Epson Stylus Photo 895 - Page 35

EPSON Stylus PHOTO 895/785EPX Revision A
Operating Principles Overview 35
Figure 2-5. Carriage Mechanism (Top view)
CR home position is detected with the HP sensor and the detection plate molded in the
CR unit as following figure. When the CR home position is detected with this sensor,
HIGH signal is output to the CPU.
Figure 2-6. CR Home Position
Figure 2-7. Outline of Adjust lever
The adjust lever is mounted on the right end of the carriage guide shaft. The carriage
guide shaft is an eccentric shaft and is rotated by operating the adjust lever, and thus
narrows (1.2 mm) or widens (2.1 mm) the gap (platen gap; PG) between the platen
surface and the print head. This is a mechanism for use by the user to select the
appropriate PG in accordance with the print results or other conditions such as the
amount of curl in the paper. Also, the parallelism adjustment bushings mounted on the
left and right ends of the carriage guide shaft adjust the amount of parallelism between
the carriage guide shaft and the platen.
CR Unit
CR Guide Shaft
CR Timing Belt
HP Sensor
CR Motor
Adjust Lever
HP Detection Lever
CR HP Detection Plate
Right Side View
CR HP Detection Plate
HP Detection Lever
Low Signal
High Signal
Table 2-2. Adjust Lever Setting
Lever Setting
Position
Amount of PG Correction
Front Side
0mm
（
PG
：
1.2mm
）
Deep Side
+0.9mm （PG: 2.1mm）
Parallelism Adjustment Bushing
Adjust
AdjustAdjust
Adjust Lever
Carriage Guide Shaft
Eccentric Shaft