HP 1200 Service Manual - Page 157

Paper path check If paper is not being picked up or is not moving through the paper path, you might want to observe all of the paper motion activities. Overriding the door interlock (SW301) allows you to observe: ! motor rotation ! solenoid action ! kick plate motion ! paper pickup roller motion ! drive roller, transfer roller, fuser roller and gear, and delivery roller motion To override SW301 21 Figure 79. Overriding SW301 1 Remove the left side cover. (See "Left side cover" on page 80.) 2 Install the toner cartridge, which will press SW301. 3 Press the laser/scanner interlock switch (callout 1) on the laser/ scanner. 4 While SW301 and the laser/scanner interlock are engaged, perform an engine test or self-test to observe paper motion. (See procedures elsewhere in this chapter.) EN Functional checks 155