HP LaserJet 4345mfp Series - Page 260

8 CAUTION: Do not let the pickup roller shaft slide into the MFP when you install the gear. The
groove on the shaft that the gear clips into can get stuck on the MFP chassis. Put pressure on
the cassette feed-roller shaft to keep the shaft from slipping into MFP. See the following figure.
Figure 6-135 Cassette feed-roller shaft (push here while replacing the gear)
230 6 Removal and replacement