Service manual

ENGINE SERVICE MODE
G130/G131 5-72 SM
7833
[Coverage] Pixel Coverage Ratio
Displays the image coverage ratio for each color of the last output. This SP mode displays the
“coverage ratio” of the output, i.e. the ratio of the total pixel area of the image data to the total
printable area on the paper. Note that this value is not directly proportional to the amount of toner
consumed, although of course it is one factor that affects this amount. The other major factors
involved include: the type, total image area and image density of the original, toner concentration
and developer potential.
7833 001 Last [K] *BCU
7833 002 Last [C] *BCU
7833 003 Last [M] *BCU
7833 004 Last [Y] *BCU
[0 to 100.00 / - / 0.01 %/step]
Displays accumulated average value of image coverage ratio for each color.
SP7-833-005 to 008 vs SP8-831-001 to 004
The averages for K (SP7-833-005 and SP8-831-001) are the same.
For CMY, SP8-831 does not include black-and-white pages in the middle of a color job. However,
SP7-833 does include these pages in the average. As a result, the readings of SP7-833 will be
lower, because these averages include pages for which there is zero for CMY, but the averages
calculated for SP8-831 do not include these pages.
7833 005 Average [K] *BCU
7833 006 Average [C] *BCU
7833 007 Average [M] *BCU
7833 008 Average [Y] *BCU
[0 to 100.00 / - / 0.01 %/step]
Displays the total number of toner cartridges replaced.
7833 011 Toner [K] *BCU
7833 012 Toner [C] *BCU
7833 013 Toner [M] *BCU
7833 014 Toner [Y] *BCU
[0 to 65535 / - / 1 cartridge/step]
7834 [Coverage Clear]
7834 001 Average Resets the average coverage counters.
7834 002 Toner Resets the toner cartridge counters.
7834 003 S: PREV Toner Resets the sheet counters of the previous
cartridges. The sheet counters count the number
of sheets printed with a toner cartridge.
7834 004 S: Coverage 0-100 Resets the coverage counters.
7834 255 All Executes SP7-834-001 through 004.
[Total Memory Size] 7836
Shows the total storage size.
7901 [Assert Info]
7901 001 File Name
7901 002 # of Lines
7901 003 Location
Records the location where a problem is detected
in the program. The data stored in this SP is used
for problem analysis. DFU