5-7
CHAPTER 5 SELF DIAGNOSIS
Code
Cause
The backup data on the CPU PCB is
faulty* or the initial settings have
not been made.
*Be sure to initialize the RAM of
the DC-CPU and enter the values
recorded on the service label.
E020
Timing of detection
xx53 During copying sequence,
gain setting cannot be
performed because of an error
in the memory backup data
(the level of RGAN-P-M/C/Y/
K is '250' or more or '40' or
less).
xx60 During copying sequence, the
level of SGNL-M/C/Y set
initially is '777' or less
because of an error in the
memory backup data.
xx61 During copying sequence, the
level of REF-M/C/Y set
initially is '200' or less
because of an error in the
memory backup data.
xx62 During copying sequence, the
level of PT-REF-M/C/Y set
initially is '777' or less
because of an error in the
memory backup data.
xx63 During copying sequence, the
level of PT-SIG-M/C/Y is
'683' or less or that of PT-SIG-
K is '305' or less because of an
error in the memory backup
data.
xx64 During copying sequence, the
level of PT-REF-D is '400' or
less because of an error in the
memory backup data.
xx65 During copying sequence, the
level of PT-SIG-D is '400' or
less because of an error in the
memory backup data.
xx66 During copying sequence, the
level of D-M-TRGT/D-C-
TRGT/D-Y-TRGT (developer
target value) is '700' or less
because of an error in the
memory backup data.
xx70 During copying sequence, the
level of SGNL-M/C/Y set
initially is '859' or more
because of an error in the
memory backup data.
xx71 During copying sequence, the
level of REF-M/C/Y set
initially is '930' or more
because of an error in the
memory backup data.