HP 4300 Service Manual - Page 90
Motor and fan control, Table 31. Printer fans and motors, Motor names, Purpose, Rotation Speed - laserjet 4200 pickup assembly tray 1
UPC - 808736312264
View all HP 4300 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 90 highlights
Motor and fan control The HP LaserJet 4200 printer has three dc brushless motors. The main motor, the lifter driver motor (inside of the lifter driver assembly), and a fan motor. The main motor is used for image formation (rotating the photosensitive drum in the print cartridge) and paper pickup and feed. The lifter motor raises the plate in the tray cassette. The fan motor rotates the fan blades. The HP LaserJet 4300 printer has five dc brushless motors. The main motor, the print cartridge motor, the lifter motor, and two fan motors. the main motor is used for paper pickup and feed. The print cartridge motor rotates the photo sensitive drum (the photosensitive drum used in the larger HP LaserJet 4300 print cartridge is heavier than the one used in the HP LaserJet 4200 printer). The lifter motor raises the plate in the tray cassette. Two fan motors rotate the left- and right-side fans. The DC controller PCA controls the operation of the motors and fans. Table 31. Printer fans and motors Motor names Purpose Type Rotation Speed Motor Fan Main motor (M101) Drives the tray cassette dc HP LaserJet 4200 pickup roller, feed/ motor separation roller, tray 1 pickup roller, pre- transfer roller, photosensitive drum, developing cylinder, pressure roller, and output delivery roller Counter clockwise 2-speed (full and half) Main motor (M101) Drives the tray cassette dc HP LaserJet 4300 pickup roller, feed/ motor separation roller, tray 1 pickup roller pre- transfer roller, pressure roller, and output delivery roller. Counter clockwise 2-speed (full and half) Print cartridge motor (M102) HP LaserJet 4300 Drives the transfer charging roller, photosensitive drum, and developing cylinder. dc Counter 2-speed motor clockwise (full and half) Lifter motor (M103) Moves the tray cassette dc Counter 1-speed HP LaserJet 4200 lifting plate up and motor clockwise HP LaserJet 4300 down. Left-side cooling fan (FN101) HP LaserJet 4200 HP LaserJet 4300 Cools the inside of the printer dc NA motor 2-speed (full and half) Right-side cooling Cools the inside of the dc NA fan (FN102) printer. motor HP LaserJet 4300 1-speed Failure detection Yes Yes Yes Yes Yes Yes 70 Theory of operation Q2431-90912