Minolta CF2002, Service Manual

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FrameMaker Ver5.5E(PC) CF3102/CF2002 TROUBLESHOOTING
02.06.13
T-73
4-2. Troubleshooting Image Quality Problems
• This chapter is divided into two parts: “Initial Check Items” and “Troubleshooting Proce-
dure by a Particular Image Quality Problem.”
• When an image quality problem occurs, first go through the “Initial Check Items” and, if
the cause is yet to be identified, go to “Troubleshooting Procedure by a Particular Image
Quality Problem.”
4-3. Initial Check Items
1. Check first to see if image data is properly transmitted between IR and memory, and
between memory and printer.
2. Let the copier produce a test print and determine whether the image problem is attribut-
able to the IR or printer system.
• Evaluation Procedure
Action Result Next Step
Enter the Tech. Rep. Mode, select “Machine Adjust”
→
“Memory/Hard Disk Adjust”
→
“Memory Bus Check,”
and select and carry out “IR
→
Memory” and “Mem-
ory
→
PRT” checks.
OK Initial check item (2)
NG
T- 58, 59
(action as instructed)
Image Problem Action Result Cause Next Step
Lines, bands
From “Tech. Rep. Mode,” select “Test
Print”
→
“Halftone Pattern”
→
“SIN-
GLE”
→
“HYPER”
→
“Gradation”
→
“C
→
M
→
Y
→
Bk”
→
“Density 64,”
and produce a test print. Is image
problem evident?
YES Printer
Initial check
item (3)
NO IR T-75
4025T575CA