Disassembly And Assembly For Asf Unit - Epson Stylus Pro 5000 Service Manual

Stylus Pro5000
4.4 DISASSEMBLY AND ASSEMBLY FOR ASF
UNIT
Here explains assembly and disassembly of ASF. Conditions which require
disassembly of ASF unit are as follows.
WARNING
In case of disassembling "ASF Unit", it is
necessary to match gear alignment. Refer to
Section 4.4.2 "Assembling ASF Unit" and
assemble the unit correctly. If you fail to do this,
the operation of ASF unit is locked and may cause
fatal error, or may be unable to feed paper
correctly without appropriate curl unit operation.
Table 4-5. Required Conditions for disassembly of ASF Unit
No. Disassembly conditions and Phenomenon at the printer
1 Upper surface sensor is defective, and the printer goes to fatal
error with severe locking noise everytime the printer tries to
feed a paper. Or paper loading failure, or multi-paper feeding
occur.
2 The value of sensor positioning for upper surface sensor,
which is adjusted at the factory went wrong, and the printer
goes to fatal error with locking noise everytime the printer tries
to feed a paper. Or paper feeding failure or multi-paper feeding
occur very often.
3 Gear teeth skipping is happening between "Gear,10",
"Combination gear,24,24" and "Gear,24" which are located on
the "ASF Unit", and "Roller, Paper Feeding" does not rotate
correctly, even "Combination Gear,24,24" is rotated toward left
manually.
4 When the paper jam occurs, the user pulls out the paper
forcibly, and as a result, the positioning parts of "Curl Unit" on
the "ASF Unit" are damaged or come off.
5 The surface rubber of "Roller, Paper Feeding" is worn out
because of long time use, and it causes paper loading failure
very often.
Rev. B
Chapter4 Disassembly and Assembly
4-68