Canon GP335 Service Manual page 608

CHAPTER 14 TROUBLESHOOTING
Level 1 Level 2
FUNCTION INSTALL
CCD
DENS
DPC
CST
FIXING
PANEL
CLEAR
MISC-R
MISC-P
The upper right corner of the screen indicates the state of the machine. Be sure to pay attention to the
indication when executing service mode: the following messages are often indicated:
<READY> The machine is ready to accept a servicing/copying job.
<SERVICE> The copier is executing service mode. This message remains while operations are being
checked in service mode.
14-190
ADJUST Items
Level 3 Outline
TONER-S toner stirring. (automatically stops in about 4 mm)
CCD-ADJ shading auto correction. (reads the density of the standard white
plate)
MAN-ADJ shading auto correction (reads the difference between the
standard white paper and the white plate)
WHITE-ME standard white paper density read
PD-DENS text, text/photo mode image adjustment pattern output
PD-ME PD-DENS output read
DZ-DENS photo mode image adjustment pattern output (white patches)
DZ-ME DZ-DENS output read mode
D-GAMMA photosensitive drum resistance measurement (forced APVC
mode)
MF-A4R multifeeder paper width basic value storage (A4R)
MF-A6R multifeeder paper width basic value storage (A6R)
MF-A4 multifeeder paper width basic value storage (A4)
NIP-CHK nip width creation mode
LCD-CHK LCD dot check
LED-CHK control panel LED activation check
LED-OFF control panel LED deactivation check
KEY-CHK
control panel key press check
TOUCHCHK analog panel coordinate position adjustment
ERR E000 series error initialization
DC-CON DC controller PCB RAM initialization
IP image processor PCB RAM initialization
MMI-COPY copier control panel back-up RAM initialization
MMI-FAX fax control panel back-up RAM initialization
MMI-COM common setting back-up RAM initialization
SERVICE service mode back-up RAM initialization
FAX FAX board RAM initialization
JAM-HIST jam history initialization
ERR-HIST error code history initialization
SCANLAMP scanning lamp activation check
IP-CHK image processor PCB self diagnosis
P-PRINT ADJUST, OPTION, COUNTER storage data generation
KEY-HIST copier operation analysis key input report
COPYRIGHT © 1999 CANON INC. CANON 405/335 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)