HP LASERJET RESOURCES
A Rare Kind of Paper Jam: P3005, M3027, M3035
Tray 1 Pickup Roller:
Open the front door of the printer to access the roller. Spread the black plastic retainers on each side of the roller away from the roller (Fig. A.), then rotate the top of the roller off of the shaft and lift to remove it. Note the orientation of the roller, and install the new one in the same way. However, the separation pad (see next step) should be replaced before installing the new roller.
Tray 1 Separation Pad:
PLEASE READ CAREFULLY.
- Manually rotate the Tray 1 pickup roller shaft until the cams on the ends of the shaft are pointing up and rearward (Fig. B). This will give you a bit more room to work.
- Now push the separation pad arm down as far as it will go and use a flat-blade screwdriver or pick to pry the old separation pad off of the arm. Do not remove the arm! It is extremely difficult to re-install the arm after it has been removed. To install the new pad, just press it down onto the arm. Make sure it is fully clipped in on both sides. Then rotate the pickup roller shaft back to its normal position (cams down) and install the new pickup roller.
A Rare Kind of Paper Jam: P3005, M3027, M3035
Tray 1 Pickup Roller:
Open the front door of the printer to access the roller. Spread the black plastic retainers on each side of the roller away from the roller (Fig. A.), then rotate the top of the roller off of the shaft and lift to remove it. Note the orientation of the roller, and install the new one in the same way. However, the separation pad (see next step) should be replaced before installing the new roller.
Tray 1 Separation Pad:
PLEASE READ CAREFULLY.
- Manually rotate the Tray 1 pickup roller shaft until the cams on the ends of the shaft are pointing up and rearward (Fig. B). This will give you a bit more room to work.
- Now push the separation pad arm down as far as it will go and use a flat-blade screwdriver or pick to pry the old separation pad off of the arm. Do not remove the arm! It is extremely difficult to re-install the arm after it has been removed. To install the new pad, just press it down onto the arm. Make sure it is fully clipped in on both sides. Then rotate the pickup roller shaft back to its normal position (cams down) and install the new pickup roller.
A Rare Kind of Paper Jam: P3005, M3027, M3035
Symptoms
The paper stops just as it starts to come out of the fuser, and the printer display a paper jam error, but replacing fuser and ECU do not fix it.
Solution
The fact that the paper stops as it exits the fuser would seem to indicate a problem with the exit sensor in the fuser. Replacing the fuser is the normal solution, and in the rare cases where this didn’t fix it, the next suspect would be the ECU board (which reads the sensor). Checking the cables that connect the fuser to the ECU is the last sensible step. But we have seen cases where none of these things fixed this problem.
Strangely enough, you can often fix it by simply removing the formatter board, powering up without it, running an engine test, and then powering down and re-installing the formatter. We’re not sure what’s going on here – maybe a defective formatter, or maybe something just needed to be reset – but the significant thing is that it’s not any of the usual suspects. Note that in a normally functioning P3005, you will hear the printer speed up shortly after it starts to feed paper, as the fuser drive switches from the main motor to the fuser motor. We have noticed that the type of jam described above is often accompanied by a failure to go to the higher speed.
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