PS4,When the light-block-ing plate is at Q751,When the light-blocking plate is not atQ751,ConnectorJ101-3J109-10J132-5J108-1Voltage(approx.)5V0V5V0V5V0V0V5V[1][2]Table 11-209Figure 11-2683) Make checks as instructed.Reference:The photointerrupers other than those shown in Table 11-209 are connected in a matrix, hencethe omission from the table.
