Printer Operation - Printronix P7000 Series Maintenance Manual

Chapter 3
Troubleshooting Other Symptoms
Symptom
Downloads consistently fail
Boot code won't copy
202
Table 6. General Symptom List

Printer Operation

NOTE: Most download problems are detected by software
during the procedure and communicated by LCD
messages. If downloads fail consistently with no
messages or with erratic messages, suspect a
hardware failure.
1. Power off the printer. Remove the paper path or pedestal
top cover. Check the I/O cable connections from the host
to the printer. Check the parallel cable connection at J112
on the controller board. Inspect all cables for damaged,
bent, broken, or burnt pins. Replace any damaged cables.
Reconnect all I/O cables; make sure all connections are
clean and tight.
2. Remove the flash SIMM. Inspect the SIMM sockets on the
controller board. If any socket pins are bent or damaged,
replace the controller board.
3. Check that customer has the right size SIMM for the
emulation. (See page 297) Install the SIMM that support
the emulation software.
4. Power on the printer. Download the emulation (page 247).
If the download fails, activate the Boot Diagnostics Menu
(page 217) and run MISC. TOOLS MENU / RUN
MEMORY TESTS. If memory fails test, replace the
SDRAM. If memory tests OK, replace the flash SIMM.
1. Power off the printer. Remove the flash SIMM. Inspect the
flash SIMM socket on the controller board. If any SIMM
socket pins are bent or damaged, replace the controller
board.
2. Make sure the blank SIMM is the same size as the SIMM
to be copied. Install the SIMM, making sure it is fully and
correctly seated. Power on the printer. From the Boot
Diagnostics menu, select and run MISC. TOOLS MENU /
COPY BOOT CODE. (See page 217.) If the
DESTINATION NOT DETECTED message appears, the
blank SIMM is not a type supported by the boot code on
the original SIMM. If SOURCE LARGER THAN
DESTINATION appears, the blank SIMM is not large
enough to contain the code on the original SIMM. If the
SIMM does not copy or the ERROR WRITING TO FLASH
message appears, replace the blank SIMM.
3. Power on the printer. From the Boot Diagnostics menu,
select and run MISC. TOOLS MENU / COPY BOOT
CODE. If the new SIMM does not copy, replace the
controller board.
Solution