Paper Feed Area Checks - HP LaserJet II Serie Manual De Instrucciones

HP 33440/HP 33449 COMBINED SERVICE MANUAL
Hint
Paper movement through the printer can be visually observed by initiating a
TEST PRINT operation with the Top Cover Assembly open. To do this, open the
,!
*
Top Cover Assembly and defeat the Top Cover Interlock Switch. With one hand,
hold down one of the Drum Sensitivi@ Microswitches (see Figure 7-17) and, with
the other, press the TEST PRINT bution on the lower right side of the printer.
This should feed paper up to the point it enters the Fusing Assembly. By holding
down the fusing system drive lever (see Figure 7-15), the paper will continue
through the Fusing Assembly as well. Note that there will be a momentary
pause in paper movement, followed by an ERROR 51 indimtion. This is normal
operation since the Laser Shutter Arm, normally engaged by the EP-S Cartridge,
does not allow laser light to reach the beam detect mble.
Paper Feed Area
Checks
The following procedures are designed to help identi~ any component(s) –from the Input Tray to
the Registration Ro~ers-that are failing or marginal, musing paper feed problems that result in a
"13 PAPER JAM'7 indimtion.
Table 7-9. Paper Feed Area Checks
2. Is the Paper Tray defective?
See Table 7-11, "Paper Tray Checks."
3. Is the Paper Pickup Solenoid (SL301) See Table 7-12, "SL301 Checks."
operational?
4.
Are the Feed Roller and Separation Pad
See Table 7-13, "Paper Feed Mechanid
Assemblies operational?
Checks."
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