Cd-R Tray Base Lock Mechanism - Epson Stylus Photo R1800 Service Manual

EPSON Stylus Photo R1800/R2400

2.2.3.3 CD-R Tray Base Lock Mechanism

To prevent the Print Head from being damaged by mistake, the printer is
designed to lock the CD-R Tray Base when the Carriage Unit is out of its home
position.
The following explains the lock mechanism of the CD-R Tray Base.
Lock Release Sequence
1. When the Carriage Unit returns to its home position, the Pump
Motor drive is transmitted to the Paper EJ Lock Release Cam.
2. The salient of the Cam presses down the Paper EJ Transmission
Lock Lever to release the tab of the Paper EJ Lock Lever from the
Paper EJ Transmission Lock Lever.
3. The CD-R Release Lever comes free from the Paper EJ Lock
Lever and comes down to enable the CD-R Tray Base to open.
When the Carriage Unit is out of its home position, the salient of the Paper EJ
Lock Release Cam does not press down the Paper EJ Transmission Lock
Lever, and the tab of the Paper EJ Lock Lever is not released. Therefore, the
CD-R Tray Base cannot be opened.
Operating Principles
CD-R Tray Base
CD-R Release Lever
Figure 2-6. CD-R Tray Base Lock Mechanism
Printer Mechanism
Paper EJ
Lock Lever
Paper EJ
Transmission
Lock Lever
Paper EJ
Lock Release
Cam
Tab Jointed position Salient
Revision B
23